src/SketcherPrs/SketcherPrs_Tools.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_Tools.cpp
   4 // Created:     10 March 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_Tools.h"
   8
   9 #include <SketchPlugin_Constraint.h>
  10 #include <SketchPlugin_Point.h>
  11 #include <SketchPlugin_Circle.h>
  12 #include <SketchPlugin_Line.h>
  13 #include <SketchPlugin_Arc.h>
  14
  15 #include <ModelAPI_ResultConstruction.h>
  16 #include <ModelAPI_AttributeRefAttr.h>
  17 #include <ModelAPI_AttributeDouble.h>
  18
  19 #include <GeomDataAPI_Point2D.h>
  20 #include <GeomAPI_Lin2d.h>
  21
  22 #include <TopoDS.hxx>
  23 #include <TopoDS_Shape.hxx>
  24 #include <TopoDS_Vertex.hxx>
  25
  26 #include <BRep_Tool.hxx>
  27 #include <Precision.hxx>
  28
  29 namespace SketcherPrs_Tools {
  30
  31 ObjectPtr getResult(ModelAPI_Feature* theFeature, const std::string& theAttrName)
  32 {
  33   std::shared_ptr<ModelAPI_Data> aData = theFeature->data();
  34   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = aData->refattr(theAttrName);
  35   return anAttr->object();
  36 }
  37
  38
  39 std::shared_ptr<GeomAPI_Shape> getShape(ObjectPtr theObject)
  40 {
  41   ResultConstructionPtr aRes = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(theObject);
  42   if (aRes.get() != NULL) {
  43     return aRes->shape();
  44   }
  45   return std::shared_ptr<GeomAPI_Shape>();
  46 }
  47
  48
  49 std::shared_ptr<GeomAPI_Pnt2d> getPoint(ModelAPI_Feature* theFeature,
  50                                         const std::string& theAttribute)
  51 {
  52   std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
  53
  54   if (!theFeature->data())
  55     return std::shared_ptr<GeomAPI_Pnt2d>();
  56
  57   FeaturePtr aFeature;
  58   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
  59       ModelAPI_AttributeRefAttr>(theFeature->data()->attribute(theAttribute));
  60   if(!anAttr.get()) {
  61     return std::shared_ptr<GeomAPI_Pnt2d>();
  62   }
  63   aFeature = ModelAPI_Feature::feature(anAttr->object());
  64
  65   if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID())
  66     aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  67         aFeature->data()->attribute(SketchPlugin_Point::COORD_ID()));
  68
  69   else if (anAttr->attr()) {
  70     aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
  71   }
  72   if (aPointAttr.get() != NULL)
  73     return aPointAttr->pnt();
  74   return std::shared_ptr<GeomAPI_Pnt2d>();
  75 }
  76
  77 //*************************************************************************************
  78 /// Find an attribute of the given object which corresponds to a vetrex
  79 /// defined by a shape
  80 /// \param theObject an object
  81 /// \param theShape a vertex
  82 /// \param thePlane a projection plane (sketcher plane)
  83 std::shared_ptr<GeomDataAPI_Point2D> findGeomPoint(ObjectPtr theObject,
  84                                     const TopoDS_Shape& theShape,
  85                                     const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  86 {
  87   std::shared_ptr<GeomDataAPI_Point2D> aGeomPoint;
  88
  89   FeaturePtr anObjectFeature = ModelAPI_Feature::feature(theObject);
  90   if (anObjectFeature) {
  91     if (theShape.ShapeType() == TopAbs_VERTEX) {
  92       const TopoDS_Vertex& aShapeVertex = TopoDS::Vertex(theShape);
  93       if (!aShapeVertex.IsNull())  {
  94         gp_Pnt aShapePoint = BRep_Tool::Pnt(aShapeVertex);
  95         std::shared_ptr<GeomAPI_Pnt> aShapeGeomPnt = std::shared_ptr<GeomAPI_Pnt>(
  96             new GeomAPI_Pnt(aShapePoint.X(), aShapePoint.Y(), aShapePoint.Z()));
  97
  98         // find the given point in the feature attributes
  99         std::list<AttributePtr> anObjectAttiributes =
 100           anObjectFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 101         std::list<AttributePtr>::const_iterator anIt = anObjectAttiributes.begin(),
 102                                                 aLast = anObjectAttiributes.end();
 103         for (; anIt != aLast && !aGeomPoint; anIt++) {
 104           std::shared_ptr<GeomDataAPI_Point2D> anAttributePoint =
 105             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIt);
 106
 107           std::shared_ptr<GeomAPI_Pnt> anAttributePnt = thePlane->to3D(anAttributePoint->x(),
 108                                                                        anAttributePoint->y());
 109           if (anAttributePnt.get() &&
 110               anAttributePnt->distance(aShapeGeomPnt) < Precision::Confusion()) {
 111             aGeomPoint = anAttributePoint;
 112             break;
 113           }
 114         }
 115       }
 116     }
 117   }
 118   return aGeomPoint;
 119 }
 120
 121 //*************************************************************************************
 122 std::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
 123                                                      const std::string& theAttribute,
 124                                                      const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 125 {
 126   std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
 127
 128   if (!theData)
 129     return aPointAttr;
 130
 131   FeaturePtr aFeature;
