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