src/SketchPlugin/SketchPlugin_IntersectionPoint.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_IntersectionPoint.cpp
   4 // Created: 07 May 2014
   5 // Author:  Artem ZHIDKOV
   6
   7 #include "SketchPlugin_IntersectionPoint.h"
   8
   9 #include <ModelAPI_AttributeSelection.h>
  10 #include <ModelAPI_Session.h>
  11 #include <ModelAPI_Validator.h>
  12
  13 #include <GeomAPI_Edge.h>
  14 #include <GeomAPI_Lin.h>
  15 #include <GeomDataAPI_Point2D.h>
  16
  17 SketchPlugin_IntersectionPoint::SketchPlugin_IntersectionPoint()
  18     : SketchPlugin_Point()
  19 {
  20 }
  21
  22 void SketchPlugin_IntersectionPoint::initDerivedClassAttributes()
  23 {
  24   data()->addAttribute(EXTERNAL_LINE_ID(), ModelAPI_AttributeSelection::typeId());
  25   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), AUXILIARY_ID());
  26
  27   SketchPlugin_Point::initDerivedClassAttributes();
  28 }
  29
  30 void SketchPlugin_IntersectionPoint::execute()
  31 {
  32   SketchPlugin_Sketch* aSketch = sketch();
  33   if (aSketch) {
  34     computePoint();
  35     SketchPlugin_Point::execute();
  36
  37     // set this feature as external
  38     data()->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
  39   }
  40 }
  41
  42 void SketchPlugin_IntersectionPoint::move(double theDeltaX, double theDeltaY)
  43 {
  44 }
  45
  46 void SketchPlugin_IntersectionPoint::attributeChanged(const std::string& theID)
  47 {
  48   if (theID == EXTERNAL_LINE_ID()) {
  49     // compute intersection between line and sketch plane
  50     computePoint();
  51   }
  52 }
  53
  54 void SketchPlugin_IntersectionPoint::computePoint()
  55 {
  56   AttributeSelectionPtr aLineAttr =
  57       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(attribute(EXTERNAL_LINE_ID()));
  58
  59   std::shared_ptr<GeomAPI_Edge> anEdge;
  60   if(aLineAttr && aLineAttr->value() && aLineAttr->value()->isEdge()) {
  61     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->value()));
  62   } else if(aLineAttr->context() && aLineAttr->context()->shape() && aLineAttr->context()->shape()->isEdge()) {
  63     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLineAttr->context()->shape()));
  64   }
  65   if(!anEdge.get())
  66     return;
  67
  68   std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
  69   std::shared_ptr<GeomAPI_Pln> aSketchPlane = sketch()->plane();
  70
  71   std::shared_ptr<GeomAPI_Pnt> anIntersection = aSketchPlane->intersect(aLine);
  72   if (!anIntersection)
  73     return;
  74
  75   std::shared_ptr<GeomDataAPI_Point2D> aCoordAttr =
  76       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(COORD_ID()));
  77   aCoordAttr->setValue(sketch()->to2D(anIntersection));
  78 }