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 email : webmaster.salome@opencascade.com<mailto: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
  28 #include <ModelAPI_AttributeDouble.h>
  29 #include <ModelAPI_Data.h>
  30
  31 #include <GeomAPI_Pnt2d.h>
  32 #include <GeomAPI_Circ.h>
  33 #include <GeomAPI_Circ2d.h>
  34 #include <GeomAPI_Dir.h>
  35 #include <GeomAPI_XY.h>
  36 #include <GeomAPI_XYZ.h>
  37 #include <GeomDataAPI_Point2D.h>
  38 #include <GeomDataAPI_Dir.h>
  39
  40 #include <Config_PropManager.h>
  41
  42 const double tolerance = 1.e-7;
  43
  44 SketchPlugin_ConstraintRadius::SketchPlugin_ConstraintRadius()
  45 {
  46   myFlyoutUpdate = false;
  47 }
  48
  49 void SketchPlugin_ConstraintRadius::initAttributes()
  50 {
  51   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
  52   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
  53   data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
  54 }
  55
  56 void SketchPlugin_ConstraintRadius::colorConfigInfo(std::string& theSection, std::string& theName,
  57                                                     std::string& theDefault)
  58 {
  59   theSection = "Visualization";
  60   theName = "sketch_dimension_color";
  61   theDefault = SKETCH_DIMENSION_COLOR;
  62 }
  63
  64 void SketchPlugin_ConstraintRadius::execute()
  65 {
  66   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
  67       ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
  68   FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
  69   if (aFeature) {
  70     double aRadius = 0;
  71     std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
  72     if (aFeature->getKind() == SketchPlugin_Circle::ID()) {
  73       AttributeDoublePtr anAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  74           aData->attribute(SketchPlugin_Circle::RADIUS_ID()));
  75       if (anAttribute)
  76         aRadius = anAttribute->value();
  77     } else if (aFeature->getKind() == SketchPlugin_Arc::ID()) {
  78       std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
  79           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::CENTER_ID()));
  80       std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
  81           GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Arc::START_ID()));
  82       if (aCenterAttr && aStartAttr)
  83         aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
  84     }
  85     //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
  86     //    ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
  87     //if(!aValueAttr->isInitialized()) {
  88     //  aValueAttr->setValue(aRadius);
  89     //}
  90
  91     // the value should to be computed here,
  92     // not in the getAISObject in order to change the model value
  93     // inside the object transaction. This is important for creating a constraint by preselection.
  94     // The display of the presentation in this case happens after the transaction commit
  95     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
  96         GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
  97     if (!aFlyoutAttr->isInitialized())
  98       compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
  99   }
 100 }
 101
 102 bool SketchPlugin_ConstraintRadius::compute(const std::string& theAttributeId)
 103 {
 104   if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
 105     return false;
 106
 107   std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 108   double aRadius = circleRadius(aCyrcFeature);
 109   if (aRadius < 0)
 110     return false;
 111
 112   // Flyout point
 113   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 114       GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
 115   // Prepare a circle
 116   if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 117     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 118       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 119         aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
 120     double aShift = aRadius * 1.1;
 121     std::shared_ptr<GeomAPI_Pnt2d> aPnt = aCenterAttr->pnt();
 122     std::shared_ptr<GeomAPI_Pnt2d> aFPnt =
 123       std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt->x() + aShift, aPnt->y() + aShift));
 124     aFlyoutAttr->setValue(aFPnt);
 125   } else { // arc
 126     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 127       GeomDataAPI_Point2D>(aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
 128     aFlyoutAttr->setValue(aStartAttr->pnt());
 129   }
 130   return true;
 131 }
 132
 133 double SketchPlugin_ConstraintRadius::circleRadius(std::shared_ptr<ModelAPI_Feature>& theCirc)
 134 {
