src/SketchPlugin/SketchPlugin_Projection.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_Projection.cpp
   4 // Created: 07 May 2014
   5 // Author:  Artem ZHIDKOV
   6
   7 #include <SketchPlugin_Projection.h>
   8
   9 #include <SketchPlugin_Arc.h>
  10 #include <SketchPlugin_Circle.h>
  11 #include <SketchPlugin_Line.h>
  12 #include <SketchPlugin_Sketch.h>
  13 #include <SketchPlugin_ConstraintRigid.h>
  14
  15 #include <ModelAPI_AttributeRefAttr.h>
  16 #include <ModelAPI_AttributeSelection.h>
  17 #include <ModelAPI_AttributeDouble.h>
  18 #include <ModelAPI_ResultConstruction.h>
  19 #include <ModelAPI_Session.h>
  20 #include <ModelAPI_Validator.h>
  21 #include <ModelAPI_Tools.h>
  22
  23 #include <GeomAPI_Circ.h>
  24 #include <GeomAPI_Edge.h>
  25 #include <GeomAPI_Lin.h>
  26 #include <GeomAPI_Pnt.h>
  27 #include <GeomAPI_Pnt2d.h>
  28 #include <GeomAlgoAPI_EdgeBuilder.h>
  29 #include <GeomDataAPI_Point2D.h>
  30
  31 #include <cmath>
  32
  33 static const double tolerance = 1.e-7;
  34
  35 SketchPlugin_Projection::SketchPlugin_Projection()
  36     : SketchPlugin_SketchEntity(),
  37       myIsComputing(false)
  38 {
  39 }
  40
  41 void SketchPlugin_Projection::initDerivedClassAttributes()
  42 {
  43   data()->addAttribute(EXTERNAL_FEATURE_ID(), ModelAPI_AttributeSelection::typeId());
  44   data()->addAttribute(PROJECTED_FEATURE_ID(), ModelAPI_AttributeRefAttr::typeId());
  45   data()->attribute(PROJECTED_FEATURE_ID())->setIsArgument(false);
  46
  47   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  48   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  49
  50   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), AUXILIARY_ID());
  51 }
  52
  53 void SketchPlugin_Projection::execute()
  54 {
  55   AttributeRefAttrPtr aRefAttr = data()->refattr(PROJECTED_FEATURE_ID());
  56   if (!aRefAttr || !aRefAttr->isInitialized())
  57     return;
  58   FeaturePtr aProjection = ModelAPI_Feature::feature(aRefAttr->object());
  59
  60   if (!lastResult().get() && aProjection->lastResult().get()) {
  61     ResultConstructionPtr aConstr = document()->createConstruction(data());
  62     aConstr->setShape(aProjection->lastResult()->shape());
  63     aConstr->setIsInHistory(false);
  64     aConstr->setDisplayed(false);
  65     setResult(aConstr);
  66
  67     aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
  68   }
  69 }
  70
  71 void SketchPlugin_Projection::move(double theDeltaX, double theDeltaY)
  72 {
  73   // feature cannot be moved
  74 }
  75
  76 void SketchPlugin_Projection::attributeChanged(const std::string& theID)
  77 {
  78   if ((theID == EXTERNAL_FEATURE_ID() || theID == EXTERNAL_ID()) && !myIsComputing) {
  79     myIsComputing = true;
  80     computeProjection(theID);
  81     myIsComputing = false;
  82   }
  83 }
  84
  85 void SketchPlugin_Projection::computeProjection(const std::string& theID)
  86 {
  87   AttributeSelectionPtr aExtFeature =
  88       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(attribute(EXTERNAL_FEATURE_ID()));
  89
  90   std::shared_ptr<GeomAPI_Edge> anEdge;
  91   if (aExtFeature && aExtFeature->value() && aExtFeature->value()->isEdge()) {
  92     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aExtFeature->value()));
  93   } else if (aExtFeature->context() && aExtFeature->context()->shape() && aExtFeature->context()->shape()->isEdge()) {
  94     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aExtFeature->context()->shape()));
  95   }
  96   if (!anEdge.get())
  97     return;
  98
  99   AttributeRefAttrPtr aRefAttr = data()->refattr(PROJECTED_FEATURE_ID());
 100   FeaturePtr aProjection;
 101   if (aRefAttr && aRefAttr->isInitialized())
 102     aProjection = ModelAPI_Feature::feature(aRefAttr->object());
 103
 104   // if the type of feature differs with already selected, remove it and create once again
 105   bool hasPrevProj = aProjection.get() != 0;
 106   if (hasPrevProj) {
 107     if ((anEdge->isLine() && aProjection->getKind() != SketchPlugin_Line::ID()) ||
 108         (anEdge->isCircle() && aProjection->getKind() != SketchPlugin_Circle::ID()) ||
 109         (anEdge->isArc() && aProjection->getKind() != SketchPlugin_Arc::ID())) {
 110       DocumentPtr aDoc = sketch()->document();
 111
 112       std::set<FeaturePtr> aFeaturesToBeRemoved;
 113       aFeaturesToBeRemoved.insert(aProjection);
 114       ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToBeRemoved);
