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_Vertex.h>
  21 #include <GeomAPI_XY.h>
  22 #include <GeomDataAPI_Point2D.h>
  23 #include <GeomDataAPI_Dir.h>
  24 #include <GeomAlgoAPI_PointBuilder.h>
  25 #include <GeomAlgoAPI_EdgeBuilder.h>
  26 #include <GeomAlgoAPI_CompoundBuilder.h>
  27
  28 #include <cmath>
  29
  30 const double tolerance = 1e-7;
  31
  32 namespace {
  33   static const std::string& POINT_ID(int theIndex)
  34   {
  35     switch (theIndex) {
  36     case 1: return SketchPlugin_Circle::FIRST_POINT_ID();
  37     case 2: return SketchPlugin_Circle::SECOND_POINT_ID();
  38     case 3: return SketchPlugin_Circle::THIRD_POINT_ID();
  39     }
  40
  41     static const std::string DUMMY;
  42     return DUMMY;
  43   }
  44 }
  45
  46
  47 SketchPlugin_Circle::SketchPlugin_Circle()
  48     : SketchPlugin_SketchEntity()
  49 {
  50 }
  51
  52 void SketchPlugin_Circle::initDerivedClassAttributes()
  53 {
  54   data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::typeId());
  55   data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
  56   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  57   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  58
  59   data()->addAttribute(CIRCLE_TYPE(), ModelAPI_AttributeString::typeId());
  60   data()->addAttribute(FIRST_POINT_ID(), GeomDataAPI_Point2D::typeId());
  61   data()->addAttribute(SECOND_POINT_ID(), GeomDataAPI_Point2D::typeId());
  62   data()->addAttribute(THIRD_POINT_ID(), GeomDataAPI_Point2D::typeId());
  63   std::dynamic_pointer_cast<ModelAPI_AttributeString>(
  64       data()->attribute(CIRCLE_TYPE()))->setValue(CIRCLE_TYPE_CENTER_AND_RADIUS());
  65 }
  66
  67 void SketchPlugin_Circle::execute()
  68 {
  69   SketchPlugin_Sketch* aSketch = sketch();
  70   if (aSketch) {
  71     std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
  72
  73     // compute a circle point in 3D view
  74     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  75         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
  76     AttributeDoublePtr aRadiusAttr =
  77       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(RADIUS_ID()));
  78     if (aCenterAttr->isInitialized() && aRadiusAttr->isInitialized()) {
  79       std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
  80       //std::cout<<"Execute circle "<<aCenter->x()<<" "<<aCenter->y()<<" "<<aCenter->z()<<std::endl;
  81       // make a visible point
  82       SketchPlugin_Sketch::createPoint2DResult(this, sketch(), CENTER_ID(), 0);
  83
  84       // make a visible circle
  85       std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
  86         aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
  87       std::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
  88       // compute the circle radius
  89       double aRadius = aRadiusAttr->value();
  90
  91       std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircle(
  92         aCenter, aNormal, aRadius);
  93       aShapes.push_back(aCircleShape);
  94       std::shared_ptr<ModelAPI_ResultConstruction> aConstr2 = document()->createConstruction(
  95         data(), 1);
  96       aConstr2->setShape(aCircleShape);
  97       aConstr2->setIsInHistory(false);
  98       setResult(aConstr2, 1);
  99     }
 100   }
 101 }
 102
 103 AISObjectPtr SketchPlugin_Circle::getAISObject(AISObjectPtr thePrevious)
 104 {
 105   SketchPlugin_Sketch* aSketch = sketch();
 106   if (aSketch && !isFeatureValid()) {
 107     // compute a circle point in 3D view
 108     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 109         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 110     AttributeDoublePtr aRadiusAttr =
 111         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(attribute(RADIUS_ID()));
 112     if (aCenterAttr->isInitialized() && aRadiusAttr->isInitialized()) {
 113         std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
 114
 115         // make a visible circle
 116         std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 117             aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
