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OCCTSwift

API Reference

Complete mapping of OCCTSwift operations to OCCT C++ classes.

Wrapped Operations Summary

Category Count Examples
Primitives 13 box, cylinder, cylinder(at:), sphere, cone, torus, surface, wedge, halfSpace, vertex, shell(from surface), shell(from Surface), nonUniformScale
Sweeps 23 pipe sweep, pipeShell, pipeShellWithTransition, pipeShellWithLaw, extrude, revolve, loft, loft(ruled+vertex), ruled, revolutionFromCurve, ruledShell, advancedEvolved, pipeSweep, compatibleWires, thruSectionsCreate, thruSectionsAddWire, thruSectionsAddVertex, thruSectionsSetSmoothing, thruSectionsSetMaxDegree, thruSectionsSetContinuity, thruSectionsBuild, thruSectionsShape, thruSectionsRelease
Booleans 13 union (+), subtract (-), intersect (&), section, booleanCheck, fuseAll, commonAll, fusedAndBlended, cutAndBlended, sectionWithTolerance, splitMulti, cutWithHistory, defeatureWithTolerance
Modifications 33 fillet, selective fillet, variable fillet, multi-edge blend, chamfer, chamferTwoDistances, chamferDistAngle, shell, offset, offsetByJoin, draft, defeature, convertToNURBS, makeDraft, hollowed, filletEvolving, offsetPerFace, fillet2DFace, chamfer2DFace, anaFillet, anaFillet(edge/wire), filletAlgo, filletAlgo(edge/wire), offsetWire, draftFromWire, addFillet2d, addChamfer2d, addChamfer2dAngle, modifyFillet2d, removeFillet2d, removeChamfer2d
Transforms 10 translate, rotate, scale, mirror, mirrorAboutPoint, mirrorAboutAxis, scaleAboutPoint, translated(from:to:), transformed(matrix:), gTransformed(matrix:)
Wires 30 rectangle, circle, polygon, polygon3D, line, arc, bspline, nurbs, path, join, offset, offset3D, interpolate, fillet2D, filletAll2D, chamfer2D, chamferAll2D, helix, helixTapered, orderedEdgeCount, orderedEdgePoints, orderedEdgePointCount, analyze, wireFromEdges, edges, allEdgePolylines, edgePolyline, bounds
Curve Analysis 6 length, curveInfo, point(at:), tangent(at:), curvature(at:), curvePoint(at:)
2D Curves (Curve2D) 97 line, segment, circle, arc, ellipse, parabola, hyperbola, bspline, bezier, interpolate, fit, trim, offset, reverse, translate, rotate, scale, mirror, curvature, normal, inflection, intersect, project, Gcc solver, hatch, bisector, draw, evaluateGrid, evaluateGridD1, lineThroughPoints, lineParallel, isLinear, convertToLine, simplifyBSpline, approximated, GccAna bisectors (point/line/circle), GccAna line solvers (parallel/perpendicular/oblique), Geom2dGcc circle/line on-constraint solvers, IntAna2d intersections, Extrema2d distances, curvatureExtremaDetailed, inflectionPointsDetailed, Bisector_BisecAna
3D Curves (Curve3D) 84 line, segment, circle, arc, ellipse, parabola, hyperbola, bspline, bezier, interpolate, fit, trim, reverse, translate, rotate, scale, mirror, length, curvature, tangent, normal, torsion, toBSpline, toBezierSegments, join, approximate, drawAdaptive, drawUniform, drawDeflection, projectedOnPlane, evaluateGrid, evaluateGridD1, planeNormal, minDistance(toCurve), extrema, intersectSurface, distanceToSurface, toAnalytical, quasiUniformParameters, quasiUniformDeflectionPoints, continuityBreaks, arcOfEllipse(angles), arcOfEllipse(points), joined(curves), projectPoint, validateRange, samplePoints, arcOfHyperbola, arcOfParabola, convertToPeriodic, splitAt, ellipseThreePoints, hyperbolaThreePoints
Surfaces (Surface) 86 plane, cylinder, cone, sphere, torus, extrusion, revolution, bezier, bspline, trim, offset, translate, rotate, scale, mirror, toBSpline, approximate, uIso, vIso, pipe, drawGrid, drawMesh, curvatures, projectCurve, projectCurveSegments, projectCurve3D, projectPoint, plateThrough, nlPlateDeformed, nlPlateDeformedG1, nlPlateDeformedG2, nlPlateDeformedG3, nlPlateDeformedIncremental, nlPlateDerivative, evaluateGrid, intersections, toAnalytical, bezierFill(4-curve), bezierFill(2-curve), singularityCount, isDegenerated, hasSingularities, toBezierPatchGrid, bsplineFill(2-curve), bsplineFill(4-curve), extrema, valueOfUV, nextValueOfUV, conicalSurface(axis), conicalSurface(points), cylindricalSurface(axis), cylindricalSurface(points), planeFromPoints, planeFromPointNormal, trimmedCone, trimmedCylinder, knotSplitting, joinBezierPatches, convertToAnalytical, splitByContinuity, generatedFromSections, degeneratedBoundaryValue, isDegeneratedBoundary, boundaryWithSurfaceEvaluate, averagePlane, plateErrors
Face Analysis 20 uvBounds, point(atU:v:), normal, gaussianCurvature, meanCurvature, principalCurvatures, surfaceType, area, project, allProjections, intersection
Edge Analysis 26 parameterBounds, curveType, point(at:), curvature, tangent, normal, centerOfCurvature, torsion, project, hasCurve3D, isClosed3D, isSeam, adjacentFaces, dihedralAngle, split
Feature-Based 36 boss, pocket, prism, drilled, split, glue, evolved, evolvedAdvanced, linearPattern, circularPattern, linearRib, revolutionForm, draftPrism, draftPrismThruAll, revolFeature, revolFeatureThruAll, pipeFeature, extrudedSemiInfinite, prismUntilFace, pipeFeatureFromProfile, localRevolution, localRevolutionWithOffset, locOpeDraftPrism, localPipe, localLinearForm, localRevolutionForm, splitFace, splitEdge, splitDrafts, commonEdges, edgesInFace, cylindricalHole, cylindricalHoleBlind, cylindricalHoleThruNext, cylindricalHoleStatus, locOpeGlue
Healing/Analysis 69 analyze, fixed, unified, simplified, withoutSmallFaces, wire.fixed, face.fixed, divided, directFaces, scaledGeometry, bsplineRestriction, sweptToElementary, revolutionToElementary, convertedToBSpline, sewn, upgraded, fastSewn, normalProjection, fixedWireframe, removingInternalWires, fusedEdges, simpleOffset, fixingSmallFaces, removingLocations, quilt, splitByAngle, droppingSmallEdges, splittingFace, freeBounds, fixedFreeBounds, withSurfacesAsBSpline, withSurfacesAsRevolution, checkSmallFaces, purgedLocations, curveOnSurfaceCheck, connectedEdges, convertedToBezier, limitTolerance, setTolerance, splitCommonVertices, connectedFaces, fixEdgeSameParameter, fixEdgeVertexTolerance, fixWireVertices, removeSmallSolids, mergeSmallSolids, bsplineRestriction(advanced), freeBoundsAnalysis, closedFreeBoundInfo, openFreeBoundInfo, closedFreeBoundWire, openFreeBoundWire, wireVertexAnalysis, wireVertexStatus, nearestPlane, shellSewing, trsfModification, gtrsfModification, deepCopy(modifier), bsplineRestrictionConfigurable, convertToBSplineConfigurable
Measurement 36 volume, surfaceArea, centerOfMass, properties, distance, distance(wire/edge/face), minDistance, intersects, intersects(wire/edge/face), inertiaProperties, surfaceInertiaProperties, allDistanceSolutions, isInside, findSurfaceEx, findPlane, analyzePointCloud, edgeEdgeExtrema, pointFaceExtrema, faceFaceExtrema, pointEdgeExtrema, edgeFaceExtrema, polyhedralDistance
Point Classification 3 classify(point:) on solid, classify(point:) on face, classify(u:v:) on face
Shape Proximity 2 proximityFaces, selfIntersects
Law Functions 7 constant, linear, sCurve, interpolate, bspline, value(at:), bounds
Plate Solver 10 create, loadPinpoint, loadDerivativeConstraint, loadGtoC, solve, isDone, evaluate, evaluateDerivative, uvBox, continuity
Import/Export 17 STL, STEP, IGES, BREP, OBJ import; STL, STEP, IGES, BREP, OBJ, PLY export; STEP optimize; mesh
Shape Editing 19 replacingSubShape, removingSubShape, makePeriodic, repeated, makeVolume, makeConnected, middlePath, copy, removingSubShapes, replacingSubShapes, dividedClosedEdges, faceRestricted, dividedByArea, dividedByParts, dividedClosedFaces, dividedByContinuity, intersectLine, substituted, builtFromFaces
Polynomial Solver 3 quadratic, cubic, quartic
Hatch Pattern 1 generate
Geometry Construction 12 face from wire, face with holes, solid from shell, solidFromShell(BRepLib), solidFromShells, sew, fill, plateSurface, plateCurves, plateSurfaceAdvanced, plateSurfaceMixed, constrainedFill
Bounds/Topology 17 bounds, orientedBoundingBox, orientedBoundingBoxCorners, size, center, vertices, edges, faces, solids, shells, wires, subShapeCount, subShape, subShapes, fromEdge, fromFace, projectWire(Wire)
Slicing 4 sliceAtZ, sectionWiresAtZ, edgePoints, contourPoints
Validation 14 isValid, heal, checkResult, detailedCheckStatuses, faceCheckResult, checkSolid, checkShape, checkShapeDetailed, analyzeValidity, isSubShapeValid, checkEdge, checkWire, checkShell, checkVertex
XDE/Document 28 Document.load, rootNodes, AssemblyNode, colors, materials, setColor, setMaterial, dimensions, geomTolerances, datums, lengthUnit, layerCount, layerName, layerNames, materialCount, materialInfo, materials
Shape Census 2 contents, recognizeCanonical
Find Surface 2 findSurface, contiguousEdgeCount
2D Drawing 8 project, topView, frontView, visibleEdges, hiddenEdges, projectFast, fastTopView, fastIsometricView
Camera 14 eye, center, up, projectionType, fieldOfView, scale, zRange, aspect, projectionMatrix, viewMatrix, project, unproject, fit
Selection 11 add, remove, clear, activateMode, deactivateMode, isModeActive, pixelTolerance, pick, pickRect, pickPoly
Presentation Mesh 2 shadedMesh, edgeMesh
Medial Axis 12 compute, arcCount, nodeCount, basicElementCount, node(at:), arc(at:), nodes, arcs, minThickness, distanceToBoundary, drawArc, drawAll
Topological Naming 13 createLabel, recordNaming, currentShape, storedShape, namingEvolution, namingHistory, oldShape, newShape, tracedForward, tracedBackward, selectShape, resolveShape, deepCopy
TDF/OCAF Framework 31 mainLabel, tag, depth, isNull, isRoot, father, root, hasAttribute, attributeCount, hasChild, childCount, findChild, forgetAllAttributes, descendants, setName, setReference, referencedLabel, copyLabel, openTransaction, commitTransaction, abortTransaction, hasOpenTransaction, setUndoLimit, undoLimit, undo, redo, availableUndos, availableRedos, setModified, clearModified, isModified
TDataStd Attributes 25 setInteger, integer, setReal, real, setAsciiString, asciiString, setComment, comment, initIntegerArray, setIntegerArrayValue, integerArrayValue, integerArrayBounds, initRealArray, setRealArrayValue, realArrayValue, realArrayBounds, setTreeNode, appendTreeChild, treeNodeFather, treeNodeFirstChild, treeNodeNext, treeNodeHasFather, treeNodeDepth, treeNodeChildCount, namedData(set/get/has integer/real/string)
TDataXtd Attributes 16 setShapeAttr, shapeAttribute, hasShapeAttribute, setPositionAttr, positionAttribute, hasPositionAttribute, setGeometryType, geometryType, hasGeometryAttribute, setTriangulationFromShape, triangulationNodeCount, triangulationTriangleCount, triangulationDeflection, setPointAttr, setAxisAttr, setPlaneAttr
TFunction Framework 13 setLogbook, logbookSetTouched, logbookSetImpacted, logbookIsModified, logbookClear, logbookIsEmpty, setGraphNode, graphNodeAddPrevious, graphNodeAddNext, setGraphNodeStatus, graphNodeStatus, graphNodeRemoveAllPrevious, graphNodeRemoveAllNext
TFunction Function 4 setFunctionAttribute, functionIsFailed, functionFailure, setFunctionFailure
OCAF Persistence 17 defineFormatBin, defineFormatBinL, defineFormatXml, defineFormatXmlL, defineFormatBinXCAF, defineFormatXmlXCAF, defineAllFormats, saveOCAF, loadOCAF, saveOCAFInPlace, createWithFormat, isSaved, storageFormat, setStorageFormat, documentCount, readingFormats, writingFormats
STEP Full Coverage 25 StepModelType enum (7 values), writeSTEP(modelType:), writeSTEP(modelType:tolerance:), writeSTEPCleanDuplicates, stepRootCount, loadSTEPRoot, loadSTEP(unitInMeters:), stepShapeCount, STEPReaderModes, STEPWriterModes, Document.loadSTEP(modes:), Document.writeSTEP(modelType:modes:), fromPath variants
IGES/OBJ/PLY Full Coverage 23 igesRootCount, loadIGESRoot, igesShapeCount, loadIGESVisible, writeIGES(unit:), writeIGESBRep, writeIGES(shapes:), Document.loadOBJ, Document.loadOBJ(singlePrecision:), Document.loadOBJ(inputCS:outputCS:), Document.writeOBJ, Document.writePLY(normals:colors:texCoords:), writePLY(options:), MeshCoordinateSystem enum
XDE/XCAF Full Coverage 42 shapeCount, shapeLabelId, freeShapeCount, freeShapeLabelId, isTopLevel, isComponent, isCompound, isSubShape, findShape, searchShape, subShapeCount, subShapeLabelId, addShape, newShapeLabel, removeShape, addComponent, removeComponent, componentCount, componentLabelId, componentReferredLabelId, shapeUserCount, updateAssemblies, expandShape, setShapeColor, shapeColor, isShapeColorSet, setLabelVisibility, getLabelVisibility, setArea, getArea, setVolume, getVolume, setCentroid, getCentroid, setLayer, isLayerSet, getLabelLayers, findLayer, setLayerVisibility, getLayerVisibility, editorExpand, rescaleGeometry
Length Dimension 7 fromPoints, fromEdge, fromFaces, value, isValid, geometry, setCustomValue
Radius Dimension 4 fromShape, value, geometry, setCustomValue
Angle Dimension 7 fromEdges, fromPoints, fromFaces, value, degrees, geometry, setCustomValue
Diameter Dimension 4 fromShape, value, geometry, setCustomValue
Text Label 5 create, text, position, setHeight, getInfo
Point Cloud 6 create, createColored, count, bounds, points, colors
KD-Tree 5 build, nearest, kNearest, rangeSearch, boxSearch
Shape History 1 History (create, addModified, addGenerated, remove, isRemoved, hasModified, hasGenerated, hasRemoved, modifiedCount, generatedCount)
Contour Analysis 3 contourSphereDir, contourCylinderDir, contourSphereEye
IntCurvesFace 1 intersectLine (line-face intersection)
BOPAlgo Utilities 17 split (splitter), CellsBuilder (create, addAll, removeAll, removeInternalBoundaries, result), analyzeBoolean, removeFeatures, section(instance), section(static), buildFaces, buildSolids, splitShell, edgesToWires, wiresToFaces, makeWire
