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(SketcherPrs_Tools::getDefaultTextHeight());
  44   myAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
  45
  46   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
  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
  59   // compute flyout distance
  60   double aD = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
  61   SetFlyout(SketcherPrs_Tools::getFlyoutDistance(myConstraint));
  62   SetMeasuredGeometry(aPnt1, aPnt2, myPlane->impl<gp_Ax3>());
  63
  64   // Update variable aspect parameters (depending on viewer scale)
  65   myAspect->SetExtensionSize(myAspect->ArrowAspect()->Length());
  66   myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
  67   // The value of vertical aligment is sometimes changed
  68   myAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
  69
  70   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  71 }
  72
  73 bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2)
  74 {
  75   DataPtr aData = myConstraint->data();
  76   if (myConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
  77     // The constraint is length
  78     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  79       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  80       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  81     if (!anAttr)
  82       return false;
  83
  84     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
  85     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
  86       return false;
  87
  88     // Get geometry of the object
  89     DataPtr aLineData = aFeature->data();
  90     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
  91       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  92       (aLineData->attribute(SketchPlugin_Line::START_ID()));
  93     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
  94       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  95       (aLineData->attribute(SketchPlugin_Line::END_ID()));
  96     thePnt1 = myPlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
  97     thePnt2 = myPlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
  98     return true;
  99
 100   } else if (myConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
 101     // The constraint is distance
 102     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 103         aData, SketchPlugin_Constraint::ENTITY_A(), myPlane);
 104     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 105         aData, SketchPlugin_Constraint::ENTITY_B(), myPlane);
 106
 107     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 108     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 109     if (aPoint_A && aPoint_B) {
 110       // Both objects are points
 111       aPnt_A = aPoint_A->pnt();
 112       aPnt_B = aPoint_B->pnt();
 113     } else if (!aPoint_A && aPoint_B) {
 114       // First object is line
 115       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 116           aData, SketchPlugin_Constraint::ENTITY_A());
 117       if (aLine) {
 118         aPnt_B = aPoint_B->pnt();
 119         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 120       }
 121     } else if (aPoint_A && !aPoint_B) {
 122       // Second object is line
 123       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 124           aData, SketchPlugin_Constraint::ENTITY_B());
 125       if (aLine) {
 126         aPnt_A = aPoint_A->pnt();
 127         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 128       }
 129     }
 130     if (!aPnt_A || !aPnt_B) // Objects not found
 131       return false;
 132
 133     // Get points from these objects
 134     std::shared_ptr<GeomAPI_Pnt> aPoint1 = myPlane->to3D(aPnt_A->x(), aPnt_A->y());
 135     std::shared_ptr<GeomAPI_Pnt> aPoint2 = myPlane->to3D(aPnt_B->x(), aPnt_B->y());
 136     thePnt1 = aPoint1->impl<gp_Pnt>();
 137     thePnt2 = aPoint2->impl<gp_Pnt>();
 138     return true;
 139   }
 140   return false;
 141 }
 142
 143
 144
 145 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 146                                                    const Standard_Integer theMode)
 147 {
 148   // Map the application selection modes to standard ones
 149   Standard_Integer aMode;
 150   switch (theMode) {
 151   case 0: // we should use selection of all objects
 152     aMode = 0;
 153     break;
 154   case SketcherPrs_Tools::Sel_Dimension_All:
 155     aMode = 0;
 156     break;
 157   case SketcherPrs_Tools::Sel_Dimension_Line:
 158     aMode = 1;
 159     break;
 160   case SketcherPrs_Tools::Sel_Dimension_Text:
 161     aMode = 2;
 162     break;
 163   default: {
 164     // there are own selection modes, so the others should be ignored
 165     // otherwise, the text selection appears in the viewer
 166     return;
 167   }
 168   }
 169   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
 170   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 171 }