src/SketcherPrs/SketcherPrs_Tools.cpp

   1 // Copyright (C) 2014-2019  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 email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketcherPrs_Tools.h"
  21
  22 #include <SketchPlugin_Constraint.h>
  23 #include <SketchPlugin_Point.h>
  24 #include <SketchPlugin_Circle.h>
  25 #include <SketchPlugin_Line.h>
  26 #include <SketchPlugin_Arc.h>
  27
  28 #include <ModelAPI_ResultConstruction.h>
  29 #include <ModelAPI_AttributeRefAttr.h>
  30 #include <ModelAPI_AttributeRefList.h>
  31 #include <ModelAPI_AttributeDouble.h>
  32 #include <ModelAPI_Events.h>
  33
  34 #include <ModelGeomAlgo_Point2D.h>
  35
  36 #include <Events_InfoMessage.h>
  37
  38 #include <GeomDataAPI_Point2D.h>
  39 #include <GeomAPI_Lin2d.h>
  40
  41 #include <TopoDS.hxx>
  42 #include <TopoDS_Shape.hxx>
  43 #include <TopoDS_Vertex.hxx>
  44
  45 #include <Prs3d_DimensionAspect.hxx>
  46
  47 #include <BRep_Tool.hxx>
  48 #include <Precision.hxx>
  49
  50 #include <AIS_Dimension.hxx>
  51
  52 namespace SketcherPrs_Tools {
  53
  54 static ParameterStyle MyStyle = ParameterValue;
  55
  56 void setParameterStyle(ParameterStyle theStyle)
  57 {
  58   MyStyle = theStyle;
  59 }
  60
  61 ParameterStyle parameterStyle()
  62 {
  63   return MyStyle;
  64 }
  65
  66 AttributePtr getAttribute(ModelAPI_Feature* theFeature, const std::string& theAttrName)
  67 {
  68   AttributePtr anAttribute;
  69   if (theFeature) {
  70     std::shared_ptr<ModelAPI_Data> aData = theFeature->data();
  71     if (aData.get() && aData->isValid()) { /// essential check as it is called in openGl thread
  72       std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = aData->refattr(theAttrName);
  73       if (!anAttr->isObject())
  74         anAttribute = anAttr->attr();
  75     }
  76   }
  77   return anAttribute;
  78 }
  79
  80 ObjectPtr getResult(ModelAPI_Feature* theFeature, const std::string& theAttrName)
  81 {
  82   ObjectPtr anObject;
  83   if (theFeature) {
  84     std::shared_ptr<ModelAPI_Data> aData = theFeature->data();
  85     if (aData.get() && aData->isValid()) { /// essential check as it is called in openGl thread
  86       std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = aData->refattr(theAttrName);
  87       if (anAttr.get())
  88         anObject = anAttr->object();
  89     }
  90   }
  91   return anObject;
  92 }
  93
  94
  95 std::shared_ptr<GeomAPI_Shape> getShape(ObjectPtr theObject)
  96 {
  97   ResultConstructionPtr aRes = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(theObject);
  98   if (!aRes.get()) {
  99     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
 100     if (aFeature.get())
 101       aRes = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aFeature->lastResult());
 102   }
 103   if (aRes.get() != NULL && aRes->data()->isValid()) {
 104     /// essential check as it is called in openGl thread
 105     return aRes->shape();
 106   }
 107   return std::shared_ptr<GeomAPI_Shape>();
 108 }
 109
 110
 111 std::shared_ptr<GeomAPI_Pnt2d> getPoint(ModelAPI_Feature* theFeature,
 112                                         const std::string& theAttribute)
 113 {
 114   std::shared_ptr<GeomDataAPI_Point2D> aPointAttr =
 115     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theFeature->attribute(theAttribute));
 116   if (!aPointAttr.get() || !aPointAttr->isInitialized()) {
 117     aPointAttr = ModelGeomAlgo_Point2D::getPointOfRefAttr(
 118                theFeature, theAttribute, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 119   }
 120   if (aPointAttr.get() != NULL)
 121     return aPointAttr->pnt();
 122   return std::shared_ptr<GeomAPI_Pnt2d>();
 123 }
 124
 125 //*************************************************************************************
 126 /// Find an attribute of the given object which corresponds to a vetrex
 127 /// defined by a shape
 128 /// \param theObject an object
 129 /// \param theShape a vertex
 130 /// \param thePlane a projection plane (sketcher plane)
 131 std::shared_ptr<GeomDataAPI_Point2D> findGeomPoint(ObjectPtr theObject,
 132                                     const TopoDS_Shape& theShape,
 133                                     const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 134 {
 135   std::shared_ptr<GeomDataAPI_Point2D> aGeomPoint;
 136
 137   FeaturePtr anObjectFeature = ModelAPI_Feature::feature(theObject);
 138   if (anObjectFeature) {
 139     if (theShape.ShapeType() == TopAbs_VERTEX) {
 140       const TopoDS_Vertex& aShapeVertex = TopoDS::Vertex(theShape);
 141       if (!aShapeVertex.IsNull())  {
 142         gp_Pnt aShapePoint = BRep_Tool::Pnt(aShapeVertex);
 143         std::shared_ptr<GeomAPI_Pnt> aShapeGeomPnt = std::shared_ptr<GeomAPI_Pnt>(
 144             new GeomAPI_Pnt(aShapePoint.X(), aShapePoint.Y(), aShapePoint.Z()));
 145
 146         // find the given point in the feature attributes
 147         std::list<AttributePtr> anObjectAttiributes =
