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0032281: Visualization - add Select3D_SensitiveCylinder

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- implemented Select3D_SensitiveCylinder class performing an analytical intersection with an untriangulated cone/cylinder
- added tests
This commit is contained in:
mkrylova
2021-07-05 15:06:50 +03:00
committed by bugmaster
parent 8a77384b0c
commit 9dd8af261f
32 changed files with 1568 additions and 4 deletions
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140
src/StdSelect/StdSelect_BRepSelectionTool.cxx
View File

@@ -27,6 +27,9 @@
#include <GCPnts_TangentialDeflection.hxx>
#include <GeomAbs_SurfaceType.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_Plane.hxx>
#include <Geom_SphericalSurface.hxx>
#include <gp_Circ.hxx>
#include <Poly_Array1OfTriangle.hxx>
@@ -37,6 +40,7 @@
#include <Select3D_SensitiveBox.hxx>
#include <Select3D_SensitiveCircle.hxx>
#include <Select3D_SensitiveCurve.hxx>
#include <Select3D_SensitiveCylinder.hxx>
#include <Select3D_SensitiveEntity.hxx>
#include <Select3D_SensitiveFace.hxx>
#include <Select3D_SensitiveGroup.hxx>
@@ -268,6 +272,142 @@ void StdSelect_BRepSelectionTool::ComputeSensitive (const TopoDS_Shape& theShape
{
TopTools_IndexedMapOfShape aSubfacesMap;
TopExp::MapShapes (theShape, TopAbs_FACE, aSubfacesMap);
if (aSubfacesMap.Extent() == 2) // detect cone
{
const TopoDS_Face* aFaces[2] =
{
&TopoDS::Face (aSubfacesMap.FindKey (1)),
&TopoDS::Face (aSubfacesMap.FindKey (2))
};
TopLoc_Location aLocSurf;
const Handle(Geom_Surface)* aSurfaces[2] =
{
&BRep_Tool::Surface (*aFaces[0], aLocSurf),
&BRep_Tool::Surface (*aFaces[1], aLocSurf)
};
Standard_Integer aConIndex = 0;
Handle(Geom_ConicalSurface) aGeomCone = Handle(Geom_ConicalSurface)::DownCast (*aSurfaces[0]);
Handle(Geom_Plane) aGeomPln;
if (!aGeomCone.IsNull())
{
aGeomPln = Handle(Geom_Plane)::DownCast (*aSurfaces[1]);
}
else
{
aConIndex = 1;
aGeomCone = Handle(Geom_ConicalSurface)::DownCast (*aSurfaces[1]);
aGeomPln = Handle(Geom_Plane)::DownCast (*aSurfaces[0]);
}
if (!aGeomCone.IsNull()
&& !aGeomPln.IsNull()
&& aGeomPln->Position().Direction().IsEqual (aGeomCone->Position().Direction(), Precision::Angular()))
{
const gp_Cone aCone = BRepAdaptor_Surface (*aFaces[aConIndex]).Cone();
const Standard_Real aRad1 = aCone.RefRadius();
const Standard_Real aHeight = (aRad1 != 0.0)
? aRad1 / Abs (Tan (aCone.SemiAngle()))
: aCone.Location().Distance (aGeomPln->Location());
const Standard_Real aRad2 = (aRad1 != 0.0) ? 0.0 : Tan (aCone.SemiAngle()) * aHeight;
gp_Trsf aTrsf;
aTrsf.SetTransformation (aCone.Position(), gp_Ax3());
Handle(Select3D_SensitiveCylinder) aSensSCyl = new Select3D_SensitiveCylinder (theOwner, aRad1, aRad2, aHeight, aTrsf);
theSelection->Add (aSensSCyl);
break;
}
}
if (aSubfacesMap.Extent() == 3) // detect cylinder or truncated cone
{
const TopoDS_Face* aFaces[3] =
{
&TopoDS::Face (aSubfacesMap.FindKey (1)),
&TopoDS::Face (aSubfacesMap.FindKey (2)),
&TopoDS::Face (aSubfacesMap.FindKey (3))
};
TopLoc_Location aLocSurf;
const Handle(Geom_Surface)* aSurfaces[3] =
{
&BRep_Tool::Surface (*aFaces[0], aLocSurf),
&BRep_Tool::Surface (*aFaces[1], aLocSurf),
&BRep_Tool::Surface (*aFaces[2], aLocSurf)
};
Standard_Integer aConIndex = -1, aNbPlanes = 0;
