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   gp_Pnt aPnt1, aPnt2;
 151   bool aReadyToDisplay = readyToDisplay(myConstraint, plane(), aPnt1, aPnt2);
 152   if (aReadyToDisplay) {
 153     myFirstPoint = aPnt1;
 154     mySecondPoint = aPnt2;
 155
 156     myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
 157     myPlane = gp_Pln(plane()->impl<gp_Ax3>());
 158
 159     DataPtr aData = myConstraint->data();
 160     AttributeDoublePtr anAttributeValue;
 161     if (myConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID() ||
 162         myConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID())
 163       anAttributeValue = aData->real(SketchPlugin_ConstraintDistanceAlongDir::DISTANCE_VALUE_ID());
 164     else
 165       anAttributeValue = aData->real(SketchPlugin_Constraint::VALUE());
 166     myValue.init(anAttributeValue);
 167   }
 168
 169   // compute flyout distance
 170   SetFlyout(myDistance);
 171   SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
 172
 173   // Update variable aspect parameters (depending on viewer scale)
 174   double aTextSize = 0.0;
 175   GetValueString(aTextSize);
 176
 177   std::string aLocationAttribute;
 178   std::string aConstraintKind = myConstraint->getKind();
 179   if (aConstraintKind == SketchPlugin_ConstraintLength::ID())
 180     aLocationAttribute = SketchPlugin_ConstraintLength::LOCATION_TYPE_ID();
 181   else if (aConstraintKind == SketchPlugin_ConstraintDistance::ID())
 182     aLocationAttribute = SketchPlugin_ConstraintDistance::LOCATION_TYPE_ID();
 183   else if (aConstraintKind == SketchPlugin_ConstraintDistanceHorizontal::ID())
 184     aLocationAttribute = SketchPlugin_ConstraintDistanceHorizontal::LOCATION_TYPE_ID();
 185   else if (aConstraintKind == SketchPlugin_ConstraintDistanceVertical::ID())
 186     aLocationAttribute = SketchPlugin_ConstraintDistanceVertical::LOCATION_TYPE_ID();
 187
 188   AttributeIntegerPtr aLocAttr = std::dynamic_pointer_cast<ModelAPI_AttributeInteger>
 189     (myConstraint->data()->attribute(aLocationAttribute));
 190   SketcherPrs_Tools::LocationType aLocationType = aLocAttr->isInitialized() ?
 191     (SketcherPrs_Tools::LocationType)(aLocAttr->value()) : SketcherPrs_Tools::LOCATION_AUTOMATIC;
 192   updateArrows(DimensionAspect(), GetValue(), aTextSize, aLocationType);
 193
 194   // Update text visualization: parameter value or parameter text
 195   myStyleListener->updateDimensions(this, myValue);
 196
 197   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
 198
 199   if (!aReadyToDisplay)
 200     SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
 201                               "An empty AIS presentation: SketcherPrs_LengthDimension");
 202 }
 203
 204 bool SketcherPrs_LengthDimension::readyToDisplay(ModelAPI_Feature* theConstraint,
 205                                                  const std::shared_ptr<GeomAPI_Ax3>& thePlane,
 206                                                  gp_Pnt& thePnt1, gp_Pnt& thePnt2)
 207 {
 208   if (!thePlane)
 209     return false;
 210
 211   DataPtr aData = theConstraint->data();
 212   if (theConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
 213     // The constraint is length
 214     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
 215       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 216       (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 217     if (!anAttr)
 218       return false;
 219
 220     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
 221     if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
 222       return false;
 223
 224     // Get geometry of the object
 225     DataPtr aLineData = aFeature->data();
 226     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint =
 227       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 228       (aLineData->attribute(SketchPlugin_Line::START_ID()));
 229     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint =
 230       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 231       (aLineData->attribute(SketchPlugin_Line::END_ID()));
 232     thePnt1 = thePlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
 233     thePnt2 = thePlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
 234     return true;
 235
 236   } else if (theConstraint->getKind() == SketchPlugin_ConstraintDistance::ID() ||
 237              theConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID() ||
 238              theConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID()) {
 239     // The constraint is distance
 240     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
 241         aData, SketchPlugin_Constraint::ENTITY_A(), thePlane);
 242     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
 243         aData, SketchPlugin_Constraint::ENTITY_B(), thePlane);
 244
 245     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
 246     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
 247     if (aPoint_A && aPoint_B) {
 248       // Both objects are points
 249       aPnt_A = aPoint_A->pnt();
 250       aPnt_B = aPoint_B->pnt();
 251     } else if (!aPoint_A && aPoint_B) {
 252       // First object is line
 253       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 254           aData, SketchPlugin_Constraint::ENTITY_A());
 255       if (aLine) {
 256         aPnt_B = aPoint_B->pnt();
 257         aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
 258       }
 259     } else if (aPoint_A && !aPoint_B) {
 260       // Second object is line
 261       FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
 262           aData, SketchPlugin_Constraint::ENTITY_B());
 263       if (aLine) {
 264         aPnt_A = aPoint_A->pnt();
 265         aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
 266       }
 267     }
 268     if (!aPnt_A || !aPnt_B) // Objects not found
 269       return false;
 270
 271     if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceHorizontal::ID()) {
 272       if (fabs(aPnt_A->x() - aPnt_B->x()) < Precision::Confusion())
 273         return false;
 274     }
 275     else if (theConstraint->getKind() == SketchPlugin_ConstraintDistanceVertical::ID()) {
 276       if (fabs(aPnt_A->y() - aPnt_B->y()) < Precision::Confusion())
 277         return false;
 278     }
 279
 280     // Get points from these object
 281     std::shared_ptr<GeomAPI_Pnt> aPoint1 = thePlane->to3D(aPnt_A->x(), aPnt_A->y());
 282     std::shared_ptr<GeomAPI_Pnt> aPoint2 = thePlane->to3D(aPnt_B->x(), aPnt_B->y());
 283     thePnt1 = aPoint1->impl<gp_Pnt>();
 284     thePnt2 = aPoint2->impl<gp_Pnt>();
 285     return true;
 286   }
 287   return false;
 288 }
 289
 290
 291
 292 void SketcherPrs_LengthDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 293                                                    const Standard_Integer theMode)
 294 {
 295   // Map the application selection modes to standard ones
 296   Standard_Integer aMode;
 297   switch (theMode) {
 298   case 0: // we should use selection of all objects
 299     aMode = 0;
 300     break;
 301   case SketcherPrs_Tools::Sel_Dimension_All:
 302     aMode = 0;
 303     break;
 304   case SketcherPrs_Tools::Sel_Dimension_Line:
 305     aMode = 1;
 306     break;
 307   case SketcherPrs_Tools::Sel_Dimension_Text:
 308     aMode = 2;
 309     break;
 310   default: {
 311     // there are own selection modes, so the others should be ignored
 312     // otherwise, the text selection appears in the viewer
 313     return;
 314   }
 315   }
 316   SetSelToleranceForText2d(SketcherPrs_Tools::getArrowSize()/5.);
 317   AIS_LengthDimension::ComputeSelection(aSelection, aMode);
 318 }