src/SketcherPrs/SketcherPrs_LengthDimension.cpp

   1 // Copyright (C) 2014-2019  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 "SketcherPrs_LengthDimension.h"
  21 #include "SketcherPrs_Tools.h"
  22 #include "SketcherPrs_DimensionStyleListener.h"
  23
  24 #include <SketchPlugin_Constraint.h>
  25 #include <SketchPlugin_ConstraintLength.h>
  26 #include <SketchPlugin_ConstraintDistance.h>
  27 #include <SketchPlugin_ConstraintDistanceHorizontal.h>
  28 #include <SketchPlugin_ConstraintDistanceVertical.h>
  29 #include <SketchPlugin_Line.h>
  30 #include <SketchPlugin_Point.h>
  31 #include <SketchPlugin_Circle.h>
  32
  33 #include <GeomDataAPI_Point2D.h>
  34 #include <GeomAPI_Pnt.h>
  35 #include <GeomAPI_XYZ.h>
  36 #include <GeomAPI_Pnt2d.h>
  37 #include <GeomAPI_Lin2d.h>
  38
  39 #include <ModelAPI_Data.h>
  40 #include <ModelAPI_AttributeDouble.h>
  41 #include <ModelAPI_AttributeInteger.h>
  42
  43 #include <AIS_DisplaySpecialSymbol.hxx>
  44
  45 #define OCCT_28850_FIXED
  46
  47 /// Creates an aspect to be shown in length/radius dimension presentations
  48 /// \return an instance of aspect
  49 Handle(Prs3d_DimensionAspect) createDimensionAspect()
  50 {
  51   Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
  52   anAspect->MakeArrows3d(false);
  53   anAspect->MakeText3d(false);
  54   anAspect->MakeTextShaded(false);
  55   anAspect->MakeUnitsDisplayed(false);
  56   anAspect->TextAspect()->SetHeight(SketcherPrs_Tools::getConfigTextHeight());
  57   anAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
  58
  59   return anAspect;
  60 }
  61
  62 /// Update variable aspect parameters (depending on viewer scale)
  63 /// \param theDimAspect an aspect to be changed
  64 /// \param theDimValue an arrow value
  65 /// \param theTextSize an arrow value
  66 void updateArrows(Handle(Prs3d_DimensionAspect) theDimAspect,
  67   double theDimValue, double theTextSize, SketcherPrs_Tools::LocationType theLocationType)
  68 {
  69   if (theLocationType == SketcherPrs_Tools::LOCATION_AUTOMATIC) {
  70     double anArrowLength = theDimAspect->ArrowAspect()->Length();
  71      // This is not realy correct way to get viewer scale.
  72     double aViewerScale = (double) SketcherPrs_Tools::getConfigArrowSize() / anArrowLength;
  73
  74     if(theTextSize > ((theDimValue - 3 * SketcherPrs_Tools::getArrowSize()) * aViewerScale)) {
  75       theDimAspect->SetTextHorizontalPosition(Prs3d_DTHP_Left);
  76       theDimAspect->SetArrowOrientation(Prs3d_DAO_External);
  77       theDimAspect->SetExtensionSize(
  78         (theTextSize / aViewerScale + SketcherPrs_Tools::getArrowSize()) / 2.0);
  79     } else {
  80       theDimAspect->SetTextHorizontalPosition(Prs3d_DTHP_Center);
  81       theDimAspect->SetArrowOrientation(Prs3d_DAO_Internal);
  82     }
  83   }
  84   else if (theLocationType == SketcherPrs_Tools::LOCATION_RIGHT ||
  85            theLocationType == SketcherPrs_Tools::LOCATION_LEFT) {
  86     theDimAspect->SetTextHorizontalPosition(
  87       theLocationType == SketcherPrs_Tools::LOCATION_LEFT ? Prs3d_DTHP_Left : Prs3d_DTHP_Right);
  88     theDimAspect->SetArrowOrientation(Prs3d_DAO_External);
  89
  90     double anArrowLength = theDimAspect->ArrowAspect()->Length();
  91     // This is not realy correct way to get viewer scale.
