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 <ModelAPI_Data.h>
  10 #include <ModelAPI_ResultConstruction.h>
  11 #include <ModelAPI_AttributeSelection.h>
  12 #include <ModelAPI_AttributeBoolean.h>
  13 #include <ModelAPI_AttributeDouble.h>
  14 #include <ModelAPI_Validator.h>
  15 #include <ModelAPI_Session.h>
  16
  17 #include <GeomAPI_Pnt.h>
  18 #include <GeomAPI_Lin2d.h>
  19 #include <GeomAPI_Pnt2d.h>
  20
  21 #include <GeomAlgoAPI_EdgeBuilder.h>
  22 #include <GeomDataAPI_Point2D.h>
  23
  24 using namespace std;
  25
  26 SketchPlugin_Line::SketchPlugin_Line()
  27     : SketchPlugin_SketchEntity()
  28 {}
  29
  30 void SketchPlugin_Line::initAttributes()
  31 {
  32   SketchPlugin_SketchEntity::initAttributes();
  33   /// new attributes should be added to end of the feature in order to provide
  34   /// correct attribute values in previous saved studies
  35   data()->addAttribute(LENGTH_ID(), ModelAPI_AttributeDouble::typeId());
  36 }
  37
  38 void SketchPlugin_Line::initDerivedClassAttributes()
  39 {
  40   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
  41   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId());
  42   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  43   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  44 }
  45
  46 void SketchPlugin_Line::execute()
  47 {
  48   SketchPlugin_Sketch* aSketch = sketch();
  49   if (aSketch) {
  50     // compute a start point in 3D view
  51     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  52         GeomDataAPI_Point2D>(data()->attribute(START_ID()));
  53     // compute an end point in 3D view
  54     std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
  55         GeomDataAPI_Point2D>(data()->attribute(END_ID()));
  56     if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
  57       std::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  58       std::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  59       //std::cout<<"Execute line "<<aStart->x()<<" "<<aStart->y()<<" "<<aStart->z()<<" - "
  60       //  <<anEnd->x()<<" "<<anEnd->y()<<" "<<anEnd->z()<<std::endl;
  61       // make linear edge
  62       std::shared_ptr<GeomAPI_Edge> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
  63       // store the result
  64       std::shared_ptr<ModelAPI_ResultConstruction> aConstr = document()->createConstruction(
  65           data());
  66       aConstr->setShape(anEdge);
  67       aConstr->setIsInHistory(false);
  68       setResult(aConstr);
  69     }
  70   }
  71 }
  72
  73 void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
  74 {
  75   std::shared_ptr<ModelAPI_Data> aData = data();
  76   if (!aData->isValid())
  77     return;
  78
  79   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  80     (aData->attribute(START_ID()));
  81   aPoint1->move(theDeltaX, theDeltaY);
  82
  83   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  84     (aData->attribute(END_ID()));
  85   aPoint2->move(theDeltaX, theDeltaY);
  86 }
  87
  88 double SketchPlugin_Line::distanceToPoint(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
  89 {
  90   double aDelta = 0;
  91
  92   std::shared_ptr<ModelAPI_Data> aData = data();
  93   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  94     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
  95   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
  96     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
  97
  98   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
  99
 100   if (false/*projection*/) {  // TODO: if it has not been necessary, remove this block
 101     std::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
 102     aDelta = aResult->distance(thePoint);
 103   } else {  // distance
 104     aDelta = aLin2d.distance(thePoint);
 105   }
 106
 107   return aDelta;
 108 }
 109
 110 const std::string& SketchPlugin_Line::getKind()
 111 {
 112   static std::string MY_KIND = SketchPlugin_Line::ID();
 113   return MY_KIND;
 114 }
 115
 116 bool SketchPlugin_Line::isFixed() {
 117   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 118 }
 119
 120 void SketchPlugin_Line::attributeChanged(const std::string& theID) {
 121   // the second condition for unability to move external segments anywhere
 122   // isCopy() is checked temporary for case when copied lines stored external id state
 123   // to be removed after debug
 124   if ((theID == EXTERNAL_ID() || isFixed()) && !isCopy()) {
 125     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 126      // update arguments due to the selection value
 127     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 128       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 129       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 130         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
 131       aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 132       std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 133         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
 134       anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 135       updateLenghtValue();
 136     }
 137   }
 138   else if (theID == START_ID() || theID == END_ID()) {
 139     updateLenghtValue();
 140   }
 141 }
 142
 143 void SketchPlugin_Line::updateLenghtValue()
 144 {
 145   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 146       GeomDataAPI_Point2D>(data()->attribute(START_ID()));
 147   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 148       GeomDataAPI_Point2D>(data()->attribute(END_ID()));
 149   if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
 150     double aDistance = aStartAttr->pnt()->distance(anEndAttr->pnt());
 151     data()->real(LENGTH_ID())->setValue(aDistance);
 152   }
 153 }