src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp

   1 // File:    SketchPlugin_ConstraintDistance.cpp
   2 // Created: 23 May 2014
   3 // Author:  Artem ZHIDKOV
   4
   5 #include "SketchPlugin_ConstraintDistance.h"
   6 #include <SketchPlugin_Point.h>
   7 #include <SketchPlugin_Circle.h>
   8 #include <SketchPlugin_Line.h>
   9
  10 #include <GeomAPI_Lin2d.h>
  11 #include <GeomAPI_Pnt2d.h>
  12 #include <GeomDataAPI_Point2D.h>
  13
  14 #include <ModelAPI_AttributeDouble.h>
  15 #include <ModelAPI_Data.h>
  16
  17 #include <Config_PropManager.h>
  18
  19 SketchPlugin_ConstraintDistance::SketchPlugin_ConstraintDistance()
  20 {
  21 }
  22
  23 //*************************************************************************************
  24 void SketchPlugin_ConstraintDistance::initAttributes()
  25 {
  26   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::type());
  27   data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::type());
  28   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::type());
  29   data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::type());
  30 }
  31
  32 //*************************************************************************************
  33 void SketchPlugin_ConstraintDistance::execute()
  34 {
  35   boost::shared_ptr<ModelAPI_Data> aData = data();
  36   AttributeDoublePtr anAttr_Value = boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  37       aData->attribute(SketchPlugin_Constraint::VALUE()));
  38
  39   if (!anAttr_Value->isInitialized()) {
  40     boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(
  41         aData, SketchPlugin_Constraint::ENTITY_A());
  42     boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(
  43         aData, SketchPlugin_Constraint::ENTITY_B());
  44
  45     if (aPoint_A && aPoint_B) {  // both points
  46       anAttr_Value->setValue(aPoint_A->pnt()->distance(aPoint_B->pnt()));
  47     } else {
  48       if (!aPoint_A && aPoint_B) {  //Line and point
  49         boost::shared_ptr<SketchPlugin_Line> aLine = getFeatureLine(
  50             aData, SketchPlugin_Constraint::ENTITY_A());
  51         if (aLine)
  52           anAttr_Value->setValue(aLine->distanceToPoint(aPoint_B->pnt()));
  53       } else if (aPoint_A && !aPoint_B) {  // Point and line
  54         boost::shared_ptr<SketchPlugin_Line> aLine = getFeatureLine(
  55             aData, SketchPlugin_Constraint::ENTITY_B());
  56         if (aLine)
  57           anAttr_Value->setValue(aLine->distanceToPoint(aPoint_A->pnt()));
  58       }
  59     }
  60   }
  61 }
  62
  63 //*************************************************************************************
  64 AISObjectPtr SketchPlugin_ConstraintDistance::getAISObject(AISObjectPtr thePrevious)
  65 {
  66   if (!sketch())
  67     return thePrevious;
  68
  69   boost::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
  70
  71   DataPtr aData = data();
  72   boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(
  73       aData, SketchPlugin_Constraint::ENTITY_A());
  74   boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(
  75       aData, SketchPlugin_Constraint::ENTITY_B());
  76
  77   boost::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
  78   boost::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
  79
  80   if (aPoint_A && aPoint_B) {
  81     aPnt_A = aPoint_A->pnt();
  82     aPnt_B = aPoint_B->pnt();
  83   } else if (!aPoint_A && aPoint_B) {
  84     boost::shared_ptr<SketchPlugin_Line> aLine = getFeatureLine(
  85         aData, SketchPlugin_Constraint::ENTITY_A());
  86     if (aLine) {
  87       aPnt_B = aPoint_B->pnt();
  88       aPnt_A = getProjectionPoint(aLine, aPnt_B);
  89     }
  90   } else if (aPoint_A && !aPoint_B) {
  91     boost::shared_ptr<SketchPlugin_Line> aLine = getFeatureLine(
  92         aData, SketchPlugin_Constraint::ENTITY_B());
  93     if (aLine) {
  94       aPnt_A = aPoint_A->pnt();
  95       aPnt_B = getProjectionPoint(aLine, aPnt_A);
  96     }
  97   }
  98   if (!aPnt_A || !aPnt_B)
  99     return thePrevious;
 100
 101   boost::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = boost::dynamic_pointer_cast<
 102       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 103
 104   boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPnt_A->x(), aPnt_A->y());
 105   boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPnt_B->x(), aPnt_B->y());
 106   boost::shared_ptr<GeomAPI_Pnt> aFlyoutPnt =
 107       aFlyOutAttr->isInitialized() ?