Handle(Geom_ConicalSurface) aGeomCone;
Handle(Geom_CylindricalSurface) aGeomCyl;
Handle(Geom_Plane) aGeomPlanes[2];
for (Standard_Integer aSurfIter = 0; aSurfIter < 3; ++aSurfIter)
{
const Handle(Geom_Surface)& aSurf = *aSurfaces[aSurfIter];
if (aConIndex == -1)
{
aGeomCone = Handle (Geom_ConicalSurface)::DownCast (aSurf);
if (!aGeomCone.IsNull())
{
aConIndex = aSurfIter;
continue;
}
aGeomCyl = Handle (Geom_CylindricalSurface)::DownCast (aSurf);
if (!aGeomCyl.IsNull())
{
aConIndex = aSurfIter;
continue;
}
}
if (aNbPlanes < 2)
{
aGeomPlanes[aNbPlanes] = Handle(Geom_Plane)::DownCast (aSurf);
if (!aGeomPlanes[aNbPlanes].IsNull())
{
++aNbPlanes;
}
}
}
if (!aGeomCone.IsNull())
{
if (!aGeomPlanes[0].IsNull()
&& !aGeomPlanes[1].IsNull()
&& aGeomPlanes[0]->Position().Direction().IsEqual (aGeomCone->Position().Direction(), Precision::Angular())
&& aGeomPlanes[1]->Position().Direction().IsEqual (aGeomCone->Position().Direction(), Precision::Angular()))
{
const gp_Cone aCone = BRepAdaptor_Surface (*aFaces[aConIndex]).Cone();
const Standard_Real aRad1 = aCone.RefRadius();
const Standard_Real aHeight = aGeomPlanes[0]->Location().Distance (aGeomPlanes[1]->Location());
gp_Trsf aTrsf;
aTrsf.SetTransformation (aCone.Position(), gp_Ax3());
const Standard_Real aTriangleHeight = (aCone.SemiAngle() > 0.0)
? aRad1 / Tan (aCone.SemiAngle())
: aRad1 / Tan (Abs (aCone.SemiAngle())) - aHeight;
const Standard_Real aRad2 = (aCone.SemiAngle() > 0.0)
? aRad1 * (aTriangleHeight + aHeight) / aTriangleHeight
: aRad1 * aTriangleHeight / (aTriangleHeight + aHeight);
Handle(Select3D_SensitiveCylinder) aSensSCyl = new Select3D_SensitiveCylinder (theOwner, aRad1, aRad2, aHeight, aTrsf);
theSelection->Add (aSensSCyl);
break;
}
}
else if (!aGeomCyl.IsNull())
{
if (!aGeomPlanes[0].IsNull()
&& !aGeomPlanes[1].IsNull()
&& aGeomPlanes[0]->Position().Direction().IsEqual (aGeomCyl->Position().Direction(), Precision::Angular())
&& aGeomPlanes[1]->Position().Direction().IsEqual (aGeomCyl->Position().Direction(), Precision::Angular()))
{
const gp_Cylinder aCyl = BRepAdaptor_Surface (*aFaces[aConIndex]).Cylinder();
const Standard_Real aRad = aCyl.Radius();
const Standard_Real aHeight = aGeomPlanes[0]->Location().Distance (aGeomPlanes[1]->Location());
gp_Trsf aTrsf;
aTrsf.SetTransformation (aCyl.Position(), gp_Ax3());
Handle(Select3D_SensitiveCylinder) aSensSCyl = new Select3D_SensitiveCylinder (theOwner, aRad, aRad, aHeight, aTrsf);
theSelection->Add (aSensSCyl);
break;
}
}
}
for (Standard_Integer aShIndex = 1; aShIndex <= aSubfacesMap.Extent(); ++aShIndex)
{
ComputeSensitive (aSubfacesMap (aShIndex), theOwner,

1
src/StdSelect/StdSelect_TypeOfSelectionImage.hxx
View File

@@ -23,6 +23,7 @@ enum StdSelect_TypeOfSelectionImage
StdSelect_TypeOfSelectionImage_UnnormalizedDepth, //!< unnormalized depth (grayscale)
StdSelect_TypeOfSelectionImage_ColoredDetectedObject, //!< color of detected object
StdSelect_TypeOfSelectionImage_ColoredEntity, //!< random color for each entity
StdSelect_TypeOfSelectionImage_ColoredEntityType, //!< random color for each entity type
StdSelect_TypeOfSelectionImage_ColoredOwner, //!< random color for each owner
StdSelect_TypeOfSelectionImage_ColoredSelectionMode, //!< color of selection mode
StdSelect_TypeOfSelectionImage_SurfaceNormal //!< normal direction values