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