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 #include "SketcherPrs_DimensionStyleListener.h"
  10
  11 #include <SketchPlugin_Constraint.h>
  12 #include <SketchPlugin_ConstraintLength.h>
  13 #include <SketchPlugin_ConstraintDistance.h>
  14 #include <SketchPlugin_Line.h>
  15 #include <SketchPlugin_Point.h>
  16 #include <SketchPlugin_Circle.h>
  17
  18 #include <GeomDataAPI_Point2D.h>
  19 #include <GeomAPI_Pnt.h>
  20 #include <GeomAPI_XYZ.h>
  21 #include <GeomAPI_Pnt2d.h>
  22 #include <GeomAPI_Lin2d.h>
  23
  24 #include <ModelAPI_Data.h>
  25 #include <ModelAPI_AttributeDouble.h>
  26
  27 #include <AIS_DisplaySpecialSymbol.hxx>
  28
  29
  30 static const gp_Pnt MyDefStart(0,0,0);
  31 static const gp_Pnt MyDefEnd(1,0,0);
  32 static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
  33
  34 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_LengthDimension, AIS_LengthDimension);
  35 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
  36
  37 SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
  38                                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  39 : AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
  40   myConstraint(theConstraint),
  41   mySketcherPlane(thePlane),
  42   myFirstPoint(MyDefStart),
  43   mySecondPoint(MyDefEnd),
  44   myPlane(MyDefPln),
  45   myDistance(1),
  46   myValue(0., false, "")
  47 {
  48   SetDimensionAspect(SketcherPrs_Tools::createDimensionAspect());
  49   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
  50
  51   myStyleListener = new SketcherPrs_DimensionStyleListener();
  52 }
  53
  54 SketcherPrs_LengthDimension::~SketcherPrs_LengthDimension()
  55 {
  56   delete myStyleListener;
  57 }
  58
  59 bool SketcherPrs_LengthDimension::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  60                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  61 {
  62   gp_Pnt aPnt1, aPnt2;
  63   return readyToDisplay(theConstraint, thePlane, aPnt1, aPnt2);
  64 }
  65
  66 void SketcherPrs_LengthDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  67                                           const Handle(Prs3d_Presentation)& thePresentation,
  68                                           const Standard_Integer theMode)
  69 {
  70   gp_Pnt aPnt1, aPnt2;
  71   bool aReadyToDisplay = readyToDisplay(myConstraint, mySketcherPlane, aPnt1, aPnt2);
  72   if (aReadyToDisplay) {
  73     myFirstPoint = aPnt1;
  74     mySecondPoint = aPnt2;
  75
  76     myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
  77     myPlane = gp_Pln(mySketcherPlane->impl<gp_Ax3>());
  78
  79     DataPtr aData = myConstraint->data();
  80     AttributeDoublePtr anAttributeValue = aData->real(SketchPlugin_Constraint::VALUE());
  81     myValue.init(anAttributeValue);
  82   }
  83
  84   // compute flyout distance
  85   SetFlyout(myDistance);
  86   SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
  87
  88   // Update variable aspect parameters (depending on viewer scale)
  89   double aTextSize = 0.0;
  90   GetValueString(aTextSize);
  91   SketcherPrs_Tools::updateArrows(DimensionAspect(), GetValue(), aTextSize);
  92
  93   // Update text visualization: parameter value or parameter text
  94   myStyleListener->updateDimensions(this, myValue);
  95
  96   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  97
  98   if (!aReadyToDisplay)
  99     SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
 100                               "An empty AIS presentation: SketcherPrs_LengthDimension");
 101 }
 102
 103 bool SketcherPrs_LengthDimension::readyToDisplay(ModelAPI_Feature* theConstraint,
 104                                                  const std::shared_ptr<GeomAPI_Ax3>& thePlane,
 105                                                  gp_Pnt& thePnt1, gp_Pnt& thePnt2)
 106 {
 107   DataPtr aData = theConstraint->data();
 108   if (theConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 109     // The constraint is length
 110     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 111       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 112       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 113     if (!anAttr)
 114       return false;
 115
 116     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 117     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
 118       return false;
 119
 120     // Get geometry of the object
 121     DataPtr aLineData = aFeature->data();
 122     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 123       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 124       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 125     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 126       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 127       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 128     thePnt1 = thePlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 129     thePnt2 = thePlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 130     return true;
 131
 132   } else if (theConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
 133     // The constraint is distance
 134     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 135         aData, SketchPlugin_Constraint::ENTITY_A(), thePlane);
 136     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 137         aData, SketchPlugin_Constraint::ENTITY_B(), thePlane);
 138
 139     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 140     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 141     if (aPoint_A && aPoint_B) {
 142       // Both objects are points
 143       aPnt_A = aPoint_A->pnt();
 144       aPnt_B = aPoint_B->pnt();
 145     } else if (!aPoint_A && aPoint_B) {
 146       // First object is line
 147       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 148           aData, SketchPlugin_Constraint::ENTITY_A());
 149       if (aLine) {
 150         aPnt_B = aPoint_B->pnt();
 151         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 152       }
 153     } else if (aPoint_A && !aPoint_B) {
 154       // Second object is line
 155       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 156           aData, SketchPlugin_Constraint::ENTITY_B());
 157       if (aLine) {
 158         aPnt_A = aPoint_A->pnt();
 159         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 160       }
 161     }
 162     if (!aPnt_A || !aPnt_B) // Objects not found
 163       return false;
 164
 165     // Get points from these object
 166     std::shared_ptr<GeomAPI_Pnt> aPoint1 = thePlane->to3D(aPnt_A->x(), aPnt_A->y());
 167     std::shared_ptr<GeomAPI_Pnt> aPoint2 = thePlane->to3D(aPnt_B->x(), aPnt_B->y());
 168     thePnt1 = aPoint1->impl<gp_Pnt>();
 169     thePnt2 = aPoint2->impl<gp_Pnt>();
 170     return true;
 171   }
 172   return false;
 173 }
 174
 175
 176
 177 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 178                                                    const Standard_Integer theMode)
 179 {
 180   // Map the application selection modes to standard ones
 181   Standard_Integer aMode;
 182   switch (theMode) {
 183   case 0: // we should use selection of all objects
 184     aMode = 0;
 185     break;
 186   case SketcherPrs_Tools::Sel_Dimension_All:
 187     aMode = 0;
 188     break;
 189   case SketcherPrs_Tools::Sel_Dimension_Line:
 190     aMode = 1;
 191     break;
 192   case SketcherPrs_Tools::Sel_Dimension_Text:
 193     aMode = 2;
 194     break;
 195   default: {
 196     // there are own selection modes, so the others should be ignored
 197     // otherwise, the text selection appears in the viewer
 198     return;
 199   }
 200   }
 201   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
 202   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 203 }