 118         std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
 119
 120         double aRadius = aRadiusAttr->value();
 121         std::shared_ptr<GeomAPI_Shape> aCircleShape = GeomAlgoAPI_EdgeBuilder::lineCircle(
 122             aCenter, aNormal, aRadius);
 123         if (aCircleShape && aRadius != 0) {
 124           std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
 125           // make a visible point
 126           std::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
 127           aShapes.push_back(aCenterPointShape);
 128           aShapes.push_back(aCircleShape);
 129
 130           std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
 131           AISObjectPtr anAIS = thePrevious;
 132           if (!anAIS)
 133             anAIS = AISObjectPtr(new GeomAPI_AISObject);
 134           anAIS->createShape(aCompound);
 135           anAIS->setWidth(3);
 136           return anAIS;
 137         }
 138     }
 139   }
 140   return AISObjectPtr();
 141 }
 142
 143 bool SketchPlugin_Circle::isFeatureValid()
 144 {
 145   std::shared_ptr<GeomDataAPI_Point2D> aCenter =
 146       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 147   bool aValid = aCenter->isInitialized();
 148
 149   std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 150                                          data()->attribute(CIRCLE_TYPE()))->value();
 151   if (aType == CIRCLE_TYPE_THREE_POINTS()) {
 152     std::shared_ptr<GeomDataAPI_Point2D> aFirstPnt =
 153         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(FIRST_POINT_ID()));
 154     std::shared_ptr<GeomDataAPI_Point2D> aSecondPnt =
 155         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(SECOND_POINT_ID()));
 156     std::shared_ptr<GeomDataAPI_Point2D> aThirdPnt =
 157         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(THIRD_POINT_ID()));
 158     aValid = aValid &&
 159              aFirstPnt->isInitialized() &&
 160              aSecondPnt->isInitialized() &&
 161              aThirdPnt->isInitialized();
 162   }
 163   return aValid;
 164 }
 165
 166 void SketchPlugin_Circle::move(double theDeltaX, double theDeltaY)
 167 {
 168   std::shared_ptr<ModelAPI_Data> aData = data();
 169   if (!aData->isValid())
 170     return;
 171
 172   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 173       aData->attribute(CENTER_ID()));
 174   aPoint->move(theDeltaX, theDeltaY);
 175
 176   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(FIRST_POINT_ID()));
 177   aPoint->move(theDeltaX, theDeltaY);
 178   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SECOND_POINT_ID()));
 179   aPoint->move(theDeltaX, theDeltaY);
 180   aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(THIRD_POINT_ID()));
 181   aPoint->move(theDeltaX, theDeltaY);
 182 }
 183
 184 bool SketchPlugin_Circle::isFixed() {
 185   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 186 }
 187
 188 void SketchPlugin_Circle::attributeChanged(const std::string& theID) {
 189   // the second condition for unability to move external segments anywhere
 190   if (theID == EXTERNAL_ID() || isFixed()) {
 191     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 192     if (!aSelection) {
 193       // empty shape in selection shows that the shape is equal to context
 194       ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
 195       if (anExtRes)
 196         aSelection = anExtRes->shape();
 197     }
 198     // update arguments due to the selection value
 199     if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 200       std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 201       std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
 202       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 203         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 204       aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
 205       real(RADIUS_ID())->setValue(aCirc->radius());
 206     }
 207   }
 208   else if (theID == CENTER_ID() || theID == RADIUS_ID()) {
 209     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 210       data()->attribute(CIRCLE_TYPE()))->value();
