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   myHasParameters(false),
  46   myValue(""),
  47   myDistance(1)
  48 {
  49   SetDimensionAspect(SketcherPrs_Tools::createDimensionAspect());
  50   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
  51
  52   myStyleListener = new SketcherPrs_DimensionStyleListener();
  53 }
  54
  55 SketcherPrs_LengthDimension::~SketcherPrs_LengthDimension()
  56 {
  57   delete myStyleListener;
  58 }
  59
  60 bool SketcherPrs_LengthDimension::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  61                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  62 {
  63   gp_Pnt aPnt1, aPnt2;
  64   return readyToDisplay(theConstraint, thePlane, aPnt1, aPnt2);
  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   gp_Pnt aPnt1, aPnt2;
  72   bool aReadyToDisplay = readyToDisplay(myConstraint, mySketcherPlane, aPnt1, aPnt2);
  73   if (aReadyToDisplay) {
  74     myFirstPoint = aPnt1;
  75     mySecondPoint = aPnt2;
  76
  77     myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
  78     myPlane = gp_Pln(mySketcherPlane->impl<gp_Ax3>());
  79
  80     AttributeDoublePtr anAttributeValue = myConstraint->data()->real(SketchPlugin_Constraint::VALUE());
  81
  82     myHasParameters = anAttributeValue->usedParameters().size() > 0;
  83     myValue = anAttributeValue->text();
  84   }
  85
  86   // compute flyout distance
  87   SetFlyout(myDistance);
  88   SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
  89
  90   // Update variable aspect parameters (depending on viewer scale)
  91   double aTextSize = 0.0;
  92   GetValueString(aTextSize);
  93   SketcherPrs_Tools::updateArrows(DimensionAspect(), GetValue(), aTextSize);
  94
  95   // Update text visualization: parameter value or parameter text
  96   myStyleListener->updateDimensions(this, myHasParameters, myValue);
  97
  98   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
  99
 100   if (!aReadyToDisplay)
 101     SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
 102                               "An empty AIS presentation: SketcherPrs_LengthDimension");
 103 }
 104
 105 bool SketcherPrs_LengthDimension::readyToDisplay(ModelAPI_Feature* theConstraint,
 106                                                  const std::shared_ptr<GeomAPI_Ax3>& thePlane,
 107                                                  gp_Pnt& thePnt1, gp_Pnt& thePnt2)
 108 {
 109   DataPtr aData = theConstraint->data();
 110   if (theConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 111     // The constraint is length
 112     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 113       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 114       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 115     if (!anAttr)
 116       return false;
 117
 118     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 119     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
 120       return false;
 121
 122     // Get geometry of the object
 123     DataPtr aLineData = aFeature->data();
 124     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 125       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 126       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 127     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 128       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 129       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 130     thePnt1 = thePlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 131     thePnt2 = thePlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 132     return true;
 133
 134   } else if (theConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
 135     // The constraint is distance
 136     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 137         aData, SketchPlugin_Constraint::ENTITY_A(), thePlane);
 138     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 139         aData, SketchPlugin_Constraint::ENTITY_B(), thePlane);
 140
 141     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 142     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 143     if (aPoint_A && aPoint_B) {
 144       // Both objects are points
 145       aPnt_A = aPoint_A->pnt();
 146       aPnt_B = aPoint_B->pnt();
 147     } else if (!aPoint_A && aPoint_B) {
 148       // First object is line
 149       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 150           aData, SketchPlugin_Constraint::ENTITY_A());
 151       if (aLine) {
 152         aPnt_B = aPoint_B->pnt();
 153         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 154       }
 155     } else if (aPoint_A && !aPoint_B) {
 156       // Second object is line
 157       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 158           aData, SketchPlugin_Constraint::ENTITY_B());
 159       if (aLine) {
 160         aPnt_A = aPoint_A->pnt();
 161         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 162       }
 163     }
 164     if (!aPnt_A || !aPnt_B) // Objects not found
 165       return false;
 166
 167     // Get points from these object
 168     std::shared_ptr<GeomAPI_Pnt> aPoint1 = thePlane->to3D(aPnt_A->x(), aPnt_A->y());
 169     std::shared_ptr<GeomAPI_Pnt> aPoint2 = thePlane->to3D(aPnt_B->x(), aPnt_B->y());
 170     thePnt1 = aPoint1->impl<gp_Pnt>();
 171     thePnt2 = aPoint2->impl<gp_Pnt>();
 172     return true;
 173   }
 174   return false;
 175 }
 176
 177
 178
 179 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 180                                                    const Standard_Integer theMode)
 181 {
 182   // Map the application selection modes to standard ones
 183   Standard_Integer aMode;
 184   switch (theMode) {
 185   case 0: // we should use selection of all objects
 186     aMode = 0;
 187     break;
 188   case SketcherPrs_Tools::Sel_Dimension_All:
 189     aMode = 0;
 190     break;
 191   case SketcherPrs_Tools::Sel_Dimension_Line:
 192     aMode = 1;
 193     break;
 194   case SketcherPrs_Tools::Sel_Dimension_Text:
 195     aMode = 2;
 196     break;
 197   default: {
 198     // there are own selection modes, so the others should be ignored
 199     // otherwise, the text selection appears in the viewer
 200     return;
 201   }
 202   }
 203   SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
 204   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 205 }