src/SketchPlugin/SketchPlugin_Arc.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:        SketchPlugin_Arc.cpp
   4 // Created:     26 Apr 2014
   5 // Author:      Artem ZHIDKOV
   6
   7 #include "SketchPlugin_Arc.h"
   8 #include "SketchPlugin_Sketch.h"
   9 #include <ModelAPI_Data.h>
  10 #include <ModelAPI_ResultConstruction.h>
  11 #include <ModelAPI_AttributeSelection.h>
  12 #include <ModelAPI_Validator.h>
  13 #include <ModelAPI_Session.h>
  14
  15 #include <GeomAPI_Circ2d.h>
  16 #include <GeomAPI_Pnt2d.h>
  17 #include <GeomDataAPI_Point2D.h>
  18 #include <GeomDataAPI_Dir.h>
  19 #include <GeomAlgoAPI_PointBuilder.h>
  20 #include <GeomAlgoAPI_EdgeBuilder.h>
  21 #include <GeomAlgoAPI_CompoundBuilder.h>
  22
  23 const double tolerance = 1e-7;
  24
  25 SketchPlugin_Arc::SketchPlugin_Arc()
  26     : SketchPlugin_Feature()
  27 {
  28   myStartUpdate = false;
  29   myEndUpdate = false;
  30 }
  31
  32 void SketchPlugin_Arc::initAttributes()
  33 {
  34   data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::type());
  35   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::type());
  36   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::type());
  37   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::type());
  38   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  39 }
  40
  41 void SketchPlugin_Arc::execute()
  42 {
  43   SketchPlugin_Sketch* aSketch = sketch();
  44   // result for the arc is set only when all obligatory attributes are initialized,
  45   // otherwise AIS object is used to visualize the arc's preview
  46   if (aSketch && isFeatureValid()) {
  47     // compute a circle point in 3D view
  48     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  49         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
  50     // compute the arc start point
  51     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  52         GeomDataAPI_Point2D>(data()->attribute(START_ID()));
  53
  54     std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  55     // make a visible point
  56     std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
  57     std::shared_ptr<ModelAPI_ResultConstruction> aConstr1 = document()->createConstruction(
  58         data(), 0);
  59     aConstr1->setShape(aCenterPointShape);
  60     aConstr1->setIsInHistory(false);
  61     setResult(aConstr1, 0);
  62
  63     // make a visible circle
  64     std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
  65         aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
  66     std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
  67     std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  68
  69     // compute and change the arc end point
  70     std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
  71         GeomDataAPI_Point2D>(data()->attribute(END_ID()));
  72     /* must be automatically done in attributeChanged
  73     std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
  74         new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
  75     std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
  76     if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
  77       anEndAttr->setValue(aProjection);
  78     */
  79     std::shared_ptr<GeomAPI_Pnt> aEndPoint(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  80
  81     std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(
  82         aCenter, aStartPoint, aEndPoint, aNormal);
  83     if (aCircleShape) {
  84       std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
  85           data(), 1);
  86       aConstr2->setShape(aCircleShape);
  87       aConstr2->setIsInHistory(false);
  88       setResult(aConstr2, 1);
  89     }
  90   }
  91 }
  92
  93 AISObjectPtr SketchPlugin_Arc::getAISObject(AISObjectPtr thePrevious)
  94 {
  95   SketchPlugin_Sketch* aSketch = sketch();
  96   if (aSketch) {
  97     // if the feature is valid, the execute() method should be performed, AIS object is empty
  98     if (!isFeatureValid()) {
  99       // compute a circle point in 3D view
 100       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 101           GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 102       if (aCenterAttr->isInitialized()) {
 103         std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
 104
 105         std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 106             GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
 107         if (aStartAttr->isInitialized()) {
 108           // make a visible circle
 109           std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 110               aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
 111           bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
 112           if (aHasPlane) {
 113             std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
 114             std::shared_ptr<GeomAPI_Pnt> aStartPoint(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
 115             std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircleArc(
