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