src/SketchPlugin/SketchPlugin_Circle.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:        SketchPlugin_Circle.cpp
   4 // Created:     26 May 2014
   5 // Author:      Artem ZHIDKOV
   6
   7 #include "SketchPlugin_Circle.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_AttributeDouble.h>
  14 #include <ModelAPI_AttributeString.h>
  15 #include <ModelAPI_Session.h>
  16
  17 #include <GeomAPI_Pnt2d.h>
  18 #include <GeomAPI_Circ.h>
  19 #include <GeomAPI_Circ2d.h>
  20 #include <GeomAPI_XY.h>
  21 #include <GeomDataAPI_Point2D.h>
  22 #include <GeomDataAPI_Dir.h>
  23 #include <GeomAlgoAPI_PointBuilder.h>
  24 #include <GeomAlgoAPI_EdgeBuilder.h>
  25 #include <GeomAlgoAPI_CompoundBuilder.h>
  26
  27 #include <cmath>
  28
  29 const double tolerance = 1e-7;
  30
  31 namespace {
  32   static const std::string& POINT_ID(int theIndex)
  33   {
  34     switch (theIndex) {
  35     case 1: return SketchPlugin_Circle::FIRST_POINT_ID();
  36     case 2: return SketchPlugin_Circle::SECOND_POINT_ID();
  37     case 3: return SketchPlugin_Circle::THIRD_POINT_ID();
  38     }
  39
  40     static const std::string DUMMY;
  41     return DUMMY;
  42   }
  43 }
  44
  45
  46 SketchPlugin_Circle::SketchPlugin_Circle()
  47     : SketchPlugin_SketchEntity()
  48 {
  49 }
  50
  51 void SketchPlugin_Circle::initDerivedClassAttributes()
  52 {
  53   data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::typeId());
  54   data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
  55   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  56   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  57
  58   data()->addAttribute(CIRCLE_TYPE(), ModelAPI_AttributeString::typeId());
  59   data()->addAttribute(FIRST_POINT_ID(), GeomDataAPI_Point2D::typeId());
  60   data()->addAttribute(SECOND_POINT_ID(), GeomDataAPI_Point2D::typeId());
  61   data()->addAttribute(THIRD_POINT_ID(), GeomDataAPI_Point2D::typeId());
  62   std::dynamic_pointer_cast<ModelAPI_AttributeString>(
  63       data()->attribute(CIRCLE_TYPE()))->setValue(CIRCLE_TYPE_CENTER_AND_RADIUS());
  64 }
  65
  66 void SketchPlugin_Circle::execute()
  67 {
  68   SketchPlugin_Sketch* aSketch = sketch();
  69   if (aSketch) {
  70     std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
  71
  72     // compute a circle point in 3D view
  73     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  74         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
  75     AttributeDoublePtr aRadiusAttr =
  76       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(RADIUS_ID()));
  77     if (aCenterAttr->isInitialized() && aRadiusAttr->isInitialized()) {
  78       std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  79       //std::cout<<"Execute circle "<<aCenter->x()<<" "<<aCenter->y()<<" "<<aCenter->z()<<std::endl;
  80       // make a visible point
  81       SketchPlugin_Sketch::createPoint2DResult(this, sketch(), CENTER_ID(), 0);
  82
  83       // make a visible circle
  84       std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
  85         aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
  86       std::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
  87       // compute the circle radius
  88       double aRadius = aRadiusAttr->value();
  89
  90       std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircle(
  91         aCenter, aNormal, aRadius);
  92       aShapes.push_back(aCircleShape);
  93       std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
  94         data(), 1);
  95       aConstr2->setShape(aCircleShape);
  96       aConstr2->setIsInHistory(false);
  97       setResult(aConstr2, 1);
  98     }
  99   }
 100 }
 101
 102 AISObjectPtr SketchPlugin_Circle::getAISObject(AISObjectPtr thePrevious)
 103 {
 104   SketchPlugin_Sketch* aSketch = sketch();
 105   if (aSketch && !isFeatureValid()) {
 106     // compute a circle point in 3D view
 107     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 108         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 109     AttributeDoublePtr aRadiusAttr =
 110         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(attribute(RADIUS_ID()));
 111     if (aCenterAttr->isInitialized() && aRadiusAttr->isInitialized()) {
 112         std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
 113
 114         // make a visible circle
 115         std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 116             aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
 117         std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
 118
 119         double aRadius = aRadiusAttr->value();
 120         std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircle(
 121             aCenter, aNormal, aRadius);
 122         if (aCircleShape && aRadius != 0) {
 123           std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
 124           // make a visible point
 125           std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
 126           aShapes.push_back(aCenterPointShape);
 127           aShapes.push_back(aCircleShape);
 128
 129           std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
 130           AISObjectPtr anAIS = thePrevious;
 131           if (!anAIS)
 132             anAIS = AISObjectPtr(new GeomAPI_AISObject);
 133           anAIS->createShape(aCompound);
 134           anAIS->setWidth(3);
 135           return anAIS;
 136         }
 137     }
 138   }
 139   return AISObjectPtr();
 140 }
 141
 142 bool SketchPlugin_Circle::isFeatureValid()
 143 {
 144   std::shared_ptr<GeomDataAPI_Point2D> aCenter =
 145       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 146   std::shared_ptr<GeomDataAPI_Point2D> aFirstPnt =
 147       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(FIRST_POINT_ID()));
 148   std::shared_ptr<GeomDataAPI_Point2D> aSecondPnt =
 149       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(SECOND_POINT_ID()));
 150   std::shared_ptr<GeomDataAPI_Point2D> aThirdPnt =
