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     }
  78   }
  79 }
  80
  81 void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
  82 {
  83   std::shared_ptr<ModelAPI_Data> aData = data();
  84   if (!aData->isValid())
  85     return;
  86
  87   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  88     (aData->attribute(START_ID()));
  89   aPoint1->move(theDeltaX, theDeltaY);
  90
  91   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  92     (aData->attribute(END_ID()));
  93   aPoint2->move(theDeltaX, theDeltaY);
  94 }
  95
  96 std::string SketchPlugin_Line::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  97 {
  98   std::string aFilledAttributeName;
  99
 100   std::shared_ptr<ModelAPI_EventReentrantMessage> aReentrantMessage =
 101         std::dynamic_pointer_cast<ModelAPI_EventReentrantMessage>(theMessage);
 102   if (aReentrantMessage.get()) {
 103     FeaturePtr aCreatedFeature = aReentrantMessage->createdFeature();
 104
 105     // Initialize new line with first point equal to end of previous
 106     std::shared_ptr<ModelAPI_Data> aSFData = aCreatedFeature->data();
 107     std::shared_ptr<GeomDataAPI_Point2D> aSPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 108                                                  aSFData->attribute(SketchPlugin_Line::END_ID()));
 109     std::shared_ptr<ModelAPI_Data> aNFData = data();
 110     std::shared_ptr<GeomDataAPI_Point2D> aNPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 111                                                  aNFData->attribute(SketchPlugin_Line::START_ID()));
 112     aNPoint->setValue(aSPoint->x(), aSPoint->y());
 113     SketchPlugin_ConstraintCoincidence::createCoincidenceFeature(sketch(), aSPoint, aNPoint);
 114
 115     aNPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 116                                                  aSFData->attribute(SketchPlugin_Line::END_ID()));
 117     aNPoint->setValue(aSPoint->x(), aSPoint->y());
 118
 119   }
 120   return aFilledAttributeName;
 121 }
 122
 123 double SketchPlugin_Line::distanceToPoint(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 124 {
 125   double aDelta = 0;
 126
 127   std::shared_ptr<ModelAPI_Data> aData = data();
 128   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
 129     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
 130   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
 131     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
 132
 133   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
 134
 135   if (false/*projection*/) {  // TODO: if it has not been necessary, remove this block
 136     std::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
 137     aDelta = aResult->distance(thePoint);
 138   } else {  // distance
 139     aDelta = aLin2d.distance(thePoint);
 140   }
 141
 142   return aDelta;
 143 }
 144
 145 const std::string& SketchPlugin_Line::getKind()
 146 {
 147   static std::string MY_KIND = SketchPlugin_Line::ID();
 148   return MY_KIND;
 149 }
 150
 151 bool SketchPlugin_Line::isFixed() {
 152   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 153 }
 154
 155 void SketchPlugin_Line::attributeChanged(const std::string& theID) {
 156   // the second condition for unability to move external segments anywhere
 157   // isCopy() is checked temporary for case when copied lines stored external id state
 158   // to be removed after debug
 159   if ((theID == EXTERNAL_ID() || isFixed()) && !isCopy()) {
 160     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 161     if (!aSelection) {
 162       // empty shape in selection shows that the shape is equal to context
 163       ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
 164       if (anExtRes)
 165         aSelection = anExtRes->shape();
 166     }
 167     // update arguments due to the selection value
 168     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 169       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 170       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 171         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
 172       aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 173       std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 174         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
 175       anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 176       updateLenghtValue();
 177     }
 178   }
 179   else if (theID == START_ID() || theID == END_ID()) {
 180     updateLenghtValue();
 181   }
 182 }
 183
 184 void SketchPlugin_Line::updateLenghtValue()
 185 {
 186   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 187       GeomDataAPI_Point2D>(data()->attribute(START_ID()));
 188   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 189       GeomDataAPI_Point2D>(data()->attribute(END_ID()));
 190   if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
 191     double aDistance = aStartAttr->pnt()->distance(anEndAttr->pnt());
 192     data()->real(LENGTH_ID())->setValue(aDistance);
 193   }
 194 }