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::compute(const std::string& theAttributeId)
  57 {
  58   if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
  59     return false;
  60
  61   std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
  62   std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
  63   if (!getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint))
  64     return false;
  65
  66   std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
  67       GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
  68
  69   std::shared_ptr<GeomAPI_Lin2d> aLine =
  70     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStartPoint->pnt(), anEndPoint->pnt()));
  71   double aDist = aPoint1->distance(aPoint2)/5.;
  72   std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
  73   aFlyOutAttr->setValue(aFPnt);
  74
  75   return true;
  76 }
  77
  78 bool SketchPlugin_ConstraintLength::getPoints(
  79   std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
  80   std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
  81   std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint)
  82 {
  83   if (!sketch())
  84     return false;
  85   std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
  86   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
  87       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  88   if (!anAttr)
  89     return false;
  90   FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
  91   if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
  92     return false;
  93   DataPtr aData = aFeature->data();
  94   theStartPoint = std::dynamic_pointer_cast<
  95       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::START_ID()));
  96   theEndPoint = std::dynamic_pointer_cast<
  97       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
  98   thePoint1 = sketch()->to3D(theStartPoint->x(), theStartPoint->y());
  99   thePoint2 = sketch()->to3D(theEndPoint->x(), theEndPoint->y());
 100   return true;
 101 }
 102
 103 AISObjectPtr SketchPlugin_ConstraintLength::getAISObject(AISObjectPtr thePrevious)
 104 {
 105   std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
 106   std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
 107   if (!getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint))
 108     return thePrevious; // not possible to show length because points are not defined
 109
 110   AttributePtr aFlyOutAttribute = data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
 111   if (!aFlyOutAttribute->isInitialized()) {
 112     if (!compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))
 113       return thePrevious; // not possible to show length because points are not defined
 114   }
 115   std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
 116                                                           GeomDataAPI_Point2D>(aFlyOutAttribute);
 117   std::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = sketch()->to3D(aFlyOutAttr->x(), aFlyOutAttr->y());
 118   // value calculation
 119   // TODO: has to be calculated on definition of reference object
 120   double aDistance = aPoint1->distance(aPoint2);
 121   std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 122       ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 123   double aValue = aDistance;
 124   if (aValueAttr->isInitialized())
 125     aValue = aValueAttr->value();
 126   else
 127     aValueAttr->setValue(aValue);
 128   // End TODO
 129
 130   AISObjectPtr anAIS = thePrevious;
 131   if (!anAIS)
 132     anAIS = AISObjectPtr(new GeomAPI_AISObject);
 133   std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
 134   anAIS->createDistance(aPoint1, aPoint2, aFlyoutPnt, aPlane, aValue);
 135
 136   // Set color from preferences
 137   std::vector<int> aRGB =
 138     Config_PropManager::color("Visualization", "length_color", LENGTH_COLOR);
 139   anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
 140   return anAIS;
 141 }
 142
 143 void SketchPlugin_ConstraintLength::move(double theDeltaX, double theDeltaY)
 144 {
 145   std::shared_ptr<ModelAPI_Data> aData = data();
 146   if (!aData->isValid())
 147     return;
 148
 149   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 150       aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 151   aPoint->move(theDeltaX, theDeltaY);
 152 }
 153
 154 void SketchPlugin_ConstraintLength::attributeChanged(const std::string& theID) {
 155   if (theID == SketchPlugin_Constraint::ENTITY_A())
 156   {
 157     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 158       ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 159     if (!aValueAttr->isInitialized()) { // only if it is not initialized, try to compute the current value
 160       std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
 161       std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
 162       if (getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint)) {
 163         double aLength = aPoint1->distance(aPoint2);
 164         aValueAttr->setValue(aLength);
 165       }
 166     }
 167   }
 168 }