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https://git.dev.opencascade.org/repos/occt.git
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a2176e6524
Added Qt sample OCCTOverview providing examples of use of OCCT API with relevant code and demonstration of results in the viewer. Off-topic: some unused images are removed from dox/introduction/images/
89 lines
3.6 KiB
C++
89 lines
3.6 KiB
C++
// Copyright (c) 2020 OPEN CASCADE SAS
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//
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// This file is part of the examples of the Open CASCADE Technology software library.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
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#include "Sample2D_Image.h"
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#include <AIS_InteractiveContext.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepBuilderAPI_MakeWire.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <gp_Pnt.hxx>
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#include <Graphic3d_Texture1D.hxx>
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#include <Graphic3d_Texture1Dsegment.hxx>
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#include <Graphic3d_Texture2Dmanual.hxx>
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#include <Image_AlienPixMap.hxx>
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#include <Prs3d_ShadingAspect.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Wire.hxx>
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Sample2D_Image::Sample2D_Image (const TCollection_AsciiString& theFileName,
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const Standard_Real theX,
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const Standard_Real theY,
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const Standard_Real theScale)
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: AIS_Shape (TopoDS_Shape()),
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myFilename (theFileName),
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myX (theX),
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myY (theY),
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myScale (theScale)
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{
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//
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}
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void Sample2D_Image::MakeShape()
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{
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Standard_Real coeff = 1.0;
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Handle(Image_AlienPixMap) anImage = new Image_AlienPixMap();
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if (anImage->Load (myFilename))
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{
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coeff = Standard_Real(anImage->Height()) / Standard_Real(anImage->Width()) * myScale;
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}
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TopoDS_Edge E1 = BRepBuilderAPI_MakeEdge (gp_Pnt(myX, myY, 0.),
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gp_Pnt(100 * myScale + myX, myY, 0.));
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TopoDS_Edge E2 = BRepBuilderAPI_MakeEdge (gp_Pnt(100 * myScale + myX, myY, 0.),
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gp_Pnt(100 * myScale + myX, 100 * coeff + myY, 0.));
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TopoDS_Edge E3 = BRepBuilderAPI_MakeEdge (gp_Pnt(100 * myScale + myX, 100 * coeff + myY, 0.),
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gp_Pnt(myX, 100 * coeff + myY, 0.));
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TopoDS_Edge E4 = BRepBuilderAPI_MakeEdge (gp_Pnt(myX, 100 * coeff + myY, 0.),
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gp_Pnt(myX, myY, 0.));
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TopoDS_Wire anImageBounds = BRepBuilderAPI_MakeWire(E1, E2, E3, E4);
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myFace = BRepBuilderAPI_MakeFace(gp_Pln(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1)), anImageBounds);
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}
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void Sample2D_Image::SetContext (const Handle(AIS_InteractiveContext)& theContext)
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{
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if (theContext.IsNull() || theContext->CurrentViewer().IsNull())
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{
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AIS_InteractiveObject::SetContext (theContext);
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return;
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}
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AIS_InteractiveObject::SetContext (theContext);
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MakeShape();
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this->Set(TopoDS_Shape(myFace));
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myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());
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Handle(Graphic3d_Texture2Dmanual) aTexture = new Graphic3d_Texture2Dmanual(myFilename);
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aTexture->DisableModulate();
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myDrawer->ShadingAspect()->Aspect()->SetTextureMap (aTexture);
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myDrawer->ShadingAspect()->Aspect()->SetTextureMapOn();
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}
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