src/GeomAPI/GeomAPI_AISObject.cpp

   1 // File:        GeomAPI_AISObject.cpp
   2 // Created:     25 Jun 2014
   3 // Author:      Artem ZHIDKOV
   4
   5 #include <GeomAPI_AISObject.h>
   6
   7 #include <GeomAPI_Circ.h>
   8 #include <GeomAPI_Dir.h>
   9 #include <GeomAPI_Lin.h>
  10 #include <GeomAPI_Pln.h>
  11 #include <GeomAPI_Pnt.h>
  12 #include <GeomAPI_Shape.h>
  13 #include <GeomAPI_XYZ.h>
  14
  15 #include <Geom_Plane.hxx>
  16 #include <TopoDS_Shape.hxx>
  17 #include <Quantity_NameOfColor.hxx>
  18 #include <BRepBndLib.hxx>
  19
  20 #include <AIS_InteractiveObject.hxx>
  21 #include <AIS_LengthDimension.hxx>
  22 #include <AIS_ParallelRelation.hxx>
  23 #include <AIS_PerpendicularRelation.hxx>
  24 #include <AIS_RadiusDimension.hxx>
  25 #include <AIS_Shape.hxx>
  26 #include <AIS_FixRelation.hxx>
  27
  28 const double tolerance = 1e-7;
  29
  30 const int CONSTRAINT_TEXT_HEIGHT = 28;  /// the text height of the constraint
  31 const int CONSTRAINT_TEXT_SELECTION_TOLERANCE = 20;  /// the text selection tolerance
  32
  33 GeomAPI_AISObject::GeomAPI_AISObject()
  34     : GeomAPI_Interface(new Handle(AIS_InteractiveObject)())
  35 {
  36 }
  37
  38 void GeomAPI_AISObject::createShape(std::shared_ptr<GeomAPI_Shape> theShape)
  39 {
  40   const TopoDS_Shape& aTDS =
  41       (theShape && theShape->implPtr<TopoDS_Shape>()) ?
  42           theShape->impl<TopoDS_Shape>() : TopoDS_Shape();
  43
  44   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
  45   if (!anAIS.IsNull()) {
  46     Handle(AIS_Shape) aShapeAIS = Handle(AIS_Shape)::DownCast(anAIS);
  47     if (aShapeAIS) {
  48       // if the AIS object is displayed in the opened local context in some mode, additional
  49       // AIS sub objects are created there. They should be rebuild for correct selecting.
  50       // It is possible to correct it by closing local context before the shape set and opening
  51       // after. Another workaround to thrown down the selection and reselecting the AIS.
  52       // If there was a problem here, try the first solution with close/open local context.
  53
  54       aShapeAIS->Set(aTDS);
  55       aShapeAIS->Redisplay(Standard_True);
  56     }
  57   } else
  58     setImpl(new Handle(AIS_InteractiveObject)(new AIS_Shape(aTDS)));
  59 }
  60
  61 void GeomAPI_AISObject::createDistance(std::shared_ptr<GeomAPI_Pnt> theStartPoint,
  62                                        std::shared_ptr<GeomAPI_Pnt> theEndPoint,
  63                                        std::shared_ptr<GeomAPI_Pnt> theFlyoutPoint,
  64                                        std::shared_ptr<GeomAPI_Pln> thePlane, double theDistance)
  65 {
  66   double aFlyout = 0;
  67   if (theFlyoutPoint) {
  68     double aDist = 0.0;
  69     if (theStartPoint->distance(theEndPoint) < tolerance)
  70       aDist = theStartPoint->distance(theFlyoutPoint);
  71     else {
  72       std::shared_ptr<GeomAPI_Lin> aLine = std::shared_ptr<GeomAPI_Lin>(
  73           new GeomAPI_Lin(theStartPoint, theEndPoint));
  74       aDist = aLine->distance(theFlyoutPoint);
  75     }
  76
  77     std::shared_ptr<GeomAPI_XYZ> aLineDir = theEndPoint->xyz()->decreased(theStartPoint->xyz());
  78     std::shared_ptr<GeomAPI_XYZ> aFOutDir = theFlyoutPoint->xyz()->decreased(
  79         theStartPoint->xyz());
  80     std::shared_ptr<GeomAPI_XYZ> aNorm = thePlane->direction()->xyz();
  81     if (aLineDir->cross(aFOutDir)->dot(aNorm) < 0)
  82       aDist = -aDist;
  83     aFlyout = aDist;
  84   }
  85
  86   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
  87   if (anAIS.IsNull()) {
  88     Handle(AIS_LengthDimension) aDimAIS = new AIS_LengthDimension(theStartPoint->impl<gp_Pnt>(),
  89                                                                   theEndPoint->impl<gp_Pnt>(),
  90                                                                   thePlane->impl<gp_Pln>());
  91     aDimAIS->SetCustomValue(theDistance);
  92
  93     Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
  94     anAspect->MakeArrows3d(Standard_False);
  95     anAspect->MakeText3d(false);
  96     anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
  97     anAspect->MakeTextShaded(false);
  98     anAspect->ArrowAspect()->SetLength(theDistance / 10.);
  99     aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false);
 100     aDimAIS->SetDimensionAspect(anAspect);
 101     aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
 102     aDimAIS->SetFlyout(aFlyout);
 103
 104     setImpl(new Handle(AIS_InteractiveObject)(aDimAIS));
 105   } else {
 106     // update presentation
 107     Handle(AIS_LengthDimension) aDimAIS = Handle(AIS_LengthDimension)::DownCast(anAIS);
 108     if (!aDimAIS.IsNull()) {
 109       aDimAIS->SetMeasuredGeometry(theStartPoint->impl<gp_Pnt>(), theEndPoint->impl<gp_Pnt>(),
 110                                    thePlane->impl<gp_Pln>());
 111       aDimAIS->SetCustomValue(theDistance);
 112       aDimAIS->SetFlyout(aFlyout);
 113
 114       aDimAIS->Redisplay(Standard_True);
 115     }
 116   }
 117 }
 118
 119 void GeomAPI_AISObject::createRadius(std::shared_ptr<GeomAPI_Circ> theCircle,
 120                                      std::shared_ptr<GeomAPI_Pnt> theFlyoutPoint,
 121                                      double theRadius)
 122 {
 123   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
 124
 125   // TODO: a bug in AIS_RadiusDimension:
 126   // The anchor point can't be myCirc.Location() - an exception is raised.