 211     if (aType == CIRCLE_TYPE_THREE_POINTS() && lastResult())  // adjust data from the solver
 212       adjustThreePoints();
 213   } else if (theID == FIRST_POINT_ID() || theID == SECOND_POINT_ID() || theID == THIRD_POINT_ID()) {
 214     // support the center and radius attributes enev in other mode: solver uses them
 215     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 216       data()->attribute(CIRCLE_TYPE()))->value();
 217     if (aType == CIRCLE_TYPE_CENTER_AND_RADIUS())
 218       return;
 219     data()->blockSendAttributeUpdated(true); // to modify two attributes at once
 220     std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
 221     int aNbInitialized = 0;
 222     for (int i = 1; i <= 3; ++i) {
 223       std::shared_ptr<GeomDataAPI_Point2D> aCurPnt =
 224           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(POINT_ID(i)));
 225       if (aCurPnt->isInitialized())
 226         aPoints[aNbInitialized++] = aCurPnt->pnt();
 227     }
 228
 229     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 230         GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
 231     AttributeDoublePtr aRadiusAttr =
 232       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(RADIUS_ID()));
 233
 234     if (aNbInitialized == 1)
 235       aCenterAttr->setValue(aPoints[0]->x(), aPoints[0]->y());
 236     else if (aNbInitialized == 2) {
 237       std::shared_ptr<GeomAPI_XY> aCoord =
 238           aPoints[0]->xy()->added(aPoints[1]->xy())->multiplied(0.5);
 239       double aRadius = aPoints[0]->distance(aPoints[1]) * 0.5;
 240       aCenterAttr->setValue(aCoord->x(), aCoord->y());
 241       aRadiusAttr->setValue(aRadius);
 242     } else {
 243       std::shared_ptr<GeomAPI_Circ2d> aCircle(
 244           new GeomAPI_Circ2d(aPoints[0], aPoints[1], aPoints[2]));
 245
 246       std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCircle->center();
 247       if (aCenter) {
 248         double aRadius = aCircle->radius();
 249         aCenterAttr->setValue(aCenter->x(), aCenter->y());
 250         aRadiusAttr->setValue(aRadius);
 251       }
 252     }
 253     data()->blockSendAttributeUpdated(false, false);
 254
 255   } else if (theID == CIRCLE_TYPE()) { // if switched to 3 points mode, adjust the needed attributes
 256     std::string aType = std::dynamic_pointer_cast<ModelAPI_AttributeString>(
 257       data()->attribute(CIRCLE_TYPE()))->value();
 258     if (aType == CIRCLE_TYPE_THREE_POINTS()) {
 259       adjustThreePoints();
 260     }
 261   }
 262 }
 263
 264 void SketchPlugin_Circle::adjustThreePoints()
 265 {
 266   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 267       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 268   if (!aCenterAttr->isInitialized())
 269     return;
 270   AttributeDoublePtr aRadiusAttr =
 271     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(attribute(RADIUS_ID()));
 272   if (!aRadiusAttr->isInitialized())
 273     return;
 274
 275   data()->blockSendAttributeUpdated(true);
 276   std::shared_ptr<GeomDataAPI_Point2D> aFirstPnt =
 277       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(FIRST_POINT_ID()));
 278   std::shared_ptr<GeomDataAPI_Point2D> aSecondPnt =
 279       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(SECOND_POINT_ID()));
 280   std::shared_ptr<GeomDataAPI_Point2D> aThirdPnt =
 281       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(THIRD_POINT_ID()));
 282   double aRadius = aRadiusAttr->value();
 283
 284   if (fabs(aFirstPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance ||
 285       fabs(aSecondPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance ||
 286       fabs(aThirdPnt->pnt()->distance(aCenterAttr->pnt()) - aRadius) > tolerance) {
 287     aFirstPnt->setValue(aCenterAttr->x() + aRadius, aCenterAttr->y());
 288     aSecondPnt->setValue(aCenterAttr->x(), aCenterAttr->y() + aRadius);
 289     aThirdPnt->setValue(aCenterAttr->x() - aRadius, aCenterAttr->y());
 290   }
 291   data()->blockSendAttributeUpdated(false, false);
 292 }