src/SketcherPrs/SketcherPrs_Radius.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_Radius.cpp
   4 // Created:     26 March 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_Radius.h"
   8 #include "SketcherPrs_Tools.h"
   9
  10 #include <SketchPlugin_ConstraintRadius.h>
  11 #include <SketchPlugin_Constraint.h>
  12 #include <SketchPlugin_Circle.h>
  13 #include <SketchPlugin_Arc.h>
  14
  15 #include <GeomDataAPI_Point2D.h>
  16 #include <GeomAPI_Pnt2d.h>
  17 #include <GeomAPI_Circ.h>
  18 #include <GeomAPI_XYZ.h>
  19 #include <ModelAPI_AttributeDouble.h>
  20
  21 #include <gp_Circ.hxx>
  22
  23 static const gp_Circ MyDefCirc(gp_Ax2(gp_Pnt(0,0,0), gp_Dir(0,0,1)), 1);
  24
  25 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Radius, AIS_RadiusDimension);
  26 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_Radius, AIS_RadiusDimension);
  27
  28 static const Standard_ExtCharacter MyEmptySymbol(' ');
  29 static const Standard_ExtCharacter MySummSymbol(0x03A3);
  30
  31 SketcherPrs_Radius::SketcherPrs_Radius(ModelAPI_Feature* theConstraint,
  32                                        const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  33 : AIS_RadiusDimension(MyDefCirc), myConstraint(theConstraint), myPlane(thePlane)
  34 {
  35   // Set default values of the presentation
  36   myAspect = new Prs3d_DimensionAspect();
  37   myAspect->MakeArrows3d(false);
  38   myAspect->MakeText3d(false);
  39   myAspect->MakeTextShaded(false);
  40   myAspect->MakeUnitsDisplayed(false);
  41   myAspect->TextAspect()->SetHeight(SketcherPrs_Tools::getDefaultTextHeight());
  42   myAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
  43
  44   SetDimensionAspect(myAspect);
  45   SetSelToleranceForText2d(SketcherPrs_Tools::getDefaultTextHeight());
  46 }
  47
  48 void SketcherPrs_Radius::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  49                                  const Handle(Prs3d_Presentation)& thePresentation,
  50                                  const Standard_Integer theMode)
  51 {
  52   DataPtr aData = myConstraint->data();
  53
  54   // Flyout point
  55   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
  56     std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  57     (aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
  58   if (!aFlyoutAttr->isInitialized())
  59     return; // can not create a good presentation
  60
  61   // Get circle
  62   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  63     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  64     (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  65   if (!anAttr) return;
  66
  67   std::shared_ptr<ModelAPI_Feature> aCyrcFeature = ModelAPI_Feature::feature(anAttr->object());
  68   double aRadius = 1;
  69   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
  70   // it is possible that circle result becomes zero, in this case the presentation should disappear
  71   // for example, it happens when circle radius is set to zero
  72   if (!aCyrcFeature)
  73     return;
  74   if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
  75     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  76         aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
  77     AttributeDoublePtr aCircRadius =
  78       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  79       aCyrcFeature->data()->attribute(SketchPlugin_Circle::RADIUS_ID()));
  80     aRadius = aCircRadius->value();
  81   } else { // arc
  82     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  83         aCyrcFeature->data()->attribute(SketchPlugin_Arc::CENTER_ID()));
  84     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
  85       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  86       (aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
  87     aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
  88   }
  89   std::shared_ptr<GeomAPI_Pnt> aCenter = myPlane->to3D(aCenterAttr->x(), aCenterAttr->y());
  90   std::shared_ptr<GeomAPI_Dir> aNormal = myPlane->normal();
  91
  92   GeomAPI_Circ aCircle(aCenter, aNormal, aRadius);
  93
  94   std::shared_ptr<GeomAPI_Pnt> anAnchor = SketcherPrs_Tools::getAnchorPoint(myConstraint, myPlane);
  95
  96   gp_Circ aCirc = aCircle.impl<gp_Circ>();
  97   gp_Pnt anAncorPnt = anAnchor->impl<gp_Pnt>();
  98   // anchor point should not coincide to the location point of the circle
  99   // OCCT does not process this case.
 100   if (anAncorPnt.Distance(aCirc.Location()) < 1e-7)
 101     return;
 102   SetMeasuredGeometry(aCirc, anAncorPnt);
 103   SetCustomValue(aRadius);
 104
 105   // Update variable aspect parameters (depending on viewer scale)
 106   double anArrowLength = myAspect->ArrowAspect()->Length();
 107    // This is not realy correct way to get viewer scale.
 108   double aViewerScale = (double) SketcherPrs_Tools::getDefaultArrowSize() / anArrowLength;
 109   double aDimensionValue = GetValue();
 110   double aTextSize = 0.0;
 111   GetValueString(aTextSize);
 112
 113   if(aTextSize > ((aDimensionValue - 2 * SketcherPrs_Tools::getArrowSize()) * aViewerScale)) {
 114     myAspect->SetTextHorizontalPosition(Prs3d_DTHP_Left);
 115     myAspect->SetArrowOrientation(Prs3d_DAO_External);
 116     myAspect->SetExtensionSize(aTextSize / aViewerScale - SketcherPrs_Tools::getArrowSize() / 2.0);
 117   } else {
 118     myAspect->SetTextHorizontalPosition(Prs3d_DTHP_Center);
 119     myAspect->SetArrowOrientation(Prs3d_DAO_Internal);
 120   }
 121   myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
 122
 123   // The value of vertical aligment is sometimes changed
 124   myAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
 125
 126   AttributeDoublePtr aValue = myConstraint->data()->real(SketchPlugin_Constraint::VALUE());
 127   std::set<std::string> aParams = aValue->usedParameters();
 128   if (aParams.size() > 0) {
 129     SetSpecialSymbol(MySummSymbol);
 130     SetDisplaySpecialSymbol(AIS_DSS_Before);
 131   }
 132   else {
 133     SetSpecialSymbol(MyEmptySymbol);
 134     SetDisplaySpecialSymbol(AIS_DSS_Before);
 135   }
 136
 137   AIS_RadiusDimension::Compute(thePresentationManager, thePresentation, theMode);
 138 }
 139
 140 void SketcherPrs_Radius::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 141                                                    const Standard_Integer theMode)
 142 {
 143   // Map the application selection modes to standard ones
 144   Standard_Integer aMode;
 145   switch (theMode) {
 146   case 0: // we should use selection of all objects
 147     aMode = 0;
 148     break;
 149   case SketcherPrs_Tools::Sel_Dimension_All:
 150     aMode = 0;
 151     break;
 152   case SketcherPrs_Tools::Sel_Dimension_Line:
 153     aMode = 1;
 154     break;
 155   case SketcherPrs_Tools::Sel_Dimension_Text:
 156     aMode = 2;
 157     break;
 158   default: {
 159     // there are own selection modes, so the others should be ignored
 160     // otherwise, the text selection appears in the viewer
 161     return;
 162   }
 163   }
 164   AIS_RadiusDimension::ComputeSelection(aSelection, aMode);
 165 }