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4151c94d20
RWObj_Reader and RWObj_CafReader - added new classes reading triangulation from OBJ file.
105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
// Author: Kirill Gavrilov
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// Copyright (c) 2019 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <RWObj_CafReader.hxx>
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#include <Message_ProgressSentry.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(RWObj_CafReader, RWMesh_CafReader)
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//================================================================
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// Function : Constructor
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// Purpose :
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//================================================================
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RWObj_CafReader::RWObj_CafReader()
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: myIsSinglePrecision (Standard_False)
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{
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//myCoordSysConverter.SetInputLengthUnit (-1.0); // length units are undefined within OBJ file
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// OBJ format does not define coordinate system (apart from mentioning that it is right-handed),
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// however most files are stored Y-up
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myCoordSysConverter.SetInputCoordinateSystem (RWMesh_CoordinateSystem_glTF);
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}
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//================================================================
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// Function : BindNamedShape
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// Purpose :
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//================================================================
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void RWObj_CafReader::BindNamedShape (const TopoDS_Shape& theShape,
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const TCollection_AsciiString& theName,
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const RWObj_Material* theMaterial,
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const Standard_Boolean theIsRootShape)
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{
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if (theShape.IsNull())
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{
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return;
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}
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RWMesh_NodeAttributes aShapeAttribs;
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aShapeAttribs.Name = theName;
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if (theMaterial != NULL)
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{
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aShapeAttribs.Style.SetColorSurf (Quantity_ColorRGBA (theMaterial->DiffuseColor, 1.0f - theMaterial->Transparency));
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}
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myAttribMap.Bind (theShape, aShapeAttribs);
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if (theIsRootShape)
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{
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myRootShapes.Append (theShape);
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}
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}
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//================================================================
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// Function : createReaderContext
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// Purpose :
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//================================================================
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Handle(RWObj_TriangulationReader) RWObj_CafReader::createReaderContext()
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{
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Handle(RWObj_TriangulationReader) aReader = new RWObj_TriangulationReader();
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return aReader;
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}
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//================================================================
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// Function : performMesh
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// Purpose :
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//================================================================
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Standard_Boolean RWObj_CafReader::performMesh (const TCollection_AsciiString& theFile,
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const Handle(Message_ProgressIndicator)& theProgress,
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const Standard_Boolean theToProbe)
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{
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Handle(RWObj_TriangulationReader) aCtx = createReaderContext();
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aCtx->SetSinglePrecision (myIsSinglePrecision);
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aCtx->SetCreateShapes (Standard_True);
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aCtx->SetShapeReceiver (this);
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aCtx->SetTransformation (myCoordSysConverter);
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aCtx->SetMemoryLimit (myMemoryLimitMiB == -1 ? Standard_Size(-1) : Standard_Size(myMemoryLimitMiB * 1024 * 1024));
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Standard_Boolean isDone = Standard_False;
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if (theToProbe)
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{
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isDone = aCtx->Probe (theFile.ToCString(), theProgress);
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}
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else
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{
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isDone = aCtx->Read (theFile.ToCString(), theProgress);
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}
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if (!aCtx->FileComments().IsEmpty())
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{
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myMetadata.Add ("Comments", aCtx->FileComments());
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}
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for (NCollection_IndexedMap<TCollection_AsciiString>::Iterator aFileIter (aCtx->ExternalFiles()); aFileIter.More(); aFileIter.Next())
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{
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myExternalFiles.Add (aFileIter.Value());
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}
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return isDone;
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}
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