If you check the COMPOUND it is likely to contain one or more shells. If
it only contains faces, you will have to construct SHELL(s) from these
first, then SOLID(s).
- Frank
On 08/12/2011 5:43 PM, Jayesh Salvi wrote:
Hi Frank,
That sounds right, but sewing tools doesn't exactly create
TopoDS_SHELL. From the documentation it can create a Shape object or
as in the code I've written (derived from STLReader code), it can
create a Compound. I don't know how to create Shell from these objects.
--
Jayesh
On Thu, Dec 8, 2011 at 10:23 PM, Frank Conradie <fr...@qfin.net
<mailto:fr...@qfin.net>> wrote:
Hi Jayesh
If I remember correctly, the sewing tool only creates shells, and
you have to manually "wrap" them in solids. Here is some code I've
used to do this in the past:
# Note that shells is a Python list of shell(s), and it is assumed
that if there
# are more than 1 shells, the 1st is the outer shell and the rest
are inner shells.
def MakeSolidFromShells(shells):
# Create new empty solid
ms = BRepBuilderAPI_MakeSolid()
# Add outer shell to new solid
ms.Add(tds_.shell(shells[0]))
# Add inner shells (holes)
for innerSh in shells[1:]:
ms.Add(tds_.shell(innerSh))
so = ms.Solid()
return so
- Frank
On 08/12/2011 3:35 AM, Jayesh Salvi wrote:
Thomas,
I guess the way to do "cast" in pythonOCC is as follows:
unionop = BRepAlgoAPI_Fuse(TopoDS().solid(aShape), box)
[as seen in the routine ShapeToTopology that you have written
somewhere]
But that doesn't help either. I get.
RuntimeError: Standard_TypeMismatch
TopoDS::Solid
Did you mean any other way of casting to TopoDS_SOLID?
--
Jayesh
On Thu, Dec 8, 2011 at 4:30 PM, Thomas Paviot <tpav...@gmail.com
<mailto:tpav...@gmail.com>> wrote:
Did you try to cast the compound to a TopoDS-Solid?
Thomas
- sent from my Android phone
Le 8 déc. 2011, 10:07 AM, "Jayesh Salvi"
<jayeshsa...@gmail.com <mailto:jayeshsa...@gmail.com>> a
écrit :
After more investigation of why NotDone is thrown, I have
found some info.
The Fuse operation has ErrorStatus() function on it. I found
that it returns the error code 110.
Then I looked into OCC code to find out what 110 stands for.
I think these two locations in code can throw that error [1
<https://github.com/tpaviot/oce/blob/master/src/BRepAlgoAPI/BRepAlgoAPI_BooleanOperation.cxx#L315>]
and [2
<https://github.com/tpaviot/oce/blob/master/src/BRepAlgoAPI/BRepAlgoAPI_BooleanOperation.cxx#L390>]
The actual error code is 10. Further digging for it, I found
that there are two locations that throw that error code. [1
<https://github.com/tpaviot/oce/blob/master/src/BOP/BOP_ShellSolid.cxx#L145>]
and [2
<https://github.com/tpaviot/oce/blob/master/src/BOP/BOP_WireSolid.cxx#L90>]
Both are caused by issues with type of the shape that is
passed as arguments.
It looks like the code has problem if one shape is of type
TopAbs_SHELL and other is TopAbs_SOLID. In our case I tried
to find out the ShapeType's of the two shapes we pass. One
of them (box created by BRepPrimAPI_MakeBox) is TopAbs_SOLID
and the other (that we constructed by hand) is
TopAbs_COMPOUND. This confuses me because arg type checking
code has no condition that mentions COMPOUND shape type.
Any ideas are welcome.
--
Jayesh
On Thu, Dec 8, 2011 at 12:56 PM, Jayesh Salvi
<jayeshsa...@gmail.com <mailto:jayeshsa...@gmail.com>>
wrote: > > Hi, > > I tried ...
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