[vtkusers] Single proxy class for a vector of vtkUnstructuredGrids

[Bill Lorensen]

Take a look at vtkAppendFilter.

On Mon, Jun 11, 2012 at 4:37 AM, Andrew Parker
<andy.john.parker at googlemail.com> wrote:
> Hi,
>
> I have several vtkUnstructuredGrid(s) that I read in from disk, they are
> separate components of a large model.  For various reasons I'd like to be
> able to keep them separate but, for the majority of my program proxy them
> all by one interface as one single "glued" object of that type, in this case
> a single vtkUnstructuredGrid.  For example, if I have a file that I read in
> for a nut, and a second file for a bolt, I would like them to remain
> separate, but pass around an object that allowed me to do, say GetPoints(),
> on a single vtkUnstructuredGrid object that gave me all the points in both
> the nut and bolt meshes.  Actually, I would like to in a sense have the
> whole interface for vtkUnstructuredGrid and anything beneath it, but behind
> hold a vector of vtkUnstructuredGrids, or indeed another type, vtkpolydata
> for example.
>
> Is this possible?  I do not think the vtkMultiBlock... is what I want.
>  Alternatively, if this is not possible, is there anything that will allow
> me to "add" using operator+ for example the nut and bolt together to get a
> single mesh back.  This is not really what I want but would suffice.
>
> I would much prefer the former, but the latter is fine if the former is not
> possible.
>
> Any help much appreciated.  Again, primary importance is one interface that
> under the hood is a vector of said types, where that type need not be a
> vtkunstructuredGrid, but that would be ideal initially....
>
> Cheers again,
> Andy
>
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