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called New() on. That seems to work in most cases (G and
MinimumSpanningTreeFilter) in the above example. However, in some cases when
I call Delete I get a segfault and a warning from vtkDebugLeaks about
deleting an unknown object (as with MinimumSpanningTree in the above
example).

Am I misunderstanding when/how to delete these things?

Thanks,

David

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I'm having trouble cleaning up memory leaks in some code. Here is an ex=
ample:<br><br>#include &lt;vtkMutableUndirectedGraph.h&gt;<br>#include &lt;=
vtkBoostPrimMinimumSpanningTree.h&gt;<br>#include &lt;vtkTree.h&gt;<br><br>
#include &lt;iostream&gt;<br>#include &lt;string&gt;<br><br>int main(int ar=
gc, char *argv[])<br>{<br>=A0 vtkMutableUndirectedGraph* G =3D vtkMutableUn=
directedGraph::New();<br>=A0=A0=A0 <br>=A0=A0=A0 //create 3 vertices<br>=A0=
 vtkIdType V1 =3D G-&gt;AddVertex();<br>
=A0=A0=A0 <br>=A0 vtkBoostPrimMinimumSpanningTree* MinimumSpanningTreeFilte=
r =3D vtkBoostPrimMinimumSpanningTree::New();<br>=A0 MinimumSpanningTreeFil=
ter-&gt;SetOriginVertex(V1);<br>=A0 MinimumSpanningTreeFilter-&gt;SetInput(=
G);<br>=A0=A0=A0 <br>
=A0 vtkTree* MinimumSpanningTree =3D vtkTree::New();<br>=A0 MinimumSpanning=
Tree =3D MinimumSpanningTreeFilter-&gt;GetOutput();<br>=A0=A0=A0 <br>=A0 //=
cleanup<br>=A0=A0=A0 //G-&gt;Delete(); //works ok<br>=A0=A0=A0 //MinimumSpa=
nningTreeFilter-&gt;Delete(); //works ok<br>
=A0 MinimumSpanningTree-&gt;Delete(); //deleting unknown object: vtkDataObj=
ect - segfault<br>=A0=A0=A0 <br>=A0 return 0;<br>}<br><br>From what I under=
stand, you should call Delete() on everything that you called New() on. Tha=
t seems to work in most cases (G and MinimumSpanningTreeFilter) in the abov=
e example. However, in some cases when I call Delete I get a segfault and a=
 warning from vtkDebugLeaks about deleting an unknown object (as with Minim=
umSpanningTree in the above example).<br>
<br>Am I misunderstanding when/how to delete these things?<br><br clear=3D"=
all">Thanks,<br><br>David<br>

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