IntTools 6 edgeEdgeIntersection, edgeFaceIntersection, faceFaceIntersection, classifyPoint2d, isHole, beanFaceIntersect
BOPTools 4 normalOnEdge, pointInFace, isEmpty, isOpenShell
PCurve / BRepAdaptor 3 pcurveParams, pcurveValue, approxCurveOnSurface
Mesh Deflection 2 computeAbsoluteDeflection, deflectionIsConsistent
Shape from Mesh 1 fromMesh (BRepBuilderAPI_MakeShapeOnMesh)
Plate Surface 1 plateSurface (GeomPlate_BuildPlateSurface + MakeApprox)
BRepLib Topology 9 edgeFromLine, edgeFromPoints, edgeFromCircle, faceFromPlane, faceFromCylinder, shellFromPlane, computeNormals, pointCloudByTriangulation, pointCloudByDensity
2D Edges 3 edge2d(points), edge2dFromCircle, edge2dFromLine
BRepTools Modifier 1 nurbsConvertViaModifier
ShapeCustom 2 directModification, trsfModificationScale
LocOpe Extensions 5 buildWires, splitByWireOnFace, curveShapeIntersect, locOpeSplit, locOpeSplitAuto
CPnts Deflection 2 uniformDeflection, uniformDeflection(range)
IntCurvesFace 2 rayIntersect, rayIntersectNearest
GeomLProp 2 curveLocalProps, surfaceLocalProps
BRepOffset 1 simpleOffsetShape
Approx 1 curvilinearParameter
GeomInt 1 surfaceSurfaceIntersection
Contap 2 contapContourDirection, contapContourEye
BRepFeat 6 featFuse, featCut, splitByEdge, splitByWire, splitWithSides, glue
GeomFill Filling 3 coonsFilling, curvedFilling, coonsAlgPatch
GeomFill Sweep 1 geomFillSweep
GeomFill Section 1 evolvedSectionInfo
ProjLib 2 projectOntoSurface, projectOntoPolarSurface
BRepOffset 1 offsetFace
Adaptor3d IsoCurve 4 uIsoCurvePoints, vIsoCurvePoints, uIsoCurveEdge, vIsoCurveEdge
ShapeAnalysis Transfer 2 transferParameterToFace, transferParameterFromFace
ShapeBuild Edge 9 copyEdge, copyEdgeReplacingVertices, setEdgeRange3d, buildEdgeCurve3d, removeEdgeCurve3d, copyEdgeRanges, copyEdgePCurves, removeEdgePCurve, reassignEdgePCurve
ShapeBuild Vertex 2 combineVertex, combineVertices(static)
ShapeExtend Explorer 2 sortedCompound, predominantShapeType
ShapeUpgrade Divide 4 divideFace, divideWire, analyzeEdgeDivide, canDivideClosedEdge
ShapeUpgrade Fix 2 fixSmallCurves, fixSmallBezierCurves
ShapeUpgrade Convert 2 convertCurves3dToBezier, convertSurfacesToBezier
Point2D (Geom2d_CartesianPoint) 13 create, x, y, setCoords, distance, squareDistance, translated, rotated, scaled, mirroredPoint, mirroredAxis, distanceToCurve, transformed
Transform2D (Geom2d_Transformation) 14 identity, translation, rotation, scale, mirrorPoint, mirrorAxis, inverted, composed, powered, apply, scaleFactor, isNegative, matrixValues, applyToCurve
AxisPlacement2D (Geom2d_AxisPlacement) 5 create, origin, direction, reversed, angle
Vector2D Utilities 5 angle, cross, dot, magnitude, normalize
Direction2D Utilities 3 normalize, angle, cross
LProp AnalyticCurInf 1 analyticCurvaturePoints (inflection/min/max curvature for analytic curves)
Curve2D ↔ Point2D 3 pointAt, segment(from:Point2D), project(Point2D)
FairCurve 2 fairCurveBatten, fairCurveMinimalVariation
LocalAnalysis 4 curveContinuity, curveContinuityFlags, surfaceContinuity, surfaceContinuityFlags
TopTrans 4 surfaceTransition, surfaceTransitionWithCurvature, curveTransition, curveTransitionWithCurvature
GeomFill Trihedrons 7 draftTrihedron, discreteTrihedron, correctedFrenet, frenetTrihedron, fixedTrihedron, constantBiNormalTrihedron, darbouxTrihedron
GeomFill NSections 2 nSections, nSectionsInfo
Law Extensions 2 composite, knotSplitting
GccAna Circ2d3Tan 6 circleThrough3Points, circleTangent3Lines, circleTangent3Circles, circleTangent2CirclesPoint, circleTangentCircle2Points, circleTangent2LinesPoint
Polygon Interference 2 polygonInterference, polygonSelfInterference
ChFi2d Edge Operations 2 chamfer2dEdges, fillet2dEdges
FilletSurf 2 filletSurfaces, filletSurfError
HLR Extended 6 hlrEdges (by category), hlrPolyEdges, hlrCompoundOfEdges, reflectLines, reflectLinesFiltered, edgeFaceTransition
Interval Arithmetic 23 Interval create/bounds/isProbablyEmpty/position/isBefore/isAfter/isInside/isEnclosing/isSimilar/setStart/setEnd/fuseAtStart/fuseAtEnd/cutAtStart/cutAtEnd, IntervalSet create/createEmpty/count/bounds/unite/subtract/intersect/xUnite
Ray-Shape Intersection (BRepIntCurveSurface) 4 lineIntersection, curveIntersection, allHits, hitFace
ShapeConstruct Triangulation 2 triangulationFromPoints, triangulationFromWire
Surface Periodic Conversion 2 convertToPeriodic, conversionGap
Mesh Linear Properties 2 meshPolygonPoints (edge), meshCinertCompute
Mesh Surface/Volume Properties 2 meshProps(surface), meshProps(volume)
Mesh Shape Utilities 3 maxMeshTolerance, meshMaxDimension, uvPoints
Edge Validation 1 validate(on:face:tolerance:)
BiTgte Blend 1 biTgteBlend (rolling-ball blend on edges)
GeomConvert Approx 2 approxWithDetails (curve), approxWithDetails (surface)
GCPnts Sampling 2 quasiUniformParameters (edge), tangentialDeflectionPoints (edge)
BRepGProp Per-Face 5 curveInertia, surfaceInertia, surfaceInertia(epsilon:), volumeInertia, volumeInertia(planeNormal:)
Curve-Surface Projection 1 projectOnSurface
Preview Shapes 1 previewBox (degenerate-safe box preview)
GeomPoint3D (Geom_CartesianPoint) 8 create, x, y, z, setCoordinates, distance, squareDistance, translate
GeomDirection (Geom_Direction) 4 create, coordinates, setCoordinates, crossed
GeomVector3D (Geom_VectorWithMagnitude) 9 create, fromPoints, coordinates, magnitude, dot, added, multiplied, normalized, crossed
Axis1Placement (Geom_Axis1Placement) 7 create, location, direction, reverse, reversed, setDirection, setLocation
Axis2Placement (Geom_Axis2Placement) 7 create, location, mainDirection, xDirection, yDirection, setDirection, setXDirection
ShapeConstruct Curve 4 convertSegmentToBSpline3D, convertSegmentToBSpline2D, adjustEndpoints3D, adjustEndpoints2D
Bisector Intersection 2 bisectorIntersections (point-point bisector intersection), BisectorPoint data
GeomLib Tool 3 parameterOf (3D curve), parametersOf (surface UV), parameterOf (2D curve)
GeomLib IsPlanarSurface 2 isPlanar, planarPlane (extract plane from surface)
GeomLib CheckBSpline 4 checkBSplineTangents (3D/2D), fixBSplineTangents (3D/2D)
GeomLib Interpolate 1 polynomialInterpolation (BSpline through points at parameters)
GccAna Circ2d2TanRad 2 circlesTangentToLines, circlesThroughPointsWithRadius
GccAna Circ2dTanCen 2 circleThroughPointCentered, circleTangentToLineCentered
GccAna Lin2d2Tan 2 lineThroughPoints, linesTangentToCircleThroughPoint
Approx SameParameter 1 checkSameParameter (3D vs 2D on surface)
ShapeUpgrade CurveSplit 3 splitByContinuity (3D/2D), convertToBezierSegments (2D)
ShapeUpgrade SurfaceSplit 3 splitSurfaceByContinuity, splitByAngle, splitByArea
GeomConvert Recognition 5 curveToAnalytical, arePointsLinear, surfToAnalyticalWithGap, surfToAnalyticalBounded, isCanonical
Geom2dConvert 1 approxArcsAndSegments (approximate 2D curves as arcs/lines)
Poly_Polygon2D 5 create, nodeCount, node, nodes, deflection
Poly_Polygon3D 8 create, createWithParams, nodeCount, node, nodes, hasParameters, parameter, deflection
Poly_PolygonOnTriangulation 7 create, createWithParams, nodeCount, nodeIndex, hasParameters, parameter, deflection
Poly_MergeNodesTool 1 mergedMeshNodes (merge duplicate vertices from shape triangulations)
Poly_CoherentTriangulation 12 create, createFromMesh, setNode, addTriangle, removeTriangle, triangleCount, computeLinks, linkCount, deflection, removeDegenerated, getResult, nodeCoords
BRepFill_Evolved 1 evolved (face spine + wire profile sweep)
BRepFill_OffsetAncestors 3 create, hasAncestor, ancestor (trace offset wire edge ancestry)
BRepExtrema_DistanceSS 1 distanceSS (sub-shape to sub-shape minimum distance)
BRepGProp_VinertGK 1 vinertGK (Gauss-Kronrod volume integration on face)
GeomFill_Profiler 8 create, addCurve, perform, degree, poleCount, knotCount, isPeriodic, poles, knotsAndMults
GeomFill_Stretch 1 stretchFill (4-boundary stretch surface)
GeomFill_LocationDraft 4 create, setCurve, evaluate, setAngle, direction
GeomFill_GuideTrihedronAC 2 create+setCurve, evaluate (arc-length corrected guide frame)
GeomFill_GuideTrihedronPlan 2 create+setCurve, evaluate (planar guide frame)
GeomFill_SectionPlacement 1 sectionPlacement (place section on sweep path)
BRepFill_NSections 3 create, lawCount, isConstant, isVertex
GeomFill_AppSurf 1 appSurf (approximate surface from section curves)
ShapeFix_ComposeShell 1 composeShell (split face into sub-faces)
Extrema 3D/2D 10 extremaCC, extremaCCPoint, extremaCS, extremaCSPoint, extremaPS, extremaPSPoint, extremaSS, extremaSSPoint, locateExtremaCC, locateExtremaCC2d
GeomTools Persistence 6 serializeCurves (3D), deserializeCurves (3D), serializeCurves (2D), deserializeCurves (2D), serializeSurfaces, deserializeSurfaces
ProjLib Projection 1 projectOnSurface (BSpline approximation)
gce 3D Geometry Factories 11 circleThrough3Points, circleFromCenterNormal, lineFrom2Points, directionFrom2Points, ellipseFromCenterNormal, hyperbolaFromCenterNormal, parabolaFromCenterNormal, coneFrom2PointsRadii, cylinderFrom3Points, planeFromEquation, planeFrom3Points
gce 2D Geometry Factories 7 circleFromCenterRadius, circleThrough3Points, lineFrom2Points, lineFromEquation, ellipseFromCenterDir, hyperbolaFromCenterDir, parabolaFromCenterDir
Quantity_Color 17 fromName, fromHex, fromHexRGBA, toHex, toHexRGBA, distance, squareDistance, deltaE2000, hls, fromHLS, withIntensityChanged, withContrastChanged, sRGB, linearRGB, lab, namedColorName, epsilon
Graphic3d Material/PBR 7 predefinedMaterialCount, predefinedMaterialName, predefinedMaterial(named:), predefinedMaterial(at:), minRoughness, roughnessFromSpecular, metallicFromSpecular
Quantity_Period 9 create, createFromSeconds, components, totalSeconds, add, subtract, compare, isValid, isValidSeconds
Quantity_Date 9 create, epoch, components, addPeriod, subtractPeriod, difference, compare, isValid, isLeap
Font_FontMgr 6 initDatabase, fontCount, fontName, fontPath, fontHasAspect, aspectToString
Image_AlienPixMap 15 create, release, initTrash, initCopy, clear, width, height, format, isEmpty, getPixel, setPixel, save, load, adjustGamma, sizePixelBytes, isTopDownDefault
XCAFDoc_Location 3 setLocation, getLocation, hasLocation
XCAFDoc_GraphNode 10 setGraphNode, setChild, setFather, unSetChild, unSetFather, nbChildren, nbFathers, getChild, getFather, isFather
XCAFDoc_Color 7 setColor (RGB/RGBA/NOC/components), getColor, getColorRGBA, getAlpha, getNOC
XCAFDoc_Material 6 setMaterial, getName, getDescription, getDensity, getDensName, getDensValType
XCAFDoc Notes 14 createComment, createBalloon, createBinData (array), nbNotes, nbAnnotatedItems, deleteNote, deleteAllNotes, nbOrphanNotes, deleteOrphanNotes, noteUserName, noteTimeStamp, noteCommentText, noteBinDataSize, noteBinDataTitle
XCAFDoc_ClippingPlaneTool 7 addClippingPlane, getClippingPlane, isClippingPlane, removeClippingPlane, getClippingPlaneCount, setCapping, getCapping
XCAFDoc_ShapeMapTool 4 setShapeMap, isSubShape, shapeMapExtent, hasShapeMap
XCAFDoc_AssemblyGraph 8 createFromDoc, release, nbNodes, nbLinks, nbRoots, getNodeType, hasChildren, isDirectLink
XCAFDoc_AssemblyItemId 5 createFromString, toString, isNull, isEqual, pathCount
XCAFView_Object 15 create, release, projectionType, projectionPoint, viewDirection, upDirection, zoomFactor, windowSize, frontPlane, backPlane, unsetFrontPlane, unsetBackPlane, hasVolumeSidesClipping, name, setName
XCAFNoteObjects_NoteObject 9 create, release, hasPlane, getPlane, setPlane, hasPoint, getPoint, setPoint, reset
XCAFPrs_Style 7 isEmpty, setColorSurf, getColorSurf, setColorCurv, setVisibility, isVisible, isEqual
XCAFDoc_VisMaterialCommon 1 create (struct with diffuse/ambient/specular/emissive, shininess, transparency)
XCAFDoc_VisMaterialPBR 1 create (struct with baseColor, metallic, roughness, IOR, emissiveFactor)
VrmlAPI_Writer 2 writeVRML (shape), writeVRML (document with scale)
TDataStd_Directory 4 createDirectory, hasDirectory, addSubDirectory, makeObjectLabel
TDataStd_Variable 13 setVariable, setVariableName, variableName, setVariableValue, variableValue, variableIsValued, setVariableUnit, variableUnit, setVariableConstant, variableIsConstant, assignExpression, desassignExpression, variableIsAssigned
TDataStd_Expression 4 setExpression, setExpressionString, expressionString, expressionName
TDocStd_XLink 5 setXLink, setXLinkDocumentEntry, xLinkDocumentEntry, setXLinkLabelEntry, xLinkLabelEntry
XCAFDimTolObjects_Tool 2 dimTolToolDimensionCount, dimTolToolToleranceCount
TPrsStd_DriverTable 3 initStandard, exists, clear
TObj_Application 4 shared, isVerbose, setVerbose, createDocument
UnitsAPI 7 convert, toSI, fromSI, toLocalSystem, fromLocalSystem, currentSystem, check
BinTools 4 toBinaryData, fromBinaryData, writeBinary, loadBinary
Message_Messenger 6 create, release, send, sendInfo, sendWarning, sendAlarm
Message_Report 7 create, release, addAlert, alertCount, clearAlerts, sendAlerts, isActive
RWMesh_CoordinateSystemConverter 2 convertPoint, convertNormal
TDF_IDFilter 8 create, release, keep, ignore, isKept, isIgnored, copy, setIgnoreAll
TDataStd_BooleanArray 3 setBooleanArray, booleanArray, hasBooleanArray
TDataStd_BooleanList 5 setBooleanList, booleanList, booleanListAppend, booleanListClear, hasBooleanList
TDataStd_ByteArray 3 setByteArray, byteArray, hasByteArray
TDataStd_IntegerList 5 setIntegerList, integerList, integerListAppend, integerListClear, hasIntegerList
TDataStd_RealList 5 setRealList, realList, realListAppend, realListClear, hasRealList
TDataStd_ExtStringArray 4 setExtStringArray, extStringArrayValue, extStringArrayLength, hasExtStringArray
