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<div class="moz-cite-prefix">I actually don't know how to remove
widgets (for example vtkBoxWidget) properly. After<br>
vtkBoxWidget *boxWidget = vtkBoxWidget::New();<br>
boxWidget->SetInteractor(iren);<br>
Shall I do <br>
boxWidget->SetInteractor(NULL);<br>
boxWidget->UnRegister(iren);<br>
boxWidget->Delete();<br>
to remove it? I see boxWidget is still alive because its
ReferenceCount is 1 not 0.<br>
<br>
I don't mind moving up to use vtkSmartPointer if that can solve my
problem. <br>
<br>
Weiguang<br>
<br>
On 26/02/2016 11:00 AM, Thales Luis Rodrigues Sabino wrote:<br>
</div>
<blockquote
cite="mid:CAHvrNaenfYpDiESjNyxFed0QgzofJ5+V9xBC8F+txrSc1euGig@mail.gmail.com"
type="cite">
<div dir="ltr">The way I'm doing things is just to remove the
actors from the renderer.
<div>Since I'm sure my program doesn't hold any other reference,
I do trust that the vtkSmartPointer is doing its job.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Feb 25, 2016 at 5:51 PM,
Weiguang guan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:guanw@rhpcs.mcmaster.ca" target="_blank">guanw@rhpcs.mcmaster.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
In my program (C++), a user can create/remove an object
(cone, cylinder, ...) or a widget (vtkBoxWidget, ...).
What's the right way of doing so without causing memory
leaking or trashing?<br>
<br>
In "Examples/Tutorial/Step6/Cxx/Cone6.cxx", I see the last
section of code doing clean-up at the end as follows:<br>
170 cone->Delete();<br>
171 coneMapper->Delete();<br>
172 coneActor->Delete();<br>
173 callback->Delete();<br>
174 boxWidget->Delete();<br>
175 ren1->Delete();<br>
176 renWin->Delete();<br>
177 iren->Delete();<br>
178 style->Delete();<br>
when it exits.<br>
<br>
Lines 170-172 won't delete coneActor because ren1 still use
it 99 ren1->AddActor( coneActor ). This example works
fine as it delete ren1, renWin, and iren as well at exit
point. Shall I do<br>
ren1-RemoveActor(coneActor) in addtion to
coneActor->Delete()? I just want to "undo" the creation
as if cone had never been created.<br>
<br>
How about the widget boxWidget? It may be trickier. In
addition to boxWidget->Delete(), do I need to do
something like<br>
boxWidget->SetInteractor(NULL);<br>
boxWidget->UnRegister(iren);<br>
?<br>
<br>
Weiguang<br>
<br>
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-- <br>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>Thales Luis Rodrigues Sabino</div>
<div><br>
</div>
<div>PhD Student at <a moz-do-not-send="true"
href="http://www.ufjf.br/pgmc/" target="_blank">PGMC-UFJF</a></div>
<div><a moz-do-not-send="true"
href="http://lattes.cnpq.br/0601030410417146"
target="_blank">Lattes</a> | <a
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href="https://br.linkedin.com/in/tluisrs"
target="_blank">LinkedIn</a> | <a
moz-do-not-send="true"
href="https://www.researchgate.net/profile/Thales_Luis_Sabino"
target="_blank">ResearchGate</a></div>
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</blockquote>
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