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