src/SketcherPrs/SketcherPrs_Angle.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_Angle.cpp
   4 // Created:     20 August 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_Angle.h"
   8 #include "SketcherPrs_Tools.h"
   9
  10 #include <SketchPlugin_ConstraintAngle.h>
  11 #include <SketchPlugin_Constraint.h>
  12
  13 #include <GeomAPI_Edge.h>
  14 #include <GeomAPI_Lin.h>
  15 #include <GeomDataAPI_Point2D.h>
  16
  17 #include <ModelAPI_AttributeRefAttr.h>
  18 #include <ModelAPI_AttributeDouble.h>
  19 #include <ModelAPI_AttributeInteger.h>
  20
  21 #include <TopExp.hxx>
  22 #include <BRep_Tool.hxx>
  23
  24 #include <Events_Error.h>
  25
  26 #define PI 3.1415926535897932
  27
  28 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Angle, AIS_AngleDimension);
  29 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_Angle, AIS_AngleDimension);
  30
  31 SketcherPrs_Angle::SketcherPrs_Angle(ModelAPI_Feature* theConstraint,
  32                                      const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  33 : AIS_AngleDimension(gp_Pnt(0,0,0), gp_Pnt(1,0,0), gp_Pnt(0,1,0)), myConstraint(theConstraint), myPlane(thePlane)
  34 {
  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 bool SketcherPrs_Angle::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  48                                          const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  49 {
  50   bool aReadyToDisplay = false;
  51
  52   DataPtr aData = theConstraint->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 aReadyToDisplay; // can not create a good presentation
  60
  61   AttributeRefAttrPtr anAttr1 = aData->refattr(SketchPlugin_Constraint::ENTITY_A());
  62   if (!anAttr1->isInitialized())
  63     return aReadyToDisplay;
  64
  65   AttributeRefAttrPtr anAttr2 = aData->refattr(SketchPlugin_Constraint::ENTITY_B());
  66   if (!anAttr2->isInitialized())
  67     return aReadyToDisplay;
  68
  69   // Get angle edges
  70   ObjectPtr aObj1 = anAttr1->object();
  71   ObjectPtr aObj2 = anAttr2->object();
  72
  73   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
  74   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
  75
  76   aReadyToDisplay = aShape1.get() && aShape2.get();
  77   return aReadyToDisplay;
  78 }
  79
  80 void SketcherPrs_Angle::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  81                                 const Handle(Prs3d_Presentation)& thePresentation,
  82                                 const Standard_Integer theMode)
  83 {
  84   DataPtr aData = myConstraint->data();
  85
  86   if (!IsReadyToDisplay(myConstraint, myPlane)) {
  87     Events_Error::throwException("An empty AIS presentation: SketcherPrs_Angle");
  88     return; // can not create a good presentation
  89   }
  90
  91   std::shared_ptr<ModelAPI_AttributeInteger> aTypeAttr = std::dynamic_pointer_cast<
  92       ModelAPI_AttributeInteger>(aData->attribute(SketchPlugin_ConstraintAngle::TYPE_ID()));
  93   SketcherPrs_Tools::AngleType anAngleType = (SketcherPrs_Tools::AngleType)(aTypeAttr->value());
  94
  95   // Flyout point
  96   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
  97     std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  98     (aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
  99   std::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = myPlane->to3D(aFlyoutAttr->x(), aFlyoutAttr->y());
 100
 101   AttributeRefAttrPtr anAttr1 = aData->refattr(SketchPlugin_Constraint::ENTITY_A());
 102   AttributeRefAttrPtr anAttr2 = aData->refattr(SketchPlugin_Constraint::ENTITY_B());
 103
