Interesting... it looks to me like the XSICollection is changing the object type as a result of dumping it into the collection:
SelectObj("cube", null, true);
obj = Selection(0);
// Get a pointer to the object Facets
oFacets = obj.ActivePrimitive.Geometry.Facets;
LogMessage(oFacets(0))
LogMessage(oFacets(1).type)
// Dump the objects into an XSICollection
XSIColl = new ActiveXObject('XSI.Collection')
XSIColl.AddItems(oFacets)
LogMessage(XSIColl(0))
LogMessage(XSIColl(1).type)
This looks like a job for Andrew!
-Brad
> -------Original Message-------
> Stephen,
> Thanks, this worked perfecly for my oFilter.Subset input, however I am
> now more confused than ever. I have two pieces of code that are supposed
> to select all the edges of a particular facet, one works, one doesnt,
> they are:
>
>
> //1.DOES NOT WORK
> SelectObj("cube", null, true);
> var oColl = XSIFactory.CreateActiveXObject("XSI.Collection")
> oColl.AddItems(Selection(0).ActivePrimitive.Geometry.Facets);
> SelectGeometryComponents(oColl(0).Edges);
>
> //2.WORKS
> SelectObj("cube", null, true);
> var oSelList = Selection(0).ActivePrimitive.Geometry.Facets;
> SelectGeometryComponents(oSelList(1).Edges);
>
>
>
> If Selection(0).ActivePrimitive.Geometry.Facets is a facet collection,
> how does it differ from an XSI Collection? In this case it would seem
> that the XSI Collection is being passed to SelectGeometryComponents in
> example 1 and a Facet Collection is being sent to
> SelectGeometryComponents in example 2. Why would the XSI Collection work
> in the case of filter.subset but not here?
>
>
> --
>
> Joey Ponthieux
> NCI Information Systems Inc.
> NASA Langley Research Center
> ____________________________________________________________
> Opinions stated here-in are strictly those of the author and
> do not represent the opinions of NASA or any other party.
>
>
>
> Stephen Blair wrote:
> >
> > Hi Joey
> >
> > Instead of messing about with the selection, just get all the edges into
> > a collection and then filter the collection.
> >
> > Here's an example, but with polygons and the Quad filter:
> >
> > var oCone = ActiveSceneRoot.AddGeometry("Cone","MeshSurface");
> > var oPolygons = oCone.ActivePrimitive.Geometry.Polygons;
> >
> > var oColl = XSIFactory.CreateActiveXObject("XSI.Collection");
> > oColl.AddItems(oPolygons);
> > LogMessage( oColl.Count );
> >
> > var oFilter = Application.Filters("Quad");
> > var oQuads = oFilter.Subset( oColl );
> > LogMessage( oQuads.Count );
> >
> > Also
> >
> > Application.Selection is a Selection object
> > Selection(0).ActivePrimitive.Geometry.Segments is a SegmentCollection
> >
> > that's why you get the error
> >
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