 132   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 133       ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 134   if (anAttr) {
 135     if (anAttr->isObject()) {
 136       ObjectPtr anObject = anAttr->object();
 137       aFeature = ModelAPI_Feature::feature(anObject);
 138       if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID()) {
 139         // Attribute refers to a point
 140         aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 141                      aFeature->data()->attribute(SketchPlugin_Point::COORD_ID()));
 142       }
 143       else {
 144         // if the attribute refers on another object
 145         ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
 146         if (aRes.get()) {
 147           GeomShapePtr aShape = aRes->shape();
 148           if (aShape.get()) {
 149             TopoDS_Shape aTDSShape = aShape->impl<TopoDS_Shape>();
 150             aPointAttr = findGeomPoint(anObject, aTDSShape, thePlane);
 151           }
 152         }
 153       }
 154     }
 155     else if (anAttr->attr()) {
 156       // If attribute is a point
 157       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
 158     }
 159   }
 160   return aPointAttr;
 161 }
 162
 163 //*************************************************************************************
 164 FeaturePtr getFeatureLine(DataPtr theData,
 165                           const std::string& theAttribute)
 166 {
 167   FeaturePtr aLine;
 168   if (!theData)
 169     return aLine;
 170
 171   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 172     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
 173   if (anAttr) {
 174     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 175     if (aFeature && aFeature->getKind() == SketchPlugin_Line::ID()) {
 176       return aFeature;
 177     }
 178   }
 179   return aLine;
 180 }
 181
 182 //*************************************************************************************
 183 std::shared_ptr<GeomAPI_Pnt2d> getProjectionPoint(const FeaturePtr theLine,
 184                                                   const std::shared_ptr<GeomAPI_Pnt2d>& thePoint)
 185 {
 186   DataPtr aData = theLine->data();
 187   std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 188       aData->attribute(SketchPlugin_Line::START_ID()));
 189   std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 190       aData->attribute(SketchPlugin_Line::END_ID()));
 191
 192   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
 193   return aLin2d.project(thePoint);
 194 }
 195
 196
 197 static double MyArrowSize = 24.;
 198 double getArrowSize()
 199 {
 200   return MyArrowSize;
 201 }
 202
 203 void setArrowSize(double theSize)
 204 {
 205   MyArrowSize = theSize;
 206 }
 207
 208 static double MyTextHeight = 16;
 209 double getTextHeight()
 210 {
 211   return MyTextHeight;
 212 }
 213
 214 void setTextHeight(double theHeight)
 215 {
 216   MyTextHeight = theHeight;
 217 }
 218
 219 double getDefaultTextHeight()
 220 {
 221   return 16;
 222 }
 223
 224 double getFlyoutDistance(const ModelAPI_Feature* theConstraint)
 225 {
 226   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutPoint =
 227       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 228       const_cast<ModelAPI_Feature*>(theConstraint)->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 229
 230   return aFlyoutPoint->y();
 231 }
 232
 233 std::shared_ptr<GeomAPI_Pnt> getAnchorPoint(const ModelAPI_Feature* theConstraint,
 234                                             const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 235 {
 236   ModelAPI_Feature* aConstraint = const_cast<ModelAPI_Feature*>(theConstraint);
 237   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 238       aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 239   if (!aRefAttr || !aRefAttr->isObject() || !aRefAttr->object())
 240     return std::shared_ptr<GeomAPI_Pnt>();
 241
 242   FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 243   std::shared_ptr<GeomAPI_Pnt2d> aCenter;
 244   if (aFeature->getKind() == SketchPlugin_Arc::ID()) { // arc
 245     aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 246         aFeature->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
 247   } else if (aFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 248     aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 249         aFeature->attribute(SketchPlugin_Circle::CENTER_ID()))->pnt();
 250   } else
 251     return std::shared_ptr<GeomAPI_Pnt>();
 252
 253   std::shared_ptr<GeomAPI_Pnt2d> anOrigin(new GeomAPI_Pnt2d(0.0, 0.0));
 254   std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 255       aConstraint->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))->pnt();
 256   double aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 257       aConstraint->attribute(SketchPlugin_Constraint::VALUE()))->value();
 258   double aLen = aFlyoutPnt->distance(anOrigin);
 259   aRadius *= 1.001; // a gap to make point much closer to the circle, but not lying on it
 260   aFlyoutPnt->setX(aCenter->x() + aFlyoutPnt->x() * aRadius / aLen);
 261   aFlyoutPnt->setY(aCenter->y() + aFlyoutPnt->y() * aRadius / aLen);
 262   return thePlane->to3D(aFlyoutPnt->x(), aFlyoutPnt->y());
 263 }
 264
 265 };