<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi,</div><div><br></div><div>If I understand correctly, you are trying to easily retrieve a vtkActor instance based on some key.</div><div>I usually use a map where the key is a unique ID, and the value the actual vtkActor. </div><div>That way I can retrieve quickly the actor associated with a key. However, this has the inconvenient</div><div>of maintaining that map to make sure you remove actors which are deleted, and add newly created</div><div>actors. </div><div><br></div><div>Hope this helps,</div><div><br></div><div>Mathieu</div><div><br></div><div><div>____________________ <br>Mathieu Coursolle, M.Ing.<span class="Apple-tab-span" style="white-space: pre; "> </span><br>Rogue Research Inc. </div><div><a href="http://www.rogue-research.com/">www.rogue-research.com</a></div></div><br><div><div>On 6-Mar-09, at 11:02 AM, John Eke wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <div bgcolor="#ffffff" text="#000000"> <font size="-1"><font face="Verdana">What I am trying to do is add a string Id as a private member to a vtkImageActor. I have a scenario where I am inserting multiple vtkImageActors into a renderer... and I want to selectively enable and disable them. The only way I can forsee doing that is if each image actor had an ID. That way I can iterate through the actors, find the one with the ID I am looking for, then enable it.<br> <br> Is there a better way to do this? If not how can I add the ID field to an image actor?<br> <br> I hope this clears things up<br> <br> - John<br> </font></font><br> Mathieu Malaterre wrote: <blockquote cite="mid:bf0c3b3f0903060747wb1720dfv8e34df7ca4e93d11@mail.gmail.com" type="cite"> <pre wrap="">On Fri, Mar 6, 2009 at 4:39 PM, John Eke <a class="moz-txt-link-rfc2396E" href="mailto:johne@annidis.com"><johne@annidis.com></a> wrote:
</pre> <blockquote type="cite"> <pre wrap="">Hi Guys,
Whats the easiest way to get a vtkImageActor with an ID field? I tried
inheritance, didn't work (maybe I didn't do it right). I tried creating a
replica of vtkImageActor, and renaming it to something else. But with this,
the New() method returns NULL
</pre> </blockquote> <pre wrap=""><!---->I did not quite followed what you are trying to do, but you understand
that vtkImageActor::New() returns a vtkOpenGLImageActor ?
2cts
</pre> </blockquote> <br> <pre class="moz-signature" cols="72">--
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