src/SketchPlugin/SketchPlugin_ConstraintRadius.cpp

   1 // Copyright (C) 2014-2017  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 #include "SketchPlugin_ConstraintRadius.h"
  22
  23 #include <SketchPlugin_Arc.h>
  24 #include <SketchPlugin_Circle.h>
  25 #include <SketchPlugin_Point.h>
  26
  27 #include <SketcherPrs_Factory.h>
  28 #include <SketcherPrs_Tools.h>
  29
  30 #include <ModelAPI_AttributeDouble.h>
  31 #include <ModelAPI_AttributeInteger.h>
  32 #include <ModelAPI_Data.h>
  33 #include <ModelAPI_Session.h>
  34 #include <ModelAPI_Validator.h>
  35
  36 #include <GeomAPI_Pnt2d.h>
  37 #include <GeomAPI_Circ.h>
  38 #include <GeomAPI_Circ2d.h>
  39 #include <GeomAPI_Dir.h>
  40 #include <GeomAPI_XY.h>
  41 #include <GeomAPI_XYZ.h>
  42 #include <GeomDataAPI_Point2D.h>
  43 #include <GeomDataAPI_Dir.h>
  44
  45 #include <Config_PropManager.h>
  46
  47 const double tolerance = 1.e-7;
  48
  49 SketchPlugin_ConstraintRadius::SketchPlugin_ConstraintRadius()
  50 {
  51   myFlyoutUpdate = false;
  52 }
  53
  54 void SketchPlugin_ConstraintRadius::initAttributes()
  55 {
  56   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
  57   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
  58   data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
  59
  60   data()->addAttribute(SketchPlugin_ConstraintRadius::LOCATION_TYPE_ID(),
  61                        ModelAPI_AttributeInteger::typeId());
  62   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
  63 }
  64
  65 void SketchPlugin_ConstraintRadius::colorConfigInfo(std::string& theSection, std::string& theName,
  66                                                     std::string& theDefault)
  67 {
  68   theSection = "Visualization";
  69   theName = "sketch_dimension_color";
  70   theDefault = SKETCH_DIMENSION_COLOR;
  71 }
  72
  73 void SketchPlugin_ConstraintRadius::execute()
  74 {
  75   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
  76       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  77   FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
  78   if (aFeature) {
  79     double aRadius = 0;
  80     std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
  81     if (aFeature->getKind() == SketchPlugin_Circle::ID()) {
  82       AttributeDoublePtr anAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  83           aData->attribute(SketchPlugin_Circle::RADIUS_ID()));
  84       if (anAttribute)
  85         aRadius = anAttribute->value();
  86     } else if (aFeature->getKind() == SketchPlugin_Arc::ID()) {
  87       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  88           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::CENTER_ID()));
  89       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  90           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::START_ID()));
  91       if (aCenterAttr && aStartAttr)
  92         aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
  93     }
  94     //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
  95     //    ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
  96     //if(!aValueAttr->isInitialized()) {
  97     //  aValueAttr->setValue(aRadius);
  98     //}
  99
 100     // the value should to be computed here,
 101     // not in the getAISObject in order to change the model value
 102     // inside the object transaction. This is important for creating a constraint by preselection.
