src/SketchPlugin/SketchPlugin_ConstraintRadius.cpp

   1 // File:    SketchPlugin_ConstraintRadius.cpp
   2 // Created: 26 May 2014
   3 // Author:  Artem ZHIDKOV
   4
   5 #include "SketchPlugin_ConstraintRadius.h"
   6
   7 #include <SketchPlugin_Arc.h>
   8 #include <SketchPlugin_Circle.h>
   9 #include <SketchPlugin_Point.h>
  10
  11 #include <ModelAPI_AttributeDouble.h>
  12 #include <ModelAPI_Data.h>
  13
  14 #include <GeomAPI_Pnt2d.h>
  15 #include <GeomAPI_Circ.h>
  16 #include <GeomDataAPI_Point2D.h>
  17 #include <GeomDataAPI_Dir.h>
  18
  19 #include <AIS_InteractiveObject.hxx>
  20 #include <AIS_RadiusDimension.hxx>
  21
  22 SketchPlugin_ConstraintRadius::SketchPlugin_ConstraintRadius()
  23 {
  24 }
  25
  26 void SketchPlugin_ConstraintRadius::initAttributes()
  27 {
  28   data()->addAttribute(CONSTRAINT_ATTR_VALUE,    ModelAPI_AttributeDouble::type());
  29   data()->addAttribute(CONSTRAINT_ATTR_ENTITY_A, ModelAPI_AttributeRefAttr::type());
  30   data()->addAttribute(CONSTRAINT_ATTR_FLYOUT_VALUE_PNT, GeomDataAPI_Point2D::type());
  31 }
  32
  33 void SketchPlugin_ConstraintRadius::execute()
  34 {
  35   if (data()->attribute(CONSTRAINT_ATTR_ENTITY_A)->isInitialized() &&
  36       !data()->attribute(CONSTRAINT_ATTR_VALUE)->isInitialized()) {
  37
  38     boost::shared_ptr<ModelAPI_AttributeRefAttr> aRef =
  39       boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(data()->attribute(CONSTRAINT_ATTR_ENTITY_A));
  40     FeaturePtr aFeature = aRef->feature();
  41     if (aFeature) {
  42       double aRadius = 0;
  43       boost::shared_ptr<ModelAPI_Data> aData = aFeature->data();
  44       if (aFeature->getKind() == SKETCH_CIRCLE_KIND) {
  45         AttributeDoublePtr anAttribute = boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>
  46                                             (aData->attribute(CIRCLE_ATTR_RADIUS));
  47         if (anAttribute)
  48           aRadius = anAttribute->value();
  49       }
  50       else if (aFeature->getKind() == SKETCH_ARC_KIND) {
  51         boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
  52           boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(ARC_ATTR_CENTER));
  53         boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
  54           boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(ARC_ATTR_START));
  55         if (aCenterAttr && aStartAttr)
  56           aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
  57       }
  58       boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr =
  59         boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CONSTRAINT_ATTR_VALUE));
  60       aValueAttr->setValue(aRadius);
  61     }
  62   }
  63 }
  64
  65 Handle(AIS_InteractiveObject) SketchPlugin_ConstraintRadius::getAISShape(
  66   Handle_AIS_InteractiveObject thePrevious)
  67 {
  68   Handle(AIS_InteractiveObject) anAIS = thePrevious;
  69   if (!sketch())
  70     return anAIS;
  71
  72   boost::shared_ptr<ModelAPI_Data> aData = data();
  73   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  74     boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(aData->attribute(CONSTRAINT_ATTR_ENTITY_A));
  75   if (!anAttr)
  76     return anAIS;
  77   FeaturePtr aFeature = anAttr->feature();
  78   std::string aKind = aFeature ? aFeature->getKind() : "";
  79   if (aKind != SKETCH_CIRCLE_KIND && aKind != SKETCH_ARC_KIND)
  80     return anAIS;
  81
  82   boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr =
  83           boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CONSTRAINT_ATTR_VALUE));