 148           anObjectFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 149         std::list<AttributePtr>::const_iterator anIt = anObjectAttiributes.begin(),
 150                                                 aLast = anObjectAttiributes.end();
 151         for (; anIt != aLast && !aGeomPoint; anIt++) {
 152           std::shared_ptr<GeomDataAPI_Point2D> anAttributePoint =
 153             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIt);
 154
 155           std::shared_ptr<GeomAPI_Pnt> anAttributePnt = thePlane->to3D(anAttributePoint->x(),
 156                                                                        anAttributePoint->y());
 157           if (anAttributePnt.get() &&
 158               anAttributePnt->distance(aShapeGeomPnt) < Precision::Confusion()) {
 159             aGeomPoint = anAttributePoint;
 160             break;
 161           }
 162         }
 163       }
 164     }
 165   }
 166   return aGeomPoint;
 167 }
 168
 169 //*************************************************************************************
 170 std::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
 171                                                      const std::string& theAttribute,
 172                                                      const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 173 {
 174   std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
 175
 176   if (!theData.get() || !theData->isValid()) /// essential check as it is called in openGl thread
 177     return aPointAttr;
 178
 179   FeaturePtr aFeature;
 180   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 181       ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 182   if (anAttr) {
 183     if (anAttr->isObject()) {
 184       ObjectPtr anObject = anAttr->object();
 185       aFeature = ModelAPI_Feature::feature(anObject);
 186       if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID()) {
 187         // Attribute refers to a point
 188         aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 189                      aFeature->data()->attribute(SketchPlugin_Point::COORD_ID()));
 190       }
 191       else {
 192         // if the attribute refers on another object
 193         ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
 194         if (aRes.get()) {
 195           GeomShapePtr aShape = aRes->shape();
 196           if (aShape.get()) {
 197             TopoDS_Shape aTDSShape = aShape->impl<TopoDS_Shape>();
 198             aPointAttr = findGeomPoint(anObject, aTDSShape, thePlane);
 199           }
 200         }
 201       }
 202     }
 203     else if (anAttr->attr()) {
 204       // If attribute is a point
 205       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
 206     }
 207   }
 208   return aPointAttr;
 209 }
 210
 211 //*************************************************************************************
 212 std::list<ResultPtr> getFreePoints(const CompositeFeaturePtr& theSketch)
 213 {
 214   std::list<ResultPtr> aFreePoints;
 215   if (!theSketch)
 216     return aFreePoints;
 217
 218   AttributeRefListPtr aFeatures = theSketch->reflist(SketchPlugin_Sketch::FEATURES_ID());
 219   if (!aFeatures)
 220     return aFreePoints;
 221   std::list<ObjectPtr> anObjects = aFeatures->list();
 222   for (std::list<ObjectPtr>::iterator anObjIt = anObjects.begin();
 223        anObjIt != anObjects.end(); ++anObjIt) {
 224     FeaturePtr aCurrent = ModelAPI_Feature::feature(*anObjIt);
 225     if (aCurrent && aCurrent->getKind() == SketchPlugin_Point::ID()) {
 226       // check point is not referred by any constraints: the feature and result of point
 227       bool aIsFree = true;
 228       for(int aKind = 0; aIsFree && aKind < 2; aKind++) { // 0 for feature, 1 for result
 229         ObjectPtr aReferenced = aCurrent;
 230         if (aKind == 1)
 231           if (!aCurrent->results().empty())
 232             aReferenced = aCurrent->firstResult();
 233           else
 234             break;
 235         const std::set<AttributePtr>& aRefs = aReferenced->data()->refsToMe();
 236         std::set<AttributePtr>::iterator aRIt = aRefs.begin();
 237         for (; aRIt != aRefs.end(); ++aRIt) {
 238           FeaturePtr aRefFeat = ModelAPI_Feature::feature((*aRIt)->owner());
 239           std::shared_ptr<SketchPlugin_Constraint> aRefConstr =
 240               std::dynamic_pointer_cast<SketchPlugin_Constraint>(aRefFeat);
 241           if (aRefConstr) {
 242             aIsFree = false;
 243             break;
 244           }
 245         }
 246       }
 247       if (aIsFree)
 248         aFreePoints.push_back(aCurrent->lastResult());
 249     }
 250   }
 251   return aFreePoints;
 252 }
 253
 254 //*************************************************************************************
 255 FeaturePtr getFeatureLine(DataPtr theData,
 256                           const std::string& theAttribute)
 257 {
 258   FeaturePtr aLine;
 259   if (!theData.get() || !theData->isValid()) /// essential check as it is called in openGl thread)
 260     return aLine;
 261