 103     // The display of the presentation in this case happens after the transaction commit
 104     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 105         GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 106     if (!aFlyoutAttr->isInitialized())
 107       compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
 108   }
 109 }
 110
 111 bool SketchPlugin_ConstraintRadius::compute(const std::string& theAttributeId)
 112 {
 113   if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
 114     return false;
 115
 116   std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 117   double aRadius = circleRadius(aCyrcFeature);
 118   if (aRadius < 0)
 119     return false;
 120
 121   // Flyout point
 122   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 123       GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
 124   // Prepare a circle
 125   if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 126     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 127       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 128         aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
 129     double aShift = aRadius * 1.1;
 130     std::shared_ptr<GeomAPI_Pnt2d> aPnt = aCenterAttr->pnt();
 131     std::shared_ptr<GeomAPI_Pnt2d> aFPnt =
 132       std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt->x() + aShift, aPnt->y() + aShift));
 133     aFlyoutAttr->setValue(aFPnt);
 134   } else { // arc
 135     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 136       GeomDataAPI_Point2D>(aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
 137     aFlyoutAttr->setValue(aStartAttr->pnt());
 138   }
 139   return true;
 140 }
 141
 142 double SketchPlugin_ConstraintRadius::circleRadius(std::shared_ptr<ModelAPI_Feature>& theCirc)
 143 {
 144   static const double kErrorResult = -1.;
 145   if (!sketch())
 146     return kErrorResult;
 147
 148   std::shared_ptr<ModelAPI_Data> aData = data();
 149   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 150       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 151   if (!anAttr)
 152     return kErrorResult;
 153   theCirc = ModelAPI_Feature::feature(anAttr->object());
 154   std::string aKind = theCirc ? theCirc->getKind() : "";
 155   if (aKind != SketchPlugin_Circle::ID() && aKind != SketchPlugin_Arc::ID())
 156     return kErrorResult;
 157
 158   DataPtr aCircData = theCirc->data();
 159   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
 160   if (aKind == SketchPlugin_Circle::ID()) {
 161     AttributeDoublePtr aCircRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 162         aCircData->attribute(SketchPlugin_Circle::RADIUS_ID()));
 163     return aCircRadius->value();
 164   } else {
 165     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 166         aCircData->attribute(SketchPlugin_Arc::CENTER_ID()));
 167     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 168         GeomDataAPI_Point2D>(aCircData->attribute(SketchPlugin_Arc::START_ID()));
 169     return aCenterAttr->pnt()->distance(aStartAttr->pnt());
 170   }
 171   return kErrorResult;
 172 }
 173
 174 AISObjectPtr SketchPlugin_ConstraintRadius::getAISObject(AISObjectPtr thePrevious)
 175 {
 176   if (!sketch())
 177     return thePrevious;
 178
 179   AISObjectPtr anAIS = SketcherPrs_Factory::radiusConstraint(this, sketch()->coordinatePlane(),
 180                                                              thePrevious);
 181   return anAIS;
 182 }
 183
 184 void SketchPlugin_ConstraintRadius::attributeChanged(const std::string& theID) {
 185   if (theID == SketchPlugin_Constraint::ENTITY_A()) {
 186     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 187         ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 188     if (!aValueAttr->isInitialized()) {
 189       // only if it is not initialized, try to compute the current value
 190       std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 191       double aRadius = circleRadius(aCyrcFeature);
 192       if (aRadius > 0) { // set as value the radius of updated reference to another circle
 193         aValueAttr->setValue(aRadius);
 194       }
 195     }
 196   } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
 197     // Recalculate flyout point in local coordinates of the circle (or arc):
 198     // coordinates are calculated according to center of the shape
 199     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
 200         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 201         attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 202
 203     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 204         attribute(SketchPlugin_Constraint::ENTITY_A()));
 205     if (!aRefAttr || !aRefAttr->isObject())
 206       return;
 207     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 208     if (!aFeature || (aFeature->getKind() != SketchPlugin_Arc::ID() &&
 209         aFeature->getKind() != SketchPlugin_Circle::ID()))
 210       return;
 211
 212     std::string aCenterAttrName;
 213     if (aFeature->getKind() == SketchPlugin_Circle::ID())
 214       aCenterAttrName = SketchPlugin_Circle::CENTER_ID();
 215     else if (aFeature->getKind() == SketchPlugin_Arc::ID())
 216       aCenterAttrName = SketchPlugin_Arc::CENTER_ID();
 217     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 218         GeomDataAPI_Point2D>(aFeature->data()->attribute(aCenterAttrName));
 219     std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
 220     std::shared_ptr<ModelAPI_AttributeDouble> aRadius = std::dynamic_pointer_cast<
 221         ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
 222
 223     std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
 224     double aDist = aFlyoutPnt->distance(aCenter);
 225     if (aDist < tolerance)
 226       return;
 227
 228     myFlyoutUpdate = true;
 229     std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aCenter->xy());
 230     aFlyoutAttr->setValue(aFlyoutDir->x(), aFlyoutDir->y());
 231     myFlyoutUpdate = false;
 232   }
 233 }