 127   // But we need exactly this case...
 128   // We want to show a radius dimension starting from the circle centre and
 129   // ending at the user-defined point.
 130   // Also, if anchor point coincides with myP2, the radius dimension is not displayed at all.
 131   std::shared_ptr<GeomAPI_Pnt> anAnchor = theCircle->project(theFlyoutPoint);
 132   std::shared_ptr<GeomAPI_XYZ> anAnchorXYZ = anAnchor->xyz();
 133   anAnchorXYZ = anAnchorXYZ->decreased(aCenter->xyz());
 134   std::shared_ptr<GeomAPI_Dir> aDeltaDir(new GeomAPI_Dir(anAnchorXYZ));
 135   const double aDelta = 1e-3;
 136   anAnchor->setX(anAnchor->x() + aDelta * aDeltaDir->x());
 137   anAnchor->setY(anAnchor->y() + aDelta * aDeltaDir->y());
 138   anAnchor->setZ(anAnchor->z() + aDelta * aDeltaDir->z());
 139
 140   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 141   if (anAIS.IsNull()) {
 142     Handle(AIS_RadiusDimension) aDimAIS = new AIS_RadiusDimension(theCircle->impl<gp_Circ>(),
 143                                                                   anAnchor->impl<gp_Pnt>());
 144     aDimAIS->SetCustomValue(theRadius);
 145
 146     Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
 147     anAspect->MakeArrows3d(Standard_False);
 148     anAspect->MakeText3d(false);
 149     anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
 150     anAspect->ArrowAspect()->SetLength(theRadius / 5.);
 151     anAspect->MakeTextShaded(false);
 152     aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false);
 153     aDimAIS->SetDimensionAspect(anAspect);
 154     aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
 155
 156     setImpl(new Handle(AIS_InteractiveObject)(aDimAIS));
 157   } else {
 158     // update presentation
 159     Handle(AIS_RadiusDimension) aDimAIS = Handle(AIS_RadiusDimension)::DownCast(anAIS);
 160     if (!aDimAIS.IsNull()) {
 161       aDimAIS->SetMeasuredGeometry(theCircle->impl<gp_Circ>(), anAnchor->impl<gp_Pnt>());
 162       aDimAIS->SetCustomValue(theRadius);
 163       aDimAIS->Redisplay(Standard_True);
 164     }
 165   }
 166 }
 167
 168 void GeomAPI_AISObject::createParallel(std::shared_ptr<GeomAPI_Shape> theLine1,
 169                                        std::shared_ptr<GeomAPI_Shape> theLine2,
 170                                        std::shared_ptr<GeomAPI_Pnt> theFlyoutPoint,
 171                                        std::shared_ptr<GeomAPI_Pln> thePlane)
 172 {
 173   Handle(Geom_Plane) aPlane = new Geom_Plane(thePlane->impl<gp_Pln>());
 174   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 175   if (anAIS.IsNull()) {
 176     Handle(AIS_ParallelRelation) aParallel = new AIS_ParallelRelation(
 177         theLine1->impl<TopoDS_Shape>(), theLine2->impl<TopoDS_Shape>(), aPlane);
 178     if (theFlyoutPoint)
 179       aParallel->SetPosition(theFlyoutPoint->impl<gp_Pnt>());
 180
 181     setImpl(new Handle(AIS_InteractiveObject)(aParallel));
 182   } else {
 183     Handle(AIS_ParallelRelation) aParallel = Handle(AIS_ParallelRelation)::DownCast(anAIS);
 184     if (!aParallel.IsNull()) {
 185       aParallel->SetFirstShape(theLine1->impl<TopoDS_Shape>());
 186       aParallel->SetSecondShape(theLine2->impl<TopoDS_Shape>());
 187       aParallel->SetPlane(aPlane);
 188       if (theFlyoutPoint)
 189         aParallel->SetPosition(theFlyoutPoint->impl<gp_Pnt>());
 190       aParallel->Redisplay(Standard_True);
 191     }
 192   }
 193 }
 194
 195 void GeomAPI_AISObject::createPerpendicular(std::shared_ptr<GeomAPI_Shape> theLine1,
 196                                             std::shared_ptr<GeomAPI_Shape> theLine2,
 197                                             std::shared_ptr<GeomAPI_Pln> thePlane)
