#include <TCollection_ExtendedString.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
+#include <TopoDS_Edge.hxx>
#include <TopoDS_Vertex.hxx>
#include <Units.hxx>
#include <Units_UnitsDictionary.hxx>
namespace
{
// default text strings
- static const Standard_Utf32Char THE_FILL_CHARACTER ('0');
static const TCollection_ExtendedString THE_EMPTY_LABEL;
static const TCollection_AsciiString THE_UNDEFINED_UNITS;
return Standard_False;
}
+//=======================================================================
+//function : CircleFromEdge
+//purpose : if possible computes circle from edge
+//=======================================================================
+Standard_Boolean AIS_Dimension::CircleFromEdge (const TopoDS_Edge& theEdge,
+ gp_Circ& theCircle,
+ gp_Pnt& theFirstPoint,
+ gp_Pnt& theLastPoint)
+{
+ BRepAdaptor_Curve anAdaptedCurve (theEdge);
+ switch (anAdaptedCurve.GetType())
+ {
+ case GeomAbs_Circle:
+ {
+ theCircle = anAdaptedCurve.Circle();
+ break;
+ }
+ case GeomAbs_Ellipse:
+ {
+ gp_Elips anEll = anAdaptedCurve.Ellipse();
+ if ((anEll.MinorRadius() - anEll.MajorRadius()) >= Precision::Confusion())
+ {
+ return Standard_False;
+ }
+ theCircle = gp_Circ(anEll.Position(),anEll.MinorRadius());
+ break;
+ }
+ case GeomAbs_Line:
+ case GeomAbs_Hyperbola:
+ case GeomAbs_Parabola:
+ case GeomAbs_BezierCurve:
+ case GeomAbs_BSplineCurve:
+ case GeomAbs_OtherCurve:
+ default:
+ return Standard_False;
+ }
+
+ theFirstPoint = anAdaptedCurve.Value (anAdaptedCurve.FirstParameter());
+ theLastPoint = anAdaptedCurve.Value (anAdaptedCurve.LastParameter());
+ return Standard_True;
+}
+
//=======================================================================
//function : InitCircularDimension
//purpose :
Standard_Real aFirstParam = 0.0;
Standard_Real aLastParam = 0.0;
- // discover circular geometry
- if (theShape.ShapeType() == TopAbs_FACE)
+ // Discover circular geometry
+ switch (theShape.ShapeType())
{
- AIS::GetPlaneFromFace (TopoDS::Face (theShape), aPln, aBasisSurf, aSurfType, anOffset);
-
- if (aSurfType == AIS_KOS_Plane)
+ case TopAbs_FACE:
{
- Handle(Geom_Curve) aCurve;
- if (!CircleFromPlanarFace (TopoDS::Face (theShape), aCurve, aFirstPoint, aLastPoint))
- {
- return Standard_False;
- }
+ AIS::GetPlaneFromFace (TopoDS::Face (theShape), aPln, aBasisSurf, aSurfType, anOffset);
- theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
- }
- else
- {
- gp_Pnt aCurPos;
- BRepAdaptor_Surface aSurf1 (TopoDS::Face (theShape));
- Standard_Real aFirstU = aSurf1.FirstUParameter();
- Standard_Real aLastU = aSurf1.LastUParameter();
- Standard_Real aFirstV = aSurf1.FirstVParameter();
- Standard_Real aLastV = aSurf1.LastVParameter();
- Standard_Real aMidU = (aFirstU + aLastU) * 0.5;
- Standard_Real aMidV = (aFirstV + aLastV) * 0.5;
- aSurf1.D0 (aMidU, aMidV, aCurPos);
- Handle (Adaptor3d_HCurve) aBasisCurve;
- Standard_Boolean isExpectedType = Standard_False;
- if (aSurfType == AIS_KOS_Cylinder)
+ if (aSurfType == AIS_KOS_Plane)
{
- isExpectedType = Standard_True;
+ Handle(Geom_Curve) aCurve;
+ if (!CircleFromPlanarFace (TopoDS::Face (theShape), aCurve, aFirstPoint, aLastPoint))
+ {
+ return Standard_False;
+ }
+
+ theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
}
else
{
- if (aSurfType == AIS_KOS_Revolution)
+ gp_Pnt aCurPos;
+ BRepAdaptor_Surface aSurf1 (TopoDS::Face (theShape));
+ Standard_Real aFirstU = aSurf1.FirstUParameter();
+ Standard_Real aLastU = aSurf1.LastUParameter();
+ Standard_Real aFirstV = aSurf1.FirstVParameter();
+ Standard_Real aLastV = aSurf1.LastVParameter();
+ Standard_Real aMidU = (aFirstU + aLastU) * 0.5;
+ Standard_Real aMidV = (aFirstV + aLastV) * 0.5;
+ aSurf1.D0 (aMidU, aMidV, aCurPos);
+ Handle (Adaptor3d_HCurve) aBasisCurve;
+ Standard_Boolean isExpectedType = Standard_False;
+ if (aSurfType == AIS_KOS_Cylinder)
{
- aBasisCurve = aSurf1.BasisCurve();
- if (aBasisCurve->GetType() == GeomAbs_Line)
- {
- isExpectedType = Standard_True;
- }
+ isExpectedType = Standard_True;
}
- else if (aSurfType == AIS_KOS_Extrusion)
+ else
{
