<meta http-equiv="content-type" content="text/html; charset=utf-8"><div class="gmail_quote">On Thu, Oct 28, 2010 at 5:56 AM, Alex Southern <span dir="ltr"><<a href="mailto:mrapsouthern@gmail.com">mrapsouthern@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;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></blockquote><div><br></div><div>This should do the trick:</div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a 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></div>