mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
synced 2026-05-11 18:32:35 +08:00
cec41bb93d
Support of reading and writing tessellated geometry is added for the following STEP entities: - triangulated face - complex triangulated face - tessellated shell - tessellated solid - tessellated shape representation Models without BRep geometry (mesh formats like STL, OBJ and so on) are supported for writing to STEP. New parameters are added to enable/disable tessellated geometry reading and writing: - read.step.tessellated (On/Off/OnNoBRep) (On by default) - write.step.tessellated (On/Off/OnNoBRep) (OnNoBRep by default) OnNoBRep - tessellation is read/written only for entities for which there is no BRep representation. Faces with poly triangulation are written in STEP as triangulated face entities with one coordinates list per face. Only one poly triangulation per face (returned by BRep_Tool::Triangulation) is written to STEP.
279 lines
11 KiB
C++
279 lines
11 KiB
C++
// Created on: 1994-06-24
|
|
// Created by: Frederic MAUPAS
|
|
// Copyright (c) 1994-1999 Matra Datavision
|
|
// Copyright (c) 1999-2014 OPEN CASCADE SAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
|
|
|
|
#include <Interface_Static.hxx>
|
|
#include <MoniTool_DataMapOfShapeTransient.hxx>
|
|
#include <Message_ProgressScope.hxx>
|
|
#include <StdFail_NotDone.hxx>
|
|
#include <StepShape_ClosedShell.hxx>
|
|
#include <StepShape_ConnectedFaceSet.hxx>
|
|
#include <StepShape_FaceSurface.hxx>
|
|
#include <StepShape_HArray1OfFace.hxx>
|
|
#include <StepShape_HArray1OfShell.hxx>
|
|
#include <StepShape_OpenShell.hxx>
|
|
#include <StepShape_Shell.hxx>
|
|
#include <StepShape_ShellBasedSurfaceModel.hxx>
|
|
#include <StepShape_TopologicalRepresentationItem.hxx>
|
|
#include <StepVisual_TessellatedGeometricSet.hxx>
|
|
#include <StepVisual_TessellatedShell.hxx>
|
|
#include <StepVisual_TessellatedSolid.hxx>
|
|
#include <TCollection_HAsciiString.hxx>
|
|
#include <TColStd_SequenceOfTransient.hxx>
|
|
#include <TopoDS.hxx>
|
|
#include <TopoDS_Face.hxx>
|
|
#include <TopoDS_Iterator.hxx>
|
|
#include <TopoDS_Shell.hxx>
|
|
#include <TopoDS_Solid.hxx>
|
|
#include <TopoDSToStep.hxx>
|
|
#include <TopoDSToStep_Builder.hxx>
|
|
#include <TopoDSToStep_MakeShellBasedSurfaceModel.hxx>
|
|
#include <TopoDSToStep_Tool.hxx>
|
|
#include <Transfer_FinderProcess.hxx>
|
|
#include <TransferBRep_ShapeMapper.hxx>
|
|
|
|
//=============================================================================
|
|
// Create a ShellBasedSurfaceModel of StepShape from a Face of TopoDS
|
|
//=============================================================================
|
|
TopoDSToStep_MakeShellBasedSurfaceModel::
|
|
TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Face& aFace,
|
|
const Handle(Transfer_FinderProcess)& FP,
|
|
const Message_ProgressRange& theProgress)
|
|
{
|
|
done = Standard_False;
|
|
MoniTool_DataMapOfShapeTransient aMap;
|
|
|
|
const Standard_Integer aWriteTessGeom = Interface_Static::IVal("write.step.tessellated");
|
|
|
|
TopoDSToStep_Tool aTool(aMap, Standard_False);
|
|
TopoDSToStep_Builder StepB(aFace, aTool, FP, aWriteTessGeom, theProgress);
|
|
if (theProgress.UserBreak())
|
|
return;
|
|
|
|
TopoDSToStep::AddResult ( FP, aTool );
|
|
|
|
if (StepB.IsDone())
|
|
{
|
|
Handle(StepShape_FaceSurface) aFS =
|
|
Handle(StepShape_FaceSurface)::DownCast(StepB.Value());
|
|
if (!aFS.IsNull())
|
|
{
|
|
StepShape_Shell aShellSelect;
|
|
Handle(StepShape_OpenShell) aOpenShell
|
|
= new StepShape_OpenShell();
|
|
Handle(StepShape_HArray1OfFace) aCfsFaces =
|
|
new StepShape_HArray1OfFace(1, 1);
|
|
aCfsFaces->SetValue(1, aFS);
|
|
Handle(TCollection_HAsciiString) aName =
|
|
new TCollection_HAsciiString("");
|
|
