src/SketchPlugin/SketchPlugin_ConstraintLength.cpp

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