  84   double aValue = aValueAttr->value();
  85
  86   // an anchor point
  87   boost::shared_ptr<GeomDataAPI_Point2D> aAnchorAttr =
  88     boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CONSTRAINT_ATTR_FLYOUT_VALUE_PNT));
  89   if (!aAnchorAttr->isInitialized())
  90     return anAIS;
  91   boost::shared_ptr<GeomAPI_Pnt2d> anAnchor2D = aAnchorAttr->pnt();
  92   boost::shared_ptr<GeomAPI_Pnt> anAnchor = sketch()->to3D(anAnchor2D->x(), anAnchor2D->y());
  93
  94   aData = aFeature->data();
  95   boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
  96   double aRadius;
  97   if (aKind == SKETCH_CIRCLE_KIND) {
  98     aCenterAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CIRCLE_ATTR_CENTER));
  99     AttributeDoublePtr aCircRadius =
 100       boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CIRCLE_ATTR_RADIUS));
 101     aRadius = aCircRadius->value();
 102   }
 103   else if (aKind == SKETCH_ARC_KIND) {
 104     aCenterAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(ARC_ATTR_CENTER));
 105     boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 106       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(ARC_ATTR_START));
 107     aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
 108   }
 109
 110   // a circle
 111   boost::shared_ptr<GeomAPI_Pnt> aCenter = sketch()->to3D(aCenterAttr->x(), aCenterAttr->y());
 112
 113   boost::shared_ptr<GeomDataAPI_Dir> aNDir =
 114     boost::dynamic_pointer_cast<GeomDataAPI_Dir>(sketch()->data()->attribute(SKETCH_ATTR_NORM));
 115   boost::shared_ptr<GeomAPI_Dir> aNormal = aNDir->dir();
 116
 117   boost::shared_ptr<GeomAPI_Circ> aCircle(new GeomAPI_Circ(aCenter, aNormal, aRadius));
 118
 119   anAnchor = aCircle->project(anAnchor);
 120   // TODO: a bug in AIS_RadiusDimension:
 121   // The anchor point can't be myCirc.Location() - an exception is raised.
 122   // But we need exactly this case...
 123   // We want to show a radius dimension starting from the circle centre and
 124   // ending at the user-defined point.
 125   // Also, if anchor point coincides with myP2, the radius dimension is not displayed at all.
 126   gp_Pnt anAPnt = anAnchor->impl<gp_Pnt>();
 127   double aDelta = 1/1000.0;
 128   if (anAnchor->x() != 0)
 129     anAnchor->setX(anAnchor->x() + aDelta);
 130   if (anAnchor->y() != 0)
 131     anAnchor->setY(anAnchor->y() + aDelta);
 132   if (anAnchor->z() != 0)
 133     anAnchor->setZ(anAnchor->z() + aDelta);
 134
 135   if (anAIS.IsNull())
 136   {
 137     Handle(AIS_RadiusDimension) aDimAIS =
 138       new AIS_RadiusDimension(aCircle->impl<gp_Circ>(), anAnchor->impl<gp_Pnt>());
 139     aDimAIS->SetCustomValue(aValue);
 140
 141     Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
 142     anAspect->MakeArrows3d (Standard_False);
 143     anAspect->MakeText3d(false);
 144     anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
 145     anAspect->MakeTextShaded(false);
 146     aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false);
 147     aDimAIS->SetDimensionAspect (anAspect);
 148     aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
 149
 150     anAIS = aDimAIS;
 151   }
 152   else
 153   {
 154     // update presentation
 155     Handle(AIS_RadiusDimension) aDimAIS = Handle(AIS_RadiusDimension)::DownCast(anAIS);
 156     if (!aDimAIS.IsNull())
 157     {
 158       aDimAIS->SetMeasuredGeometry(aCircle->impl<gp_Circ>(), anAnchor->impl<gp_Pnt>());
 159       aDimAIS->SetCustomValue(aValue);
 160       aDimAIS->Redisplay(Standard_True);
 161     }
 162   }
 163   return anAIS;
 164 }
 165