src/SketchPlugin/SketchPlugin_BSpline.cpp

   1 // Copyright (C) 2019-2020  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_BSpline.h>
  21 #include <SketchPlugin_Sketch.h>
  22
  23 #include <GeomAlgoAPI_EdgeBuilder.h>
  24
  25 #include <GeomAPI_Pnt2d.h>
  26
  27 #include <GeomDataAPI_Point2D.h>
  28 #include <GeomDataAPI_Point2DArray.h>
  29
  30 #include <ModelAPI_AttributeDoubleArray.h>
  31 #include <ModelAPI_AttributeIntArray.h>
  32 #include <ModelAPI_AttributeInteger.h>
  33 #include <ModelAPI_ResultConstruction.h>
  34 #include <ModelAPI_Session.h>
  35 #include <ModelAPI_Validator.h>
  36
  37
  38 SketchPlugin_BSpline::SketchPlugin_BSpline()
  39   : SketchPlugin_SketchEntity()
  40 {
  41 }
  42
  43 void SketchPlugin_BSpline::initDerivedClassAttributes()
  44 {
  45   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
  46   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId());
  47
  48   data()->addAttribute(POLES_ID(), GeomDataAPI_Point2DArray::typeId());
  49   data()->addAttribute(WEIGHTS_ID(), ModelAPI_AttributeDoubleArray::typeId());
  50   data()->addAttribute(KNOTS_ID(), ModelAPI_AttributeDoubleArray::typeId());
  51   data()->addAttribute(MULTS_ID(), ModelAPI_AttributeIntArray::typeId());
  52   data()->addAttribute(DEGREE_ID(), ModelAPI_AttributeInteger::typeId());
  53
  54   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
  55   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  56 }
  57
  58 void SketchPlugin_BSpline::execute()
  59 {
  60   SketchPlugin_Sketch* aSketch = sketch();
  61   if(!aSketch) {
  62     return;
  63   }
  64
  65   AttributePoint2DArrayPtr aPolesArray =
  66       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(attribute(POLES_ID()));
  67   AttributeDoubleArrayPtr aWeightsArray = data()->realArray(WEIGHTS_ID());
  68   AttributeDoubleArrayPtr aKnotsArray = data()->realArray(KNOTS_ID());
  69   AttributeIntArrayPtr aMultsArray = data()->intArray(MULTS_ID());
  70   AttributeIntegerPtr aDegreeAttr = data()->integer(DEGREE_ID());
  71
  72   // collect poles
  73   std::list<GeomPnt2dPtr> aPoles2D;
  74   for (int anIndex = 0; anIndex < aPolesArray->size(); ++anIndex) {
  75     GeomPnt2dPtr aPole = aPolesArray->pnt(anIndex);
  76     aPoles2D.push_back(aPole);
  77   }
  78   // collect weights
  79   std::list<double> aWeights;
  80   for (int anIndex = 0; anIndex < aWeightsArray->size(); ++anIndex)
  81     aWeights.push_back(aWeightsArray->value(anIndex));
  82   // collect knots
  83   std::list<double> aKnots;
  84   for (int anIndex = 0; anIndex < aKnotsArray->size(); ++anIndex)
  85     aKnots.push_back(aKnotsArray->value(anIndex));
  86   // collect multiplicities
  87   std::list<int> aMults;
  88   for (int anIndex = 0; anIndex < aMultsArray->size(); ++anIndex)
  89     aMults.push_back(aMultsArray->value(anIndex));
  90
  91   // create result non-periodic B-spline curve
  92   GeomShapePtr anEdge = GeomAlgoAPI_EdgeBuilder::bsplineOnPlane(aSketch->coordinatePlane(),
  93       aPoles2D, aWeights, aKnots, aMults, aDegreeAttr->value(), false);
  94
  95   ResultConstructionPtr aResult = document()->createConstruction(data(), 0);
  96   aResult->setShape(anEdge);
  97   aResult->setIsInHistory(false);
  98   setResult(aResult, 0);
  99 }
 100
 101 bool SketchPlugin_BSpline::isFixed() {
 102   return data()->selection(EXTERNAL_ID())->context().get() != NULL;
 103 }
 104
 105 void SketchPlugin_BSpline::attributeChanged(const std::string& theID) {
 106   // the second condition for unability to move external segments anywhere
 107   if (theID == EXTERNAL_ID() || isFixed()) {
 108     std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 109     if (!aSelection) {
 110       // empty shape in selection shows that the shape is equal to context
 111       ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
 112       if (anExtRes)
 113         aSelection = anExtRes->shape();
 114     }
 115 ////    // update arguments due to the selection value
 116 ////    if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
 117 ////      std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aSelection));
 118 ////      std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
 119 ////
 120 ////      bool aWasBlocked = data()->blockSendAttributeUpdated(true);
 121 ////      std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
 122 ////        std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(CENTER_ID()));
 123 ////      aCenterAttr->setValue(sketch()->to2D(anEllipse->center()));
 124 ////
 125 ////      std::shared_ptr<GeomDataAPI_Point2D> aFocusAttr =
 126 ////        std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(FIRST_FOCUS_ID()));
 127 ////      aFocusAttr->setValue(sketch()->to2D(anEllipse->firstFocus()));
 128 ////
 129 ////      std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 130 ////        std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_POINT_ID()));
 131 ////      aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 132 ////
 133 ////      std::shared_ptr<GeomDataAPI_Point2D> aEndAttr =
 134 ////        std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_POINT_ID()));
 135 ////      aEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 136 ////
 137 ////      real(MAJOR_RADIUS_ID())->setValue(anEllipse->majorRadius());
 138 ////      real(MINOR_RADIUS_ID())->setValue(anEllipse->minorRadius());
 139 ////
 140 ////      double aStartParam, aMidParam, aEndParam;
 141 ////      anEllipse->parameter(anEdge->firstPoint(), tolerance, aStartParam);
 142 ////      anEllipse->parameter(anEdge->middlePoint(), tolerance, aMidParam);
 143 ////      anEllipse->parameter(anEdge->lastPoint(), tolerance, aEndParam);
 144 ////      if (aEndParam < aStartParam)
 145 ////        aEndParam += 2.0 * PI;
 146 ////      if (aMidParam < aStartParam)
 147 ////        aMidParam += 2.0 * PI;
 148 ////      boolean(REVERSED_ID())->setValue(aMidParam > aEndParam);
 149 ////
 150 ////      data()->blockSendAttributeUpdated(aWasBlocked, false);
 151 ////
 152 ////      fillCharacteristicPoints();
 153 ////    }
 154   }
 155   else if (theID == POLES_ID()) {
 156     AttributePoint2DArrayPtr aPolesArray =
 157         std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(attribute(POLES_ID()));
 158     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 159         attribute(START_ID()))->setValue(aPolesArray->pnt(0));
 160     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 161         attribute(END_ID()))->setValue(aPolesArray->pnt(aPolesArray->size() - 1));
 162   }
 163 }