src/SketchPlugin/SketchPlugin_Line.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:        SketchPlugin_Line.cxx
   4 // Created:     27 Mar 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include "SketchPlugin_Line.h"
   8 #include "SketchPlugin_Sketch.h"
   9 #include "SketchPlugin_ConstraintCoincidence.h"
  10
  11 #include <ModelAPI_Data.h>
  12 #include <ModelAPI_EventReentrantMessage.h>
  13 #include <ModelAPI_ResultConstruction.h>
  14 #include <ModelAPI_AttributeSelection.h>
  15 #include <ModelAPI_AttributeBoolean.h>
  16 #include <ModelAPI_AttributeDouble.h>
  17 #include <ModelAPI_Validator.h>
  18 #include <ModelAPI_Session.h>
  19
  20 #include <GeomAPI_Pnt.h>
  21 #include <GeomAPI_Lin2d.h>
  22 #include <GeomAPI_Pnt2d.h>
  23
  24 #include <GeomAlgoAPI_EdgeBuilder.h>
  25 #include <GeomDataAPI_Point2D.h>
  26
  27 SketchPlugin_Line::SketchPlugin_Line()
  28     : SketchPlugin_SketchEntity()
  29 {}
  30
  31 void SketchPlugin_Line::initAttributes()
  32 {
  33   SketchPlugin_SketchEntity::initAttributes();
  34   /// new attributes should be added to end of the feature in order to provide
  35   /// correct attribute values in previous saved studies
  36   data()->addAttribute(LENGTH_ID(), ModelAPI_AttributeDouble::typeId());
  37 }
  38
  39 void SketchPlugin_Line::initDerivedClassAttributes()
  40 {
  41   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
  42   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId());
  43   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  44   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  45 }
  46
  47 void SketchPlugin_Line::execute()
  48 {
  49   SketchPlugin_Sketch* aSketch = sketch();
  50   if (aSketch) {
  51     // compute a start point in 3D view
  52     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  53         GeomDataAPI_Point2D>(data()->attribute(START_ID()));
  54     // compute an end point in 3D view
  55     std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
  56         GeomDataAPI_Point2D>(data()->attribute(END_ID()));
  57     if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
  58       std::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  59       std::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  60       //std::cout<<"Execute line "<<aStart->x()<<" "<<aStart->y()<<" "<<aStart->z()<<" - "
  61       //  <<anEnd->x()<<" "<<anEnd->y()<<" "<<anEnd->z()<<std::endl;
  62       // make linear edge
  63       std::shared_ptr<GeomAPI_Edge> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
  64       // store the result
  65       std::shared_ptr<ModelAPI_ResultConstruction> aConstr = document()->createConstruction(
  66           data());
  67       aConstr->setShape(anEdge);
  68       aConstr->setIsInHistory(false);
  69       setResult(aConstr);
  70
  71       static Events_ID anId = ModelAPI_EventReentrantMessage::eventId();
  72       std::shared_ptr<ModelAPI_EventReentrantMessage> aMessage = std::shared_ptr
  73           <ModelAPI_EventReentrantMessage>(new ModelAPI_EventReentrantMessage(anId, 0));
  74       aMessage->setCreatedFeature(ModelAPI_Feature::feature(
  75                                   data()->attribute(START_ID())->owner()));
  76       Events_Loop::loop()->send(aMessage);
  77       Events_Loop::loop()->flush(anId);
  78     }
  79   }
  80 }
  81
  82 void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
  83 {
  84   std::shared_ptr<ModelAPI_Data> aData = data();
  85   if (!aData->isValid())
  86     return;
  87
  88   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  89     (aData->attribute(START_ID()));
  90   aPoint1->move(theDeltaX, theDeltaY);
  91
  92   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  93     (aData->attribute(END_ID()));
  94   aPoint2->move(theDeltaX, theDeltaY);
  95 }
  96
  97 std::string SketchPlugin_Line::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  98 {
  99   std::string aFilledAttributeName;
 100
 101   std::shared_ptr<ModelAPI_EventReentrantMessage> aReentrantMessage =
 102         std::dynamic_pointer_cast<ModelAPI_EventReentrantMessage>(theMessage);
 103   if (aReentrantMessage.get()) {
 104     FeaturePtr aCreatedFeature = aReentrantMessage->createdFeature();
 105
 106     // Initialize new line with first point equal to end of previous
 107     std::shared_ptr<ModelAPI_Data> aSFData = aCreatedFeature->data();
 108     std::shared_ptr<GeomDataAPI_Point2D> aSPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 109                                                  aSFData->attribute(SketchPlugin_Line::END_ID()));
 110     std::shared_ptr<ModelAPI_Data> aNFData = data();
 111     std::shared_ptr<GeomDataAPI_Point2D> aNPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 112                                                  aNFData->attribute(SketchPlugin_Line::START_ID()));
 113     aNPoint->setValue(aSPoint->x(), aSPoint->y());
 114     SketchPlugin_ConstraintCoincidence::createCoincidenceFeature(sketch(), aSPoint, aNPoint);
 115
 116     aNPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 117                                                  aSFData->attribute(SketchPlugin_Line::END_ID()));
 118     aNPoint->setValue(aSPoint->x(), aSPoint->y());
 119
 120   }
 121   return aFilledAttributeName;
 122 }
 123
 124 double SketchPlugin_Line::distanceToPoint(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 125 {
 126   double aDelta = 0;
 127
 128   std::shared_ptr<ModelAPI_Data> aData = data();
 129   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
 130     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
 131   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
 132     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
 133
 134   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
 135
 136   if (false/*projection*/) {  // TODO: if it has not been necessary, remove this block
 137     std::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
 138     aDelta = aResult->distance(thePoint);
 139   } else {  // distance
 140     aDelta = aLin2d.distance(thePoint);
 141   }
 142
 143   return aDelta;
 144 }
 145
 146 const std::string& SketchPlugin_Line::getKind()
 147 {
 148   static std::string MY_KIND = SketchPlugin_Line::ID();
 149   return MY_KIND;
 150 }
 151
 152 bool SketchPlugin_Line::isFixed() {
 153   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 154 }
 155
 156 void SketchPlugin_Line::attributeChanged(const std::string& theID) {
 157   // the second condition for unability to move external segments anywhere
 158   // isCopy() is checked temporary for case when copied lines stored external id state
 159   // to be removed after debug
 160   if ((theID == EXTERNAL_ID() || isFixed()) && !isCopy()) {
 161     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 162     if (!aSelection) {
 163       // empty shape in selection shows that the shape is equal to context
 164       ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
 165       if (anExtRes)
 166         aSelection = anExtRes->shape();
 167     }
 168     // update arguments due to the selection value
 169     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 170       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 171       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 172         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
 173       aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 174       std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 175         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
 176       anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 177       updateLenghtValue();
 178     }
 179   }
 180   else if (theID == START_ID() || theID == END_ID()) {
 181     updateLenghtValue();
 182   }
 183 }
 184
 185 void SketchPlugin_Line::updateLenghtValue()
 186 {
 187   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 188       GeomDataAPI_Point2D>(data()->attribute(START_ID()));
 189   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 190       GeomDataAPI_Point2D>(data()->attribute(END_ID()));
 191   if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
 192     double aDistance = aStartAttr->pnt()->distance(anEndAttr->pnt());
 193     data()->real(LENGTH_ID())->setValue(aDistance);
 194   }
 195 }