src/SketchPlugin/SketchPlugin_ConstraintRadius.cpp

   1 // Copyright (C) 2014-2019  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 email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_ConstraintRadius.h"
  21
  22 #include <SketchPlugin_Arc.h>
  23 #include <SketchPlugin_Circle.h>
  24 #include <SketchPlugin_Point.h>
  25
  26 #include <SketcherPrs_Factory.h>
  27 #include <SketcherPrs_Tools.h>
  28
  29 #include <ModelAPI_AttributeDouble.h>
  30 #include <ModelAPI_AttributeInteger.h>
  31 #include <ModelAPI_Data.h>
  32 #include <ModelAPI_Session.h>
  33 #include <ModelAPI_Validator.h>
  34
  35 #include <GeomAPI_Pnt2d.h>
  36 #include <GeomAPI_Circ.h>
  37 #include <GeomAPI_Circ2d.h>
  38 #include <GeomAPI_Dir.h>
  39 #include <GeomAPI_XY.h>
  40 #include <GeomAPI_XYZ.h>
  41 #include <GeomDataAPI_Point2D.h>
  42 #include <GeomDataAPI_Dir.h>
  43
  44 #include <Config_PropManager.h>
  45
  46 const double tolerance = 1.e-7;
  47
  48 SketchPlugin_ConstraintRadius::SketchPlugin_ConstraintRadius()
  49 {
  50   myFlyoutUpdate = false;
  51 }
  52
  53 void SketchPlugin_ConstraintRadius::initAttributes()
  54 {
  55   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
  56   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
  57   data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
  58
  59   data()->addAttribute(SketchPlugin_ConstraintRadius::LOCATION_TYPE_ID(),
  60                        ModelAPI_AttributeInteger::typeId());
  61   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
  62 }
  63
  64 void SketchPlugin_ConstraintRadius::colorConfigInfo(std::string& theSection, std::string& theName,
  65                                                     std::string& theDefault)
  66 {
  67   theSection = "Visualization";
  68   theName = "sketch_dimension_color";
  69   theDefault = SKETCH_DIMENSION_COLOR;
  70 }
  71
  72 void SketchPlugin_ConstraintRadius::execute()
  73 {
  74   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
  75       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  76   FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
  77   if (aFeature) {
  78     double aRadius = 0;
  79     std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
  80     if (aFeature->getKind() == SketchPlugin_Circle::ID()) {
  81       AttributeDoublePtr anAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  82           aData->attribute(SketchPlugin_Circle::RADIUS_ID()));
  83       if (anAttribute)
  84         aRadius = anAttribute->value();
  85     } else if (aFeature->getKind() == SketchPlugin_Arc::ID()) {
  86       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  87           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::CENTER_ID()));
  88       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  89           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::START_ID()));
  90       if (aCenterAttr && aStartAttr)
  91         aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
  92     }
  93     //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
  94     //    ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
  95     //if(!aValueAttr->isInitialized()) {
  96     //  aValueAttr->setValue(aRadius);
  97     //}
  98
  99     // the value should to be computed here,
 100     // not in the getAISObject in order to change the model value
 101     // inside the object transaction. This is important for creating a constraint by preselection.
