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(ModelAPI_Feature* theConstraint,
  27                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  28  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
  29 {
  30   // Init default points
  31   myPntArray = new Graphic3d_ArrayOfPoints(2);
  32   myPntArray->AddVertex(0., 0., 0.);
  33   myPntArray->AddVertex(0., 0., 0.);
  34 }
  35
  36 bool SketcherPrs_Tangent::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  37                                            const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  38 {
  39   bool aReadyToDisplay = false;
  40
  41   ObjectPtr aObj1 =
  42     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  43   ObjectPtr aObj2 =
  44     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
  45
  46   aReadyToDisplay = SketcherPrs_Tools::getShape(aObj1).get() != NULL &&
  47                     SketcherPrs_Tools::getShape(aObj2).get() != NULL;
  48
  49   return aReadyToDisplay;
  50 }
  51
  52 bool SketcherPrs_Tangent::updateIfReadyToDisplay(double theStep) const
  53 {
  54   if (!IsReadyToDisplay(myConstraint, myPlane))
  55     return false;
  56
  57   ObjectPtr aObj1 =
  58     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  59   ObjectPtr aObj2 =
  60     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  61
  62   // Compute points coordinates
  63   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  64   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
  65   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
  66   myPntArray->SetVertice(1, aP1);
  67   myPntArray->SetVertice(2, aP2);
  68   return true;
  69 }
  70
  71 void SketcherPrs_Tangent::drawLines(const Handle(Prs3d_Presentation)& thePrs,
  72                                     Quantity_Color theColor) const
  73 {
  74   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  75
  76   Handle(Graphic3d_AspectLine3d) aLineAspect =
  77     new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  78   aGroup->SetPrimitivesAspect(aLineAspect);
  79
  80   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  81   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  82
  83   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
  84   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
  85
  86   if ((aShape1.get() == NULL) || (aShape2.get() == NULL))
  87     return;
  88   drawShape(aShape1, thePrs);
  89   drawShape(aShape2, thePrs);
  90 }
  91