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e463b2f685
Added new enumeration Graphic3d_DisplayPriority. Graphic3d_Layer now defines a fixed-length array of priorities. Properties Graphic3d_CStructure::Id, Priority, PreviousPriority have been wrapped into methods.
150 lines
5.0 KiB
C++
Executable File
150 lines
5.0 KiB
C++
Executable File
// Created by: GG
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2013 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 <V3d_Plane.hxx>
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#include <Graphic3d_Group.hxx>
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#include <Graphic3d_AspectFillArea3d.hxx>
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#include <Graphic3d_ArrayOfQuadrangles.hxx>
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#include <gp_Pln.hxx>
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#include <V3d_Viewer.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(V3d_Plane,Standard_Transient)
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// =======================================================================
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// function : V3d_Plane
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// purpose :
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// =======================================================================
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V3d_Plane::V3d_Plane (const Standard_Real theA,
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const Standard_Real theB,
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const Standard_Real theC,
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const Standard_Real theD)
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: myGraphicStructure(),
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myPlane (new Graphic3d_ClipPlane (gp_Pln (theA, theB, theC, theD)))
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{
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}
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// =======================================================================
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// function : V3d_Plane
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// purpose :
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// =======================================================================
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void V3d_Plane::SetPlane (const Standard_Real theA,
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const Standard_Real theB,
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const Standard_Real theC,
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const Standard_Real theD)
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{
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myPlane->SetEquation (gp_Pln (theA, theB, theC, theD));
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if (IsDisplayed())
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{
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Update();
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}
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}
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// =======================================================================
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// function : Display
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// purpose :
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// =======================================================================
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void V3d_Plane::Display (const Handle(V3d_View)& theView,
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const Quantity_Color& theColor)
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{
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Handle(V3d_Viewer) aViewer = theView->Viewer();
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if (!myGraphicStructure.IsNull())
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{
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myGraphicStructure->Clear();
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}
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myGraphicStructure = new Graphic3d_Structure (aViewer->StructureManager());
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Handle(Graphic3d_Group) aGroup = myGraphicStructure->NewGroup();
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Handle(Graphic3d_AspectFillArea3d) anAsp = new Graphic3d_AspectFillArea3d();
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Graphic3d_MaterialAspect aPlastic (Graphic3d_NameOfMaterial_Plastified);
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aPlastic.SetColor (theColor);
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aPlastic.SetTransparency (0.5);
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anAsp->SetFrontMaterial (aPlastic);
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anAsp->SetInteriorStyle (Aspect_IS_HATCH);
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anAsp->SetHatchStyle (new Graphic3d_HatchStyle (Aspect_HS_GRID_DIAGONAL_WIDE));
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aGroup->SetGroupPrimitivesAspect (anAsp);
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const Standard_ShortReal aSize = (Standard_ShortReal)(0.5*aViewer->DefaultViewSize());
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const Standard_ShortReal anOffset = aSize/5000.0f;
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Handle(Graphic3d_ArrayOfQuadrangles) aPrims = new Graphic3d_ArrayOfQuadrangles(4);
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aPrims->AddVertex (-aSize,-aSize, anOffset);
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aPrims->AddVertex (-aSize, aSize, anOffset);
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aPrims->AddVertex ( aSize, aSize, anOffset);
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aPrims->AddVertex ( aSize,-aSize, anOffset);
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aGroup->AddPrimitiveArray(aPrims);
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myGraphicStructure->SetDisplayPriority (Graphic3d_DisplayPriority_Bottom);
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myGraphicStructure->Display();
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Update();
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}
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// =======================================================================
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// function : Erase
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// purpose :
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// =======================================================================
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void V3d_Plane::Erase()
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{
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if (!myGraphicStructure.IsNull())
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{
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myGraphicStructure->Erase();
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}
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}
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// =======================================================================
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// function : Plane
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// purpose :
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// =======================================================================
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void V3d_Plane::Plane (Standard_Real& theA, Standard_Real& theB, Standard_Real& theC, Standard_Real& theD) const
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{
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const Graphic3d_ClipPlane::Equation& anEquation = myPlane->GetEquation();
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theA = anEquation[0];
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theB = anEquation[1];
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theC = anEquation[2];
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theD = anEquation[3];
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}
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// =======================================================================
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// function : IsDisplayed
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// purpose :
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// =======================================================================
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Standard_Boolean V3d_Plane::IsDisplayed() const
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{
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if (myGraphicStructure.IsNull())
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{
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return Standard_False;
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}
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return myGraphicStructure->IsDisplayed();
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}
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// =======================================================================
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// function : Update
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// purpose :
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// =======================================================================
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void V3d_Plane::Update()
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{
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if (myGraphicStructure.IsNull())
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{
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return;
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}
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const gp_Pln aGeomPln = myPlane->ToPlane();
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gp_Trsf aTransform;
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aTransform.SetTransformation (aGeomPln.Position());
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aTransform.Invert();
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myGraphicStructure->SetTransformation (new TopLoc_Datum3D (aTransform));
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}
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