src/PartSet/PartSet_FeatureLinePrs.cpp

   1 // File:        PartSet_FeaturePrs.h
   2 // Created:     04 Jun 2014
   3 // Author:      Natalia ERMOLAEVA
   4
   5 #include <PartSet_FeatureLinePrs.h>
   6 #include <PartSet_Tools.h>
   7
   8 #include <SketchPlugin_Feature.h>
   9 #include <SketchPlugin_Sketch.h>
  10 #include <SketchPlugin_ConstraintCoincidence.h>
  11 #include <SketchPlugin_Line.h>
  12 #include <SketchPlugin_Constraint.h>
  13
  14 #include <GeomDataAPI_Point2D.h>
  15 #include <GeomAPI_Lin2d.h>
  16 #include <GeomAPI_Pnt2d.h>
  17
  18 #include <ModelAPI_Data.h>
  19 #include <ModelAPI_Document.h>
  20 #include <ModelAPI_AttributeRefAttr.h>
  21 #include <ModelAPI_AttributeRefList.h>
  22
  23 #include <Precision.hxx>
  24 #include <V3d_View.hxx>
  25
  26 using namespace std;
  27
  28 PartSet_FeatureLinePrs::PartSet_FeatureLinePrs(FeaturePtr theSketch)
  29 : PartSet_FeaturePrs(theSketch)
  30 {
  31 }
  32
  33 std::string PartSet_FeatureLinePrs::getKind()
  34 {
  35   return SKETCH_LINE_KIND;
  36 }
  37
  38 PartSet_SelectionMode PartSet_FeatureLinePrs::setPoint(double theX, double theY,
  39                                                        const PartSet_SelectionMode& theMode)
  40 {
  41   PartSet_SelectionMode aMode = theMode;
  42   switch (theMode)
  43   {
  44     case SM_FirstPoint: {
  45       PartSet_Tools::setFeaturePoint(feature(), theX, theY, LINE_ATTR_START);
  46       PartSet_Tools::setFeaturePoint(feature(), theX, theY, LINE_ATTR_END);
  47       aMode = SM_SecondPoint;
  48     }
  49     break;
  50     case SM_SecondPoint: {
  51       PartSet_Tools::setFeaturePoint(feature(), theX, theY, LINE_ATTR_END);
  52       aMode = SM_DonePoint;
  53    }
  54     break;
  55     default:
  56       break;
  57   }
  58   return aMode;
  59 }
  60
  61 PartSet_SelectionMode PartSet_FeatureLinePrs::setFeature(FeaturePtr theFeature, const PartSet_SelectionMode& theMode)
  62 {
  63   PartSet_SelectionMode aMode = theMode;
  64   if (feature() && theFeature && theMode == SM_FirstPoint)
  65   {
  66     // use the last point of the previous feature as the first of the new one
  67     boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
  68     boost::shared_ptr<GeomDataAPI_Point2D> anInitPoint = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
  69                                                                   (aData->attribute(LINE_ATTR_END));
  70     PartSet_Tools::setFeaturePoint(feature(), anInitPoint->x(), anInitPoint->y(), LINE_ATTR_START);
  71     PartSet_Tools::setFeaturePoint(feature(), anInitPoint->x(), anInitPoint->y(), LINE_ATTR_END);
  72
  73     aData = feature()->data();
  74     boost::shared_ptr<GeomDataAPI_Point2D> aPoint = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
  75                                                                  (aData->attribute(LINE_ATTR_START));
  76     PartSet_Tools::createConstraint(sketch(), anInitPoint, aPoint);
  77     aMode = SM_SecondPoint;
  78   }
  79   return aMode;
  80 }
  81
  82 std::string PartSet_FeatureLinePrs::getAttribute(const PartSet_SelectionMode& theMode) const
  83 {
  84   std::string aAttribute;
  85   switch (theMode)
  86   {
  87     case SM_FirstPoint:
  88       aAttribute = LINE_ATTR_START;
  89     break;
  90     case SM_SecondPoint:
  91       aAttribute = LINE_ATTR_END;
  92     break;
  93     default:
  94     break;
  95   }
  96   return aAttribute;
  97 }
  98
  99 PartSet_SelectionMode PartSet_FeatureLinePrs::getNextMode(const std::string& theAttribute) const
 100 {
 101   PartSet_SelectionMode aMode;
 102
 103   if (theAttribute == LINE_ATTR_START)
 104     aMode = SM_SecondPoint;
 105   else if (theAttribute == LINE_ATTR_END)
 106     aMode = SM_DonePoint;
 107   return aMode;
 108 }
 109
 110 void PartSet_FeatureLinePrs::projectPointOnLine(FeaturePtr theFeature,
 111                                                 const PartSet_SelectionMode& theMode,
 112                                                 const gp_Pnt& thePoint, Handle(V3d_View) theView,
 113                                                 double& theX, double& theY)
 114 {
 115   if (theFeature && theFeature->getKind() == getKind()) {
 116     double X0, X1;
 117     double Y0, Y1;
 118
 119     PartSet_Tools::convertTo2D(thePoint, sketch(), theView, X1, Y1);
