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