<div>Sure enough, vtkQtTreeView::Update() was calling SetShowRootNode(false). If you put Update() before SetShowRootNode(true) in your code it should work. I also just pushed a fix to master that resolves this so the order should no longer matter.</div>
<div><br></div><div>Jeff</div><br><div class="gmail_quote">On Tue, Mar 15, 2011 at 7:29 PM, Nicolas Rannou <span dir="ltr"><<a href="mailto:Nicolas_Rannou@hms.harvard.edu" target="_blank">Nicolas_Rannou@hms.harvard.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>Hi Julien,</div><div><br></div><div> I tried:<div><br></div><div><div>this->m_treeTableView->AddRepresentationFromInput(tree);</div>
<div>this->m_treeTableView->SetShowRootNode(true);</div><div>this->m_treeTableView->Update();</div><div><br></div><div>but the root node is not visible in the vtkQtTreeView...</div><div><br></div><font color="#888888"><div>
Nicolas</div></font><div><div></div><div><div><br></div><div><div>On Mar 15, 2011, at 6:31 PM, Julien Finet wrote:</div><br><blockquote type="cite">Did you try vtkQtTreeView::SetShowRootNode(true) ? <div>Julien.<br>
<br><div class="gmail_quote">On Tue, Mar 15, 2011 at 6:28 PM, Nicolas Rannou <span dir="ltr"><<a href="mailto:nicolas_rannou@hms.harvard.edu" target="_blank">nicolas_rannou@hms.harvard.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0.8ex;border-left-width:1px;border-left-color:rgb(204, 204, 204);border-left-style:solid;padding-left:1ex">
<div text="#000000" bgcolor="#ffffff">
Hi Jeff,<br>
<br>
another thing we noticed is that the root vertex is not shown in the
vtkQtTreeView. Is there any reason for that or is it a bug?<br>
<br>
If "A" is the tree root vertex:<br>
<br>
vtkGraphLayoutView:<br>
<br>
A--->B--->C--->D<br>
| |<br>
| ->E<br>
->F<br>
<br>
vtkQtTreeView:<br>
<br>
B--->C--->D<br>
|<br>
->E<br>
F<br>
<br>
Thanks,<br><font color="#888888">
<br>
<br>
Nicolas</font><div><div></div><div><br>
<br>
On 03/14/2011 02:36 PM, Nicolas Rannou wrote:
<blockquote type="cite">
Thanks for the feedback Jeff,<br>
<br>
I added it in the bug tracker. (<a href="http://public.kitware.com/Bug/view.php?id=11969" target="_blank">http://public.kitware.com/Bug/view.php?id=11969</a>)<br>
<br>
I'll submit a patch for the vtkGraphLayoutView in the next days.<br>
<br>
Thanks,<br>
<br>
Nicolas<br>
<br>
On 03/14/2011 01:12 PM, Jeff Baumes wrote:
<blockquote type="cite">Glancing at your message again, it appears you are
also finding a bug in vtkQtTreeView where it interprets edge ids
as vertex ids. If you could add that to the VTK bug tracker, I
could hopefully take a look at it sometime soon. Getting rid of
edge selections in the graph layout view as I suggested would
work around this problem.
<div> <br>
<div class="gmail_quote">On Mon, Mar 14, 2011 at 1:07 PM, Jeff
Baumes <span dir="ltr"><<a href="mailto:jeff.baumes@kitware.com" target="_blank">jeff.baumes@kitware.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"> I do not know of a simple way to make
this difference in selections go away. The
vtkGraphLayoutView generates vertex + edge selections, and
vtkQtTreeView generates vertex-only selections. I believe
the best solution is to have vtkGraphLayoutView have an
option to not select edges, as you suggested. If you are
interested in adding that option, you can patch
vtkGraphLayoutView.cxx to add some checks in
ConvertSelection() based on a new boolean member variable
and submit it to us for inclusion in VTK, or you could
subclass vtkGraphLayoutView and reimplement
ConvertSelection() if you want to just get it working for
your own application.
