RE: So why won't this conditional work?

Date : Wed, 19 Apr 2006 17:46:56 +0100
To : <XSI(at)Softimage.COM>
From : "kim aldis" <kim(at)cg-soup.com>
Subject : RE: So why won't this conditional work?
Sorry, I'm misreading the mail. 

> -----Original Message-----
> From: owner-xsi(at)Softimage.COM 
> [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Ian Stewart
> Sent: 19-April-2006 17:02
> To: XSI(at)Softimage.COM
> Subject: RE: So why won't this conditional work?
> 
> I'm not sure what you are asking, Kim... 
> The "This works" is the solution to his problem; I am trying 
> to avoid the fact that it is comparing objects, by comparing 
> the vertex index instead...
> 
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM 
> [mailto:owner-xsi(at)Softimage.COM]On Behalf Of kim aldis Posted 
> At: April 19, 2006 11:40 AM Posted To: xsi
> Conversation: So why won't this conditional work?
> Subject: RE: So why won't this conditional work?
> 
> 
> I'm sure you're right but isn't Index a property, in which 
> case it should be returning a number, not an object? Or is 
> this just another peversity of OM scripting? 
> 
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM
> > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Ian Stewart
> > Sent: 19-April-2006 16:19
> > To: XSI(at)Softimage.COM
> > Subject: RE: So why won't this conditional work?
> > 
> > Someone can correct me if I am wrong, but I believe the 
> conditionals 
> > are comparing the mini sdk object that _wraps_ the vertex 
> in question, 
> > and hence are different.
> > 
> > This works:
> > 	if( oPolyVerts(2).Index == oEdgeVerts(1).Index ){	
> > 	//would this be a bad test even if the conditional worked
> > 
> > Ian Stewart
> > XSI Modeling, Texturing and Stuff
> > 
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM
> > [mailto:owner-xsi(at)Softimage.COM]On Behalf Of Joey Ponthieux 
> Posted At: 
> > April 19, 2006 10:37 AM Posted To: xsi
> > Conversation: So why won't this conditional work?
> > Subject: So why won't this conditional work?
> > 
> > 
> > 
> > 
> > var oCube = ActiveSceneRoot.AddGeometry( "Cube", 
> "MeshSurface" ); var 
> > oGeometry = oCube.ActivePrimitive.Geometry; var oEdge = 
> > oGeometry.Polygons(0).Edges(1); var oPolyNeighbors = 
> > oEdge.NeighborPolygons(1);
> > var oPolyVerts = oPolyNeighbors(0).NeighborVertices(1);   
> > var oEdgeVerts = oEdge.NeighborVertices(1);
> > 
> > var testA = oPolyVerts(2).SubComponent; var testB = 
> > oEdgeVerts(1).SubComponent;
> > 
> > //What they look like
> > LogMessage (oPolyVerts(2));
> > LogMessage (oEdgeVerts(1));
> > LogMessage (testA);
> > LogMessage (testB);
> > 
> > //test it even further, both select the same exact point
> > SelectGeometryComponents(oPolyVerts(2));	//"cube.pnt[3]"
> > SelectGeometryComponents(oEdgeVerts(1));	//"cube.pnt[3]"
> > 
> > //but these conditionals fail
> > if( oPolyVerts(2) == oEdgeVerts(1) ){		//would this be 
> > a bad test even
> > if the conditional worked
> > 	LogMessage("hello");			//I expext it 
> > is testing if Vertex == Vertex
> > 
> > }else if (eval(oPolyVerts(2)) == eval(oEdgeVerts(1)) ){	
> > //same results
> > as above, 
> > 	LogMessage("world")				//still 
> > no joy on the condition
> > 
> > }else if (testA == testB ){		//this would be a 
> > better test, but still
> > why does this fail
> > 	LogMessage("foo")
> > 
> > }else{ 
> > 	LogMessage("Why won't this work?")
> > }	
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > --
> > 
> > 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.
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