 151       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(THIRD_POINT_ID()));
 152
 153   return aCenter->isInitialized() && aFirstPnt->isInitialized() &&
 154          aSecondPnt->isInitialized() && aThirdPnt->isInitialized();
 155 }
 156
 157 void SketchPlugin_Circle::move(double theDeltaX, double theDeltaY)
 158 {
 159   std::shared_ptr<ModelAPI_Data> aData = data();
 160   if (!aData->isValid())
 161     return;
 162
 163   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 164       aData->attribute(CENTER_ID()));
 165   aPoint->move(theDeltaX, theDeltaY);
 166
 167   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(FIRST_POINT_ID()));
 168   aPoint->move(theDeltaX, theDeltaY);
 169   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SECOND_POINT_ID()));
 170   aPoint->move(theDeltaX, theDeltaY);
 171   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(THIRD_POINT_ID()));
 172   aPoint->move(theDeltaX, theDeltaY);
 173 }
 174
 175 bool SketchPlugin_Circle::isFixed() {
 176   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 177 }
 178
 179 void SketchPlugin_Circle::attributeChanged(const std::string& theID) {
 180   // the second condition for unability to move external segments anywhere
 181   if (theID == EXTERNAL_ID() || isFixed()) {
 182     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 183     // update arguments due to the selection value
 184     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 185       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 186       std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
 187       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 188         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 189       aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
 190       real(RADIUS_ID())->setValue(aCirc->radius());
 191     }
 192   }
 193   else if (theID == CENTER_ID() || theID == RADIUS_ID()) {
 194     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 195       data()->attribute(CIRCLE_TYPE()))->value();
 196     if (aType == CIRCLE_TYPE_THREE_POINTS() && lastResult())  // adjust data from the solver
 197       adjustThreePoints();
 198   } else if (theID == FIRST_POINT_ID() || theID == SECOND_POINT_ID() || theID == THIRD_POINT_ID()) {
 199     // support the center and radius attributes enev in other mode: solver uses them
 200     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 201       data()->attribute(CIRCLE_TYPE()))->value();
 202     if (aType == CIRCLE_TYPE_CENTER_AND_RADIUS())
 203       return;
 204     data()->blockSendAttributeUpdated(true); // to modify two attributes at once
 205     std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
 206     int aNbInitialized = 0;
 207     for (int i = 1; i <= 3; ++i) {
 208       std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
 209           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
 210       if (aCurPnt->isInitialized())
 211         aPoints[aNbInitialized++] = aCurPnt->pnt();
 212     }
 213
 214     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 215         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 216     AttributeDoublePtr aRadiusAttr =
 217       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(RADIUS_ID()));
 218
 219     if (aNbInitialized == 1)
 220       aCenterAttr->setValue(aPoints[0]->x(), aPoints[0]->y());
 221     else if (aNbInitialized == 2) {
 222       std::shared_ptr<GeomAPI_XY> aCoord =
 223           aPoints[0]->xy()->added(aPoints[1]->xy())->multiplied(0.5);
 224       double aRadius = aPoints[0]->distance(aPoints[1]) * 0.5;
 225       aCenterAttr->setValue(aCoord->x(), aCoord->y());
 226       aRadiusAttr->setValue(aRadius);
 227     } else {
 228       std::shared_ptr<GeomAPI_Circ2d> aCircle(
 229           new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
 230
 231       std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
 232       if (aCenter) {
 233         double aRadius = aCircle->radius();
 234         aCenterAttr->setValue(aCenter->x(), aCenter->y());
 235         aRadiusAttr->setValue(aRadius);
 236       }
 237     }
 238     data()->blockSendAttributeUpdated(false, false);
 239
 240   } else if (theID == CIRCLE_TYPE()) { // if switched to 3 points mode, adjust the needed attributes
 241     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 242       data()->attribute(CIRCLE_TYPE()))->value();
 243     if (aType == CIRCLE_TYPE_THREE_POINTS()) {
 244       adjustThreePoints();
 245     }
 246   }
 247 }
 248
 249 void SketchPlugin_Circle::adjustThreePoints()
 250 {
 251   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 252       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 253   if (!aCenterAttr->isInitialized())
 254     return;
 255   AttributeDoublePtr aRadiusAttr =
 256     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(attribute(RADIUS_ID()));
 257   if (!aRadiusAttr->isInitialized())
 258     return;
 259
 260   data()->blockSendAttributeUpdated(true);
 261   std::shared_ptr<GeomDataAPI_Point2D> aFirstPnt =
 262       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(FIRST_POINT_ID()));
 263   std::shared_ptr<GeomDataAPI_Point2D> aSecondPnt =
 264       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(SECOND_POINT_ID()));
 265   std::shared_ptr<GeomDataAPI_Point2D> aThirdPnt =
 266       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(THIRD_POINT_ID()));
 267   double aRadius = aRadiusAttr->value();
 268
 269   if (fabs(aFirstPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance ||
 270       fabs(aSecondPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance ||
 271       fabs(aThirdPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance) {
 272     aFirstPnt->setValue(aCenterAttr->x() + aRadius, aCenterAttr->y());
 273     aSecondPnt->setValue(aCenterAttr->x(), aCenterAttr->y() + aRadius);
 274     aThirdPnt->setValue(aCenterAttr->x() - aRadius, aCenterAttr->y());
 275   }
 276   data()->blockSendAttributeUpdated(false, false);
 277 }