 102     // The display of the presentation in this case happens after the transaction commit
 103     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 104         GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 105     if (!aFlyoutAttr->isInitialized())
 106       compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
 107   }
 108 }
 109
 110 bool SketchPlugin_ConstraintRadius::compute(const std::string& theAttributeId)
 111 {
 112   if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
 113     return false;
 114
 115   std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 116   double aRadius = circleRadius(aCyrcFeature);
 117   if (aRadius < 0)
 118     return false;
 119
 120   // Flyout point
 121   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 122       GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
 123   // Prepare a circle
 124   if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 125     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 126       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 127         aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
 128     double aShift = aRadius * 1.1;
 129     std::shared_ptr<GeomAPI_Pnt2d> aPnt = aCenterAttr->pnt();
 130     std::shared_ptr<GeomAPI_Pnt2d> aFPnt =
 131       std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt->x() + aShift, aPnt->y() + aShift));
 132     aFlyoutAttr->setValue(aFPnt);
 133   } else { // arc
 134     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 135       GeomDataAPI_Point2D>(aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
 136     aFlyoutAttr->setValue(aStartAttr->pnt());
 137   }
 138   return true;
 139 }
 140
 141 double SketchPlugin_ConstraintRadius::circleRadius(std::shared_ptr<ModelAPI_Feature>& theCirc)
 142 {
 143   static const double kErrorResult = -1.;
 144   if (!sketch())
 145     return kErrorResult;
 146
 147   std::shared_ptr<ModelAPI_Data> aData = data();
 148   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 149       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 150   if (!anAttr)
 151     return kErrorResult;
 152   theCirc = ModelAPI_Feature::feature(anAttr->object());
 153   std::string aKind = theCirc ? theCirc->getKind() : "";
 154   if (aKind != SketchPlugin_Circle::ID() && aKind != SketchPlugin_Arc::ID())
 155     return kErrorResult;
 156
 157   DataPtr aCircData = theCirc->data();
 158   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
 159   if (aKind == SketchPlugin_Circle::ID()) {
 160     AttributeDoublePtr aCircRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 161         aCircData->attribute(SketchPlugin_Circle::RADIUS_ID()));
 162     return aCircRadius->value();
 163   } else {
 164     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 165         aCircData->attribute(SketchPlugin_Arc::CENTER_ID()));
 166     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 167         GeomDataAPI_Point2D>(aCircData->attribute(SketchPlugin_Arc::START_ID()));
 168     return aCenterAttr->pnt()->distance(aStartAttr->pnt());
 169   }
 170   return kErrorResult;
 171 }
 172
 173 AISObjectPtr SketchPlugin_ConstraintRadius::getAISObject(AISObjectPtr thePrevious)
 174 {
 175   if (!sketch())
 176     return thePrevious;
 177
 178   AISObjectPtr anAIS = SketcherPrs_Factory::radiusConstraint(this, sketch(),
 179                                                              thePrevious);
 180   return anAIS;
 181 }
 182
 183 void SketchPlugin_ConstraintRadius::attributeChanged(const std::string& theID) {
 184   if (theID == SketchPlugin_Constraint::ENTITY_A()) {
 185     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 186         ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 187     if (!aValueAttr->isInitialized()) {
 188       // only if it is not initialized, try to compute the current value
 189       std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 190       double aRadius = circleRadius(aCyrcFeature);
 191       if (aRadius > 0) { // set as value the radius of updated reference to another circle
 192         aValueAttr->setValue(aRadius);
 193       }
 194     }
 195   } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
 196     // Recalculate flyout point in local coordinates of the circle (or arc):
 197     // coordinates are calculated according to center of the shape
 198     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
 199         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 200         attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 201
 202     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 203         attribute(SketchPlugin_Constraint::ENTITY_A()));
 204     if (!aRefAttr || !aRefAttr->isObject())
 205       return;
 206     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 207     if (!aFeature || (aFeature->getKind() != SketchPlugin_Arc::ID() &&
 208         aFeature->getKind() != SketchPlugin_Circle::ID()))
 209       return;
 210
 211     std::string aCenterAttrName;
 212     if (aFeature->getKind() == SketchPlugin_Circle::ID())
 213       aCenterAttrName = SketchPlugin_Circle::CENTER_ID();
 214     else if (aFeature->getKind() == SketchPlugin_Arc::ID())
 215       aCenterAttrName = SketchPlugin_Arc::CENTER_ID();
 216     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 217         GeomDataAPI_Point2D>(aFeature->data()->attribute(aCenterAttrName));
 218     std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
 219     std::shared_ptr<ModelAPI_AttributeDouble> aRadius = std::dynamic_pointer_cast<
 220         ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
 221
 222     std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
 223     double aDist = aFlyoutPnt->distance(aCenter);
 224     if (aDist < tolerance)
 225       return;
 226
 227     myFlyoutUpdate = true;
 228     std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aCenter->xy());
 229     aFlyoutAttr->setValue(aFlyoutDir->x(), aFlyoutDir->y());
 230     myFlyoutUpdate = false;
 231   }
 232 }