TDataStd_ExtStringList 6 setExtStringList, extStringListCount, extStringListValue, extStringListAppend, extStringListClear, hasExtStringList
TDataStd_ReferenceArray 3 setReferenceArray, referenceArray, hasReferenceArray
TDataStd_ReferenceList 5 setReferenceList, referenceList, referenceListAppend, referenceListClear, hasReferenceList
TDataStd_Relation 3 setRelation, relation, hasRelation
ShapeFix_Solid 2 fixSolid, solidFromShellFixed
ShapeFix_EdgeConnect 1 fixEdgeConnect
BRepOffsetAPI_FindContigousEdges 1 findContigousEdges
TDataStd_Tick 3 setTick, hasTick, removeTick
TDataStd_Current 3 setCurrentLabel, currentLabel, hasCurrentLabel
ShapeAnalysis_Shell 1 analyzeShell (orientation, free/bad/connected edges)
ShapeAnalysis_CanonicalRecognition 2 recognizeCanonicalSurface, recognizeCanonicalCurve
Geom_Transformation 14 create, release, setTranslation, setRotation, setScale, setMirrorPoint, setMirrorAxis, scaleFactor, isNegative, apply, value, multiplied, inverted
Geom_OffsetCurve 3 offset, offsetValue, offsetDirection
Geom_RectangularTrimmedSurface 3 rectangularTrimmed, trimmedInU, trimmedInV
TNaming Extensions 9 namingIsEmpty, namingVersion, setNamingVersion, namingOriginalShape, namingHasLabel, namingFindLabel, namingValidUntil, sameShapeCount, sameShapeLabels
TDataStd_IntPackedMap 9 setIntPackedMap, intPackedMapAdd, intPackedMapRemove, intPackedMapContains, intPackedMapCount, intPackedMapClear, intPackedMapIsEmpty, intPackedMapValues, intPackedMapSetValues
TDataStd_NoteBook 4 setNoteBook, noteBookAppendReal, noteBookAppendInteger, noteBookExists
TDataStd_UAttribute 3 setUAttribute, hasUAttribute, uAttributeID
TDataStd_ChildNodeIterator 1 childNodeCount
TDF_Transaction Named 3 openNamedTransaction, commitWithDelta, transactionNumber
TDF_Delta 7 deltaIsEmpty, deltaBeginTime, deltaEndTime, deltaAttributeDeltaCount, deltaSetName, deltaGetName, deltaRelease
TDF_ComparisonTool 1 isSelfContained
TDocStd_XLinkTool 2 xlinkCopy, xlinkCopyWithLink
TFunction_IFunction 4 newFunction, deleteFunction, functionExecStatus, setFunctionExecStatus
TFunction_Scope 7 setFunctionScope, functionScopeAdd, functionScopeRemove, functionScopeHas, functionScopeRemoveAll, functionScopeCount, functionScopeFreeID
TDF_AttributeIterator 1 attributeCount
TDF_DataSet 1 dataSetIsEmpty
TDF_ChildIDIterator 1 childIDCount
TDocStd_PathParser 3 trek, name, fileExtension
TFunction_DriverTable 2 hasDriver, clear
TNaming_Scope 6 valid, validChildren, isValid, unvalid, clear, validCount
TNaming_Translator 2 translatorCopy, isSame
TDataXtd_Placement 2 setPlacement, hasPlacement
TDataXtd_Presentation 13 set, unset, has, setDisplayed, isDisplayed, setColor, getColor, setTransparency, getTransparency, setWidth, getWidth, setMode, getMode
XCAFDoc_AssemblyIterator 1 assemblyItemCount
XCAFDoc_DimTol 5 setDimTol, dimTolKind, dimTolName, dimTolDescription, dimTolValues
IntTools_Tools 5 computeVV, intermediatePoint, isDirsCoinside, isDirsCoinisdeWithTol, computeIntRange
ElCLib 8 valueOnLine, valueOnCircle, valueOnEllipse, d1OnLine, d1OnCircle, parameterOnLine, parameterOnCircle, inPeriod
ElSLib 7 valueOnPlane, valueOnCylinder, valueOnCone, valueOnSphere, valueOnTorus, parametersOnSphere, d1OnSphere
gp_Quaternion 11 create, fromAxisAngle, fromVectors, getComponents, setEulerAngles, getEulerAngles, getMatrix, rotate, multiplied, axisAngle, rotationAngle, normalize
OSD_Timer 5 start, stop, reset, elapsedTime, wallClockTime
Bnd_OBB 8 create, fromShape, isVoid, center, halfSizes, isOutPoint, isOutOBB, enlarge, squareExtent
Bnd_Range 11 create, isVoid, bounds, delta, contains, addValue, addRange, common, enlarge, trimFrom, trimTo
BRepClass3d 1 classifyPoint
TDataXtd_Constraint 9 set, setType, getType, nbGeometries, isPlanar, isDimension, setVerified, getVerified, clearGeometries
OSD_MemInfo 4 heapUsage, workingSet, heapUsageMiB, infoString
ShapeFix_EdgeProjAux 1 edgeProjAux
Geom2dAPI_Interpolate 1 interpolate2D
Geom2dAPI_PointsToBSpline 1 approximate2D
TDataXtd_PatternStd 5 setPattern, hasPattern, setSignature, getSignature, nbTrsfs
BRepAlgo_FaceRestrictor 1 faceRestrictAlgo
math_Matrix 8 create, rows, cols, getValue, setValue, determinant, invert, multiplyScalar, transpose
math_Gauss 2 solve, determinant
math_SVD 1 solve
math_DirectPolynomialRoots 1 solve
math_Jacobi 1 eigenvalues
Convert_CircleToBSplineCurve 1 fromCircleArc
Convert_SphereToBSplineSurface 1 fromSphere
OSD_Environment 3 get, set, remove
Convert_EllipseToBSplineCurve 1 fromEllipseArc
Convert_HyperbolaToBSplineCurve 1 fromHyperbolaArc
Convert_ParabolaToBSplineCurve 1 fromParabolaArc
Convert_CylinderToBSplineSurface 1 fromCylinder
Convert_ConeToBSplineSurface 1 fromCone
Convert_TorusToBSplineSurface 1 fromTorus
math_Householder 1 solve
math_Crout 2 solve, determinant
ShapeFix_IntersectionTool 1 fixIntersectingWires
XCAFDoc_AssemblyItemRef 7 setAssemblyItemRef, assemblyItemRefPath, setSubshape, getSubshape, hasExtra, clearExtra, isOrphan
BRepAlgo_Image 5 create, setRoot, bind, hasImage, isImage, clear
OSD_Path 9 name, fileExtension, trek, systemName, folderAndFile, isValid, isUnixPath, isRelative, isAbsolute
BRepClass_FClassifier 1 classifyPoint2D
BRepAlgo_Loop 1 buildLoops
Bnd_BoundSortBox 2 create, compare
BRepGProp_Domain 1 faceDomainEdgeCount
TNaming_Naming 2 insertNaming, namingIsDefined
Precision 7 confusion, angular, intersection, approximation, infinite, pConfusion, isInfinite
IntAna_IntConicQuad 2 linePlane, lineSphere
IntAna_QuadQuadGeo 2 planePlane, planeSphere
IntAna_Int3Pln 1 threePlanes
IntAna_IntLinTorus 1 lineTorus
OSD_Chronometer 2 processCPU, threadCPU
OSD_Process 4 processId, userName, executablePath, executableFolder
Draft_Modification 1 draftModification
Convert_CompBezierCurvesToBSplineCurve 1 toBSpline (composite 3D Bezier → BSpline)
Convert_CompBezierCurves2dToBSplineCurve2d 1 toBSpline2d (composite 2D Bezier → BSpline)
Geom_OffsetSurface Extensions 3 offsetValue, setOffsetValue, offsetBasis
OSD_File 13 create, createTemporary, open, openReadOnly, write, readLine, readAll, close, isOpen, fileSize, rewind, isAtEnd, release
ShapeFix_Wireframe Extensions 2 fixWireGaps, fixSmallEdges
RWStl 3 writeSTLBinary, writeSTLAscii, readSTL
ShapeAnalysis_Curve Statics 2 isClosedWithPrecision, isPeriodicSA
BRepExtrema_SelfIntersection Pairs 1 selfIntersectionPairs (face-pair overlap reporting)
Geom_OffsetCurve Basis 1 offsetBasisCurve
APIHeaderSection_MakeHeader 15 StepHeader create/release/isDone, get/set name/timeStamp/author/organization/preprocessorVersion/originatingSystem
ShapeAnalysis_FreeBounds Simplified 3 freeBoundsClosedCount, freeBoundsClosedWires, freeBoundsOpenWires
Geom_TrimmedCurve 5 trimmed, startPoint, endPoint, trimmedBasis, setTrim
BRepLib_FindSurface 3 findSurface, findSurfaceTolerance, findSurfaceExisted
ShapeAnalysis_Surface Extensions 5 projectPointUV, hasSingularitiesSA, singularityCountSA, isUClosedSA, isVClosedSA
Resource_Manager 9 create, release, setString, setInt, setReal, find, getString, getInt, getReal
TopExp Adjacency 9 edgeFirstVertex, edgeLastVertex, edgeVertices, wireVertices, commonVertex, edgeFaceAdjacency, vertexEdgeAdjacency, adjacentFaces(forEdge), adjacentEdges(forVertex)
Poly_Connect Mesh Adjacency 3 meshTriangleAdjacency, meshNodeTriangle, meshNodeTriangleCount
BRepOffset_Analyse 5 analyseEdgeConcavity, analyseExplode, analyseEdgesOnFace, analyseAncestorCount, analyseTangentEdgeCount
BRepTools_WireExplorer Extensions 2 wireEdgeOrientations, wireExplorerVertices
gce Transform Factories 3D 7 mirrorPoint, mirrorAxis, mirrorPlane, rotation, scale, translationVec, translationPoints
gce Transform Factories 2D 8 mirrorPoint2d, mirrorAxis2d, rotation2d, scale2d, translationVec2d, translationPoints2d, dir2d, dir2dFromPoints
GProp Element Properties 5 lineSegment, circularArc, pointSetCentroid, sphereSurface, sphereVolume
Plate Constraint Extensions 3 planeConstraint, lineConstraint, freeG1Constraint
Law_Interpolate 1 interpolated (BSpline from values/parameters)
Bnd_Sphere 8 create, release, radius, center, distance, isOut, isOutSphere, add
BndLib Analytic Bounding 7 line, circle, sphere, cylinder, torus, edge, face
OSD_Host 3 hostName, systemVersion, internetAddress
OSD_PerfMeter 5 create, release, start, stop, elapsed
GProp Cylinder/Cone 4 cylinderSurface, cylinderVolume, coneSurface, coneVolume
IntAna_IntQuadQuad 2 cylinderSphere, cylinderSphereIdentical
XCAFPrs_DocumentExplorer 7 nodeCount, shapeAtIndex, pathId, findShapeFromPathId, depth, isAssembly, location
GC_MakeCircle 4 circle from axis+radius, 3 points, center+normal, parallel
GC_MakeEllipse 3 ellipse from axis+radii, 3 points, full Ax2
GC_MakeHyperbola 2 hyperbola from axis+radii, 3 points
GCE2d_MakeCircle 5 2D circle: center+radius, 3 points, center+point, parallel, axis
GCE2d_MakeEllipse 3 2D ellipse: axis+radii, 3 points, Ax22d
GCE2d_MakeHyperbola 2 2D hyperbola: axis+radii, 3 points
GCE2d_MakeParabola 2 2D parabola: axis+focal, directrix+focus
GCPnts_UniformAbscissa 4 uniform arc-length points by count/distance, full/subrange
GeomConvert_CompCurveToBSpline 1 concatenate bounded 3D curves into BSpline
Geom2dConvert_CompCurveToBSpline 1 concatenate bounded 2D curves into BSpline
GeomConvert_BSplineSurfaceKnotSplitting 3 surface knot splits U/V count and values
Geom2dConvert_BSplineCurveKnotSplitting 2 2D curve knot split count and values
BndLib Extras 6 ellipse, cone, circleArc, ellipseArc, parabolaArc, hyperbolaArc bounds
GProp Torus 2 torus surface area, torus volume
BRepTools_ReShape 8 create, release, clear, remove, replace, isRecorded, apply, value
BRepTools_Substitution 2 substitute subshape, isCopied check
BRepLib_MakeVertex 1 vertex from 3D point
BRepFill_PipeShell 15 create, release, setFrenet, setDiscrete, setFixed, add, addAtVertex, setLaw, setTolerance, setTransition, build, shape, makeSolid, error, isReady
OSD_Directory 4 exists, create, buildTemporary, remove
IntAna Extensions 4 coneSphere intersection, curvePoints, isOpen, domain
Resource_Unicode 4 setFormat, getFormat, convertToUnicode, convertFromUnicode
GProp Weighted 2 weightedCentroid, barycentre
Draft Info Types 6 edgeInfoNewGeometry, faceInfoNewGeometry, vertexInfoGeometry, setTangent, faceFromSurface, vertexAddParameter
GeomLib_LogSample 1 logarithmic parameter sampling
GC_MakeConicalSurface 3 conical surface from axis/angle/radius, 2pts+radii, 4pts
GC_MakeCylindricalSurface 5 cylindrical surface from axis, 3pts, circle, parallel, axis1
GC_MakeTrimmedCone 2 trimmed cone from 2pts+radii, 4pts
GC_MakeTrimmedCylinder 3 trimmed cylinder from circle+height, axis+radius+height, 3pts
BRepLib_MakeEdge2d 5 2D edges from circle, ellipse, ellipseArc, Curve2D, Curve2D+range
ShapeAnalysis_Wire 20 wire quality: order, connected, small, degenerated, closed, selfIntersection, gaps, edgeCurves, lacking, distances, per-edge checks, outerBound
ShapeAnalysis_Edge 15 edge quality: hasCurve3d, isClosed, hasPCurve, isSeam, sameParameter, vertices, boundUV, tangent2d, overlap
OSD_DirectoryIterator 3 count, name, list directories
OSD_FileIterator 3 count, name, list files
BRepFill_PipeShell Extensions 6 maxDegree, maxSegments, forceC1, errorOnSurface, firstShape, lastShape
Shape Topology Extensions 16 orientation, reversed, complemented, composed, isFree, isModified, isChecked, isOrientable, isInfinite, isConvex, isEmpty, isPartner, isEqual, nbChildren, hashCode
Curve/Surface Continuity 4 Curve3D, Curve2D, Surface continuity, Surface nBounds
BSplineCurve 3D Manipulation 16 knotCount, poleCount, degree, isRational, getKnots, getMults, getPole, setPole, setWeight, getWeight, insertKnot, removeKnot, segment, increaseDegree, resolution, setPeriodic
BSplineSurface Manipulation 16 nbUKnots, nbVKnots, nbUPoles, nbVPoles, uDegree, vDegree, isURational, isVRational, getPole, setPole, setWeight, insertUKnot, insertVKnot, segment, increaseDegree, exchangeUV
BSplineCurve 2D Manipulation 12 knotCount, poleCount, degree, isRational, getPole, setPole, setWeight, insertKnot, removeKnot, segment, increaseDegree, resolution
BezierCurve Manipulation 10 getPole, setPole, setWeight, insertPoleAfter, removePole, segment, increaseDegree, isRational, degree, poleCount
BRepTools/BRepLib Utilities 10 clean, cleanGeometry, removeUnusedPCurves, update, checkSameRange, sameRange, buildCurve3d, updateTolerances, updateInnerTolerances, updateEdgeTolerance
MakeFace Extras 6 fromSphere, fromTorus, fromCone, fromSurfaceWire, addHole, copy
BRepBuilderAPI_Sewing Detailed 8 create, release, add, perform, result, nbFreeEdges, nbContigousEdges, nbDegeneratedShapes
Hatch_Hatcher 7 create, release, addXLine, addYLine, trim, nbLines, nbIntervals
Edge/Face Extraction 9 extractCurve3D, extractPCurve, edgeTolerance, isDegenerated, extractSurface, faceTolerance, wireCount, vertexTolerance, vertexPoint
Geom_Circle Properties 6 radius, setRadius, eccentricity, xAxis, yAxis, center
Geom_Ellipse Properties 10 majorRadius, minorRadius, setMajor/Minor, eccentricity, focal, focus1/2, parameter, directrix
Geom_Hyperbola Properties 8 majorRadius, minorRadius, setMajor/Minor, eccentricity, focal, focus1, asymptote1
Geom_Parabola Properties 6 focal, setFocal, focus, eccentricity, parameter, directrix
Geom_Line Properties 6 direction, location, setDirection, setLocation, position, lin
Geom_Plane Properties 4 coefficients, uIso, vIso, pln
Geom_SphericalSurface Properties 8 radius, setRadius, area, volume, center, uIso, vIso, sphere
Geom_ToroidalSurface Properties 6 majorRadius, minorRadius, setMajor/Minor, area, volume
Geom_CylindricalSurface Properties 4 radius, setRadius, axis, uIso