- aBasisCurve = aSurf1.BasisCurve();
- if (aBasisCurve->GetType() == GeomAbs_Circle)
+ if (aSurfType == AIS_KOS_Revolution)
+ {
+ aBasisCurve = aSurf1.BasisCurve();
+ if (aBasisCurve->GetType() == GeomAbs_Line)
+ {
+ isExpectedType = Standard_True;
+ }
+ }
+ else if (aSurfType == AIS_KOS_Extrusion)
{
- isExpectedType = Standard_True;
+ aBasisCurve = aSurf1.BasisCurve();
+ if (aBasisCurve->GetType() == GeomAbs_Circle)
+ {
+ isExpectedType = Standard_True;
+ }
}
}
- }
- if (!isExpectedType)
- {
- return Standard_False;
- }
+ if (!isExpectedType)
+ {
+ return Standard_False;
+ }
- Handle(Geom_Curve) aCurve;
- aCurve = aBasisSurf->VIso(aMidV);
- if (aCurve->DynamicType() == STANDARD_TYPE (Geom_Circle))
- {
- theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
- }
- else if (aCurve->DynamicType() == STANDARD_TYPE (Geom_TrimmedCurve))
- {
- Handle(Geom_TrimmedCurve) aTrimmedCurve = Handle(Geom_TrimmedCurve)::DownCast (aCurve);
- aFirstU = aTrimmedCurve->FirstParameter();
- aLastU = aTrimmedCurve->LastParameter();
- if (aTrimmedCurve->DynamicType() == STANDARD_TYPE (Geom_Circle))
+ Handle(Geom_Curve) aCurve = aBasisSurf->VIso(aMidV);
+ if (aCurve->DynamicType() == STANDARD_TYPE (Geom_Circle))
{
- theCircle = Handle(Geom_Circle)::DownCast(aTrimmedCurve)->Circ();
+ theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
+ }
+ else if (aCurve->DynamicType() == STANDARD_TYPE (Geom_TrimmedCurve))
+ {
+ Handle(Geom_TrimmedCurve) aTrimmedCurve = Handle(Geom_TrimmedCurve)::DownCast (aCurve);
+ aFirstU = aTrimmedCurve->FirstParameter();
+ aLastU = aTrimmedCurve->LastParameter();
+ if (aTrimmedCurve->BasisCurve()->DynamicType() == STANDARD_TYPE (Geom_Circle))
+ {
+ theCircle = Handle(Geom_Circle)::DownCast(aTrimmedCurve->BasisCurve())->Circ();
+ }
+ }
+ else
+ {
+ // Compute a circle from 3 points on "aCurve"
+ gp_Pnt aP1, aP2;
+ aSurf1.D0 (aFirstU, aMidV, aP1);
+ aSurf1.D0 (aLastU, aMidV, aP2);
+ GC_MakeCircle aMkCirc (aP1, aCurPos, aP2);
+ theCircle = aMkCirc.Value()->Circ();
}
- }
- else
- {
- // Compute a circle from 3 points on "aCurve"
- gp_Pnt aP1, aP2;
- aSurf1.D0 (aFirstU, aMidV, aP1);
- aSurf1.D0 (aLastU, aMidV, aP2);
- GC_MakeCircle aMkCirc (aP1, aCurPos, aP2);
- theCircle = aMkCirc.Value()->Circ();
- }
- aFirstPoint = ElCLib::Value (aFirstU, theCircle);
- aLastPoint = ElCLib::Value (aLastU, theCircle);
+ aFirstPoint = ElCLib::Value (aFirstU, theCircle);
+ aLastPoint = ElCLib::Value (aLastU, theCircle);
+ }
+ break;
}
- }
- else // TopAbs_EDGE | TopAbs_WIRE
- {
- TopoDS_Edge anEdge;
- if (theShape.ShapeType() == TopAbs_WIRE)
+ case TopAbs_WIRE:
{
+ TopoDS_Edge anEdge;
TopExp_Explorer anIt (theShape, TopAbs_EDGE);
if (anIt.More())
{
anEdge = TopoDS::Edge (anIt.Current());
}
+ if (!AIS_Dimension::CircleFromEdge (anEdge, theCircle, aFirstPoint, aLastPoint))
+ {
+ return Standard_False;
+ }
+ break;
}
- else if (theShape.ShapeType() == TopAbs_EDGE)
- {
- anEdge = TopoDS::Edge (theShape);
- }
- else // Unexpected type of shape
+ case TopAbs_EDGE:
{
- return Standard_False;
+ TopoDS_Edge anEdge = TopoDS::Edge (theShape);
+ if (!AIS_Dimension::CircleFromEdge (anEdge, theCircle, aFirstPoint, aLastPoint))
+ {
+ return Standard_False;
+ }
+ break;
}
-
- BRepAdaptor_Curve anAdaptedCurve (anEdge);
- if (!anAdaptedCurve.GetType() == GeomAbs_Circle)
- {
+ case TopAbs_COMPOUND:
+ case TopAbs_COMPSOLID:
+ case TopAbs_SOLID:
+ case TopAbs_SHELL:
+ case TopAbs_VERTEX:
+ case TopAbs_SHAPE:
+ default:
return Standard_False;
- }
-
- theCircle = anAdaptedCurve.Circle();
- aFirstPoint = anAdaptedCurve.Value (anAdaptedCurve.FirstParameter());
- aLastPoint = anAdaptedCurve.Value (anAdaptedCurve.LastParameter());
}
theIsClosed = aFirstPoint.IsEqual (aLastPoint, Precision::Confusion());
Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect();
- gp_Lin aDimensionLine = gce_MakeLin (aLineBegPoint, aLineEndPoint);
-
// For extensions we need to know arrow size, text size and extension size: get it from aspect
Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length();
projects / occt.git / blobdiff