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Ah of course, a mask.<br>
<br>
Thanks that's perfect.<br>
Cheers<br>
A.<br>
<br>
On 28.10.2010 15:28, David Doria wrote:
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cite="mid:AANLkTi=vO894nTCAWTWn2St9WnBVQ6whFCzshzHZY3_t@mail.gmail.com"
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<div class="gmail_quote">On Thu, Oct 28, 2010 at 5:56 AM, Alex
Southern <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:mrapsouthern@gmail.com">mrapsouthern@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">Hi,<br>
<br>
ImageData must be rectangular, but I want certain points in
the imageData to be transparent. I have seen the SetOpacity
setting, but that affects all the ImageData.<br>
<br>
Can anyone tell me what my options are for this?<br>
<br>
Thanks<br>
A<br>
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<div>This should do the trick:</div>
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<a moz-do-not-send="true"
href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/Transparency">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Images/Transparency</a><br
clear="all">
<br>
<div>David </div>
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