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