src/SketchPlugin/SketchPlugin_ConstraintRadius.cpp

   1 // Copyright (C) 2014-2023  CEA, EDF
   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 #include <SketchPlugin_Tools.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     // the value should to be computed here,
  80     // not in the getAISObject in order to change the model value
  81     // inside the object transaction. This is important for creating a constraint by preselection.
  82     // The display of the presentation in this case happens after the transaction commit
  83     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
  84         GeomDataAPI_Point2D>(data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
  85     if (!aFlyoutAttr->isInitialized())
  86       compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
  87   }
  88 }
  89
  90 bool SketchPlugin_ConstraintRadius::compute(const std::string& theAttributeId)
  91 {
  92   if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
  93     return false;
  94
  95   std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
  96   double aRadius = circleRadius(aCyrcFeature);
  97   if (aRadius < 0)
  98     return false;
  99
 100   // Flyout point
 101   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = std::dynamic_pointer_cast<
 102       GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
 103   // Prepare a circle
 104   if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
 105     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 106       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 107         aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
 108     double aShift = aRadius * 1.1;
 109     std::shared_ptr<GeomAPI_Pnt2d> aPnt = aCenterAttr->pnt();
 110     std::shared_ptr<GeomAPI_Pnt2d> aFPnt =
 111       std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aPnt->x() + aShift, aPnt->y() + aShift));
 112     aFlyoutAttr->setValue(aFPnt);
 113   } else { // arc
 114     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 115       GeomDataAPI_Point2D>(aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
 116     aFlyoutAttr->setValue(aStartAttr->pnt());
 117   }
 118   return true;
 119 }
 120
 121 double SketchPlugin_ConstraintRadius::circleRadius(std::shared_ptr<ModelAPI_Feature>& theCirc)
 122 {
 123   static const double kErrorResult = -1.;
 124   if (!sketch())
 125     return kErrorResult;
 126
 127   std::shared_ptr<ModelAPI_Data> aData = data();
 128   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
 129       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 130   if (!anAttr)
 131     return kErrorResult;
 132   theCirc = ModelAPI_Feature::feature(anAttr->object());
 133   std::string aKind = theCirc ? theCirc->getKind() : "";
 134   if (aKind != SketchPlugin_Circle::ID() && aKind != SketchPlugin_Arc::ID())
 135     return kErrorResult;
 136
 137   DataPtr aCircData = theCirc->data();
 138   std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
 139   if (aKind == SketchPlugin_Circle::ID()) {
 140     AttributeDoublePtr aCircRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 141         aCircData->attribute(SketchPlugin_Circle::RADIUS_ID()));
 142     return aCircRadius->value();
 143   } else {
 144     aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 145         aCircData->attribute(SketchPlugin_Arc::CENTER_ID()));
 146     std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
 147         GeomDataAPI_Point2D>(aCircData->attribute(SketchPlugin_Arc::START_ID()));
 148     return aCenterAttr->pnt()->distance(aStartAttr->pnt());
 149   }
 150   return kErrorResult;
 151 }
 152
 153 AISObjectPtr SketchPlugin_ConstraintRadius::getAISObject(AISObjectPtr thePrevious)
 154 {
 155   if (!sketch())
 156     return thePrevious;
 157
 158   AISObjectPtr anAIS = SketcherPrs_Factory::radiusConstraint(this, sketch(),
 159                                                              thePrevious);
 160   if (anAIS.get() && !thePrevious.get())
 161     SketchPlugin_Tools::setDimensionColor(anAIS);
 162   return anAIS;
 163 }
 164
 165 void SketchPlugin_ConstraintRadius::attributeChanged(const std::string& theID) {
 166   if (theID == SketchPlugin_Constraint::ENTITY_A()) {
 167     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
 168         ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
 169     if (!aValueAttr->isInitialized()) {
 170       // only if it is not initialized, try to compute the current value
 171       std::shared_ptr<ModelAPI_Feature> aCyrcFeature;
 172       double aRadius = circleRadius(aCyrcFeature);
 173       if (aRadius > 0) { // set as value the radius of updated reference to another circle
 174         aValueAttr->setValue(aRadius);
 175       }
 176     }
 177   } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
 178     // Recalculate flyout point in local coordinates of the circle (or arc):
 179     // coordinates are calculated according to center of the shape
 180     std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
 181         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 182         attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 183
 184     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 185         attribute(SketchPlugin_Constraint::ENTITY_A()));
 186     if (!aRefAttr || !aRefAttr->isObject())
 187       return;
 188     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 189     if (!aFeature || (aFeature->getKind() != SketchPlugin_Arc::ID() &&
 190         aFeature->getKind() != SketchPlugin_Circle::ID()))
 191       return;
 192
 193     std::string aCenterAttrName;
 194     if (aFeature->getKind() == SketchPlugin_Circle::ID())
 195       aCenterAttrName = SketchPlugin_Circle::CENTER_ID();
 196     else if (aFeature->getKind() == SketchPlugin_Arc::ID())
 197       aCenterAttrName = SketchPlugin_Arc::CENTER_ID();
 198     std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
 199         GeomDataAPI_Point2D>(aFeature->data()->attribute(aCenterAttrName));
 200     std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
 201     std::shared_ptr<ModelAPI_AttributeDouble> aRadius = std::dynamic_pointer_cast<
 202         ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
 203
 204     std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
 205     double aDist = aFlyoutPnt->distance(aCenter);
 206     if (aDist < tolerance)
 207       return;
 208
 209     myFlyoutUpdate = true;
 210     std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aCenter->xy());
 211     aFlyoutAttr->setValue(aFlyoutDir->x(), aFlyoutDir->y());
 212     myFlyoutUpdate = false;
 213   }
 214 }