aOpenShell->Init(aName, aCfsFaces);
|
|
aShellSelect.SetValue(aOpenShell);
|
|
Handle(StepShape_HArray1OfShell) aSbsmFaces =
|
|
new StepShape_HArray1OfShell(1, 1);
|
|
aSbsmFaces->SetValue(1, aShellSelect);
|
|
theShellBasedSurfaceModel = new StepShape_ShellBasedSurfaceModel();
|
|
theShellBasedSurfaceModel->Init(aName, aSbsmFaces);
|
|
}
|
|
theTessellatedItem = StepB.TessellatedValue();
|
|
done = Standard_True;
|
|
}
|
|
else
|
|
{
|
|
done = Standard_False;
|
|
Handle(TransferBRep_ShapeMapper) errShape =
|
|
new TransferBRep_ShapeMapper(aFace);
|
|
FP->AddWarning(errShape, " Single Face not mapped to ShellBasedSurfaceModel");
|
|
}
|
|
}
|
|
|
|
//=============================================================================
|
|
// Create a ShellBasedSurfaceModel of StepShape from a Shell of TopoDS
|
|
//=============================================================================
|
|
|
|
TopoDSToStep_MakeShellBasedSurfaceModel::
|
|
TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Shell& aShell,
|
|
const Handle(Transfer_FinderProcess)& FP,
|
|
const Message_ProgressRange& theProgress)
|
|
{
|
|
done = Standard_False;
|
|
StepShape_Shell aShellSelect;
|
|
Handle(StepShape_HArray1OfShell) aSbsmBoundary;
|
|
Handle(StepShape_OpenShell) aOpenShell;
|
|
Handle(StepShape_ClosedShell) aClosedShell;
|
|
MoniTool_DataMapOfShapeTransient aMap;
|
|
|
|
const Standard_Integer aWriteTessGeom = Interface_Static::IVal("write.step.tessellated");
|
|
|
|
TopoDSToStep_Tool aTool(aMap, Standard_False);
|
|
TopoDSToStep_Builder StepB(aShell, aTool, FP, aWriteTessGeom, theProgress);
|
|
if (theProgress.UserBreak())
|
|
return;
|
|
//TopoDSToStep::AddResult ( FP, aTool );
|
|
|
|
if (StepB.IsDone()) {
|
|
if (!StepB.Value().IsNull()) {
|
|
aSbsmBoundary = new StepShape_HArray1OfShell(1, 1);
|
|
if (aShell.Closed()) {
|
|
aClosedShell = Handle(StepShape_ClosedShell)::DownCast(StepB.Value());
|
|
aShellSelect.SetValue(aClosedShell);
|
|
}
|
|
else {
|
|
aOpenShell = Handle(StepShape_OpenShell)::DownCast(StepB.Value());
|
|
aShellSelect.SetValue(aOpenShell);
|
|
}
|
|
aSbsmBoundary->SetValue(1, aShellSelect);
|
|
theShellBasedSurfaceModel = new StepShape_ShellBasedSurfaceModel();
|
|
Handle(TCollection_HAsciiString) aName =
|
|
new TCollection_HAsciiString("");
|
|
theShellBasedSurfaceModel->Init(aName, aSbsmBoundary);
|
|
TopoDSToStep::AddResult(FP, aShell, theShellBasedSurfaceModel);
|
|
}
|
|
theTessellatedItem = StepB.TessellatedValue();
|
|
done = Standard_True;
|
|
}
|
|
else {
|
|
done = Standard_False;
|
|
Handle(TransferBRep_ShapeMapper) errShape =
|
|
new TransferBRep_ShapeMapper(aShell);
|
|
FP->AddWarning(errShape, " Shell not mapped to ShellBasedSurfaceModel");
|
|
}
|
|
|
|
TopoDSToStep::AddResult ( FP, aTool );
|
|
}
|
|
|
|
//=============================================================================
|
|
// Create a ShellBasedSurfaceModel of StepShape from a Solid of TopoDS
|
|
//=============================================================================
|
|
|
|
TopoDSToStep_MakeShellBasedSurfaceModel::
|
|
TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Solid& aSolid,
|
|
const Handle(Transfer_FinderProcess)& FP,
|
|
const Message_ProgressRange& theProgress)
|
|
{
|
|
done = Standard_False;
|
|
StepShape_Shell aShellSelect;
|
|
Handle(StepShape_HArray1OfShell) aSbsmBoundary;
|
|
Handle(StepShape_OpenShell) aOpenShell;
|
|
Handle(StepShape_ClosedShell) aClosedShell;
|
|
TopoDS_Iterator It;
|
|
TopoDS_Shell aShell;
|
|
MoniTool_DataMapOfShapeTransient aMap;
|
|
TColStd_SequenceOfTransient S;
|
|
TColStd_SequenceOfTransient aTessShells;
|
|
|
|
const Standard_Integer aWriteTessGeom = Interface_Static::IVal("write.step.tessellated");
|
|
|
|
Standard_Integer nbshapes = 0;
