Package Toolchain API Package

Getting Started

Quickstart — npm What is libcascade First Shape Tutorial FAQ Projects using libcascade

Guides

Bundler & locateFile Multi-threaded build Debugging wasm exceptions Export STEP Export glTF / GLB Render with three.js Visualize shape helper

Examples

Boolean logo Classic bottle Polygon extrusion

Concepts

Calling OCCT from JavaScript Memory and disposables Handles and collections Return shapes

Reference

Entry points Module shape Exception classes

Maintained by Tau during the V3 / OCCT V8 release window — see the FAQ.

API Reference

API Reference

Auto-generated reference for 5348 bound OCCT classes across 6 modules and 262 packages.

wasm42 MB

compiled5344

requested4496

classes5348

search entries61429

▸ApplicationFramework193 classes · 3 toolkits

TKCAF42 classes

AppStd TDataXtd TNaming

TKCDF55 classes

CDF CDM LDOM PCDM

TKLCAF96 classes

AppStdL TDF TDataStd TDocStd TFunction

▸DataExchange1852 classes · 10 toolkits

TKDE2 classes

TKDEGLTF23 classes

TKDEIGES451 classes

BRepToIGES BRepToIGESBRep Geom2dToIGES GeomToIGES IGESAppli IGESBasic IGESCAFControl IGESControl IGESConvGeom IGESData IGESDefs IGESDimen IGESDraw IGESGeom IGESGraph IGESSelect IGESSolid IGESToBRep

TKDEOBJ12 classes

TKDEPLY2 classes

TKDESTEP1067 classes

APIHeaderSection GeomToStep RWHeaderSection STEPCAFControl STEPConstruct STEPControl STEPEdit STEPSelections StepAP203 StepAP209 StepAP214 StepAP242 StepBasic StepData StepDimTol StepElement StepFEA StepFile StepGeom StepKinematics StepRepr StepSelect StepShape StepTidy StepToGeom StepToTopoDS StepVisual TopoDSToStep

TKDESTL6 classes

DESTL RWStl StlAPI

TKRWMesh15 classes

TKXCAF68 classes

XCAFApp XCAFDimTolObjects XCAFDoc XCAFNoteObjects XCAFPrs XCAFView

TKXSBase206 classes

IFGraph IFSelect Interface MoniTool Transfer TransferBRep XSAlgo XSControl

▸FoundationClasses437 classes · 2 toolkits

TKMath269 classes

BSplCLib BSplSLib BVH Bnd CSLib Convert ElCLib ElSLib GeomAbs MathInteg MathLin MathOpt MathPoly MathRoot MathSys MathUtils PLib Poly TopLoc gp math

TKernel168 classes

FSD Message NCollection OSD Precision Quantity Resource Standard StdFail Storage TColStd TCollection Units UnitsAPI UnitsMethods

▸ModelingAlgorithms1259 classes · 13 toolkits

TKBO134 classes

BOPAlgo BOPDS BOPTools BRepAlgoAPI IntTools

TKBool40 classes

BRepAlgo BRepFill BRepProj

TKExpress65 classes

TKFeat32 classes

BRepFeat LocOpe

TKFillet99 classes

BRepBlend BRepFilletAPI Blend BlendFunc ChFi2d ChFi3d ChFiDS ChFiKPart FilletSurf

TKGeomAlgo346 classes

AppBlend ApproxInt FairCurve GccAna GccEnt GccInt Geom2dAPI Geom2dGcc Geom2dHatch Geom2dInt GeomAPI GeomFill GeomInt Hatch HatchGen IntCurve IntCurveSurface IntImp IntPatch IntPolyh IntRes2d IntStart IntSurf IntWalk Intf Law LocalAnalysis NLPlate Plate TopTrans

TKHLR95 classes

Contap HLRAlgo HLRAppli HLRBRep HLRTopoBRep Intrv TopBas TopCnx

TKHelix7 classes

HelixBRep HelixGeom

TKMesh94 classes

BRepMesh IMeshData IMeshTools

TKOffset34 classes

BRepOffset BRepOffsetAPI BiTgte Draft

TKPrim36 classes

BRepPreviewAPI BRepPrim BRepPrimAPI BRepSweep Sweep

TKShHealing112 classes

ShapeAlgo ShapeAnalysis ShapeBuild ShapeConstruct ShapeCustom ShapeExtend ShapeFix ShapeProcess ShapeProcessAPI ShapeUpgrade

TKTopAlgo165 classes

BRepApprox BRepBndLib BRepBuilderAPI BRepCheck BRepClass BRepClass3d BRepExtrema BRepGProp BRepIntCurveSurface BRepLib BRepMAT2d BRepTopAdaptor Bisector IntCurvesFace MAT MAT2d

▸ModelingData750 classes · 4 toolkits

TKBRep326 classes

BRep BRepAdaptor BRepGraph BRepGraphInc BRepLProp BRepTools BinTools TopExp TopTools TopoDS

TKG2d40 classes

Adaptor2d Geom2d Geom2dAdaptor Geom2dEval Geom2dHash

TKG3d95 classes

Adaptor3d AdvApprox Geom GeomAdaptor GeomEval GeomHash TopAbs

TKGeomBase289 classes

AppCont AppParCurves Approx BndLib CPnts Extrema ExtremaPC FEmTool GC GCPnts GProp Geom2dConvert GeomBndLib GeomConvert GeomLProp GeomLib GeomProjLib GeomTools Hermit IntAna IntAna2d LProp ProjLib gce

▸Synthetic857 classes · 1 toolkits

NCollectionAuto857 classes

Return shapes

What OCCT methods return in JS — native values, in-place class outputs, primitive envelopes, returnValue, and Handle elision.

ApplicationFramework

OCAF document framework: TDF/TDocStd/XCAF (assemblies, attributes, naming).