Geom_ConicalSurface Properties 4 semiAngle, refRadius, apex, axis
Geom_SweptSurface Properties 2 direction, basisCurve
Geom2d_Circle Properties 5 radius, setRadius, eccentricity, center, xAxis
Geom2d_Ellipse Properties 7 majorRadius, minorRadius, setMajor/Minor, eccentricity, focal, focus1
Geom2d_Hyperbola Properties 5 majorRadius, minorRadius, eccentricity, focal, focus1
Geom2d_Parabola Properties 5 focal, setFocal, focus, eccentricity, parameter
Geom2d_Line Properties 6 direction, location, setDirection, setLocation, distance, lin2d
Geom2d_OffsetCurve Properties 3 offset, setOffset, basisCurve
Extrema_ExtElC 4 lineToLine, lineToCircle, circleToCircle, lineToEllipse
Extrema_ExtElCS 3 lineToPlane, lineToSphere, lineToCylinder
Extrema_ExtElSS 3 planeToPlane, planeToSphere, sphereToSphere
Extrema_ExtPElC 4 pointToLine, pointToCircle, pointToEllipse, pointToParabola
Extrema_ExtPElS 5 pointToPlane, pointToSphere, pointToCylinder, pointToCone, pointToTorus
math_TrigonometricFunctionRoots 2 solve, hasInfiniteRoots
IntAna2d_Conic 4 fromCircle, fromLine, fromEllipse, lineCircleIntersection
BRepAlgo_NormalProjection 5 create, release, add, build, result
OSD_Disk 4 size, freeSpace, isValid, name
OSD_SharedLibrary 5 create, release, open, close, name
Message_Msg 4 message(forKey:), loadFile, loadDefault, hasMessage
Plate Constraint Extensions (v2) 2 globalTranslation, linearXYZ
Shape Topology Counting 3 faceCount, edgeCount, shapeTypeString
Curve3D Extras 3 reverse, copy, continuity
Curve2D Extras 3 reverse, copy, continuity
Surface Extras 3 parameterBounds, surfaceContinuityOrder, copy
Math Solvers 7 findRoot, findRootBounded, findRootBisection, solveSystem, minimize (BFGS), minimizePowell, minimizeBrent
Curve3D Evaluation 6 evalD0, evalD1, evalD2, evalD3, evalBatchD0, evalBatchD1
Curve2D Evaluation 5 evalD0, evalD1, evalD2, evalBatchD0, evalBatchD1
Surface Evaluation 3 evalD0, evalD1, evalD2
RWMesh_FaceIterator 10 create, release, more, next, nbNodes, nbTriangles, node, hasNormals, normal, triangle
RWMesh_VertexIterator 5 create, release, more, next, point
Intf_Tool 5 create, release, linBox, beginParam, endParam
BRepAlgo_AsDes 5 create, release, add, hasDescendant, descendantCount
BiTgte_CurveOnEdge 4 create, release, domain, value
Shape Location/Orientation 9 child, isLocked, setLocked, located, getLocation, setLocation, oriented, compounded, empty
Wire/Face Construction 8 wireFromEdges, makeCompound, makeShell, isCompound, isSolid, isShell, isFace, isEdge
BRepCheck Extended 8 checkFaceStatus, checkEdgeStatus, checkVertexStatus, maxTolerance, minTolerance, avgTolerance, fixTolerance, limitMaxTolerance
Curve3D/2D Type & Projection 5 curveType (3D), parameterAtPoint (3D), curveType (2D), parameterAtPoint (2D), surfaceGetType
Extrema Extras 4 locateOnCurve, locateOnSurface, pointCurve, pointSurface
MakeEdge Completions 12 edgeFromEllipse, edgeFromEllipseArc, edgeFromHyperbolaArc, edgeFromParabolaArc, edgeFromCurve, edgeFromCurveParams, edgeFromCurvePoints, edgeOnSurface, edgeOnSurfaceParams, edgeVertex1, edgeVertex2, edgeError
ProjectionOnCurve 8 create, release, nbPoints, point, parameter, distance, lowerDistance, lowerParam
ProjectionOnSurface 8 create, release, nbPoints, point, parameters, distance, lowerDistance, lowerParams
ShapeDistance (DistShapeShape) 12 create, release, isDone, value, nbSolution, pointOnShape1, pointOnShape2, supportType1, supportType2, supportShape1, supportShape2
WireFixer 12 create, release, fixReorder, fixConnected, fixSmall, fixDegenerated, fixSelfIntersection, fixLacking, fixClosed, fixGaps3d, fixEdgeCurves, wire
FaceFixer 8 create, release, perform, fixOrientation, fixAddNaturalBound, fixMissingSeam, fixSmallAreaWire, face
MakeFace Completions 3 fromSurfaceUV, fromGpPlane, fromGpCylinder
IntCS Full Results 6 create, release, nbPoints, point (with params), nbSegments
BSplineCurve Mutations 8 setKnot, getKnotSequence, getWeights, insertKnots, movePoint, localValue, maxDegree, locateU
BSplineSurface Mutations 6 setUKnot, setVKnot, getUKnots, getVKnots, getWeights, removeUKnot
HelixGeom (rc4) 7 helixBuild, helixCoilBuild, helixCurveEval, helixCurveD1, helixCurveD2, helixApproxToBSpline
CoordinateSystem3D (gp_Ax3) 7 create, createFromNormal, angle, isCoplanar, mirror, rotate, translate
GeneralTransform2D (gp_GTrsf2d) 4 affinity, multiply, invert, transformPoint
Matrix2D (gp_Mat2d) 7 identity, rotation, scale, determinant, invert, multiply, transpose
Quaternion Interpolation 3 slerp, nlerp, transformInterpolate
Vector2D/3D Math (gp_XY/XYZ) 9 modulus, cross, dot, normalize (2D), modulus, cross, dot, dotCross, normalize (3D)
Math Solvers Part 2 13 bracketedRoot, bracketMinimum, frpr, functionAllRoots, gaussLeastSquare, newtonFunctionRoot, uzawa, eigenvalues, eigenvaluesAndVectors, kronrodIntegrate, kronrodIntegrateAdaptive, gaussMultipleIntegration, gaussSetIntegration
MathPoly rc4 4 linearRoots, quadraticRoots, cubicRoots, quarticRoots
MathInteg rc4 5 integGauss, integGaussAdaptive, integKronrod, integKronrodAdaptive, integTanhSinh
UnitsMethods 3 lengthFactor, lengthUnitScale, dumpLengthUnit
LProp3d Curve 4 localCurvature, localTangent, localNormal, localCentreOfCurvature
LProp3d Surface 2 localCurvatures, localCurvatureDirections
ProjLib Projectors 3 projectLineOnPlane, projectLineOnCylinder, projectCircleOnPlane
BRepBndLib 3 boundingBox, boundingBoxOptimal, orientedBoundingBoxDetailed
ShapeAnalysis Tolerance 3 toleranceValue, toleranceOverCount, toleranceInRangeCount
Boolean Validation 2 isBooleanValid, isBooleanValidWith
Defeaturing 1 defeature(faces:)
Polynomial Conversion 1 polynomialToPoles
Transform Extras 4 transformed(byMatrix:), isTransformNegative, displacement, transformation
TopExp Extras 1 commonVertex
BRep_Tool Extras 5 edgeSameParameter, edgeSameRange, faceNaturalRestriction, edgeIsGeometric, faceIsGeometric
Sewing Extras 2 multipleEdgeCount, multipleEdge(at:)
BREP Serialization 2 toBREPString, fromBREPString
Plane Geometry 3 PlaneGeometry.distanceToPoint, distanceToLine, containsPoint
Line Geometry 3 LineGeometry.distanceToPoint, distanceToLine, containsPoint
Bezier Surface 11 bezierProperties (nbUPoles, nbVPoles, uDegree, vDegree, pole, setPole, setWeight, segment, isURational, isVRational, exchangeUV)
Curve2D Bezier 7 bezierProperties (degree, poleCount, isRational, pole, setPole, setWeight, resolution)
Curve2D BSpline Extras 3 bsplineSetPeriodic, bsplineWeight, bsplineWeights
BSplineSurface Extras 4 bsplineResolution, bsplineSetUPeriodic, bsplineSetVPeriodic, bsplineWeight
Final Cleanup 25 IsCN (curve3D/curve2D/surfaceU/V), ReversedParameter (curve3D/2D), ParametricTransformation, continuityOrder (curve3D/2D), surface UReversed/VReversed/UReversedParam/VReversedParam, RemoveVKnot, vecCrossMagnitude/CrossSquareMagnitude, dirIsOpposite/IsNormal, BezierResolution (curve3D/surface), MaxDegree (bezierCurve3D/2D/surface, bsplineSurface/curve2D)
GLTF Import/Export 5 importGLTF, exportGLTF (GLB/GLTF), documentLoadGLTF, documentWriteGLTF
FilletBuilder 16 create, addEdge, addEdgeEvolving, build, nbContours, nbEdges, hasResult, badShape, faultyContours, faultyVertices, getRadius, getLength, isConstant, removeEdge, reset
ChamferBuilder 8 create, addEdge, addEdgeTwoDists, addEdgeDistAngle, build, nbContours, isDistAngle
BSpline Completions 25 Surface: SetU/VNotPeriodic, SetU/VOrigin, IncreaseU/VMultiplicity, InsertU/VKnots, MovePoint, SetPoleCol/Row. Curve3D/2D: SetNotPeriodic, SetOrigin, IncreaseMultiplicity, IncrementMultiplicity, SetKnots, Reverse, MovePointAndTangent
v0.122.0 Additions 44 WireFixer: fixGaps2d, fixSeam, fixShifted, fixNotchedEdges, fixTails, setMaxTailAngle, setMaxTailWidth. ShapeFix_Edge: addCurve3d, addPCurve, removeCurve3d, removePCurve, fixReversed2d. BRepTools: cleanTriangulation, removeInternals, detectClosedness, evalAndUpdateTol, map3DEdgeCount, updateFaceUVPoints, compareVertices, compareEdges, isReallyClosed, updateTopology. BRepLib: ensureNormalConsistency, updateDeflection, continuityOfFaces, buildCurves3dAll, sameParameterAll. History: merge, replaceGenerated, replaceModified, getModifiedShapes, getGeneratedShapes. Sewing: nbDeletedFaces, deletedFace, isModified, modified, isDegenerated, isSectionBound, whichFace, load, setNonManifoldMode, setFaceMode, setFloatingEdgesMode, setMinTolerance, setMaxTolerance
v0.123.0 Additions 37 ThruSections: checkCompatibility, setParType, setCriteriumWeight, generatedFace. CellsBuilder: addToResult(selective), removeFromResult, allParts, makeContainers. PipeShell: getStatus, simulate. UnifySameDomainBuilder: create, allowInternalEdges, keepShape, setSafeInputMode, setLinearTolerance, setAngularTolerance, build, shape. Section: sectionWithOptions, ancestorFaceOn1, ancestorFaceOn2. Curve3D: period, firstParameter, lastParameter. Surface: uPeriod, vPeriod. Shape: nullified, typeName, isNotEqual, emptied, moved, orientationValue, nbEdges, nbFaces, nbVertices
v0.124.0 Additions 54 ChamferBuilder: nbEdges, getDist, getDists, getDistAngle, setDist, setDists, setDistAngle, length, removeEdge, reset, closed, closedAndTangent, isSymmetric, isTwoDists, edge, firstVertex, lastVertex, contour, abscissa, relativeAbscissa. FilletBuilder: setRadiusOnEdge, setRadiusAtVertex, setTwoRadii, contour, edge, firstVertex, lastVertex, abscissa, relativeAbscissa, closedAndTangent, closed, nbSurfaces, nbComputedSurfaces, stripeStatus, faultyContour, faultyVertex. WireAnalyzer: create, release, perform, checkOrder, checkConnected, checkSmall, checkDegenerated, checkGap3d, checkGap2d, checkSeam, checkLacking, checkSelfIntersection, checkClosed, minDistance3d, maxDistance3d, nbEdges, isLoaded, isReady
v0.125.0 Additions 56 BSplineSurface: LocalD0/D1/D2/D3/DN/Value, UIso, VIso, LocateU/V, UKnot/VKnot, UMultiplicity/VMultiplicity, UKnotDistribution/VKnotDistribution, GetPoles, Bounds, IsUClosed/IsVClosed. Curve2D BSpline: LocalD0/D1/D2/D3/DN/Value, LocateU, FirstUKnotIndex/LastUKnotIndex, Knot, KnotDistribution, Multiplicity, GetMultiplicities, StartPoint/EndPoint, GetPoles, IsClosed/IsPeriodic, Continuity, IsCN. BezierCurve3D: StartPoint/EndPoint, GetPoles, GetWeights, IsClosed/IsPeriodic, Continuity, IsCN. BezierSurface: UIso/VIso, IsUClosed/IsVClosed, IsUPeriodic/IsVPeriodic, Continuity, IsCNu/IsCNv, GetPoles, GetWeights, Bounds
v0.126.0 Additions 62 BRep_Tool: CurveOnSurface, HasContinuity, Continuity, HasAnyContinuity, MaxContinuity, Degenerated, NaturalRestriction, RangeOnFace, ParameterOnFace, ParametersOnFace, UVPoints, MaxTolerance. XCAFDoc_ColorTool: AddColor, RemoveColor, GetColorCount, UnSetColor, IsVisible, SetVisibility, IsColorByLayer, SetColorByLayer, FindColor, SetInstanceColor, GetInstanceColor. Geom2d_BezierCurve: InsertPoleAfter, RemovePole, Segment, IncreaseDegree, StartPoint, EndPoint, GetPoles, Reverse. BSplineSurface: GetUMultiplicities, GetVMultiplicities, UReverse, VReverse, PeriodicNormalization. BezierSurface: InsertPoleColAfter, InsertPoleRowAfter, RemovePoleCol, RemovePoleRow, IncreaseDegree, UReverse, VReverse, NbUPoles, NbVPoles, UDegree, VDegree. FilletBuilder: SetParams, SetContinuity, SetFilletShape, GetFilletShape, ResetContour, Simulate, NbSimulatedSurf. XCAFDoc_ShapeTool: IsFree, IsSimpleShape, IsComponent, IsCompound, IsSubShape, IsExternRef, GetUsers, ComputeShapes, NbComponents. Bezier3D: InsertPoleBefore, Reverse, SetPoleWithWeight
v0.127.0 Additions 16 BRepAlgoAPI_Section: sectionWithPlane, sectionWithSurface. BSplineCurve: PeriodicNormalization, IsG1. BRep_Tool: CurveOnPlane, Polygon3D, PolygonOnTriangulation. BezierSurface: SetPoleColWeights, SetPoleRowWeights. ColorTool: GetAllColors. FilletBuilder: GetBounds, GetLaw, SetLaw, Generated, Modified, IsDeleted
v0.128.0 Additions 40 ChamferBuilder: Generated, Modified, IsDeleted, SetMode, Simulate, NbSurf. SectionBuilder: full builder pattern (Create, Init1/Init2 shape/plane/surface, Approximation, ComputePCurveOn1/2, Build, AncestorFaceOn1/2). BRep_Tool: IsClosedOnFace, PolygonOnSurface, SetUVPoints. Curve3D Transform: translate, rotate, scale, mirrorPoint, mirrorAxis, mirrorPlane. Curve2D Transform: translate, rotate, scale, mirrorPoint, mirrorAxis. Surface Transform: translate, rotate, scale, mirrorPoint, mirrorAxis, mirrorPlane
v0.129.0 Additions 20 BSplineCurve3D: LocalD0/D1/D2/D3/DN on knot span. BSplineSurface: SetWeightCol/Row, IncrementUMultiplicity/IncrementVMultiplicity (range), FirstU/LastU/FirstV/LastVKnotIndex, CheckAndSegment. BezierSurface: InsertPoleColBefore/RowBefore, SetPoleCol/Row (no weights), SetWeightCol/Row
v0.130.0 Additions 33 GeomEval 3D curves: CircularHelix D0/D1/D2/Create, SineWave D0/D1/Create. GeomEval surfaces: Ellipsoid D0/Create, Hyperboloid D0/Create, Paraboloid D0/Create, CircularHelicoid D0/Create, HypParaboloid D0/Create. Geom2dEval: ArchimedeanSpiral D0/D1, LogSpiral D0/D1, CircleInvolute D0/D1, SineWave2D D0/D1. GeomFill_Gordon surface. PointSetLib: Props/Inertia/Barycentre/Equation. ExtremaPC: Curve/CurveBounded/MinDistance
Approx_BSplineApproxInterp 13 create, interpolatePoint, perform, performOptimal, isDone, curve, maxError, setAlpha, setMinPivot, setClosedTol, setKnotTol, setConvergenceTol, setProjectionTol
GeomAdaptor_TransformedCurve 1 translated (curve with translation)
GeomEval TBezier/AHTBezier Curves 4 tBezier (3D), tBezierRational (3D), ahtBezier (3D), ahtBezierRational (3D)
GeomEval TBezier/AHTBezier Surfaces 2 tBezier surface, ahtBezier surface
Geom2dEval TBezier/AHTBezier 2 tBezier (2D), ahtBezier (2D)
Total 3408  