  92     double aViewerScale = (double) SketcherPrs_Tools::getConfigArrowSize() / anArrowLength;
  93     theDimAspect->SetExtensionSize(
  94         (theTextSize / aViewerScale + SketcherPrs_Tools::getArrowSize()) / 2.0);
  95   }
  96   theDimAspect->TextAspect()->SetFont(Config_PropManager::string("Visualization",
  97                                       "dimension_font").c_str());
  98
  99   theDimAspect->SetArrowTailSize(theDimAspect->ArrowAspect()->Length());
 100   // The value of vertical aligment is sometimes changed
 101   theDimAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
 102 }
 103
 104
 105 static const gp_Pnt MyDefStart(0,0,0);
 106 static const gp_Pnt MyDefEnd(1,0,0);
 107 static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
 108
 109 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
 110
 111 SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
 112   SketchPlugin_Sketch* theSketcher)
 113 : AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
 114   myConstraint(theConstraint),
 115   mySketcher(theSketcher),
 116   myFirstPoint(MyDefStart),
 117   mySecondPoint(MyDefEnd),
 118   myPlane(MyDefPln),
 119   myDistance(1),
 120   myValue(0., false, "")
 121 {
 122   SetDimensionAspect(createDimensionAspect());
 123   myStyleListener = new SketcherPrs_DimensionStyleListener();
 124
 125 #ifdef OCCT_28850_FIXED
 126   if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID())
 127     SetDirection(plane()->dirX()->impl<gp_Dir>(), true);
 128   else if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
 129     SetDirection(plane()->dirY()->impl<gp_Dir>(), true);
 130 #endif
 131 }
 132
 133 SketcherPrs_LengthDimension::~SketcherPrs_LengthDimension()
 134 {
 135   delete myStyleListener;
 136 }
 137
 138 bool SketcherPrs_LengthDimension::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
 139                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 140 {
 141   gp_Pnt aPnt1, aPnt2;
 142   return readyToDisplay(theConstraint, thePlane, aPnt1, aPnt2);
 143 }
 144
 145 void SketcherPrs_LengthDimension::Compute(
 146   const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
 147   const Handle(Prs3d_Presentation)& thePresentation,
 148   const Standard_Integer theMode)
 149 {
 150   if (!plane().get())
 151     return;
 152   gp_Pnt aPnt1, aPnt2;
 153   bool aReadyToDisplay = readyToDisplay(myConstraint, plane(), aPnt1, aPnt2);
 154   if (aReadyToDisplay) {
 155     myFirstPoint = aPnt1;
 156     mySecondPoint = aPnt2;
 157
 158     myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
 159     myPlane = gp_Pln(plane()->impl<gp_Ax3>());
 160
 161     DataPtr aData = myConstraint->data();
 162     AttributeDoublePtr anAttributeValue;
 163     if (myConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID() ||
 164         myConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
 165       anAttributeValue = aData->real(SketchPlugin_ConstraintDistanceAlongDir::DISTANCE_VALUE_ID());
 166     else
 167       anAttributeValue = aData->real(SketchPlugin_Constraint::VALUE());
 168     myValue.init(anAttributeValue);
 169   }
 170
 171   // compute flyout distance
 172   SetFlyout(myDistance);
 173   SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
 174
 175   // Update variable aspect parameters (depending on viewer scale)
 176   double aTextSize = 0.0;
 177   GetValueString(aTextSize);
 178
 179   std::string aLocationAttribute;
 180   std::string aConstraintKind = myConstraint->getKind();
 181   if (aConstraintKind == SketchPlugin_ConstraintLength::ID())
 182     aLocationAttribute = SketchPlugin_ConstraintLength::LOCATION_TYPE_ID();
 183   else if (aConstraintKind == SketchPlugin_ConstraintDistance::ID())
 184     aLocationAttribute = SketchPlugin_ConstraintDistance::LOCATION_TYPE_ID();
 185   else if (aConstraintKind == SketchPlugin_ConstraintDistanceHorizontal::ID())
 186     aLocationAttribute = SketchPlugin_ConstraintDistanceHorizontal::LOCATION_TYPE_ID();
 187   else if (aConstraintKind == SketchPlugin_ConstraintDistanceVertical::ID())
 188     aLocationAttribute = SketchPlugin_ConstraintDistanceVertical::LOCATION_TYPE_ID();
 189
 190   AttributeIntegerPtr aLocAttr = std::dynamic_pointer_cast<ModelAPI_AttributeInteger>
 191     (myConstraint->data()->attribute(aLocationAttribute));
