how to add a set of images?

[Charles Law]

There are multiple ways you can do this.  In the nightly 
release,  vtkDataObjects have ShallowCopy and DeepCopy.

The following should work.
See the changes below.

Charles.

At 12:56 PM 4/21/00 -0400, Alexandre Guimond wrote:
>Hi.  I wan't to add a set of images together and I can't figure out
>the way to do this.  Hopefully one of you can help :)
>
>In the following code, all the images file prefix are in $series.
>
>==
>vtkImageMathematics add
>add SetOperationToAdd
>
>vtkImageReader reader
>reader SetFilePrefix [lindex $series 0]

vtkImageData last
reader Update
last ShallowCopy [reader GetOutput]

>foreach i [lrange $series 1 end] {

       add SetInput1 last

>     reader SetFilePrefix $i;
>     add SetInput2 [reader GetOutput]

        add Update
        last ShallowCopy [add GetOutput]


>}
>
>vtkImageViewer viewer

    viewer SetInput last

>viewer Render
>==
>
>I guess the problem has to do with the implicit execution stuff.
>That's why I put a couple of Update calls in there.  It doesn't help
>in any way though.
>
>thx for any info.
>
>ps: Is there an archive to this mailing list?
>--
>ag
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