 198 {
 199   Handle(Geom_Plane) aPlane = new Geom_Plane(thePlane->impl<gp_Pln>());
 200   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 201   if (anAIS.IsNull()) {
 202     Handle(AIS_PerpendicularRelation) aPerpendicular = new AIS_PerpendicularRelation(
 203         theLine1->impl<TopoDS_Shape>(), theLine2->impl<TopoDS_Shape>(), aPlane);
 204
 205     setImpl(new Handle(AIS_InteractiveObject)(aPerpendicular));
 206   } else {
 207     Handle(AIS_PerpendicularRelation) aPerpendicular = Handle(AIS_PerpendicularRelation)::DownCast(
 208         anAIS);
 209     if (!aPerpendicular.IsNull()) {
 210       aPerpendicular->SetFirstShape(theLine1->impl<TopoDS_Shape>());
 211       aPerpendicular->SetSecondShape(theLine2->impl<TopoDS_Shape>());
 212       aPerpendicular->SetPlane(aPlane);
 213       aPerpendicular->Redisplay(Standard_True);
 214     }
 215   }
 216 }
 217
 218
 219 void GeomAPI_AISObject::createFixed(std::shared_ptr<GeomAPI_Shape> theShape,
 220                                     std::shared_ptr<GeomAPI_Pln> thePlane)
 221 {
 222   Handle(Geom_Plane) aPlane = new Geom_Plane(thePlane->impl<gp_Pln>());
 223   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 224   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 225   Handle(AIS_FixRelation) aFixPrs;
 226   if (anAIS.IsNull()) {
 227     aFixPrs = new AIS_FixRelation(aShape, aPlane);
 228
 229     setImpl(new Handle(AIS_InteractiveObject)(aFixPrs));
 230   } else {
 231     aFixPrs = Handle(AIS_FixRelation)::DownCast(anAIS);
 232     if (!aFixPrs.IsNull()) {
 233       aFixPrs->SetFirstShape(aShape);
 234       aFixPrs->SetPlane(aPlane);
 235       aFixPrs->Redisplay(Standard_True);
 236     }
 237   }
 238   if (!aFixPrs.IsNull()) {
 239     Bnd_Box aBox;
 240     BRepBndLib::Add(aShape, aBox);
 241     double aXmin, aXmax, aYmin, aYmax, aZmin, aZmax;
 242     aBox.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
 243     gp_Pnt aXYZ1(aXmin, aXmax, aYmin);
 244     gp_Pnt aXYZ2(aXmax, aYmax, aZmax);
 245     double aDist = aXYZ1.Distance(aXYZ2);
 246     if (aDist > Precision::Confusion()) {
 247       aFixPrs->SetArrowSize(aDist/8.);
 248     }
 249   }
 250 }
 251
 252
 253
 254 void GeomAPI_AISObject::setColor(const int& theColor)
 255 {
 256   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 257   if (anAIS.IsNull())
 258     return;
 259   Quantity_Color aColor((Quantity_NameOfColor) theColor);
 260   anAIS->SetColor(aColor);
 261   Handle(AIS_Dimension) aDimAIS = Handle(AIS_Dimension)::DownCast(anAIS);
 262   if (!aDimAIS.IsNull()) {
 263     aDimAIS->DimensionAspect()->SetCommonColor(aColor);
 264   }
 265 }
 266
 267 void GeomAPI_AISObject::setWidth(const double& theWidth)
 268 {
 269   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 270   if (anAIS.IsNull())
 271     return;
 272   anAIS->SetWidth(theWidth);
 273 }
 274
 275 void GeomAPI_AISObject::setColor(int theR, int theG, int theB)
 276 {
 277   Handle(AIS_InteractiveObject) anAIS = impl<Handle(AIS_InteractiveObject)>();
 278   if (anAIS.IsNull())
 279     return;
 280   Quantity_Color aColor(theR / 255., theG / 255., theB / 255., Quantity_TOC_RGB);
 281   anAIS->SetColor(aColor);
 282   Handle(AIS_Dimension) aDimAIS = Handle(AIS_Dimension)::DownCast(anAIS);
 283   if (!aDimAIS.IsNull()) {
 284     aDimAIS->DimensionAspect()->SetCommonColor(aColor);
 285   }
 286 }
 287
 288 bool GeomAPI_AISObject::empty() const
 289 {
 290   Handle(AIS_InteractiveObject) anAIS = const_cast<GeomAPI_AISObject*>(this)
 291       ->impl<Handle(AIS_InteractiveObject)>();
 292   if (anAIS.IsNull())
 293     return true;
 294   return false;
 295 }
 296