 104   // Get angle edges
 105   ObjectPtr aObj1 = anAttr1->object();
 106   ObjectPtr aObj2 = anAttr2->object();
 107
 108   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
 109   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
 110
 111   TopoDS_Shape aTEdge1 = aShape1->impl<TopoDS_Shape>();
 112   TopoDS_Shape aTEdge2 = aShape2->impl<TopoDS_Shape>();
 113
 114   TopoDS_Edge aEdge1 = TopoDS::Edge(aTEdge1);
 115   TopoDS_Edge aEdge2 = TopoDS::Edge(aTEdge2);
 116
 117   switch (anAngleType) {
 118     case SketcherPrs_Tools::ANGLE_DIRECT: {
 119       SetGeometryOrientedAngle(true, false);
 120       SetArrowVisible(Standard_False, Standard_True);
 121       SetMeasuredGeometry(aEdge1, aEdge2);
 122     }
 123     break;
 124     case SketcherPrs_Tools::ANGLE_COMPLEMENTARY: {
 125       // to calculate center, first and end points
 126       SetGeometryOrientedAngle(false, false);
 127       SetMeasuredGeometry(aEdge1, aEdge2);
 128       gp_Pnt aCenterPnt = CenterPoint();
 129       gp_Pnt aFirstPnt = FirstPoint();
 130       gp_Pnt aSecondPnt = SecondPoint();
 131       double anEdge2Length = aCenterPnt.Distance(aSecondPnt);
 132       aSecondPnt = aCenterPnt.Translated (gp_Vec(aCenterPnt, aSecondPnt).Normalized() * (-anEdge2Length));
 133       SetArrowVisible(Standard_True, Standard_False);
 134       SetMeasuredGeometry(aFirstPnt, aCenterPnt, aSecondPnt);
 135     }
 136     break;
 137     case SketcherPrs_Tools::ANGLE_BACKWARD: {
 138       SetGeometryOrientedAngle(true, true);
 139       SetArrowVisible(Standard_False, Standard_True);
 140       SetMeasuredGeometry(aEdge1, aEdge2);
 141     }
 142     break;
 143     default:
 144       break;
 145   }
 146
 147
 148   const gp_Pnt& aCenter = CenterPoint();
 149   const gp_Pnt& aFirst = FirstPoint();
 150   const gp_Pnt& aSecond = SecondPoint();
 151
 152   gp_Dir aBisector((aFirst.XYZ() + aSecond.XYZ()) * 0.5 - aCenter.XYZ());
 153
 154   gp_Pnt aFlyPnt(aFlyoutPnt->x(), aFlyoutPnt->y(), aFlyoutPnt->z());
 155   gp_XYZ aFlyDir = aFlyPnt.XYZ() - aCenter.XYZ();
 156   double aDist = aFlyDir.Dot(aBisector.XYZ());
 157   SetFlyout(aDist);
 158
 159   // Angle value is in degrees
 160   AttributeDoublePtr aVal = aData->real(SketchPlugin_ConstraintAngle::ANGLE_VALUE_ID());
 161   SetCustomValue(aVal->value() * PI / 180.0);
 162
 163   myAspect->SetExtensionSize(myAspect->ArrowAspect()->Length());
 164   myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
 165
 166   AttributeDoublePtr aValue = myConstraint->data()->real(SketchPlugin_ConstraintAngle::ANGLE_VALUE_ID());
 167   SketcherPrs_Tools::setDisplaySpecialSymbol(this, aValue->usedParameters().size() > 0);
 168
 169   AIS_AngleDimension::Compute(thePresentationManager, thePresentation, theMode);
 170 }
 171
 172 void SketcherPrs_Angle::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 173                                                    const Standard_Integer theMode)
 174 {
 175   Standard_Integer aMode;
 176   switch (theMode) {
 177   case 0: // we should use selection of all objects
 178     aMode = 0;
 179     break;
 180   case SketcherPrs_Tools::Sel_Dimension_All:
 181     aMode = 0;
 182     break;
 183   case SketcherPrs_Tools::Sel_Dimension_Line:
 184     aMode = 1;
 185     break;
 186   case SketcherPrs_Tools::Sel_Dimension_Text:
 187     aMode = 2;
 188     break;
 189   default: {
 190     // there are own selection modes, so the others should be ignored
 191     // otherwise, the text selection appears in the viewer
 192     return;
 193   }
 194   }
 195   AIS_AngleDimension::ComputeSelection(aSelection, aMode);
 196 }