src/SketchPlugin/SketchPlugin_ConstraintLength.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_ConstraintLength.cpp
   4 // Created: 30 May 2014
   5 // Author:  Artem ZHIDKOV
   6
   7 #include "SketchPlugin_ConstraintLength.h"
   8 #include <SketchPlugin_Line.h>
   9
  10 #include <GeomDataAPI_Point2D.h>
  11
  12 #include <ModelAPI_AttributeDouble.h>
  13 #include <ModelAPI_Data.h>
  14 #include <ModelAPI_Result.h>
  15
  16 #include <GeomDataAPI_Point2D.h>
  17
  18 #include <GeomAPI_Lin2d.h>
  19 #include <GeomAPI_Pnt2d.h>
  20
  21 #include <Config_PropManager.h>
  22
  23 SketchPlugin_ConstraintLength::SketchPlugin_ConstraintLength()
  24 {
  25 }
  26
  27 void SketchPlugin_ConstraintLength::initAttributes()
  28 {
  29   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::type());
  30   data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::type());
  31   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::type());
  32 }
  33
  34 void SketchPlugin_ConstraintLength::execute()
  35 {
  36   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
  37       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  38   FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
  39   if (aFeature) {
  40     // set length value
  41     std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<
  42         GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::START_ID()));
  43     std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<
  44         GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::END_ID()));
  45
  46     double aLenght = aPoint1->pnt()->distance(aPoint2->pnt());
  47
  48     //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
  49     //    ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
  50     //if(!aValueAttr->isInitialized()) {
  51     //  aValueAttr->setValue(aLenght);
  52     //}
  53   }
  54 }
  55
  56 bool SketchPlugin_ConstraintLength::getPoints(
  57   std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
  58   std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
  59   std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint)
  60 {
  61   if (!sketch())
  62     return false;
  63   std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
  64   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
  65       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  66   if (!anAttr)
  67     return false;
  68   FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
  69   if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
  70     return false;
  71   DataPtr aData = aFeature->data();
  72   theStartPoint = std::dynamic_pointer_cast<
  73       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::START_ID()));
  74   theEndPoint = std::dynamic_pointer_cast<
  75       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
  76   thePoint1 = sketch()->to3D(theStartPoint->x(), theStartPoint->y());
  77   thePoint2 = sketch()->to3D(theEndPoint->x(), theEndPoint->y());
  78   return true;
  79 }
  80
  81 AISObjectPtr SketchPlugin_ConstraintLength::getAISObject(AISObjectPtr thePrevious)
  82 {
  83   std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
  84   std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
  85   if (!getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint))
  86     return thePrevious; // not possible to show length because points are not defined
  87
  88   std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
  89   std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
  90       GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
  91   std::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = std::shared_ptr<GeomAPI_Pnt>();
  92   if (aFlyOutAttr->isInitialized()) {
  93     aFlyoutPnt = sketch()->to3D(aFlyOutAttr->x(), aFlyOutAttr->y());
  94   } else {
  95     std::shared_ptr<GeomAPI_Lin2d> aLine =
  96       std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStartPoint->pnt(), anEndPoint->pnt()));
  97     double aDist = aPoint1->distance(aPoint2)/5.;
  98     std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
  99     aFlyOutAttr->setValue(aFPnt);
 100     aFlyoutPnt = sketch()->to3D(aFPnt->x(), aFPnt->y());
 101   }
 102   // value calculation
 103   // TODO: has to be calculated on definition of reference object
 104   double aDistance = aPoint1->distance(aPoint2);
 105   std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 106       ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 107   double aValue = aDistance;
 108   if (aValueAttr->isInitialized())
 109     aValue = aValueAttr->value();
 110   else
 111     aValueAttr->setValue(aValue);
 112   // End TODO
 113
 114   AISObjectPtr anAIS = thePrevious;
 115   if (!anAIS)
 116     anAIS = AISObjectPtr(new GeomAPI_AISObject);
 117   anAIS->createDistance(aPoint1, aPoint2, aFlyoutPnt, aPlane, aValue);
 118
 119   // Set color from preferences
 120   std::vector<int> aRGB =
 121     Config_PropManager::color("Visualization", "length_color", LENGTH_COLOR);
 122   anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
 123   return anAIS;
 124 }
 125
 126 void SketchPlugin_ConstraintLength::move(double theDeltaX, double theDeltaY)
 127 {
 128   std::shared_ptr<ModelAPI_Data> aData = data();
 129   if (!aData->isValid())
 130     return;
 131
 132   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 133       aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 134   aPoint->move(theDeltaX, theDeltaY);
 135 }
 136
 137 void SketchPlugin_ConstraintLength::attributeChanged(const std::string& theID) {
 138   if (theID == SketchPlugin_Constraint::ENTITY_A())
 139   {
 140     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 141       ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 142     if (!aValueAttr->isInitialized()) { // only if it is not initialized, try to compute the current value
 143       std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
 144       std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
 145       if (getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint)) {
 146         double aLength = aPoint1->distance(aPoint2);
 147         aValueAttr->setValue(aLength);
 148       }
 149     }
 150   }
 151 }