Note: OCCTSwift wraps a curated subset of OCCT. To add new functions, see docs/EXTENDING.md.

API Reference

Currently Wrapped OCCT Functions

OCCTSwift wraps a subset of OCCT’s functionality. The bridge layer (OCCTBridge) exposes these specific operations:

Shape Creation (Primitives)

| Swift API | OCCT Class | |———–|————| | Shape.box() | BRepPrimAPI_MakeBox | | Shape.cylinder() | BRepPrimAPI_MakeCylinder | | Shape.sphere() | BRepPrimAPI_MakeSphere | | Shape.cone() | BRepPrimAPI_MakeCone | | Shape.torus() | BRepPrimAPI_MakeTorus |

Sweep Operations

| Swift API | OCCT Class | |———–|————| | Shape.sweep(profile:along:) | BRepOffsetAPI_MakePipe | | Shape.extrude(profile:direction:length:) | BRepPrimAPI_MakePrism | | Shape.revolve(profile:axisOrigin:axisDirection:angle:) | BRepPrimAPI_MakeRevol | | Shape.loft(profiles:solid:) | BRepOffsetAPI_ThruSections |

Boolean Operations

| Swift API | OCCT Class | |———–|————| | shape1 + shape2 / shape1.union(with:) | BRepAlgoAPI_Fuse | | shape1 - shape2 / shape1.subtracting(_:) | BRepAlgoAPI_Cut | | shape1 & shape2 / shape1.intersection(with:) | BRepAlgoAPI_Common |

Modifications

| Swift API | OCCT Class | |———–|————| | shape.filleted(radius:) | BRepFilletAPI_MakeFillet | | shape.chamfered(distance:) | BRepFilletAPI_MakeChamfer | | shape.shelled(thickness:) | BRepOffsetAPI_MakeThickSolid | | shape.offset(by:) | BRepOffsetAPI_MakeOffsetShape |

Transformations

| Swift API | OCCT Class | |———–|————| | shape.translated(by:) | BRepBuilderAPI_Transform + gp_Trsf | | shape.rotated(axis:angle:) | BRepBuilderAPI_Transform + gp_Trsf | | shape.scaled(by:) | BRepBuilderAPI_Transform + gp_Trsf | | shape.mirrored(planeNormal:planeOrigin:) | BRepBuilderAPI_Transform + gp_Trsf |

Wire/Curve Creation

| Swift API | OCCT Class | |———–|————| | Wire.rectangle() | BRepBuilderAPI_MakeWire + GC_MakeSegment | | Wire.circle() | BRepBuilderAPI_MakeEdge + gp_Circ | | Wire.polygon(_:closed:) | BRepBuilderAPI_MakeWire + edges | | Wire.line(from:to:) | BRepBuilderAPI_MakeEdge + GC_MakeSegment | | Wire.arc(center:radius:...) | BRepBuilderAPI_MakeEdge + GC_MakeArcOfCircle | | Wire.bspline(_:) | BRepBuilderAPI_MakeEdge + Geom_BSplineCurve | | Wire.join(_:) | BRepBuilderAPI_MakeWire |

2D Parametric Curves

| Swift API | OCCT Class | |———–|————| | Curve2D.segment(from:to:) | GCE2d_MakeSegment | | Curve2D.circle(center:radius:) | Geom2d_Circle | | Curve2D.ellipse(...) | GCE2d_MakeEllipse | | Curve2D.bspline(...) | Geom2d_BSplineCurve | | Curve2D.interpolate(through:) | Geom2dAPI_Interpolate | | curve.curvature(at:) | Geom2dLProp_CLProps2d | | curve.intersections(with:) | Geom2dAPI_InterCurveCurve | | curve.drawAdaptive() | GCPnts_TangentialDeflection | | Curve2DGcc.circlesTangentWithCenter(...) | Geom2dGcc_Circ2dTanCen | | Curve2DGcc.hatch(boundaries:...) | Geom2dHatch_Hatcher |

3D Parametric Curves (v0.19.0)

| Swift API | OCCT Class | |———–|————| | Curve3D.line(through:direction:) | Geom_Line | | Curve3D.segment(from:to:) | GC_MakeSegment | | Curve3D.circle(center:normal:radius:) | Geom_Circle | | Curve3D.arcOfCircle(start:interior:end:) | GC_MakeArcOfCircle | | Curve3D.ellipse(...) | Geom_Ellipse | | Curve3D.bspline(...) | Geom_BSplineCurve | | Curve3D.interpolate(points:...) | GeomAPI_Interpolate | | curve.drawAdaptive() | GCPnts_TangentialDeflection | | curve.curvature(at:) | GeomLProp_CLProps | | Curve3D.join(_:) | GeomConvert::ConcatG1 |

Parametric Surfaces (v0.20.0)

| Swift API | OCCT Class | |———–|————| | Surface.plane(origin:normal:) | Geom_Plane | | Surface.cylinder(origin:axis:radius:) | Geom_CylindricalSurface | | Surface.sphere(center:radius:) | Geom_SphericalSurface | | Surface.bspline(...) | Geom_BSplineSurface | | Surface.extrusion(profile:direction:) | Geom_SurfaceOfLinearExtrusion | | Surface.revolution(...) | Geom_SurfaceOfRevolution | | Surface.pipe(path:radius:) | GeomFill_Pipe | | surface.uIso(at:) / surface.vIso(at:) | Geom_Surface::UIso/VIso | | surface.drawGrid(...) / surface.drawMesh(...) | Grid/mesh discretization | | surface.gaussianCurvature(atU:v:) | GeomLProp_SLProps |