 262   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 263     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 264   if (anAttr) {
 265     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 266     if (aFeature && aFeature->getKind() == SketchPlugin_Line::ID()) {
 267       return aFeature;
 268     }
 269   }
 270   return aLine;
 271 }
 272
 273 //*************************************************************************************
 274 std::shared_ptr<GeomAPI_Pnt2d> getProjectionPoint(const FeaturePtr theLine,
 275                                                   const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 276 {
 277   DataPtr aData = theLine->data();
 278   if (!aData.get() || !aData->isValid())
 279     return std::shared_ptr<GeomAPI_Pnt2d>();
 280
 281   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 282       aData->attribute(SketchPlugin_Line::START_ID()));
 283   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 284       aData->attribute(SketchPlugin_Line::END_ID()));
 285
 286   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
 287   return aLin2d.project(thePoint);
 288 }
 289
 290 static int MyPixelRatio = 1;
 291
 292 void setPixelRatio(int theRatio)
 293 {
 294   MyPixelRatio = theRatio;
 295 }
 296
 297 int pixelRatio()
 298 {
 299   return MyPixelRatio;
 300 }
 301
 302 static double MyArrowSize = 20;
 303
 304 double getArrowSize()
 305 {
 306   return MyArrowSize;
 307 }
 308
 309 void setArrowSize(double theSize)
 310 {
 311   MyArrowSize = theSize;
 312 }
 313
 314 int getDefaultArrowSize()
 315 {
 316   return 20;
 317 }
 318
 319 int getConfigArrowSize()
 320 {
 321   return Config_PropManager::integer("Visualization", "dimension_arrow_size");
 322 }
 323
 324 static double MyTextHeight = 16;
 325 double getTextHeight()
 326 {
 327   return MyTextHeight * MyPixelRatio;
 328 }
 329
 330 void setTextHeight(double theHeight)
 331 {
 332   MyTextHeight = theHeight;
 333 }
 334
 335 double getDefaultTextHeight()
 336 {
 337   return 16 * MyPixelRatio;
 338 }
 339
 340 double getConfigTextHeight()
 341 {
 342   return Config_PropManager::integer("Visualization", "dimension_value_size") * MyPixelRatio;
 343 }
 344
 345 double getFlyoutDistance(const ModelAPI_Feature* theConstraint)
 346 {
 347   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutPoint =
 348       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 349       const_cast<ModelAPI_Feature*>(
 350       theConstraint)->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 351   // for not initialized values return zero distance to avoid Presentation crash
 352   if (!aFlyoutPoint->isInitialized())
 353     return 0;
 354   return aFlyoutPoint->y();
 355 }
 356
 357 std::shared_ptr<GeomAPI_Pnt> getAnchorPoint(const ModelAPI_Feature* theConstraint,
 358                                             const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 359 {
 360   ModelAPI_Feature* aConstraint = const_cast<ModelAPI_Feature*>(theConstraint);
 361   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 362       aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 363   if (!aRefAttr || !aRefAttr->isObject() || !aRefAttr->object())
 364     return std::shared_ptr<GeomAPI_Pnt>();
 365
 366   FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 367   std::shared_ptr<GeomAPI_Pnt2d> aCenter;
 368   if (aFeature->getKind() == SketchPlugin_Arc::ID()) { // arc
 369     aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 370         aFeature->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
 371   } else if (aFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 372     aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 373         aFeature->attribute(SketchPlugin_Circle::CENTER_ID()))->pnt();
 374   } else
 375     return std::shared_ptr<GeomAPI_Pnt>();
 376
 377   std::shared_ptr<GeomAPI_Pnt2d> anOrigin(new GeomAPI_Pnt2d(0.0, 0.0));
 378   std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 379       aConstraint->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))->pnt();
 380   double aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 381       aConstraint->attribute(SketchPlugin_Constraint::VALUE()))->value();
 382   double aLen = aFlyoutPnt->distance(anOrigin);
 383   aRadius *= 1.001; // a gap to make point much closer to the circle, but not lying on it
 384   aFlyoutPnt->setX(aCenter->x() + aFlyoutPnt->x() * aRadius / aLen);
 385   aFlyoutPnt->setY(aCenter->y() + aFlyoutPnt->y() * aRadius / aLen);
 386   return thePlane->to3D(aFlyoutPnt->x(), aFlyoutPnt->y());
 387 }
 388
 389 void sendEmptyPresentationError(ModelAPI_Feature* theFeature, const std::string theError)
 390 {
 391   Events_InfoMessage("SketcherPrs_Tools",
 392     "An empty AIS presentation: SketcherPrs_LengthDimension").send();
 393   static const Events_ID anEvent = Events_Loop::eventByName(EVENT_EMPTY_AIS_PRESENTATION);
 394   std::shared_ptr<ModelAPI_Object> aConstraintPtr(theFeature);
 395   ModelAPI_EventCreator::get()->sendUpdated(aConstraintPtr, anEvent);
 396 }
 397 };