src/SketchPlugin/SketchPlugin_MacroEllipse.cpp

   1 // Copyright (C) 2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 // File:        SketchPlugin_MacroEllipse.cpp
  22 // Created:     26 April 2017
  23 // Author:      Artem ZHIDKOV
  24
  25 #include <SketchPlugin_MacroEllipse.h>
  26
  27 #include <SketchPlugin_Ellipse.h>
  28 #include <SketchPlugin_Tools.h>
  29 #include <SketchPlugin_Sketch.h>
  30
  31 #include <ModelAPI_AttributeDouble.h>
  32 #include <ModelAPI_AttributeRefAttr.h>
  33 #include <ModelAPI_EventReentrantMessage.h>
  34 #include <ModelAPI_Session.h>
  35 #include <ModelAPI_Validator.h>
  36 #include <ModelAPI_Events.h>
  37
  38 #include <GeomDataAPI_Point2D.h>
  39
  40 #include <GeomAPI_Dir2d.h>
  41 #include <GeomAPI_Pnt2d.h>
  42 #include <GeomAPI_Ellipse2d.h>
  43 #include <GeomAPI_Vertex.h>
  44
  45 #include <GeomAlgoAPI_CompoundBuilder.h>
  46 #include <GeomAlgoAPI_EdgeBuilder.h>
  47 #include <GeomAlgoAPI_PointBuilder.h>
  48
  49
  50 SketchPlugin_MacroEllipse::SketchPlugin_MacroEllipse()
  51 : SketchPlugin_SketchEntity(),
  52   myMajorRadius(0.0),
  53   myMinorRadius(0.0)
  54 {
  55 }
  56
  57 void SketchPlugin_MacroEllipse::initAttributes()
  58 {
  59   data()->addAttribute(CENTER_POINT_ID(), GeomDataAPI_Point2D::typeId());
  60   data()->addAttribute(CENTER_POINT_REF_ID(), ModelAPI_AttributeRefAttr::typeId());
  61   data()->addAttribute(MAJOR_AXIS_POINT_ID(), GeomDataAPI_Point2D::typeId());
  62   data()->addAttribute(MAJOR_AXIS_POINT_REF_ID(), ModelAPI_AttributeRefAttr::typeId());
  63   data()->addAttribute(PASSED_POINT_ID(), GeomDataAPI_Point2D::typeId());
  64   data()->addAttribute(PASSED_POINT_REF_ID(), ModelAPI_AttributeRefAttr::typeId());
  65
  66   data()->addAttribute(MAJOR_RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
  67   data()->addAttribute(MINOR_RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
  68   data()->addAttribute(AUXILIARY_ID(), ModelAPI_AttributeBoolean::typeId());
  69
  70   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), CENTER_POINT_REF_ID());
  71   ModelAPI_Session::get()->validators()->
  72       registerNotObligatory(getKind(), MAJOR_AXIS_POINT_REF_ID());
  73   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), PASSED_POINT_REF_ID());
  74 }
  75
  76 void SketchPlugin_MacroEllipse::execute()
  77 {
  78   FeaturePtr anEllipse = createEllipseFeature();
  79   constraintsForEllipse(anEllipse);
  80
  81   // message to init reentrant operation
  82   static Events_ID anId = ModelAPI_EventReentrantMessage::eventId();
  83   ReentrantMessagePtr aMessage(new ModelAPI_EventReentrantMessage(anId, this));
  84   aMessage->setCreatedFeature(anEllipse);
  85   Events_Loop::loop()->send(aMessage);
  86 }
  87
  88 void SketchPlugin_MacroEllipse::attributeChanged(const std::string& theID)
  89 {
  90   static const int NB_POINTS = 3;
  91   std::string aPointAttrName[NB_POINTS] = { CENTER_POINT_ID(),
  92                                             MAJOR_AXIS_POINT_ID(),
  93                                             PASSED_POINT_ID() };
  94   std::string aPointRefName[NB_POINTS] = { CENTER_POINT_REF_ID(),
  95                                            MAJOR_AXIS_POINT_REF_ID(),
  96                                            PASSED_POINT_REF_ID() };
  97
  98   int aNbInitialized = 0;
  99   std::shared_ptr<GeomAPI_Pnt2d> anEllipsePoints[NB_POINTS];
 100
 101   for (int aPntIndex = 0; aPntIndex < NB_POINTS; ++aPntIndex) {
 102     AttributePtr aPointAttr = attribute(aPointAttrName[aPntIndex]);
 103     if (!aPointAttr->isInitialized())
 104       continue;
 105
 106     AttributeRefAttrPtr aPointRef = refattr(aPointRefName[aPntIndex]);
 107     // calculate ellipse parameters
 108     std::shared_ptr<GeomAPI_Pnt2d> aPassedPoint;
 109     std::shared_ptr<GeomAPI_Shape> aTangentCurve;
 110     SketchPlugin_Tools::convertRefAttrToPointOrTangentCurve(
