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5ad8c033aa
1) Remove duplicating presentation algorithms for shapes StdPrs_WFShape, StdPrs_WFDeflectionShape. 2) Rewrite Prs3d_WFShape to use deflection for non-triangulated shapes and rename it to StdPrs_WFShape. 3) Revise and correct references in code. 4) Rename StdPrs_ToolShadedShape to StdPrs_ToolTriangulatedShape (reused in StdPrs_WFShape, StdPrs_ShadedShape). 5) Add StdPrs_BndBox for drawing bounding box presentation. 6) Implemented on-triangulation isoline builder. 7) Add option -isoontriangulation to vaspects command to enable on-triangulation isoline builder for shape. 8) Drawer's maximum UV parameter value is taken into account in isolines calculation correctly. 9) Add option -setMaxParamValue to vaspects command to change drawer's maximum UV parameter value.
151 lines
8.1 KiB
C++
151 lines
8.1 KiB
C++
// Created on: 2014-10-14
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// Created by: Anton POLETAEV
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// Copyright (c) 2013-2014 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 _StdPrs_Isolines_H__
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#define _StdPrs_Isolines_H__
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#include <BRepAdaptor_HSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <Prs3d_Drawer.hxx>
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#include <Prs3d_Presentation.hxx>
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#include <Prs3d_LineAspect.hxx>
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#include <Prs3d_Root.hxx>
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#include <Prs3d_NListOfSequenceOfPnt.hxx>
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#include <Poly_Triangulation.hxx>
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#include <StdPrs_ToolTriangulatedShape.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <TColStd_SequenceOfReal.hxx>
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class Poly_Triangle;
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class TopoDS_Face;
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class TopLoc_Location;
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//! Tool for computing isoline representation for a face or surface.
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//! Depending on a flags set to the given Prs3d_Drawer instance, on-surface (is used
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//! by default) or on-triangulation isoline builder algorithm will be used.
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//! If the given shape is not triangulated, on-surface isoline builder will be applied
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//! regardless of Prs3d_Drawer flags.
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class StdPrs_Isolines : public Prs3d_Root
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{
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public:
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//! Computes isolines presentation for a TopoDS face.
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//! This method chooses proper version of isoline builder algorithm : on triangulation
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//! or surface depending on the flag passed from Prs3d_Drawer attributes.
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//! This method is a default way to display isolines for a given TopoDS face.
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//! @param thePresentation [in] the presentation.
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//! @param theFace [in] the face.
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//! @param theDrawer [in] the display settings.
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//! @param theDeflection [in] the deflection for isolines-on-surface version.
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inline static void Add (const Handle(Prs3d_Presentation)& thePresentation,
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const TopoDS_Face& theFace,
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const Handle(Prs3d_Drawer)& theDrawer,
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const Standard_Real theDeflection)
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{
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if (theDrawer->IsoOnTriangulation() && StdPrs_ToolTriangulatedShape::IsTriangulated (theFace))
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{
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AddOnTriangulation (thePresentation, theFace, theDrawer);
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}
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else
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{
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AddOnSurface (thePresentation, theFace, theDrawer, theDeflection);
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}
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}
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//! Computes isolines on triangulation and adds them to a presentation.
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//! @param thePresentation [in] the presentation.
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//! @param theFace [in] the face.
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//! @param theDrawer [in] the display settings.
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Standard_EXPORT static void AddOnTriangulation (const Handle(Prs3d_Presentation)& thePresentation,
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const TopoDS_Face& theFace,
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const Handle(Prs3d_Drawer)& theDrawer);
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//! Computes isolines on triangulation and adds them to a presentation.
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//! @param thePresentation [in] the presentation.
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//! @param theTriangulation [in] the triangulation.
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//! @param theSurface [in] the definition of triangulated surface. The surface
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//! adapter is used to precisely evaluate isoline points using surface
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//! law and fit them on triangulation. If NULL is passed, the method will
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//! use linear interpolation of triangle node's UV coordinates to evaluate
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//! isoline points.
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//! @param theLocation [in] the location transformation defined for triangulation (surface).
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//! @param theDrawer [in] the display settings.
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//! @param theUIsoParams [in] the parameters of u isolines to compute.
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//! @param theVIsoParams [in] the parameters of v isolines to compute.
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Standard_EXPORT static void AddOnTriangulation (const Handle(Prs3d_Presentation)& thePresentation,
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const Handle(Poly_Triangulation)& theTriangulation,
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const Handle(Geom_Surface)& theSurface,
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const TopLoc_Location& theLocation,
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const Handle(Prs3d_Drawer)& theDrawer,
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const TColStd_SequenceOfReal& theUIsoParams,
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const TColStd_SequenceOfReal& theVIsoParams);
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//! Computes isolines on surface and adds them to presentation.
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//! @param thePresentation [in] the presentation.
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//! @param theFace [in] the face.
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//! @param theDrawer [in] the display settings.
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//! @param theDeflection [in] the deflection value.
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Standard_EXPORT static void AddOnSurface (const Handle(Prs3d_Presentation)& thePresentation,
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const TopoDS_Face& theFace,
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const Handle(Prs3d_Drawer)& theDrawer,
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const Standard_Real theDeflection);
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//! Computes isolines on surface and adds them to presentation.
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//! @param thePresentation [in] the presentation.
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//! @param theSurface [in] the surface.
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//! @param theDrawer [in] the display settings.
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//! @param theDeflection [in] the deflection value.
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//! @param theUIsoParams [in] the parameters of u isolines to compute.
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//! @param theVIsoParams [in] the parameters of v isolines to compute.
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Standard_EXPORT static void AddOnSurface (const Handle(Prs3d_Presentation)& thePresentation,
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const Handle(BRepAdaptor_HSurface)& theSurface,
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const Handle(Prs3d_Drawer)& theDrawer,
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const Standard_Real theDeflection,
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const TColStd_SequenceOfReal& theUIsoParams,
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const TColStd_SequenceOfReal& theVIsoParams);
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//! Evalute sequence of parameters for drawing uv isolines for a given face.
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//! @param theFace [in] the face.
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//! @param theNbIsoU [in] the number of u isolines.
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//! @param theNbIsoV [in] the number of v isolines.
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//! @param theUVLimit [in] the u, v parameter value limit.
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//! @param theUIsoParams [out] the sequence of u isoline parameters.
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//! @param theVIsoParams [out] the sequence of v isoline parameters.
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Standard_EXPORT static void UVIsoParameters (const TopoDS_Face& theFace,
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const Standard_Integer theNbIsoU,
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const Standard_Integer theNbIsoV,
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const Standard_Real theUVLimit,
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TColStd_SequenceOfReal& theUIsoParams,
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TColStd_SequenceOfReal& theVIsoParams);
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private:
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//! Find isoline segment on a triangle.
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//! @param theSurface [in] the surface.
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//! @param theIsoline [in] the isoline in uv coordinates.
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//! @param theNodesXYZ [in] the XYZ coordinates of triangle nodes.
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//! @param theNodesUV [in] the UV coordinates of triangle nodes.
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//! @param theSegment [out] the XYZ points of crossed triangle's links.
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//! @return TRUE if the isoline passes through the triangle.
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Standard_EXPORT static Standard_Boolean findSegmentOnTriangulation (const Handle(Geom_Surface)& theSurface,
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const gp_Lin2d& theIsoline,
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const gp_Pnt* theNodesXYZ,
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const gp_Pnt2d* theNodesUV,
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gp_Pnt* theSegment);
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};
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#endif // _StdPrs_Isolines_H__
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