src/SketcherPrs/SketcherPrs_Tangent.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_Tangent.cpp
   4 // Created:     16 February 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_Tangent.h"
   8 #include "SketcherPrs_Tools.h"
   9 #include "SketcherPrs_PositionMgr.h"
  10
  11 #include <GeomAPI_Curve.h>
  12
  13 #include <SketchPlugin_Constraint.h>
  14
  15 #include <GeomAdaptor_Curve.hxx>
  16 #include <Prs3d_Root.hxx>
  17 #include <Graphic3d_AspectLine3d.hxx>
  18 #include <StdPrs_DeflectionCurve.hxx>
  19
  20
  21 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Tangent, SketcherPrs_SymbolPrs);
  22 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_Tangent, SketcherPrs_SymbolPrs);
  23
  24 static Handle(Image_AlienPixMap) MyPixMap;
  25
  26 SketcherPrs_Tangent::SketcherPrs_Tangent(SketchPlugin_Constraint* theConstraint,
  27                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  28  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
  29 {
  30   myPntArray = new Graphic3d_ArrayOfPoints(2);
  31   myPntArray->AddVertex(0., 0., 0.);
  32   myPntArray->AddVertex(0., 0., 0.);
  33 }
  34
  35 bool SketcherPrs_Tangent::updatePoints(double theStep) const
  36 {
  37   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  38   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  39   if (SketcherPrs_Tools::getShape(aObj1).get() == NULL)
  40     return false;
  41   if (SketcherPrs_Tools::getShape(aObj2).get() == NULL)
  42     return false;
  43
  44   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  45   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
  46   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
  47   myPntArray->SetVertice(1, aP1);
  48   myPntArray->SetVertice(2, aP2);
  49   return true;
  50 }
  51
  52 void SketcherPrs_Tangent::drawLines(const Handle(Prs3d_Presentation)& thePrs, Quantity_Color theColor) const
  53 {
  54   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  55
  56   Handle(Graphic3d_AspectLine3d) aLineAspect = new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  57   aGroup->SetPrimitivesAspect(aLineAspect);
  58
  59   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  60   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  61
  62   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
  63   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
  64
  65   if ((aShape1.get() == NULL) || (aShape2.get() == NULL))
  66     return;
  67
  68   std::shared_ptr<GeomAPI_Curve> aCurve1 = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape1));
  69   std::shared_ptr<GeomAPI_Curve> aCurve2 = std::shared_ptr<GeomAPI_Curve>(new GeomAPI_Curve(aShape2));
  70   if (aCurve1->isCircle() && aCurve2->isLine()) {
  71     addLine(aGroup, SketchPlugin_Constraint::ENTITY_B());
  72     GeomAdaptor_Curve aAdaptor(aCurve1->impl<Handle(Geom_Curve)>(), aCurve1->startParam(), aCurve1->endParam());
  73     StdPrs_DeflectionCurve::Add(thePrs,aAdaptor,myDrawer);
  74   } else if (aCurve1->isLine() && aCurve2->isCircle()) {
  75     addLine(aGroup, SketchPlugin_Constraint::ENTITY_A());
  76     GeomAdaptor_Curve aAdaptor(aCurve2->impl<Handle(Geom_Curve)>(), aCurve2->startParam(), aCurve2->endParam());
  77     StdPrs_DeflectionCurve::Add(thePrs,aAdaptor,myDrawer);
  78   } else {
  79     // Both curves are arcs
  80     GeomAdaptor_Curve aAdaptor1(aCurve1->impl<Handle(Geom_Curve)>(), aCurve1->startParam(), aCurve1->endParam());
  81     StdPrs_DeflectionCurve::Add(thePrs, aAdaptor1, myDrawer);
  82     GeomAdaptor_Curve aAdaptor2(aCurve2->impl<Handle(Geom_Curve)>(), aCurve2->startParam(), aCurve2->endParam());
  83     StdPrs_DeflectionCurve::Add(thePrs, aAdaptor2, myDrawer);
  84   }
  85 }
  86