 111         aPointRef, aPointAttr, aTangentCurve, aPassedPoint);
 112
 113     anEllipsePoints[aNbInitialized++] = aPassedPoint;
 114   }
 115
 116   std::shared_ptr<GeomAPI_Ellipse2d> anEllipse;
 117   if (aNbInitialized == 2) {
 118     std::shared_ptr<GeomAPI_Dir2d> aXDir(new GeomAPI_Dir2d(
 119         anEllipsePoints[1]->x() - anEllipsePoints[0]->x(),
 120         anEllipsePoints[1]->y() - anEllipsePoints[0]->y()));
 121     double aMajorRad = anEllipsePoints[1]->distance(anEllipsePoints[0]);
 122     anEllipse = std::shared_ptr<GeomAPI_Ellipse2d>(
 123         new GeomAPI_Ellipse2d(anEllipsePoints[0], aXDir, aMajorRad, 0.5 * aMajorRad));
 124   } else if (aNbInitialized == 3) {
 125     anEllipse = std::shared_ptr<GeomAPI_Ellipse2d>(
 126         new GeomAPI_Ellipse2d(anEllipsePoints[0], anEllipsePoints[1], anEllipsePoints[2]));
 127   }
 128
 129   if (!anEllipse || anEllipse->implPtr<void>() == 0)
 130     return;
 131
 132   myCenter = anEllipse->center();
 133   myFocus = anEllipse->firstFocus();
 134   myMajorRadius = anEllipse->majorRadius();
 135   myMinorRadius = anEllipse->minorRadius();
 136
 137   AttributeDoublePtr aMajorRadiusAttr = real(MAJOR_RADIUS_ID());
 138   AttributeDoublePtr aMinorRadiusAttr = real(MINOR_RADIUS_ID());
 139
 140   bool aWasBlocked = data()->blockSendAttributeUpdated(true);
 141   // center attribute is used in processEvent() to set reference to reentrant arc
 142   std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_POINT_ID()))->setValue(myCenter);
 143   aMajorRadiusAttr->setValue(myMajorRadius);
 144   aMinorRadiusAttr->setValue(myMinorRadius);
 145   data()->blockSendAttributeUpdated(aWasBlocked, false);
 146 }
 147
 148 std::string SketchPlugin_MacroEllipse::processEvent(
 149                                               const std::shared_ptr<Events_Message>& theMessage)
 150 {
 151   std::string aFilledAttributeName;
 152
 153   ReentrantMessagePtr aReentrantMessage =
 154         std::dynamic_pointer_cast<ModelAPI_EventReentrantMessage>(theMessage);
 155   if (aReentrantMessage) {
 156     FeaturePtr aCreatedFeature = aReentrantMessage->createdFeature();
 157     ObjectPtr anObject = aReentrantMessage->selectedObject();
 158     AttributePtr anAttribute = aReentrantMessage->selectedAttribute();
 159     std::shared_ptr<GeomAPI_Pnt2d> aClickedPoint = aReentrantMessage->clickedPoint();
 160
 161     if (aClickedPoint && (anObject || anAttribute)) {
 162       aFilledAttributeName = CENTER_POINT_ID();
 163       std::string aReferenceAttributeName = CENTER_POINT_REF_ID();
 164
 165       // fill 2d point attribute
 166       AttributePoint2DPtr aPointAttr =
 167           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(aFilledAttributeName));
 168       aPointAttr->setValue(aClickedPoint);
 169
 170       // fill reference attribute
 171       AttributeRefAttrPtr aRefAttr =
 172           std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(attribute(aReferenceAttributeName));
 173       if (anAttribute) {
 174         if (!anAttribute->owner() || !anAttribute->owner()->data()->isValid()) {
 175           if (aCreatedFeature && anAttribute->id() == CENTER_POINT_ID())
 176             anAttribute = aCreatedFeature->attribute(SketchPlugin_Ellipse::CENTER_ID());
 177         }
 178         aRefAttr->setAttr(anAttribute);
 179       }
 180       else if (anObject.get()) {
 181         // if presentation of previous reentrant macro arc is used, the object is invalid,
 182         // we should use result of previous feature of the message(Arc)
 183         if (!anObject->data()->isValid())
 184           anObject = aCreatedFeature->lastResult();
 185         aRefAttr->setObject(anObject);
 186       }
 187     }
 188     Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
 189   }
 190   return aFilledAttributeName;
 191 }
 192
 193 void SketchPlugin_MacroEllipse::constraintsForEllipse(FeaturePtr theEllipseFeature)
 194 {
 195   // Create constraints.
