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4178b3531b
STL Reader and Writer tools have been refactored to improve performance and usability: - Basic reading of STL file is separated to abstract class RWStl_Reader which is not bound to particular data structures; the target data model can be bound via inheritance. - RWStl package uses class Poly_Triangulation to represent triangular mesh. - Obsolete data structures and tools (packages StlMesh and StlTransfer) are removed.
105 lines
4.0 KiB
C++
105 lines
4.0 KiB
C++
// Created on: 2004-06-10
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// Created by: Alexander SOLOVYOV
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// Copyright (c) 2004-2014 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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#ifndef _XSDRAWSTLVRML_DataSource_HeaderFile
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#define _XSDRAWSTLVRML_DataSource_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <TColStd_PackedMapOfInteger.hxx>
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#include <TColStd_HArray2OfInteger.hxx>
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#include <TColStd_HArray2OfReal.hxx>
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#include <MeshVS_DataSource.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Integer.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <MeshVS_EntityType.hxx>
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#include <Standard_Address.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <Standard_Real.hxx>
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#include <Poly_Triangulation.hxx>
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class XSDRAWSTLVRML_DataSource;
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DEFINE_STANDARD_HANDLE(XSDRAWSTLVRML_DataSource, MeshVS_DataSource)
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//! The sample DataSource for working with STLMesh_Mesh
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class XSDRAWSTLVRML_DataSource : public MeshVS_DataSource
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{
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public:
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//! Constructor
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Standard_EXPORT XSDRAWSTLVRML_DataSource(const Handle(Poly_Triangulation)& aMesh);
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//! Returns geometry information about node ( if IsElement is False ) or element ( IsElement is True )
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//! by co-ordinates. For element this method must return all its nodes co-ordinates in the strict order: X, Y, Z and
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//! with nodes order is the same as in wire bounding the face or link. NbNodes is number of nodes of element.
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//! It is recommended to return 1 for node. Type is an element type.
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Standard_EXPORT Standard_Boolean GetGeom (const Standard_Integer ID, const Standard_Boolean IsElement, TColStd_Array1OfReal& Coords, Standard_Integer& NbNodes, MeshVS_EntityType& Type) const Standard_OVERRIDE;
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//! This method is similar to GetGeom, but returns only element or node type. This method is provided for
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//! a fine performance.
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Standard_EXPORT Standard_Boolean GetGeomType (const Standard_Integer ID, const Standard_Boolean IsElement, MeshVS_EntityType& Type) const Standard_OVERRIDE;
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//! This method returns by number an address of any entity which represents element or node data structure.
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Standard_EXPORT Standard_Address GetAddr (const Standard_Integer ID, const Standard_Boolean IsElement) const Standard_OVERRIDE;
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//! This method returns information about what node this element consist of.
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Standard_EXPORT virtual Standard_Boolean GetNodesByElement (const Standard_Integer ID, TColStd_Array1OfInteger& NodeIDs, Standard_Integer& NbNodes) const Standard_OVERRIDE;
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//! This method returns map of all nodes the object consist of.
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Standard_EXPORT const TColStd_PackedMapOfInteger& GetAllNodes() const Standard_OVERRIDE;
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//! This method returns map of all elements the object consist of.
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Standard_EXPORT const TColStd_PackedMapOfInteger& GetAllElements() const Standard_OVERRIDE;
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//! This method calculates normal of face, which is using for correct reflection presentation.
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//! There is default method, for advance reflection this method can be redefined.
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Standard_EXPORT virtual Standard_Boolean GetNormal (const Standard_Integer Id, const Standard_Integer Max, Standard_Real& nx, Standard_Real& ny, Standard_Real& nz) const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(XSDRAWSTLVRML_DataSource,MeshVS_DataSource)
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protected:
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private:
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Handle(Poly_Triangulation) myMesh;
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TColStd_PackedMapOfInteger myNodes;
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TColStd_PackedMapOfInteger myElements;
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Handle(TColStd_HArray2OfInteger) myElemNodes;
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Handle(TColStd_HArray2OfReal) myNodeCoords;
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Handle(TColStd_HArray2OfReal) myElemNormals;
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};
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#endif // _XSDRAWSTLVRML_DataSource_HeaderFile
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