 116                                                             aCenter, aStartPoint, aStartPoint, aNormal);
 117             if (aCircleShape) {
 118               std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
 119               // make a visible point
 120               std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
 121               aShapes.push_back(aCenterPointShape);
 122
 123               aShapes.push_back(aCircleShape);
 124               if (!aShapes.empty())
 125               {
 126                 std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
 127                 AISObjectPtr anAIS = thePrevious;
 128                 if (!anAIS)
 129                   anAIS = AISObjectPtr(new GeomAPI_AISObject);
 130                 anAIS->createShape(aCompound);
 131                 return anAIS;
 132               }
 133             }
 134           }
 135         }
 136       }
 137     }
 138   }
 139   return AISObjectPtr();
 140 }
 141
 142 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
 143 {
 144   std::shared_ptr<ModelAPI_Data> aData = data();
 145   if (!aData->isValid())
 146     return;
 147
 148   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 149       aData->attribute(SketchPlugin_Arc::CENTER_ID()));
 150   aPoint1->move(theDeltaX, theDeltaY);
 151
 152   myStartUpdate = true;
 153   myEndUpdate = true;
 154   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 155       aData->attribute(SketchPlugin_Arc::START_ID()));
 156   aPoint2->move(theDeltaX, theDeltaY);
 157
 158   std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 159       aData->attribute(SketchPlugin_Arc::END_ID()));
 160   aPoint3->move(theDeltaX, theDeltaY);
 161   myStartUpdate = false;
 162   myEndUpdate = false;
 163 }
 164
 165 double SketchPlugin_Arc::distanceToPoint(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 166 {
 167   double aDelta = 0;
 168   std::shared_ptr<ModelAPI_Data> aData = data();
 169
 170   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 171       aData->attribute(SketchPlugin_Arc::CENTER_ID()));
 172   aDelta = aPoint1->pnt()->distance(thePoint);
 173
 174   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 175       aData->attribute(SketchPlugin_Arc::START_ID()));
 176   double aDistance = aPoint2->pnt()->distance(thePoint);
 177   if (aDelta < aDistance)
 178     aDelta = aDistance;
 179
 180   std::shared_ptr<GeomDataAPI_Point2D> aPoint3 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 181       aData->attribute(SketchPlugin_Arc::END_ID()));
 182   aDistance = aPoint3->pnt()->distance(thePoint);
 183   if (aDelta < aDistance)
 184     aDelta = aDistance;
 185
 186   return aDelta;
 187 }
 188
 189 bool SketchPlugin_Arc::isFixed() {
 190   return data()->selection(EXTERNAL_ID())->context();
 191 }
 192
 193 bool SketchPlugin_Arc::isFeatureValid()
 194 {
 195   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 196       GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::CENTER_ID()));
 197   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 198       GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::START_ID()));
 199   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 200       GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Arc::END_ID()));
 201
 202   return aCenterAttr->isInitialized() && aStartAttr->isInitialized() && anEndAttr->isInitialized();
 203 }
 204
 205 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
 206 {
 207   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 208       GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 209   if (!aCenterAttr->isInitialized())
 210     return;
 211   std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 212       GeomDataAPI_Point2D>(data()->attribute(START_ID()));
 213   if (!aStartAttr->isInitialized())
 214     return;
 215   std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
 216       GeomDataAPI_Point2D>(data()->attribute(END_ID()));
 217   if (!anEndAttr->isInitialized())
 218     return;
 219
 220   // update the points in accordance to the changed point changes
 221   if (theID == END_ID() && !myEndUpdate) {
 222     myEndUpdate = true;
 223     // compute and change the arc end point
 224     std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
 225         new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
 226     std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEndAttr->pnt());
 227     if (aProjection && anEndAttr->pnt()->distance(aProjection) > tolerance)
 228       anEndAttr->setValue(aProjection);
 229     myEndUpdate = false;
 230   } else if (theID == START_ID() && !myStartUpdate) {
 231     myStartUpdate = true;
 232     // compute and change the arc end point
 233     std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
 234         new GeomAPI_Circ2d(aCenterAttr->pnt(), anEndAttr->pnt()));
 235     std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(aStartAttr->pnt());
 236     if (aProjection && aStartAttr->pnt()->distance(aProjection) > tolerance)
 237       aStartAttr->setValue(aProjection);
 238     myStartUpdate = false;
 239   }
 240 }