 108           sketch()->to3D(aFlyOutAttr->x(), aFlyOutAttr->y()) : boost::shared_ptr<GeomAPI_Pnt>();
 109
 110   // value calculation
 111   boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = boost::dynamic_pointer_cast<
 112       ModelAPI_AttributeDouble>(aData->attribute(SketchPlugin_Constraint::VALUE()));
 113   double aValue = aValueAttr->value();
 114
 115   AISObjectPtr anAIS = thePrevious;
 116   if (!anAIS)
 117     anAIS = AISObjectPtr(new GeomAPI_AISObject);
 118   anAIS->createDistance(aPoint1, aPoint2, aFlyoutPnt, aPlane, aValue);
 119
 120   // Set color from preferences
 121   std::vector<int> aRGB = Config_PropManager::color("Visualization", "distance_color",
 122                                                     DISTANCE_COLOR);
 123   anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
 124   return anAIS;
 125 }
 126
 127 //*************************************************************************************
 128 void SketchPlugin_ConstraintDistance::move(double theDeltaX, double theDeltaY)
 129 {
 130   boost::shared_ptr<ModelAPI_Data> aData = data();
 131   if (!aData->isValid())
 132     return;
 133
 134   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 135       aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 136   aPoint1->setValue(aPoint1->x() + theDeltaX, aPoint1->y() + theDeltaY);
 137 }
 138
 139 //*************************************************************************************
 140 boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
 141                                                        const std::string& theAttribute)
 142 {
 143   boost::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
 144
 145   if (!theData)
 146     return aPointAttr;
 147
 148   FeaturePtr aFeature;
 149   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = boost::dynamic_pointer_cast<
 150       ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 151   if (anAttr)
 152     aFeature = ModelAPI_Feature::feature(anAttr->object());
 153
 154   if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID())
 155     aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 156         aFeature->data()->attribute(SketchPlugin_Point::COORD_ID()));
 157   else if (aFeature && aFeature->getKind() == SketchPlugin_Circle::ID())
 158     aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 159         aFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
 160   else if (anAttr->attr()) {
 161     aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
 162   }
 163   return aPointAttr;
 164 }
 165
 166 //*************************************************************************************
 167 boost::shared_ptr<SketchPlugin_Line> getFeatureLine(DataPtr theData,
 168                                                     const std::string& theAttribute)
 169 {
 170   boost::shared_ptr<SketchPlugin_Line> aLine;
 171   if (!theData)
 172     return aLine;
 173
 174   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = boost::dynamic_pointer_cast<
 175       ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 176   if (anAttr) {
 177     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 178     if (aFeature && aFeature->getKind() == SketchPlugin_Line::ID()) {
 179       aLine = boost::dynamic_pointer_cast<SketchPlugin_Line>(aFeature);
 180     }
 181   }
 182   return aLine;
 183 }
 184
 185 //*************************************************************************************
 186 boost::shared_ptr<GeomAPI_Pnt2d> getProjectionPoint(
 187     const boost::shared_ptr<SketchPlugin_Line>& theLine,
 188     const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 189 {
 190   boost::shared_ptr<ModelAPI_Data> aData = theLine->data();
 191   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 192       aData->attribute(SketchPlugin_Line::START_ID()));
 193   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 194       aData->attribute(SketchPlugin_Line::END_ID()));
 195
 196   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
 197   return aLin2d.project(thePoint);
 198 }