|
|
for (It.Initialize(aSolid); It.More(); It.Next())
|
|
if (It.Value().ShapeType() == TopAbs_SHELL)
|
|
nbshapes++;
|
|
Message_ProgressScope aPS(theProgress, NULL, nbshapes);
|
|
for (It.Initialize(aSolid); It.More() && aPS.More(); It.Next())
|
|
{
|
|
if (It.Value().ShapeType() == TopAbs_SHELL) {
|
|
aShell = TopoDS::Shell(It.Value());
|
|
|
|
TopoDSToStep_Tool aTool(aMap, Standard_False);
|
|
TopoDSToStep_Builder StepB(aShell, aTool, FP, aWriteTessGeom, aPS.Next());
|
|
TopoDSToStep::AddResult ( FP, aTool );
|
|
|
|
if (StepB.IsDone()) {
|
|
if (!StepB.Value().IsNull()) {
|
|
S.Append(StepB.Value());
|
|
}
|
|
Handle(StepVisual_TessellatedItem) aTessShell = StepB.TessellatedValue();
|
|
if (!aTessShell.IsNull())
|
|
{
|
|
aTessShells.Append(aTessShell);
|
|
}
|
|
}
|
|
else {
|
|
Handle(TransferBRep_ShapeMapper) errShape =
|
|
new TransferBRep_ShapeMapper(aShell);
|
|
FP->AddWarning(errShape, " Shell from Solid not mapped to ShellBasedSurfaceModel");
|
|
}
|
|
}
|
|
}
|
|
if (!aPS.More())
|
|
return;
|
|
Standard_Integer N = S.Length();
|
|
if ( N >= 1) {
|
|
aSbsmBoundary = new StepShape_HArray1OfShell(1,N);
|
|
for (Standard_Integer i=1; i<=N; i++) {
|
|
aOpenShell = Handle(StepShape_OpenShell)::DownCast(S.Value(i));
|
|
if (!aOpenShell.IsNull()) {
|
|
aShellSelect.SetValue(aOpenShell);
|
|
}
|
|
else {
|
|
aClosedShell = Handle(StepShape_ClosedShell)::DownCast(S.Value(i));
|
|
aShellSelect.SetValue(aClosedShell);
|
|
}
|
|
aSbsmBoundary->SetValue(i,aShellSelect);
|
|
}
|
|
|
|
theShellBasedSurfaceModel = new StepShape_ShellBasedSurfaceModel();
|
|
Handle(TCollection_HAsciiString) aName =
|
|
new TCollection_HAsciiString("");
|
|
theShellBasedSurfaceModel->Init(aName,aSbsmBoundary);
|
|
|
|
if (!aTessShells.IsEmpty())
|
|
{
|
|
Handle(StepVisual_TessellatedGeometricSet) aTessGS = new StepVisual_TessellatedGeometricSet();
|
|
Handle(TCollection_HAsciiString) aTessName = new TCollection_HAsciiString("");
|
|
NCollection_Handle<StepVisual_Array1OfTessellatedItem> anItems
|
|
= new StepVisual_Array1OfTessellatedItem(1, aTessShells.Length());
|
|
Standard_Integer i = 1;
|
|
for (TColStd_SequenceOfTransient::Iterator anIt(aTessShells); anIt.More(); anIt.Next(), ++i)
|
|
{
|
|
Handle(StepVisual_TessellatedShell) aTessShell = Handle(StepVisual_TessellatedShell)::DownCast(anIt.Value());
|
|
anItems->SetValue(i, aTessShell);
|
|
}
|
|
aTessGS->Init(aTessName, anItems);
|
|
}
|
|
|
|
done = Standard_True;
|
|
}
|
|
else {
|
|
done = Standard_False;
|
|
Handle(TransferBRep_ShapeMapper) errShape =
|
|
new TransferBRep_ShapeMapper(aSolid);
|
|
FP->AddWarning(errShape," Solid contains no Shell to be mapped to ShellBasedSurfaceModel");
|
|
}
|
|
}
|
|
|
|
//=============================================================================
|
|
// renvoi des valeurs
|
|
//=============================================================================
|
|
|
|
const Handle(StepShape_ShellBasedSurfaceModel) &
|
|
TopoDSToStep_MakeShellBasedSurfaceModel::Value() const
|
|
{
|
|
StdFail_NotDone_Raise_if (!done, "TopoDSToStep_MakeShellBasedSurfaceModel::Value() - no result");
|
|
return theShellBasedSurfaceModel;
|
|
}
|
|
|
|
// ============================================================================
|
|
// Method : TopoDSToStep_MakeShellBasedSurfaceModel::TessellatedValue
|
|
// Purpose : Returns TessellatedItem as the optional result
|
|
// ============================================================================
|
|
|
|
const Handle(StepVisual_TessellatedItem)&
|
|
TopoDSToStep_MakeShellBasedSurfaceModel::TessellatedValue() const
|
|
{
|
|
StdFail_NotDone_Raise_if(!done, "TopoDSToStep_MakeShellBasedSurfaceModel::TessellatedValue() - no result");
|
|
return theTessellatedItem;
|
|
}
|