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 <Events_Error.h>
  19
  20 #include <GeomDataAPI_Point2D.h>
  21 #include <GeomAPI_Pnt.h>
  22 #include <GeomAPI_XYZ.h>
  23 #include <GeomAPI_Pnt2d.h>
  24 #include <GeomAPI_Lin2d.h>
  25
  26 #include <ModelAPI_Data.h>
  27 #include <ModelAPI_AttributeDouble.h>
  28
  29 #include <AIS_DisplaySpecialSymbol.hxx>
  30
  31
  32 static const gp_Pnt MyDefStart(0,0,0);
  33 static const gp_Pnt MyDefEnd(1,0,0);
  34 static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
  35
  36 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_LengthDimension, AIS_LengthDimension);
  37 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
  38
  39 SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
  40                                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  41 : AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
  42   myConstraint(theConstraint),
  43   mySketcherPlane(thePlane)
  44 {
  45   SetDimensionAspect(SketcherPrs_Tools::createDimensionAspect());
  46   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
  47
  48   myStyleListener = new SketcherPrs_DimensionStyleListener();
  49 }
  50
  51 SketcherPrs_LengthDimension::~SketcherPrs_LengthDimension()
  52 {
  53   delete myStyleListener;
  54 }
  55
  56 bool SketcherPrs_LengthDimension::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  57                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  58 {
  59   bool aReadyToDisplay = false;
  60
  61   gp_Pnt aPnt1, aPnt2;
  62   aReadyToDisplay = getPoints(theConstraint, thePlane, aPnt1, aPnt2);
  63
  64   return aReadyToDisplay;
  65 }
  66
  67 void SketcherPrs_LengthDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
  68                                           const Handle(Prs3d_Presentation)& thePresentation,
  69                                           const Standard_Integer theMode)
  70 {
  71   bool aReadyToDisplay = IsReadyToDisplay(myConstraint, mySketcherPlane);
  72   if (aReadyToDisplay) {
  73     myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
  74     getPoints(myConstraint, mySketcherPlane, myFirstPoint, mySecondPoint);
  75     myPlane = gp_Pln(mySketcherPlane->impl<gp_Ax3>());
  76
  77     AttributeDoublePtr anAttributeValue = myConstraint->data()->real(SketchPlugin_Constraint::VALUE());
  78
  79     myHasParameters = anAttributeValue->usedParameters().size() > 0;
  80     myValue = anAttributeValue->text();
  81   }
  82
  83   // compute flyout distance
  84   SetFlyout(myDistance);
  85   SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
  86
  87   // Update variable aspect parameters (depending on viewer scale)
  88   double aTextSize = 0.0;
  89   GetValueString(aTextSize);
  90   SketcherPrs_Tools::updateArrows(DimensionAspect(), GetValue(), aTextSize);
  91
  92   // Update text visualization: parameter value or parameter text
  93   myStyleListener->updateDimensions(this, myHasParameters, myValue);
  94
  95   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  96
  97   if (!aReadyToDisplay)
  98     SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
  99                               "An empty AIS presentation: SketcherPrs_LengthDimension");
 100
 101 }
 102
 103 bool SketcherPrs_LengthDimension::getPoints(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 }