 115       aProjection = FeaturePtr();
 116       aRefAttr->setObject(aProjection);
 117     }
 118   }
 119
 120   std::shared_ptr<GeomAPI_Pln> aSketchPlane = sketch()->plane();
 121
 122   ResultConstructionPtr aResult =
 123       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(lastResult());
 124   if (aResult && aResult->shape()) {
 125     aResult->setShape(std::shared_ptr<GeomAPI_Edge>());
 126     aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
 127   }
 128
 129   if (anEdge->isLine()) {
 130     std::shared_ptr<GeomAPI_Pnt> aFirst = aSketchPlane->project(anEdge->firstPoint());
 131     std::shared_ptr<GeomAPI_Pnt> aLast = aSketchPlane->project(anEdge->lastPoint());
 132
 133     std::shared_ptr<GeomAPI_Pnt2d> aFirstInSketch = sketch()->to2D(aFirst);
 134     std::shared_ptr<GeomAPI_Pnt2d> aLastInSketch = sketch()->to2D(aLast);
 135     if (aFirstInSketch->distance(aLastInSketch) < tolerance)
 136       return; // line is semi-orthogonal to the sketch plane
 137
 138     if (!hasPrevProj)
 139       aProjection = sketch()->addFeature(SketchPlugin_Line::ID());
 140
 141     // update attributes of projection
 142     std::shared_ptr<GeomDataAPI_Point2D> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 143         aProjection->attribute(SketchPlugin_Line::START_ID()));
 144     std::shared_ptr<GeomDataAPI_Point2D> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 145         aProjection->attribute(SketchPlugin_Line::END_ID()));
 146     aStartPnt->setValue(aFirstInSketch);
 147     aEndPnt->setValue(aLastInSketch);
 148   }
 149   else if (anEdge->isCircle()) {
 150     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
 151     double aRadius = aCircle->radius();
 152
 153     std::shared_ptr<GeomAPI_Pnt> aCenter = aSketchPlane->project(aCircle->center());
 154     std::shared_ptr<GeomAPI_Pnt2d> aCenterInSketch = sketch()->to2D(aCenter);
 155
 156     if (!hasPrevProj)
 157       aProjection = sketch()->addFeature(SketchPlugin_Circle::ID());
 158
 159     // update attributes of projection
 160     std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 161         aProjection->attribute(SketchPlugin_Circle::CENTER_ID()));
 162     aCenterPnt->setValue(aCenterInSketch);
 163     aProjection->real(SketchPlugin_Circle::RADIUS_ID())->setValue(aRadius);
 164   }
 165   else if (anEdge->isArc()) {
 166     std::shared_ptr<GeomAPI_Pnt> aFirst = aSketchPlane->project(anEdge->firstPoint());
 167     std::shared_ptr<GeomAPI_Pnt> aLast = aSketchPlane->project(anEdge->lastPoint());
 168     std::shared_ptr<GeomAPI_Pnt2d> aFirstInSketch = sketch()->to2D(aFirst);
 169     std::shared_ptr<GeomAPI_Pnt2d> aLastInSketch = sketch()->to2D(aLast);
 170
 171     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
 172     std::shared_ptr<GeomAPI_Pnt> aCenter = aSketchPlane->project(aCircle->center());
 173     std::shared_ptr<GeomAPI_Pnt2d> aCenterInSketch = sketch()->to2D(aCenter);
 174
 175     if (!hasPrevProj)
 176       aProjection = sketch()->addFeature(SketchPlugin_Arc::ID());
 177
 178     // update attributes of projection
 179     std::shared_ptr<GeomDataAPI_Point2D> aCenterPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 180         aProjection->attribute(SketchPlugin_Arc::CENTER_ID()));
 181     std::shared_ptr<GeomDataAPI_Point2D> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 182         aProjection->attribute(SketchPlugin_Arc::START_ID()));
 183     std::shared_ptr<GeomDataAPI_Point2D> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 184         aProjection->attribute(SketchPlugin_Arc::END_ID()));
 185     aStartPnt->setValue(aFirstInSketch);
 186     aEndPnt->setValue(aLastInSketch);
 187     aCenterPnt->setValue(aCenterInSketch);
 188   }
 189
 190   aProjection->boolean(COPY_ID())->setValue(true);
 191   aProjection->execute();
 192   aRefAttr->setObject(aProjection);
 193
 194   if (!hasPrevProj) {
 195     FeaturePtr aFixed = sketch()->addFeature(SketchPlugin_ConstraintRigid::ID());
 196     aFixed->refattr(SketchPlugin_Constraint::ENTITY_A())->setObject(aProjection->lastResult());
 197     aFixed->execute();
 198   }
 199
 200   if (theID == EXTERNAL_FEATURE_ID()) {
 201     selection(EXTERNAL_ID())->setValue(aExtFeature->context(), aExtFeature->value());
 202
 203     if (aResult) {
 204       aResult->setShape(aProjection->lastResult()->shape());
 205       setResult(aResult);
 206       aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
 207     }
 208   }
 209 }