src/SketcherPrs/SketcherPrs_LengthDimension.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_LengthDimension.cpp
   4 // Created:     27 March 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_LengthDimension.h"
   8 #include "SketcherPrs_Tools.h"
   9
  10 #include <SketchPlugin_Constraint.h>
  11 #include <SketchPlugin_ConstraintLength.h>
  12 #include <SketchPlugin_ConstraintDistance.h>
  13 #include <SketchPlugin_Line.h>
  14 #include <SketchPlugin_Point.h>
  15 #include <SketchPlugin_Circle.h>
  16
  17 #include <GeomDataAPI_Point2D.h>
  18 #include <GeomAPI_Pnt.h>
  19 #include <GeomAPI_XYZ.h>
  20 #include <GeomAPI_Pnt2d.h>
  21 #include <GeomAPI_Lin2d.h>
  22
  23 #include <ModelAPI_Data.h>
  24
  25
  26 static const gp_Pnt MyDefStart(0,0,0);
  27 static const gp_Pnt MyDefEnd(1,0,0);
  28 static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
  29
  30 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_LengthDimension, AIS_LengthDimension);
  31 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
  32
  33 SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
  34                         const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  35 : AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
  36 myConstraint(theConstraint), myPlane(thePlane)
  37 {
  38   myAspect = new Prs3d_DimensionAspect();
  39   myAspect->MakeArrows3d(false);
  40   myAspect->MakeText3d(false);
  41   myAspect->MakeTextShaded(false);
  42   myAspect->MakeUnitsDisplayed(false);
  43   myAspect->TextAspect()->SetHeight(MyTextHeight);
  44   myAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
  45
  46   SetSelToleranceForText2d(MyTextHeight);
  47   SetDimensionAspect(myAspect);
  48 }
  49
  50
  51 void SketcherPrs_LengthDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  52                                  const Handle(Prs3d_Presentation)& thePresentation,
  53                                  const Standard_Integer theMode)
  54 {
  55   gp_Pnt aPnt1, aPnt2;
  56   if (!getPoints(aPnt1, aPnt2))
  57     return;
  58   DataPtr aData = myConstraint->data();
  59
  60   AttributePtr aFlyOutAttribute = aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
  61   if (!aFlyOutAttribute->isInitialized()) {
  62     return; // not possible to show length because points are not defined
  63   }
  64   std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr =
  65     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFlyOutAttribute);
  66   std::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = myPlane->to3D(aFlyOutAttr->x(), aFlyOutAttr->y());
  67   gp_Pnt aFlyPnt = aFlyoutPnt->impl<gp_Pnt>();
  68
  69   double aDistance = aPnt1.Distance(aPnt2);
  70
  71   double aFlyout = 0;
  72   double aDist = 0.0;
  73   if (aDistance < Precision::Confusion())
  74     aDist = aPnt1.Distance(aFlyPnt);
  75   else {
  76     gp_Lin aLine(aPnt1, gp_Vec(aPnt1, aPnt2));
  77     aDist = aLine.Distance(aFlyPnt);
  78   }
  79
  80   gp_XYZ aLineDir = aPnt2.XYZ().Subtracted(aPnt1.XYZ());
  81   gp_XYZ aFOutDir = aFlyPnt.XYZ().Subtracted(aPnt1.XYZ());
  82   gp_XYZ aNorm = myPlane->norm()->xyz()->impl<gp_XYZ>();
  83   if (aLineDir.Crossed(aFOutDir).Dot(aNorm) < 0)
  84     aDist = -aDist;
  85   aFlyout = aDist;
  86
  87   SetFlyout(aFlyout);
  88   SetMeasuredGeometry(aPnt1, aPnt2, myPlane->impl<gp_Ax3>());
  89   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  90 }
  91
  92 bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2) const
  93 {
  94   DataPtr aData = myConstraint->data();
  95   if (myConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
  96     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  97       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  98       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  99     if (!anAttr)
 100       return false;
 101
 102     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 103     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
 104       return false;
 105
 106     DataPtr aLineData = aFeature->data();
 107     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 108       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 109       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 110     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 111       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 112       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 113     thePnt1 = myPlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 114     thePnt2 = myPlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 115     return true;
 116
 117   } else if (myConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
 118     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 119         aData, SketchPlugin_Constraint::ENTITY_A());
 120     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 121         aData, SketchPlugin_Constraint::ENTITY_B());
 122
 123     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 124     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 125     if (aPoint_A && aPoint_B) {
 126       aPnt_A = aPoint_A->pnt();
 127       aPnt_B = aPoint_B->pnt();
 128     } else if (!aPoint_A && aPoint_B) {
 129       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 130           aData, SketchPlugin_Constraint::ENTITY_A());
 131       if (aLine) {
 132         aPnt_B = aPoint_B->pnt();
 133         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 134       }
 135     } else if (aPoint_A && !aPoint_B) {
 136       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 137           aData, SketchPlugin_Constraint::ENTITY_B());
 138       if (aLine) {
 139         aPnt_A = aPoint_A->pnt();
 140         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 141       }
 142     }
 143     if (!aPnt_A || !aPnt_B)
 144       return false;
 145
 146     std::shared_ptr<GeomAPI_Pnt> aPoint1 = myPlane->to3D(aPnt_A->x(), aPnt_A->y());
 147     std::shared_ptr<GeomAPI_Pnt> aPoint2 = myPlane->to3D(aPnt_B->x(), aPnt_B->y());
 148     thePnt1 = aPoint1->impl<gp_Pnt>();
 149     thePnt2 = aPoint2->impl<gp_Pnt>();
 150     return true;
 151   }
 152   return false;
 153 }
 154
 155
 156
 157 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 158                                                    const Standard_Integer theMode)
 159 {
 160   Standard_Integer aMode;
 161   switch (theMode) {
 162   case SketcherPrs_Tools::Sel_Dimension_All:
 163     aMode = 0;
 164     break;
 165   case SketcherPrs_Tools::Sel_Dimension_Line:
 166     aMode = 1;
 167     break;
 168   case SketcherPrs_Tools::Sel_Dimension_Text:
 169     aMode = 2;
 170     break;
 171   default:
 172     aMode = theMode;
 173   }
 174   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 175 }