 192   SketcherPrs_Tools::LocationType aLocationType = aLocAttr->isInitialized() ?
 193     (SketcherPrs_Tools::LocationType)(aLocAttr->value()) : SketcherPrs_Tools::LOCATION_AUTOMATIC;
 194   updateArrows(DimensionAspect(), GetValue(), aTextSize, aLocationType);
 195
 196   // Update text visualization: parameter value or parameter text
 197   myStyleListener->updateDimensions(this, myValue);
 198
 199   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
 200
 201   if (!aReadyToDisplay)
 202     SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
 203                               "An empty AIS presentation: SketcherPrs_LengthDimension");
 204 }
 205
 206 bool SketcherPrs_LengthDimension::readyToDisplay(ModelAPI_Feature* theConstraint,
 207                                                  const std::shared_ptr<GeomAPI_Ax3>& thePlane,
 208                                                  gp_Pnt& thePnt1, gp_Pnt& thePnt2)
 209 {
 210   if (!thePlane)
 211     return false;
 212
 213   DataPtr aData = theConstraint->data();
 214   if (theConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 215     // The constraint is length
 216     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 217       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 218       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 219     if (!anAttr)
 220       return false;
 221
 222     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 223     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
 224       return false;
 225
 226     // Get geometry of the object
 227     DataPtr aLineData = aFeature->data();
 228     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 229       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 230       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 231     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 232       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 233       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 234     thePnt1 = thePlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 235     thePnt2 = thePlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 236     return true;
 237
 238   } else if (theConstraint->getKind() == SketchPlugin_ConstraintDistance::ID() ||
 239              theConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID() ||
 240              theConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID()) {
 241     // The constraint is distance
 242     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 243         aData, SketchPlugin_Constraint::ENTITY_A(), thePlane);
 244     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 245         aData, SketchPlugin_Constraint::ENTITY_B(), thePlane);
 246
 247     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 248     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 249     if (aPoint_A && aPoint_B) {
 250       // Both objects are points
 251       aPnt_A = aPoint_A->pnt();
 252       aPnt_B = aPoint_B->pnt();
 253     } else if (!aPoint_A && aPoint_B) {
 254       // First object is line
 255       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 256           aData, SketchPlugin_Constraint::ENTITY_A());
 257       if (aLine) {
 258         aPnt_B = aPoint_B->pnt();
 259         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 260       }
 261     } else if (aPoint_A && !aPoint_B) {
 262       // Second object is line
 263       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 264           aData, SketchPlugin_Constraint::ENTITY_B());
 265       if (aLine) {
 266         aPnt_A = aPoint_A->pnt();
 267         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 268       }
 269     }
 270     if (!aPnt_A || !aPnt_B) // Objects not found
 271       return false;
 272
 273     if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID()) {
 274       if (fabs(aPnt_A->x() - aPnt_B->x()) < Precision::Confusion())
 275         return false;
 276     }
 277     else if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID()) {
 278       if (fabs(aPnt_A->y() - aPnt_B->y()) < Precision::Confusion())
 279         return false;
 280     }
 281
 282     // Get points from these object
 283     std::shared_ptr<GeomAPI_Pnt> aPoint1 = thePlane->to3D(aPnt_A->x(), aPnt_A->y());
 284     std::shared_ptr<GeomAPI_Pnt> aPoint2 = thePlane->to3D(aPnt_B->x(), aPnt_B->y());
 285     thePnt1 = aPoint1->impl<gp_Pnt>();
 286     thePnt2 = aPoint2->impl<gp_Pnt>();
 287     return true;
 288   }
 289   return false;
 290 }
 291
 292
 293
 294 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 295                                                    const Standard_Integer theMode)
 296 {
 297   // Map the application selection modes to standard ones
 298   Standard_Integer aMode;
 299   switch (theMode) {
 300   case 0: // we should use selection of all objects
 301     aMode = 0;
 302     break;
 303   case SketcherPrs_Tools::Sel_Dimension_All:
 304     aMode = 0;
 305     break;
 306   case SketcherPrs_Tools::Sel_Dimension_Line:
 307     aMode = 1;
 308     break;
 309   case SketcherPrs_Tools::Sel_Dimension_Text:
 310     aMode = 2;
 311     break;
 312   default: {
 313     // there are own selection modes, so the others should be ignored
 314     // otherwise, the text selection appears in the viewer
 315     return;
 316   }
 317   }
 318   SetSelToleranceForText2d(SketcherPrs_Tools::getArrowSize()/5.);
 319   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 320 }