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 #include <ModelAPI_AttributeDouble.h>
  25
  26 #include <AIS_DisplaySpecialSymbol.hxx>
  27
  28
  29 static const gp_Pnt MyDefStart(0,0,0);
  30 static const gp_Pnt MyDefEnd(1,0,0);
  31 static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
  32
  33 static const Standard_ExtCharacter MySummSymbol(0x2211);
  34
  35 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_LengthDimension, AIS_LengthDimension);
  36 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
  37
  38 SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
  39                         const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  40 : AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
  41 myConstraint(theConstraint), myPlane(thePlane)
  42 {
  43   myAspect = new Prs3d_DimensionAspect();
  44   myAspect->MakeArrows3d(false);
  45   myAspect->MakeText3d(false);
  46   myAspect->MakeTextShaded(false);
  47   myAspect->MakeUnitsDisplayed(false);
  48   myAspect->TextAspect()->SetHeight(SketcherPrs_Tools::getDefaultTextHeight());
  49   myAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
  50
  51   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
  52   SetDimensionAspect(myAspect);
  53 }
  54
  55
  56 void SketcherPrs_LengthDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  57                                  const Handle(Prs3d_Presentation)& thePresentation,
  58                                  const Standard_Integer theMode)
  59 {
  60   gp_Pnt aPnt1, aPnt2;
  61   if (!getPoints(aPnt1, aPnt2))
  62     return;
  63
  64   // compute flyout distance
  65   double aD = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
  66   SetFlyout(SketcherPrs_Tools::getFlyoutDistance(myConstraint));
  67   SetMeasuredGeometry(aPnt1, aPnt2, myPlane->impl<gp_Ax3>());
  68
  69   // Update variable aspect parameters (depending on viewer scale)
  70   myAspect->SetExtensionSize(myAspect->ArrowAspect()->Length());
  71   myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
  72   // The value of vertical aligment is sometimes changed
  73   myAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
  74
  75   AttributeDoublePtr aValue = myConstraint->data()->real(SketchPlugin_Constraint::VALUE());
  76   std::set<std::string> aParams = aValue->usedParameters();
  77   if (aParams.size() > 0) {
  78     SetSpecialSymbol(MySummSymbol);
  79     SetDisplaySpecialSymbol(AIS_DSS_Before);
  80   }
  81
  82   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  83 }
  84
  85 bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2)
  86 {
  87   DataPtr aData = myConstraint->data();
  88   if (myConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
  89     // The constraint is length
  90     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  91       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  92       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  93     if (!anAttr)
  94       return false;
  95
  96     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
  97     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
  98       return false;
  99
 100     // Get geometry of the object
 101     DataPtr aLineData = aFeature->data();
 102     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 103       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 104       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 105     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 106       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 107       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 108     thePnt1 = myPlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 109     thePnt2 = myPlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 110     return true;
 111
 112   } else if (myConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
 113     // The constraint is distance
 114     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 115         aData, SketchPlugin_Constraint::ENTITY_A(), myPlane);
 116     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 117         aData, SketchPlugin_Constraint::ENTITY_B(), myPlane);
 118
 119     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 120     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 121     if (aPoint_A && aPoint_B) {
 122       // Both objects are points
 123       aPnt_A = aPoint_A->pnt();
 124       aPnt_B = aPoint_B->pnt();
 125     } else if (!aPoint_A && aPoint_B) {
 126       // First object is line
 127       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 128           aData, SketchPlugin_Constraint::ENTITY_A());
 129       if (aLine) {
 130         aPnt_B = aPoint_B->pnt();
 131         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 132       }
 133     } else if (aPoint_A && !aPoint_B) {
 134       // Second object is line
 135       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 136           aData, SketchPlugin_Constraint::ENTITY_B());
 137       if (aLine) {
 138         aPnt_A = aPoint_A->pnt();
 139         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 140       }
 141     }
 142     if (!aPnt_A || !aPnt_B) // Objects not found
 143       return false;
 144
 145     // Get points from these objects
 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   // Map the application selection modes to standard ones
 161   Standard_Integer aMode;
 162   switch (theMode) {
 163   case 0: // we should use selection of all objects
 164     aMode = 0;
 165     break;
 166   case SketcherPrs_Tools::Sel_Dimension_All:
 167     aMode = 0;
 168     break;
 169   case SketcherPrs_Tools::Sel_Dimension_Line:
 170     aMode = 1;
 171     break;
 172   case SketcherPrs_Tools::Sel_Dimension_Text:
 173     aMode = 2;
 174     break;
 175   default: {
 176     // there are own selection modes, so the others should be ignored
 177     // otherwise, the text selection appears in the viewer
 178     return;
 179   }
 180   }
 181   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
 182   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 183 }