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_RTTIEXT(SketcherPrs_Tangent, SketcherPrs_SymbolPrs);
  22
  23 static Handle(Image_AlienPixMap) MyPixMap;
  24
  25 SketcherPrs_Tangent::SketcherPrs_Tangent(ModelAPI_Feature* theConstraint,
  26                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  27  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
  28 {
  29   // Init default points
  30   myPntArray = new Graphic3d_ArrayOfPoints(2);
  31   myPntArray->AddVertex(0., 0., 0.);
  32   myPntArray->AddVertex(0., 0., 0.);
  33 }
  34
  35 bool SketcherPrs_Tangent::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  36                                            const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  37 {
  38   bool aReadyToDisplay = false;
  39
  40   ObjectPtr aObj1 =
  41     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  42   ObjectPtr aObj2 =
  43     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
  44
  45   aReadyToDisplay = SketcherPrs_Tools::getShape(aObj1).get() != NULL &&
  46                     SketcherPrs_Tools::getShape(aObj2).get() != NULL;
  47
  48   return aReadyToDisplay;
  49 }
  50
  51 bool SketcherPrs_Tangent::updateIfReadyToDisplay(double theStep) const
  52 {
  53   if (!IsReadyToDisplay(myConstraint, myPlane))
  54     return false;
  55
  56   ObjectPtr aObj1 =
  57     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  58   ObjectPtr aObj2 =
  59     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  60
  61   // Compute points coordinates
  62   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  63   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
  64   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
  65   myPntArray->SetVertice(1, aP1);
  66   myPntArray->SetVertice(2, aP2);
  67   return true;
  68 }
  69
  70 void SketcherPrs_Tangent::drawLines(const Handle(Prs3d_Presentation)& thePrs,
  71                                     Quantity_Color theColor) const
  72 {
  73   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  74
  75   Handle(Graphic3d_AspectLine3d) aLineAspect =
  76     new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  77   aGroup->SetPrimitivesAspect(aLineAspect);
  78
  79   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  80   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  81
  82   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
  83   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
  84
  85   if ((aShape1.get() == NULL) || (aShape2.get() == NULL))
  86     return;
  87   drawShape(aShape1, thePrs);
  88   drawShape(aShape2, thePrs);
  89 }
  90