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 SketchPlugin_Line::SketchPlugin_Line()
  25     : SketchPlugin_SketchEntity()
  26 {}
  27
  28 void SketchPlugin_Line::initAttributes()
  29 {
  30   SketchPlugin_SketchEntity::initAttributes();
  31   /// new attributes should be added to end of the feature in order to provide
  32   /// correct attribute values in previous saved studies
  33   data()->addAttribute(LENGTH_ID(), ModelAPI_AttributeDouble::typeId());
  34 }
  35
  36 void SketchPlugin_Line::initDerivedClassAttributes()
  37 {
  38   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
  39   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId());
  40   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  41   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  42 }
  43
  44 void SketchPlugin_Line::execute()
  45 {
  46   SketchPlugin_Sketch* aSketch = sketch();
  47   if (aSketch) {
  48     // compute a start point in 3D view
  49     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  50         GeomDataAPI_Point2D>(data()->attribute(START_ID()));
  51     // compute an end point in 3D view
  52     std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
  53         GeomDataAPI_Point2D>(data()->attribute(END_ID()));
  54     if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
  55       std::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  56       std::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  57       //std::cout<<"Execute line "<<aStart->x()<<" "<<aStart->y()<<" "<<aStart->z()<<" - "
  58       //  <<anEnd->x()<<" "<<anEnd->y()<<" "<<anEnd->z()<<std::endl;
  59       // make linear edge
  60       std::shared_ptr<GeomAPI_Edge> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
  61       // store the result
  62       std::shared_ptr<ModelAPI_ResultConstruction> aConstr = document()->createConstruction(
  63           data());
  64       aConstr->setShape(anEdge);
  65       aConstr->setIsInHistory(false);
  66       setResult(aConstr);
  67     }
  68   }
  69 }
  70
  71 void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
  72 {
  73   std::shared_ptr<ModelAPI_Data> aData = data();
  74   if (!aData->isValid())
  75     return;
  76
  77   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  78     (aData->attribute(START_ID()));
  79   aPoint1->move(theDeltaX, theDeltaY);
  80
  81   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>
  82     (aData->attribute(END_ID()));
  83   aPoint2->move(theDeltaX, theDeltaY);
  84 }
  85
  86 double SketchPlugin_Line::distanceToPoint(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
  87 {
  88   double aDelta = 0;
  89
  90   std::shared_ptr<ModelAPI_Data> aData = data();
  91   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  92     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
  93   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
  94     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
  95
  96   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
  97
  98   if (false/*projection*/) {  // TODO: if it has not been necessary, remove this block
  99     std::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
 100     aDelta = aResult->distance(thePoint);
 101   } else {  // distance
 102     aDelta = aLin2d.distance(thePoint);
 103   }
 104
 105   return aDelta;
 106 }
 107
 108 const std::string& SketchPlugin_Line::getKind()
 109 {
 110   static std::string MY_KIND = SketchPlugin_Line::ID();
 111   return MY_KIND;
 112 }
 113
 114 bool SketchPlugin_Line::isFixed() {
 115   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 116 }
 117
 118 void SketchPlugin_Line::attributeChanged(const std::string& theID) {
 119   // the second condition for unability to move external segments anywhere
 120   // isCopy() is checked temporary for case when copied lines stored external id state
 121   // to be removed after debug
 122   if ((theID == EXTERNAL_ID() || isFixed()) && !isCopy()) {
 123     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 124     if (!aSelection) {
 125       // empty shape in selection shows that the shape is equal to context
 126       ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
 127       if (anExtRes)
 128         aSelection = anExtRes->shape();
 129     }
 130     // update arguments due to the selection value
 131     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 132       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 133       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 134         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
 135       aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 136       std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 137         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
 138       anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 139       updateLenghtValue();
 140     }
 141   }
 142   else if (theID == START_ID() || theID == END_ID()) {
 143     updateLenghtValue();
 144   }
 145 }
 146
 147 void SketchPlugin_Line::updateLenghtValue()
 148 {
 149   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 150       GeomDataAPI_Point2D>(data()->attribute(START_ID()));
 151   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 152       GeomDataAPI_Point2D>(data()->attribute(END_ID()));
 153   if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
 154     double aDistance = aStartAttr->pnt()->distance(anEndAttr->pnt());
 155     data()->real(LENGTH_ID())->setValue(aDistance);
 156   }
 157 }