Face Surface Analysis (v0.18.0)

| Swift API | OCCT Class | |———–|————| | face.uvBounds | BRepTools::UVBounds | | face.point(atU:v:) / face.normal(atU:v:) | GeomLProp_SLProps | | face.gaussianCurvature(atU:v:) / face.meanCurvature(atU:v:) | GeomLProp_SLProps | | face.principalCurvatures(atU:v:) | GeomLProp_SLProps | | face.surfaceType / face.area(tolerance:) | GeomAdaptor_Surface / BRepGProp | | face.project(point:) / face.allProjections(of:) | GeomAPI_ProjectPointOnSurf | | face.intersection(with:tolerance:) | BRepAlgoAPI_Section |

Edge Curve Analysis (v0.18.0)

| Swift API | OCCT Class | |———–|————| | edge.parameterBounds / edge.curveType | BRep_Tool / GeomAdaptor_Curve | | edge.point(at:) / edge.tangent(at:) / edge.normal(at:) | GeomLProp_CLProps | | edge.curvature(at:) / edge.centerOfCurvature(at:) / edge.torsion(at:) | GeomLProp_CLProps | | edge.project(point:) | GeomAPI_ProjectPointOnCurve |

Shape Proximity (v0.18.0)

| Swift API | OCCT Class | |———–|————| | shape.proximityFaces(with:tolerance:) | BRepExtrema_ShapeProximity | | shape.selfIntersects | BOPAlgo_CheckerSI |

Law Functions (v0.21.0)

| Swift API | OCCT Class | |———–|————| | LawFunction.constant(_:from:to:) | Law_Constant | | LawFunction.linear(from:to:parameterRange:) | Law_Linear | | LawFunction.sCurve(from:to:parameterRange:) | Law_S | | LawFunction.interpolate(points:periodic:) | Law_Interpol | | LawFunction.bspline(...) | Law_BSpline | | Shape.pipeShellWithLaw(spine:profile:law:solid:) | BRepOffsetAPI_MakePipeShell |

Curve Projection (v0.22.0)

| Swift API | OCCT Class | |———–|————| | surface.projectCurve(_:tolerance:) → Curve2D? | GeomProjLib::Curve2d | | surface.projectCurveSegments(_:tolerance:) → [Curve2D] | ProjLib_CompProjectedCurve | | surface.projectCurve3D(_:) → Curve3D? | GeomProjLib::Project | | surface.projectPoint(_:) → SurfaceProjection? | GeomAPI_ProjectPointOnSurf | | curve.projectedOnPlane(origin:normal:direction:) → Curve3D? | GeomProjLib::ProjectOnPlane |

XDE GD&T (v0.21.0)

| Swift API | OCCT Class | |———–|————| | document.dimensionCount / document.dimension(at:) | XCAFDimTolObjects_DimensionObject | | document.geomToleranceCount / document.geomTolerance(at:) | XCAFDimTolObjects_GeomToleranceObject | | document.datumCount / document.datum(at:) | XCAFDimTolObjects_DatumObject |

Topological Naming (v0.25.0)

| Swift API | OCCT Class | |———–|————| | document.createLabel(parent:) | TDF_TagSource::NewTag | | document.recordNaming(on:evolution:oldShape:newShape:) | TNaming_Builder | | document.currentShape(on:) | TNaming_Tool::CurrentShape | | document.storedShape(on:) | TNaming_Tool::GetShape | | document.namingEvolution(on:) | TNaming_NamedShape::Evolution | | document.namingHistory(on:) | TNaming_Iterator | | document.tracedForward(from:scope:) | TNaming_NewShapeIterator | | document.tracedBackward(from:scope:) | TNaming_OldShapeIterator | | document.selectShape(_:context:on:) | TNaming_Selector::Select | | document.resolveShape(on:) | TNaming_Selector::Solve |

Annotations & Measurements (v0.26.0)

| Swift API | OCCT Class | |———–|————| | LengthDimension(from:to:) | PrsDim_LengthDimension | | LengthDimension(edge:) | PrsDim_LengthDimension | | LengthDimension(face1:face2:) | PrsDim_LengthDimension | | RadiusDimension(shape:) | PrsDim_RadiusDimension | | AngleDimension(edge1:edge2:) | PrsDim_AngleDimension | | AngleDimension(first:vertex:second:) | PrsDim_AngleDimension | | AngleDimension(face1:face2:) | PrsDim_AngleDimension | | DiameterDimension(shape:) | PrsDim_DiameterDimension | | TextLabel(text:position:) | AIS_TextLabel | | PointCloud(points:) / PointCloud(points:colors:) | AIS_PointCloud | | dimension.geometry → DimensionGeometry | Extracted line segments + text position for Metal |

Import

| Swift API | OCCT Class | |———–|————| | Shape.load(from:) | STEPControl_Reader | | Shape.loadRobust(from:) | STEPControl_Reader + ShapeFix_* | | Shape.loadIGES(from:) | IGESControl_Reader | | Shape.loadIGESRobust(from:) | IGESControl_Reader + ShapeFix_* | | Shape.loadBREP(from:) | BRepTools::Read | | Shape.loadSTL(from:) | StlAPI_Reader | | Shape.loadSTLRobust(from:) | StlAPI_Reader + BRepBuilderAPI_Sewing + ShapeFix_Shape | | Shape.loadOBJ(from:) | RWObj_CafReader |

Geometry Construction

| Swift API | OCCT Class | |———–|————| | Shape.face(from:) | BRepBuilderAPI_MakeFace | | Shape.face(outer:holes:) | BRepBuilderAPI_MakeFace | | Shape.solid(from:) | BRepBuilderAPI_MakeSolid | | Shape.sew(shapes:tolerance:) | BRepBuilderAPI_Sewing | | Wire.interpolate(through:) | GeomAPI_Interpolate |

Bounds

| Swift API | OCCT Class | |———–|————| | shape.bounds | Bnd_Box, BRepBndLib | | shape.size | (computed from bounds) | | shape.center | (computed from bounds) |

Slicing & Contours

| Swift API | OCCT Class | |———–|————| | shape.sliceAtZ(_:) | BRepAlgoAPI_Section, gp_Pln | | shape.edgeCount | TopExp_Explorer | | shape.edgePoints(at:maxPoints:) | BRep_Tool::Curve, Geom_Curve | | shape.contourPoints(maxPoints:) | TopExp::Vertices, BRep_Tool::Pnt |

CAM Operations

| Swift API | OCCT Class | |———–|————| | Shape.cylinder(at:bottomZ:radius:height:) | BRepPrimAPI_MakeCylinder, gp_Ax2 | | Shape.toolSweep(radius:height:from:to:) | BRepPrimAPI_MakeCylinder, BRepAlgoAPI_Fuse, BRepPrimAPI_MakePrism |

Meshing & Export

| Swift API | OCCT Class | |———–|————| | shape.mesh(linearDeflection:angularDeflection:) | BRepMesh_IncrementalMesh | | shape.writeSTL(to:deflection:) | StlAPI_Writer | | shape.writeSTEP(to:) | STEPControl_Writer | | shape.writeIGES(to:) | IGESControl_Writer | | shape.writeBREP(to:) | BRepTools::Write | | shape.writeOBJ(to:deflection:) | RWObj_CafWriter | | shape.writePLY(to:deflection:) | RWPly_CafWriter | | Exporter.optimizeSTEP(input:output:) | StepTidy_DuplicateCleaner |

Helix Curves

| Swift API | OCCT Class | |———–|————| | Wire.helix(radius:pitch:turns:) | HelixBRep_BuilderHelix | | Wire.helixTapered(startRadius:endRadius:pitch:turns:) | HelixBRep_BuilderHelix |

KD-Tree Spatial Queries

| Swift API | OCCT Class | |———–|————| | KDTree(points:) | NCollection_KDTree<gp_Pnt, 3> | | tree.nearest(to:) | NCollection_KDTree::NearestPoint | | tree.kNearest(to:k:) | NCollection_KDTree::KNearestPoints | | tree.rangeSearch(center:radius:) | NCollection_KDTree::RangeSearch | | tree.boxSearch(min:max:) | NCollection_KDTree::BoxSearch |

Batch Curve/Surface Evaluation

| Swift API | OCCT Class | |———–|————| | curve2d.evaluateGrid(_:) | Geom2dGridEval_Curve::EvaluateGrid | | curve2d.evaluateGridD1(_:) | Geom2dGridEval_Curve::EvaluateGridD1 | | curve3d.evaluateGrid(_:) | GeomGridEval_Curve::EvaluateGrid | | curve3d.evaluateGridD1(_:) | GeomGridEval_Curve::EvaluateGridD1 | | surface.evaluateGrid(uParameters:vParameters:) | GeomGridEval_Surface::EvaluateGrid |

Wedge & Half-Space Primitives (v0.29.0)

| Swift API | OCCT Class | |———–|————| | Shape.wedge(dx:dy:dz:ltx:) | BRepPrimAPI_MakeWedge | | Shape.wedge(dx:dy:dz:xmin:zmin:xmax:zmax:) | BRepPrimAPI_MakeWedge | | Shape.halfSpace(face:referencePoint:) | BRepPrimAPI_MakeHalfSpace |

Shape Conversion & Sewing (v0.29.0)

| Swift API | OCCT Class | |———–|————| | shape.convertedToNURBS() | BRepBuilderAPI_NurbsConvert | | shape.fastSewn(tolerance:) | BRepBuilderAPI_FastSewing | | shape.normalProjection(of:) | BRepOffsetAPI_NormalProjection | | shape.draft(direction:angle:length:) | BRepOffsetAPI_MakeDraft |

Shape Editing (v0.29.0)

| Swift API | OCCT Class | |———–|————| | shape.replacingSubShape(_:with:) | BRepTools_ReShape | | shape.removingSubShape(_:) | BRepTools_ReShape | | shape.makePeriodic(xPeriod:yPeriod:zPeriod:) | BOPAlgo_MakePeriodic | | shape.repeated(...) | BOPAlgo_MakePeriodic |

Wire Explorer (v0.29.0)

| Swift API | OCCT Class | |———–|————| | wire.orderedEdgeCount | BRepTools_WireExplorer | | wire.orderedEdgePoints(at:maxPoints:) | BRepTools_WireExplorer + BRepAdaptor_Curve |

Curve Planarity (v0.29.0)

| Swift API | OCCT Class | |———–|————| | curve3d.planeNormal(tolerance:) | ShapeAnalysis_Curve::IsPlanar |

Polynomial Solver (v0.29.0)

| Swift API | OCCT Class | |———–|————| | PolynomialSolver.quadratic(a:b:c:) | math_DirectPolynomialRoots | | PolynomialSolver.cubic(a:b:c:d:) | math_DirectPolynomialRoots | | PolynomialSolver.quartic(a:b:c:d:e:) | math_DirectPolynomialRoots |

Hatch Pattern (v0.29.0)

| Swift API | OCCT Class | |———–|————| | HatchPattern.generate(boundary:direction:spacing:) | Hatch_Hatcher |

Non-Uniform Scale (v0.30.0)

| Swift API | OCCT Class | |———–|————| | shape.nonUniformScaled(sx:sy:sz:) | BRepBuilderAPI_GTransform |

Shell & Vertex Creation (v0.30.0)

| Swift API | OCCT Class | |———–|————| | Shape.shell(from:) | BRepBuilderAPI_MakeShell | | Shape.vertex(at:) | BRepBuilderAPI_MakeVertex |

Simple Offset & Middle Path (v0.30.0)

| Swift API | OCCT Class | |———–|————| | shape.simpleOffset(by:) | BRepOffset_MakeSimpleOffset | | shape.middlePath(start:end:) | BRepOffsetAPI_MiddlePath |

Edge Fusion & Volume (v0.30.0)

| Swift API | OCCT Class | |———–|————| | shape.fusedEdges() | BRepLib_FuseEdges | | Shape.makeVolume(from:) | BOPAlgo_MakerVolume | | Shape.makeConnected(_:) | BOPAlgo_MakeConnected |

Curve-Curve & Curve-Surface (v0.30.0)

| Swift API | OCCT Class | |———–|————| | curve.minDistance(to: otherCurve) | GeomAPI_ExtremaCurveCurve | | curve.extrema(with:) | GeomAPI_ExtremaCurveCurve | | curve.intersections(with: surface) | GeomAPI_IntCS | | curve.minDistance(to: surface) | GeomAPI_ExtremaCurveSurface | | surface.intersections(with: otherSurface) | GeomAPI_IntSS |

Analytical Recognition (v0.30.0)

| Swift API | OCCT Class | |———–|————| | curve.toAnalytical(tolerance:) | GeomConvert_CurveToAnaCurve | | surface.toAnalytical(tolerance:) | GeomConvert_SurfToAnaSurf | | shape.recognizeCanonical(tolerance:) | ShapeAnalysis_CanonicalRecognition |

Shape Census & Edge Analysis (v0.30.0)

| Swift API | OCCT Class | |———–|————| | shape.contents | ShapeAnalysis_ShapeContents | | edge.hasCurve3D / edge.isClosed3D | ShapeAnalysis_Edge | | edge.isSeam(on:) | ShapeAnalysis_Edge | | shape.findSurface(tolerance:) | BRepLib_FindSurface |

Healing & Diagnostics (v0.30.0)

| Swift API | OCCT Class | |———–|————| | shape.fixedWireframe(tolerance:) | ShapeFix_Wireframe | | shape.removingInternalWires(minArea:) | ShapeUpgrade_RemoveInternalWires | | shape.contiguousEdgeCount(tolerance:) | BRepOffsetAPI_FindContigousEdges |

Document Units (v0.30.0)

| Swift API | OCCT Class | |———–|————| | document.lengthUnit | XCAFDoc_LengthUnit |

Quasi-Uniform Curve Sampling (v0.31.0)

| Swift API | OCCT Class | |———–|————| | curve.quasiUniformParameters(count:) | GCPnts_QuasiUniformAbscissa | | curve.quasiUniformDeflectionPoints(deflection:) | GCPnts_QuasiUniformDeflection |