 196   SketchPlugin_Tools::createConstraint(
 197       this, CENTER_POINT_REF_ID(),
 198       theEllipseFeature->attribute(SketchPlugin_Ellipse::CENTER_ID()),
 199       ObjectPtr(), false);
 200   SketchPlugin_Tools::createConstraint(
 201       this, MAJOR_AXIS_POINT_REF_ID(), AttributePtr(),
 202       theEllipseFeature->lastResult(), true);
 203   SketchPlugin_Tools::createConstraint(
 204       this, PASSED_POINT_REF_ID(), AttributePtr(),
 205       theEllipseFeature->lastResult(), true);
 206 }
 207
 208 FeaturePtr SketchPlugin_MacroEllipse::createEllipseFeature()
 209 {
 210   FeaturePtr aEllipseFeature = sketch()->addFeature(SketchPlugin_Ellipse::ID());
 211
 212   AttributePoint2DPtr aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 213       aEllipseFeature->attribute(SketchPlugin_Ellipse::CENTER_ID()));
 214   aCenterAttr->setValue(myCenter->x(), myCenter->y());
 215
 216   AttributePoint2DPtr aFocusAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 217       aEllipseFeature->attribute(SketchPlugin_Ellipse::FOCUS_ID()));
 218   aFocusAttr->setValue(myFocus->x(), myFocus->y());
 219
 220   aEllipseFeature->real(SketchPlugin_Ellipse::MAJOR_RADIUS_ID())->setValue(myMajorRadius);
 221   aEllipseFeature->real(SketchPlugin_Ellipse::MINOR_RADIUS_ID())->setValue(myMinorRadius);
 222
 223   aEllipseFeature->boolean(SketchPlugin_Ellipse::AUXILIARY_ID())->setValue(
 224       boolean(AUXILIARY_ID())->value());
 225
 226   aEllipseFeature->execute();
 227   return aEllipseFeature;
 228 }
 229
 230 AISObjectPtr SketchPlugin_MacroEllipse::getAISObject(AISObjectPtr thePrevious)
 231 {
 232   SketchPlugin_Sketch* aSketch = sketch();
 233   if (!aSketch || !myCenter || myMajorRadius == 0)
 234     return AISObjectPtr();
 235
 236   std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 237       aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
 238
 239   // Compute a ellipse in 3D view.
 240   std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(myCenter->x(), myCenter->y()));
 241   std::shared_ptr<GeomAPI_Pnt> aFocus(aSketch->to3D(myFocus->x(), myFocus->y()));
 242   std::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
 243   std::shared_ptr<GeomAPI_Dir> aMajorAxis(new GeomAPI_Dir(aFocus->x() - aCenter->x(),
 244       aFocus->y() - aCenter->y(), aFocus->z() - aCenter->z()));
 245
 246   std::shared_ptr<GeomAPI_Shape> anEllipseShape =
 247       GeomAlgoAPI_EdgeBuilder::ellipse(aCenter, aNormal, aMajorAxis, myMajorRadius, myMinorRadius);
 248   GeomShapePtr aCenterPointShape = GeomAlgoAPI_PointBuilder::vertex(aCenter);
 249   if (!anEllipseShape.get() || !aCenterPointShape.get())
 250     return AISObjectPtr();
 251
 252   std::list<std::shared_ptr<GeomAPI_Shape> > aShapes;
 253   aShapes.push_back(anEllipseShape);
 254   aShapes.push_back(aCenterPointShape);
 255
 256   std::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
 257   AISObjectPtr anAIS = thePrevious;
 258   if (!anAIS)
 259     anAIS.reset(new GeomAPI_AISObject());
 260   anAIS->createShape(aCompound);
 261   return anAIS;
 262 }