 120     boost::shared_ptr<GeomAPI_Pnt2d> aPoint = boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(X1, Y1));
 121     boost::shared_ptr<GeomAPI_Lin2d> aFeatureLin = PartSet_FeatureLinePrs::createLin2d(theFeature);
 122
 123     switch (theMode) {
 124       case SM_FirstPoint: {
 125         boost::shared_ptr<GeomAPI_Pnt2d> aResult = aFeatureLin->project(aPoint);
 126         theX = aResult->x();
 127         theY = aResult->y();
 128       }
 129       break;
 130       case SM_SecondPoint: {
 131         getLinePoint(feature(), LINE_ATTR_START, X0, Y0);
 132         boost::shared_ptr<GeomAPI_Lin2d> aCurrentLin = boost::shared_ptr<GeomAPI_Lin2d>
 133                                                            (new GeomAPI_Lin2d(X0, Y0, X1, Y1));
 134         boost::shared_ptr<GeomAPI_Pnt2d> aResult = aFeatureLin->intersect(aCurrentLin);
 135         boost::shared_ptr<GeomAPI_Pnt2d> aPoint0 = boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(X0, Y0));
 136         if (aResult->distance(aPoint0) < Precision::Confusion()) { // the start point is nearest to the line
 137           // if the first point of a line belongs to the given line
 138           // we need to project the second point on the same line
 139           aResult = aFeatureLin->project(aPoint);
 140         }
 141         theX = aResult->x();
 142         theY = aResult->y();
 143       }
 144       break;
 145       default:
 146       break;
 147     }
 148   }
 149 }
 150
 151 boost::shared_ptr<GeomDataAPI_Point2D> PartSet_FeatureLinePrs::findPoint(FeaturePtr theFeature,
 152                                                                          double theX, double theY)
 153 {
 154   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2D;
 155   if (!theFeature || theFeature->getKind() != getKind())
 156     return aPoint2D;
 157
 158   boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
 159   boost::shared_ptr<GeomDataAPI_Point2D> aPoint =
 160         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_START));
 161   if (fabs(aPoint->x() - theX) < Precision::Confusion() &&
 162       fabs(aPoint->y() - theY) < Precision::Confusion())
 163     aPoint2D = aPoint;
 164   else {
 165     aPoint = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_END));
 166     if (fabs(aPoint->x() - theX) < Precision::Confusion() &&
 167         fabs(aPoint->y() - theY) < Precision::Confusion())
 168       aPoint2D = aPoint;
 169   }
 170   return aPoint2D;
 171 }
 172
 173 boost::shared_ptr<GeomAPI_Lin2d> PartSet_FeatureLinePrs::createLin2d(FeaturePtr theFeature)
 174 {
 175   boost::shared_ptr<GeomAPI_Lin2d> aFeatureLin;
 176   if (!theFeature || theFeature->getKind() != PartSet_FeatureLinePrs::getKind())
 177     return aFeatureLin;
 178
 179   double aStartX, aStartY, anEndX, anEndY;
 180   getLinePoint(theFeature, LINE_ATTR_START, aStartX, aStartY);
 181   getLinePoint(theFeature, LINE_ATTR_END, anEndX, anEndY);
 182
 183   aFeatureLin = boost::shared_ptr<GeomAPI_Lin2d>
 184                                         (new GeomAPI_Lin2d(aStartX, aStartY, anEndX, anEndY));
 185   return aFeatureLin;
 186 }
 187
 188 boost::shared_ptr<GeomDataAPI_Point2D> PartSet_FeatureLinePrs::featurePoint
 189                                                      (const PartSet_SelectionMode& theMode)
 190 {
 191   std::string aPointArg;
 192   switch (theMode)
 193   {
 194     case SM_FirstPoint:
 195       aPointArg = LINE_ATTR_START;
 196       break;
 197     case SM_SecondPoint:
 198       aPointArg = LINE_ATTR_END;
 199       break;
 200     default:
 201       break;
 202   }
 203   boost::shared_ptr<ModelAPI_Data> aData = feature()->data();
 204   boost::shared_ptr<GeomDataAPI_Point2D> aPoint = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
 205                                                               (aData->attribute(aPointArg));
 206   return aPoint;
 207 }
 208
 209 void PartSet_FeatureLinePrs::getLinePoint(FeaturePtr theFeature, const std::string& theAttribute,
 210                                           double& theX, double& theY)
 211 {
 212   if (!theFeature || theFeature->getKind() != PartSet_FeatureLinePrs::getKind())
 213     return;
 214   boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
 215   boost::shared_ptr<GeomDataAPI_Point2D> aPoint =
 216         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(theAttribute));
 217   theX = aPoint->x();
 218   theY = aPoint->y();
 219 }