Bezier Surface Fill (v0.31.0)

| Swift API | OCCT Class | |———–|————| | Surface.bezierFill(_:_:_:_:style:) | GeomFill_BezierCurves | | Surface.bezierFill(_:_:style:) | GeomFill_BezierCurves |

Shape Healing (v0.31.0)

| Swift API | OCCT Class | |———–|————| | Shape.quilt(_:) | BRepTools_Quilt | | shape.fixingSmallFaces(tolerance:) | ShapeFix_FixSmallFace | | shape.removingLocations() | ShapeUpgrade_RemoveLocations |

Revolution from Curve (v0.31.0)

| Swift API | OCCT Class | |———–|————| | Shape.revolution(meridian:axisOrigin:axisDirection:angle:) | BRepPrimAPI_MakeRevolution |

Document Layers & Materials (v0.31.0)

| Swift API | OCCT Class | |———–|————| | document.layerCount / layerName(at:) / layerNames | XCAFDoc_LayerTool | | document.materialCount / materialInfo(at:) / materials | XCAFDoc_MaterialTool |

Linear Rib Feature (v0.31.0)

| Swift API | OCCT Class | |———–|————| | shape.addingLinearRib(profile:direction:draftDirection:fuse:) | BRepFeat_MakeLinearForm |

Oriented Bounding Box (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.orientedBoundingBox(optimal:) → OrientedBoundingBox | BRepBndLib::AddOBB + Bnd_OBB | | shape.orientedBoundingBoxCorners(optimal:) | Bnd_OBB corner computation |

Deep Shape Copy (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.copy(copyGeometry:copyMesh:) | BRepBuilderAPI_Copy |

Sub-Shape Extraction (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.solids / shape.solidCount | TopExp_Explorer(TopAbs_SOLID) | | shape.shells / shape.shellCount | TopExp_Explorer(TopAbs_SHELL) | | shape.wires / shape.wireCount | TopExp_Explorer(TopAbs_WIRE) |

Fuse and Blend (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.fusedAndBlended(with:radius:) | BRepAlgoAPI_Fuse + BRepFilletAPI_MakeFillet | | shape.cutAndBlended(with:radius:) | BRepAlgoAPI_Cut + BRepFilletAPI_MakeFillet |

Evolving Fillet (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.filletEvolving(_:) | BRepFilletAPI_MakeFillet.SetRadius(UandR) |

Per-Face Variable Offset (v0.38.0)

| Swift API | OCCT Class | |———–|————| | shape.offsetPerFace(defaultOffset:faceOffsets:...) | BRepOffset_MakeOffset.SetOffsetOnFace |

Thick/Hollow Solid (v0.37.0)

| Swift API | OCCT Class | |———–|————| | shape.hollowed(removingFaces:thickness:tolerance:joinType:) | BRepOffsetAPI_MakeThickSolid |

Wire Topology Analysis (v0.37.0)

| Swift API | OCCT Class | |———–|————| | wire.analyze(tolerance:) → WireAnalysis | ShapeAnalysis_Wire |

Surface Singularity (v0.37.0)

| Swift API | OCCT Class | |———–|————| | surface.singularityCount(tolerance:) | ShapeAnalysis_Surface.NbSingularities | | surface.isDegenerated(at:tolerance:) | ShapeAnalysis_Surface.IsDegenerated | | surface.hasSingularities(tolerance:) | ShapeAnalysis_Surface.NbSingularities |

Shell from Surface (v0.37.0)

| Swift API | OCCT Class | |———–|————| | Shape.shell(from:uRange:vRange:) | BRepBuilderAPI_MakeShell |

Multi-Tool Common (v0.37.0)

| Swift API | OCCT Class | |———–|————| | Shape.commonAll(_:) | BRepAlgoAPI_Common (iterative) |

Conical Projection (v0.36.0)

| Swift API | OCCT Class | |———–|————| | Shape.projectWireConical(_:onto:eye:) | BRepProj_Projection(Wire, Shape, gp_Pnt) |

Shape Consistency (v0.36.0)

| Swift API | OCCT Class | |———–|————| | shape.encodingRegularity(toleranceDegrees:) | BRepLib::EncodeRegularity | | shape.updatingTolerances(verifyFaces:) | BRepLib::UpdateTolerances | | shape.dividedByNumber(_:) | ShapeUpgrade_FaceDivideArea | | surface.toBezierPatches() | GeomConvert_BSplineSurfaceToBezierSurface |

Boolean with History (v0.36.0)

| Swift API | OCCT Class | |———–|————| | shape.fuseWithHistory(_:) → BooleanResult | BRepAlgoAPI_Fuse.Modified() |

Multi-Offset Wire (v0.35.0)

| Swift API | OCCT Class | |———–|————| | face.multiOffsetWires(offsets:joinType:) | BRepOffsetAPI_MakeOffset.Perform |

Surface-Surface Intersection (v0.35.0)

| Swift API | OCCT Class | |———–|————| | surface.intersectionCurves(with:tolerance:) | GeomAPI_IntSS |

Curve-Surface Intersection (v0.35.0)

| Swift API | OCCT Class | |———–|————| | curve.intersections(with:) | GeomAPI_IntCS |

Cylindrical Projection (v0.35.0)

| Swift API | OCCT Class | |———–|————| | Shape.projectWire(_:onto:direction:) | BRepProj_Projection |

Same Parameter (v0.35.0)

| Swift API | OCCT Class | |———–|————| | shape.sameParameter(tolerance:) | BRepLib::SameParameter |

Shape-to-Shape Section (v0.34.0)

| Swift API | OCCT Class | |———–|————| | shape.section(with:) | BRepAlgoAPI_Section |

Boolean Pre-Validation (v0.34.0)

| Swift API | OCCT Class | |———–|————| | shape.isValidForBoolean | BRepAlgoAPI_Check (self-check) | | shape.isValidForBoolean(with:) | BRepAlgoAPI_Check (pair check) |

Wire Imprinting (v0.34.0)

| Swift API | OCCT Class | |———–|————| | shape.splittingFace(with:faceIndex:) | BRepFeat_SplitShape |

Split by Angle (v0.34.0)

| Swift API | OCCT Class | |———–|————| | shape.splitByAngle(_:) | ShapeUpgrade_ShapeDivideAngle |

Drop Small Edges (v0.34.0)

| Swift API | OCCT Class | |———–|————| | shape.droppingSmallEdges(tolerance:) | ShapeFix_Wireframe.FixSmallEdges (drop mode) |

Multi-Tool Boolean Fuse (v0.34.0)

| Swift API | OCCT Class | |———–|————| | Shape.fuseAll(_:) | BRepAlgoAPI_BuilderAlgo |

Evolved Shape Advanced (v0.33.0)

| Swift API | OCCT Class | |———–|————| | Shape.evolvedAdvanced(spine:profile:joinType:axeProf:solid:volume:tolerance:) | BRepOffsetAPI_MakeEvolved (full constructor) |

Pipe Shell Transition (v0.33.0)

| Swift API | OCCT Class | |———–|————| | Shape.pipeShellWithTransition(spine:profile:mode:transition:solid:) | BRepOffsetAPI_MakePipeShell.SetTransitionMode |

Face from Surface (v0.33.0)

| Swift API | OCCT Class | |———–|————| | Shape.face(from:uRange:vRange:tolerance:) | BRepBuilderAPI_MakeFace(surface, u1, u2, v1, v2, tol) | | surface.toFace() / surface.toFace(uRange:vRange:) | Convenience wrappers |

Edges to Faces (v0.33.0)

| Swift API | OCCT Class | |———–|————| | Shape.facesFromEdges(_:onlyPlanar:) | BRepBuilderAPI_MakeWire + BRepBuilderAPI_MakeFace |

Asymmetric Chamfer (v0.32.0)

| Swift API | OCCT Class | |———–|————| | shape.chamferedTwoDistances(_:) | BRepFilletAPI_MakeChamfer.Add(d1,d2,E,F) | | shape.chamferedDistAngle(_:) | BRepFilletAPI_MakeChamfer.AddDA(d,a,E,F) |

Loft Improvements (v0.32.0)

| Swift API | OCCT Class | |———–|————| | Shape.loft(profiles:solid:ruled:firstVertex:lastVertex:) | BRepOffsetAPI_ThruSections(solid,ruled) |

Offset by Join (v0.32.0)

| Swift API | OCCT Class | |———–|————| | shape.offset(by:tolerance:joinType:removeInternalEdges:) | BRepOffsetAPI_MakeOffsetShape.PerformByJoin |

Feature Operations (v0.32.0)

| Swift API | OCCT Class | |———–|————| | shape.addingRevolutionForm(profile:...) | BRepFeat_MakeRevolutionForm | | shape.addingDraftPrism(profile:sketchFaceIndex:draftAngle:height:fuse:) | BRepFeat_MakeDPrism | | shape.addingDraftPrismThruAll(...) | BRepFeat_MakeDPrism.PerformThruAll | | shape.addingRevolvedFeature(profile:sketchFaceIndex:...) | BRepFeat_MakeRevol | | shape.addingRevolvedFeatureThruAll(...) | BRepFeat_MakeRevol.PerformThruAll |

Validation

| Swift API | OCCT Class | |———–|————| | shape.isValid | BRepCheck_Analyzer | | shape.healed() | ShapeFix_Shape |

What’s NOT Wrapped (and Why)

Some OCCT classes cannot be wrapped through a C bridge because they rely on C++ inheritance patterns that have no equivalent in C or Swift:

  • ChFi3d_FilBuilder / ChFi3d_ChBuilder — These fillet/chamfer builder classes inherit from ChFi3d_Builder, which is a complex stateful base class with protected virtual methods. The public API is deeply coupled to internal OCCT data structures (ChFiDS_SurfData, ChFiDS_Stripe, etc.) that would require wrapping an entire tree of internal types. You don’t need these directly — the higher-level BRepFilletAPI_MakeFillet (exposed as Shape.filleted(), Shape.filletEvolving(), etc.) uses ChFi3d_FilBuilder internally, so all the functionality is already available through the cleaner public API.

  • Approx_FitAndDivide / Approx_FitAndDivide2d — Require implementing the abstract AppCont_Function interface in C++, which means providing callback functions for evaluation. Cannot be driven from Swift without a C++ subclass.

  • BRepBlend_AppSurface — Requires implementing the abstract Approx_SweepFunction interface. Same pattern — needs a C++ subclass providing evaluation callbacks.

  • BRepBlend_*, BlendFunc_*, ChFiKPart_*, ChFiDS_* — Internal implementation classes used by the fillet/chamfer algorithms. Not intended for direct use; their functionality is exposed through the BRepFilletAPI_* public APIs.

In general, OCCT classes that require subclassing with virtual method overrides or that serve as internal implementation details of higher-level algorithms are not wrappable through a C function bridge. The wrapped APIs always provide equivalent or better functionality through OCCT’s public algorithm classes.

What’s NOT Wrapped (Yet)

OCCT has thousands of classes. Some notable ones not yet exposed:

  • Pockets with Islands: Multi-contour pocket features

Note: Many previously missing features have been added in recent versions:

