2011/6/11 Partha Pratim Biswas <partha...@gmail.com>
> hii guys,
>
Hi Partha,
>
> I want to find the points of intersection of a line and a solid
>
> my procedure are as follows..
>
> 1. i have found out the total faces available in solid(TopoDS_Solid)
>
> def Find_face(self,shape):
> Ex_face=TopExp_Explorer()
> Ex_face.Init(shape,TopAbs_FACE)
> i_face=0
> while Ex_face.More():
> i_face=i_face+1
> print("Face : %i Found" %(i_face))
> DO_SOMETHING(Ex_face.Current())
> Ex_face.Next()
> return
>
Rather use:
from OCC.Utils.Topology import *
t = Topo(shape)
for f in t.faces():
.. whatever
>
> 2. i have defined a line using the following code and finding out the
> handle
>
> p1=gp_Pnt(-10,-10,-10)
> p2=gp_Pnt(200,200,200)
> L=GC_MakeSegment(p1,p2).Value()
>
> 3. i have to find the intersection point between line and face using
>
> inter=GeomAPI_IntCS(L,handle_Geom_Surface)
>
> my basic problem is to convert every face to Geom_Surface or
> Handle_Geom_surface ....
>
> how do i do it ......of there is a better method for finding SOLID-LINE
> intersection
>
Have a look at the IntCurvesFace module and IntCurvesFace_Intersector/
IntCurvesFace_ShapeIntersector classes.
>
>
> pls help.
> partha
>
>
Regards,
Thomas
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