[vtkusers] RE: Quadratic triangle + linear edge - cell scalars incorrect (vtk 4.5)

[John Platt]

Hi Mathieu,

Hope the direct post is not too much of an intrusion but there appears
to be some problem with the list at the moment.

I tried your suggestion but it did not affect the output. To remove any
doubt on the scoping issue, I replaced 

   topology->InsertNextId( ptId++ );
   topology->InsertNextId( ptId );
by
   topology->InsertNextId( 6 );
   topology->InsertNextId( 7 );

but still no change.

As for the suitability of VC++6 for real development, OK, I admit that
ParaView does cause it to crash if you double click
ParaviewComplete.dsw. Perhaps I should send the report to MS next this
happens? - or maybe you just need a multiprocessor machine (I did get it
to build) :-).

Many thanks for your suggestions and continued help.

John.



-----Original Message-----
From: Mathieu Malaterre [mailto:mathieu.malaterre at kitware.com] 
Sent: 24 May 2004 20:50
To: John Platt
Cc: vtkusers at vtk.org
Subject: Re: Quadratic triangle + linear edge - cell scalars incorrect
(vtk 4.5)

John,

	This is the problem with using VC++6 for real development :)

	More seriously, VC++6 does not respect scoping for 'for', and
thus lead 
people to make errors. Could you change your code :

    for ( int ptId = 0; ptId < 6; ptId++ )

into

    int ptId;
    for ( ptId = 0; ptId < 6; ptId++ )

Only then you can later reuse ptId.

HTH
Mathieu


John Platt wrote:
> Hi Users,
> 
>  
> 
> When I add a linear edge to an unstructured grid consisting of a
single 
> quadratic triangle, the centre linear triangle of the triangulated 
> quadratic triangle and the edge have swapped cell scalars - see 
> attachment (triangle should be all red & edge blue).
> 
>  
> 
> When either of the cells is drawn in isolation there is no problem.
> 
>  
> 
> The cell scalars coming out of 
> vtkDataSetSurfaceFilter::UnstructuredGridExecute() appear OK.
> 
>  
> 
> Does anybody else have this problem? I have attached the c++ code just

> in case it is a fault on my part.
> 
>  
> 
> Many thanks for your help.
> 
>  
> 
> John.
> 
> 
>
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>