  • v0.51.0: 2D curve completions — Curve2D.parameterAtLength (GCPnts_AbscissaPoint arc-length parameter query), Curve2D.interpolate(tangents:) (interior tangent constraints via Geom2dAPI_Interpolate.Load), Wire.fromCurve2D(on:) (lift 2D parametric curve to 3D wire on a geometric plane via BRepBuilderAPI_MakeEdge + BRepLib::BuildCurves3d)
  • v0.46.0: Edge concavity, curve approximation, local prism, volume/surface inertia — BRepOffset_Analyse edge classification, Approx_Curve3d BSpline approximation, LocOpe_Prism with shape tracking, full inertia tensor with principal axes
  • v0.45.0: N-side filling, self-intersection, face GProp, wire ordering — BRepFill_Filling with edge/point constraints, BRepExtrema_SelfIntersection via BVH, BRepGProp_Face natural bounds + unnormalized normals, ShapeAnalysis_WireOrder edge chain analysis
  • v0.38.0: OCCT test suite audit, round 7 — oriented bounding box, deep shape copy, sub-shape extraction (solids/shells/wires), fuse-and-blend, cut-and-blend, evolving fillet, per-face variable offset
  • v0.37.0: OCCT test suite audit, round 6 — thick/hollow solids, wire topology analysis, surface singularity detection, shell from parametric surface, multi-tool common
  • v0.36.0: OCCT test suite audit, round 5 — conical projection, encode regularity, update tolerances, face division, surface-to-Bezier, boolean history
  • v0.35.0: OCCT test suite audit, round 4 — multi-offset wire, surface-surface intersection, curve-surface intersection, cylindrical projection, same-parameter enforcement
  • v0.34.0: OCCT test suite audit, round 3 — shape-to-shape section, boolean pre-validation, wire imprinting, angle splitting, small edge removal, multi-tool fuse
  • v0.33.0: OCCT test suite audit, round 2 — evolved shapes with full parameter control, pipe shell transition modes, face creation from parametric surfaces, edge-to-face reconstruction
  • v0.32.0: OCCT test suite audit — asymmetric chamfer (two-distance + distance-angle), ruled loft with vertex endpoints, offset by join with join type control, revolution form, draft prism, revolved feature
  • v0.31.0: Medium/low priority audit wrap — quasi-uniform curve sampling (arc-length & deflection), Bezier surface fill, quilt faces, fix small faces, remove locations, revolution from curve, document layers/materials, linear rib feature
  • v0.30.0: Deep audit wrap — non-uniform scale, shell/vertex creation, simple offset, middle path, edge fusion, make volume, make connected, curve-curve/curve-surface/surface-surface distance & intersection, analytical recognition, shape contents census, canonical form recognition, edge analysis, find surface, wireframe fixing, internal wire removal, document length unit
  • v0.29.0: Comprehensive audit wrap — wedge primitives, NURBS conversion, fast sewing, normal projection, half-space, shape editing, draft extrusion, wire explorer, batch 3D curve/surface evaluation, polynomial solver, hatch patterns, planarity analysis
  • v0.28.0: New rc4 APIs — helix curves, KD-tree spatial queries, STEP optimization, batch curve evaluation
  • v0.27.0: OCCT 8.0.0-rc4 upgrade — 111 internal improvements, performance gains, deprecation fixes
  • v0.26.0: Annotations & measurements — length/radius/angle/diameter dimensions, text labels, point clouds
  • v0.25.0: Topological naming — record/trace naming history, persistent named selections
  • v0.131.0: Final RC5 wrapping — Approx_BSplineApproxInterp (constrained least-squares BSpline fitting), GeomEval TBezier/AHTBezier curves (3D/2D) and surfaces, GeomAdaptor_TransformedCurve, upgrade documentation (3408 ops, 1553 tests)
  • v0.130.0: RC5 analytical geometry — GeomEval 3D curves (CircularHelix, SineWave), GeomEval surfaces (Ellipsoid, Hyperboloid, Paraboloid, CircularHelicoid, HypParaboloid), Geom2dEval 2D curves (ArchimedeanSpiral, LogarithmicSpiral, CircleInvolute, SineWave2D), GeomFill_Gordon transfinite interpolation surface, PointSetLib point cloud analysis (centroid/inertia/PCA), ExtremaPC point-curve distance (3386 ops, 1538 tests)
  • v0.129.0: BSplineCurve3D local derivatives (LocalD0/D1/D2/D3/DN on knot span), BSplineSurface completions (SetWeightCol/Row, IncrementU/VMultiplicity range, First/LastU/VKnotIndex, CheckAndSegment), BezierSurface completions (InsertPoleCol/RowBefore, SetPoleCol/Row, SetWeightCol/Row) (3353 ops, 2920 tests)
  • v0.128.0: ChamferBuilder history (Generated/Modified/IsDeleted/SetMode/Simulate/NbSurf), SectionBuilder full builder pattern, BRep_Tool extras (IsClosedOnFace/PolygonOnSurface/SetUVPoints), Curve3D/Curve2D/Surface in-place transforms (3333 ops, 2907 tests)
  • v0.127.0: Priority class gaps closure — BRepAlgoAPI_Section with plane/surface, BSplineCurve PeriodicNormalization/IsG1, BRep_Tool CurveOnPlane/Polygon3D/PolygonOnTriangulation, BezierSurface SetPoleCol/RowWeights, ColorTool GetAllColors, FilletBuilder history (GetBounds/GetLaw/SetLaw/Generated/Modified/IsDeleted) (3293 ops, 2878 tests)
  • v0.126.0: Final completeness release — BRep_Tool completions (CurveOnSurface, HasContinuity, Continuity, MaxContinuity, Degenerated, NaturalRestriction, RangeOnFace, ParameterOnFace, ParametersOnFace, UVPoints, MaxTolerance), XCAFDoc_ColorTool completions (AddColor, RemoveColor, GetColorCount, UnSetColor, IsVisible, SetVisibility, IsColorByLayer, SetColorByLayer, FindColor, SetInstanceColor, GetInstanceColor), Geom2d_BezierCurve completions (InsertPoleAfter, RemovePole, Segment, IncreaseDegree, StartPoint, EndPoint, GetPoles, Reverse), BSplineSurface completions (GetUMultiplicities, GetVMultiplicities, UReverse, VReverse, PeriodicNormalization), BezierSurface completions (InsertPoleCol/Row, RemovePoleCol/Row, IncreaseDegree, UReverse, VReverse), FilletBuilder completions (SetParams, SetContinuity, SetFilletShape, GetFilletShape, ResetContour, Simulate), XCAFDoc_ShapeTool completions (IsFree, IsSimpleShape, IsComponent, IsCompound, IsSubShape, IsExternRef, GetUsers, ComputeShapes, NbComponents), Bezier3D completions (InsertPoleBefore, Reverse, SetPoleWithWeight) (3277 ops, 3277 tests)
  • v0.125.0: BSpline/Bezier deep method completion — BSplineSurface local evaluation (LocalD0/D1/D2/D3/DN/Value), isoparametric curves (UIso/VIso), knot location (LocateU/V), individual knot/multiplicity queries, knot distribution, bulk poles, bounds, closure. Curve2D BSpline local evaluation (LocalD0/D1/D2/D3/DN/Value), knot span location, knot indices, distribution, multiplicities, start/end points, poles, closure/periodicity/continuity. BezierCurve3D start/end points, bulk poles/weights, closure/periodicity/continuity. BezierSurface iso curves, closure/periodicity/continuity, bulk poles/weights, bounds (3215 ops, 3250 tests)
  • v0.124.0: ChamferBuilder completions (distance get/set, contour navigation, vertex/edge queries, abscissa, closed/tangent, symmetric/two-dist/dist-angle mode queries), FilletBuilder completions (SetRadius on edge/vertex, two-radii evolving, contour navigation, surface counts, stripe status, faulty queries), WireAnalyzer (ShapeAnalysis_Wire: order, connected, small, degenerated, gap, seam, lacking, self-intersection, closed, distances) (3159 ops, 3203 tests)
  • v0.123.0: ThruSections extensions (CheckCompatibility, SetParType, SetCriteriumWeight, GeneratedFace), CellsBuilder extensions (AddToResult selective, RemoveFromResult, GetAllParts, MakeContainers), PipeShell extensions (GetStatus, Simulate), UnifySameDomain builder (AllowInternalEdges, KeepShape, SafeInputMode, linear/angular tolerance), BRepAlgoAPI_Section extended (approximation, pcurves, ancestor faces), Curve3D queries (period, firstParameter, lastParameter), Surface queries (uPeriod, vPeriod), Shape queries (typeName, isNotEqual, nullified, emptied, moved, orientationValue, nbEdges/nbFaces/nbVertices) (3105 ops, 3182 tests)
  • v0.122.0: WireFixer extended (FixGaps2d, FixSeam, FixShifted, FixNotchedEdges, FixTails, tail config), ShapeFix_Edge (AddCurve3d, AddPCurve, RemoveCurve3d, RemovePCurve, FixReversed2d), BRepTools statics (Clean, RemoveInternals, DetectClosedness, EvalAndUpdateTol, Map3DEdges, UpdateFaceUVPoints, CompareVertices/Edges, IsReallyClosed), BRepLib extended (EnsureNormalConsistency, UpdateDeflection, ContinuityOfFaces, BuildCurves3dAll, SameParameterAll), History extended (Merge, ReplaceGenerated/Modified, GetModified/GeneratedShapes), Sewing extended (DeletedFaces, IsModified/Modified, IsDegenerated, IsSectionBound, WhichFace, Load, modes) (3068 ops, 3151 tests)
  • v0.121.0: GLTF/GLB import+export (RWGltf_CafReader/CafWriter with RapidJSON), FilletBuilder (BRepFilletAPI_MakeFillet builder pattern with edge control, contour queries, error diagnosis), ChamferBuilder (BRepFilletAPI_MakeChamfer with symmetric/two-dist/dist-angle modes), BSpline completions (Surface: SetNotPeriodic, SetOrigin, IncreaseMultiplicity, InsertKnots batch, MovePoint, SetPoleCol/Row; Curve3D/2D: SetNotPeriodic, SetOrigin, IncreaseMultiplicity, IncrementMultiplicity, SetKnots, Reverse, MovePointAndTangent) (3024 ops, 3119 tests)
  • v0.120.0: Final cleanup — IsCN continuity checks (Curve3D/2D, Surface U/V), ReversedParameter (Curve3D/2D), ParametricTransformation, continuity order wrappers, Surface UReversed/VReversed copies and reversed parameters, BSpline RemoveVKnot, gp_Vec CrossMagnitude/CrossSquareMagnitude, gp_Dir IsOpposite/IsNormal, Bezier Resolution (Curve3D/Surface), MaxDegree statics (Bezier Curve3D/2D/Surface, BSpline Surface/Curve2D) (2970 ops, 3046 tests)
  • v0.119.0: BREP string serialization, gp_Pln/gp_Lin distance/contains, Geom_BezierSurface queries/mutations, Curve2D Bezier properties, Curve2D BSpline extras, BSplineSurface resolution/periodicity/weight (2945 ops, 3015 tests)
  • v0.118.0: BRepBndLib shape bounding boxes (AABB, optimal, OBB detailed), ShapeAnalysis_ShapeTolerance (min/max/avg/over/inRange), BRepAlgoAPI_Check boolean validation, BRepAlgoAPI_Defeaturing feature removal, Convert_CompPolynomialToPoles, gp_Trsf matrix transform/displacement/transformation, TopExp common vertex, BRep_Tool edge/face flags (SameParameter/SameRange/NaturalRestriction/IsGeometric), Sewing multiple edges (2912 ops, 2982 tests)
  • v0.117.0: MathPoly rc4 polynomial solvers (Linear/Quadratic/Cubic/Quartic), MathInteg rc4 numerical integration (Gauss/Kronrod/TanhSinh adaptive), UnitsMethods length unit conversion, LProp3d curve/surface local properties (curvature/tangent/normal/directions via adaptor), ProjLib surface projectors (line/circle on plane/cylinder) (2890 ops, 2943 tests)
  • v0.116.0: HelixGeom helix construction (rc4: BuilderHelix, BuilderHelixCoil, HelixCurve, Tools), gp_Ax3 coordinate system (create, angle, coplanar, mirror, rotate, translate), gp_GTrsf2d affinity/multiply/invert/transform, gp_Mat2d 2x2 matrix (identity, rotation, scale, determinant, invert, multiply, transpose), quaternion interpolation (SLERP, NLERP, transform lerp), gp_XY/gp_XYZ vector math (modulus, cross, dot, dotCross, normalize), math solvers (BracketedRoot, BracketMinimum, FRPR conjugate gradient, FunctionAllRoots, GaussLeastSquare, NewtonFunctionRoot, Uzawa constrained optimization, EigenValuesSearcher, KronrodSingleIntegration, GaussMultipleIntegration, GaussSetIntegration) (2869 ops, 2918 tests)
  • v0.115.0: GeomAPI_Interpolate expansion (endpoint/per-point tangents, parameters, periodic 3D/2D), PointsToBSpline configurable (3D/2D/surface grid), BRepBuilderAPI_Transform/GTransform (general affine + non-uniform scale), BRepAlgoAPI expansion (section tolerance, split multi, cut with history, defeature tolerance), ThruSections builder (9 ops), GeomConvert split/concatenate, ShapeFix_Shape builder (8 ops), Poly_Triangulation queries (9 ops), GCPnts arc length/parameter (4 ops), BRepAdaptor exposure (6 ops), shape queries (OBB volume, tolerances, free edges/wires/faces, bounding diagonal, centroid, total edge length), Curve3D/2D arc length + closest point, Surface normal/curvatures/fromPointGrid (2819 ops, 2861 tests)
  • v0.114.0: TopoDS_Builder low-level topology, ShapeContentsExtended analysis, FreeBoundsProperties handle-based, WireBuilder incremental, Boolean tolerance/glue modes, Offset wire/face, ThickSolid options, BRepLib utilities, mass properties (inertia/principal axes/radius of gyration), Curve/Surface DN arbitrary derivatives, BRep_Tool queries, unique sub-shape counts, type names (2748 ops, 2811 tests)
  • v0.113.0: MakeEdge completions (ellipse/hyperbola/parabola/curve), ProjectionOnCurve/Surface multi-result, DistShapeShape full results, WireFixer/FaceFixer individual fixes, MakeFace from surface/plane/cylinder, IntCS full results, BSplineCurve/Surface mutations (2682 ops, 2758 tests)
  • v0.112.0: RWMesh face/vertex iterators, Intf_Tool line-box clipping, BRepAlgo_AsDes tracker, BiTgte_CurveOnEdge, shape location/orientation/type, wire/shell construction, BRepCheck extended tolerance analysis, curve/surface type queries, Extrema point-on-curve/surface (2599 ops, 2244 tests)
  • v0.111.0: Advanced math solvers & local properties — PSO, GlobOptMin, FunctionRoots, GaussIntegration, NewtonFunctionSetRoot, GeomGridEval (3D/2D/Surface), BRepLProp (CLProps/SLProps), MathPoly_Laguerre polynomial solver
  • v0.110.0: Constraint solver infrastructure — C callback adapters for math solvers, EvalD0/D1/D2/D3 curve evaluation, batch evaluation, surface differential evaluation
  • v0.24.0: Medial axis transform — Voronoi skeleton, arc/node graph, bisector curves, wall thickness
  • v0.23.0: NLPlate — advanced plate surfaces, non-linear G0/G1 surface deformation
  • v0.22.0: Curve projection onto surfaces — 2D UV projection, composite segments, 3D-on-surface, plane projection
  • v0.21.0: Law functions, variable-section sweeps, XDE GD&T (dimensions, tolerances, datums)
  • v0.20.0: Full parametric surface wrapping — analytic, swept, freeform, pipe, draw methods, curvature
  • v0.19.0: Full 3D parametric curve wrapping — primitives, BSplines, operations, conversion, draw methods
  • v0.18.0: 3D geometry analysis — face surface properties, edge curve queries, point projection, proximity
  • v0.17.0: STL/OBJ import, OBJ/PLY export, advanced shape healing, point classification
  • v0.16.0: Full Geom2d wrapping — 2D parametric curves with evaluation, operations, analysis, Gcc solver, hatching, bisectors
  • v0.14.0: Variable radius fillets, multi-edge blends, 2D fillet/chamfer, surface filling, plate surfaces
  • v0.13.0: Shape analysis, fixing, unification, simplification
  • v0.12.0: Boss, pocket, drilling, shape splitting, gluing, evolved surfaces, pattern operations
  • v0.11.0: Face from wire, sewing operations, solid from shell, curve interpolation
  • v0.10.0: IGES import/export, BREP native format
  • v0.9.0: B-spline surfaces, ruled surfaces, curve analysis
  • v0.8.0: Draft angles, selective fillet, defeaturing, pipe shell modes
  • v0.7.0: Volume, surface area, distance measurement, center of mass

Adding New OCCT Functions

To wrap additional OCCT functionality, you need to modify three files:

  1. Sources/OCCTBridge/include/OCCTBridge.h - Add C function declaration
  2. Sources/OCCTBridge/src/OCCTBridge.mm - Implement using OCCT C++ API
  3. Sources/OCCTSwift/Shape.swift (or Wire.swift) - Add Swift wrapper

See docs/EXTENDING.md for the complete guide with:

  • Step-by-step walkthrough with example
  • Common OCCT patterns (primitives, booleans, topology iteration)
  • Memory management details
  • Internal struct documentation
  • Debugging tips