 135   static const double kErrorResult = -1.;
 136   if (!sketch())
 137     return kErrorResult;
 138
 139   std::shared_ptr<ModelAPI_Data> aData = data();
 140   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 141       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 142   if (!anAttr)
 143     return kErrorResult;
 144   theCirc = ModelAPI_Feature::feature(anAttr->object());
 145   std::string aKind = theCirc ? theCirc->getKind() : "";
 146   if (aKind != SketchPlugin_Circle::ID() && aKind != SketchPlugin_Arc::ID())
 147     return kErrorResult;
 148
 149   DataPtr aCircData = theCirc->data();
 150   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
 151   if (aKind == SketchPlugin_Circle::ID()) {
 152     AttributeDoublePtr aCircRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 153         aCircData->attribute(SketchPlugin_Circle::RADIUS_ID()));
 154     return aCircRadius->value();
 155   } else {
 156     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 157         aCircData->attribute(SketchPlugin_Arc::CENTER_ID()));
 158     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 159         GeomDataAPI_Point2D>(aCircData->attribute(SketchPlugin_Arc::START_ID()));
 160     return aCenterAttr->pnt()->distance(aStartAttr->pnt());
 161   }
 162   return kErrorResult;
 163 }
 164
 165 AISObjectPtr SketchPlugin_ConstraintRadius::getAISObject(AISObjectPtr thePrevious)
 166 {
 167   if (!sketch())
 168     return thePrevious;
 169
 170   AISObjectPtr anAIS = SketcherPrs_Factory::radiusConstraint(this, sketch()->coordinatePlane(),
 171                                                              thePrevious);
 172   return anAIS;
 173 }
 174
 175 void SketchPlugin_ConstraintRadius::move(double theDeltaX, double theDeltaY)
 176 {
 177   std::shared_ptr<ModelAPI_Data> aData = data();
 178   if (!aData->isValid())
 179     return;
 180
 181   myFlyoutUpdate = true;
 182   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 183       GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 184   aFlyoutAttr->setValue(aFlyoutAttr->x() + theDeltaX, aFlyoutAttr->y() + theDeltaY);
 185   myFlyoutUpdate = false;
 186 }
 187
 188 void SketchPlugin_ConstraintRadius::attributeChanged(const std::string& theID) {
 189   if (theID == SketchPlugin_Constraint::ENTITY_A()) {
 190     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 191         ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 192     if (!aValueAttr->isInitialized()) {
 193       // only if it is not initialized, try to compute the current value
 194       std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 195       double aRadius = circleRadius(aCyrcFeature);
 196       if (aRadius > 0) { // set as value the radius of updated reference to another circle
 197         aValueAttr->setValue(aRadius);
 198       }
 199     }
 200   } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
 201     // Recalculate flyout point in local coordinates of the circle (or arc):
 202     // coordinates are calculated according to center of the shape
 203     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
 204         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 205         attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 206
 207     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 208         attribute(SketchPlugin_Constraint::ENTITY_A()));
 209     if (!aRefAttr || !aRefAttr->isObject())
 210       return;
 211     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 212     if (!aFeature || (aFeature->getKind() != SketchPlugin_Arc::ID() &&
 213         aFeature->getKind() != SketchPlugin_Circle::ID()))
 214       return;
 215
 216     std::string aCenterAttrName;
 217     if (aFeature->getKind() == SketchPlugin_Circle::ID())
 218       aCenterAttrName = SketchPlugin_Circle::CENTER_ID();
 219     else if (aFeature->getKind() == SketchPlugin_Arc::ID())
 220       aCenterAttrName = SketchPlugin_Arc::CENTER_ID();
 221     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 222         GeomDataAPI_Point2D>(aFeature->data()->attribute(aCenterAttrName));
 223     std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
 224     std::shared_ptr<ModelAPI_AttributeDouble> aRadius = std::dynamic_pointer_cast<
 225         ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
 226
 227     std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
 228     double aDist = aFlyoutPnt->distance(aCenter);
 229     if (aDist < tolerance)
 230       return;
 231
 232     myFlyoutUpdate = true;
 233     std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aCenter->xy());
 234     aFlyoutAttr->setValue(aFlyoutDir->x(), aFlyoutDir->y());
 235     myFlyoutUpdate = false;
 236   }
 237 }