<div> <br>
</div>
<div>Jeff<br>
<br>
<div class="gmail_quote">
<div>
<div>On Fri, Mar 11, 2011 at 4:41 PM,
Nicolas Rannou <span dir="ltr"><<a href="mailto:nicolas_rannou@hms.harvard.edu" target="_blank">nicolas_rannou@hms.harvard.edu</a>></span>
wrote:<br>
</div>
</div>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
<div>
<div>
<div text="#000000" bgcolor="#ffffff"> Hi all,<br>
<br>
I'm trying to connect a <small>vtkQtTree</small>
and a <small>vtkGraphLayout</small> but the
selection is not working as expected.<br>
<br>
When I select something in the <small>vtkGraphLayout</small>,
the selection can contain vertices and edges.<br>
When I select something in the <small>vtkQtTree</small>,
the selection only contains vertices.<br>
<br>
If I select edges + vertices in the <small>vtkGraphLayout</small>,
i.e. vertices: 1 and 4, edge:3, it highlights
<u>vertices</u> 1,3,4 in the <small>vtkQtTree</small>...<br>
<br>
Then I have 3 questions/issues:<br>
(see pseudo-code at the end of the email)<br>
<br>
#1: should I modify the structure of my <small>vtkTree</small>
(<small>Add specific arrays for
vertices/edges?</small>) so the <small>vtkQtTree</small>
handles properly selection of edges+vertices?<br>
<br>
#2: can I get my <small>vtkQtTree</small> to
return the edges? Or should I find the edges
after it returns the vertices (is there an
efficient way to do it?)?<br>
<br>
#3: is there a straight forward way to disable
edges selection in the <small>vtkGraphLayoutView</small>?
<small>(Something like: EdgesNotSelectable()?)</small><br>
<br>
<br>
Thanks,<br>
<br>
<br>
Nicolas<br>
<br>
<br>
// What I do<br>
<br>
I first create a graph and add some arrays
associated to the <u>vertices</u>. <br>
<small>
vtkSmartPointer<vtkMutableDirectedGraph>
graph =<br>
vtkSmartPointer<vtkMutableDirectedGraph>::New();<br>
vtkIdType a = graph->AddVertex();<br>
vtkIdType b = graph->AddChild(a);<br>
vtkIdType c = graph->AddChild(a);<br>
<br>
vtkSmartPointer<vtkStringArray>
cellType =<br>
vtkSmartPointer<vtkStringArray>::New();<br>
cellType->SetName("name");<br>
cellType->InsertValue(a, "TypeA");<br>
cellType->InsertValue(b, "TypeB");<br>
cellType->InsertValue(c, "TypeC");<br>
<br>
graph->GetVertexData()->AddArray(cellType);<br>
...<br>
</small><br>
I convert the graph to a <small>vtkTree</small>
and add this representation to the <small>vtkQtTree</small>
and to the <small>vtkGraphLayout</small>.<br>
<br>
I connect the views through <small>vtkAnnotations</small>
and <small>vtkEventQtSlotConnect</small>.<br>
<small> this->m_annotationLink =
vtkSmartPointer<vtkAnnotationLink>::New();<br>
this->m_treeGraphView->GetRepresentation()->SetAnnotationLink(this->m_annotationLink);<br>
this->m_treeTableView->GetRepresentation()->SetAnnotationLink(this->m_annotationLink);</small><br>
<br>
<small> this->m_connect =
vtkSmartPointer<vtkEventQtSlotConnect>::New();<br>
this->m_connect->Connect(this->m_treeTableView->GetRepresentation(),<br>
vtkCommand::SelectionChangedEvent,<br>
this, SLOT(selectionChanged(vtkObject*,
unsigned long, void*, void*)));<br>
this->m_connect->Connect(this->m_treeGraphView->GetRepresentation(),<br>
vtkCommand::SelectionChangedEvent,<br>
this, SLOT(selectionChanged(vtkObject*,
unsigned long, void*, void*)));</small><br>
<br>
<small>selectionChanged() only call update on
the 2 views</small><br>
</div>
<br>
</div>
</div>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Jeff Baumes, Ph.D.<br>
Technical Lead, Kitware Inc.<br>
(518) 881-4932<br>
</div>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Jeff Baumes, Ph.D.<br>
Technical Lead, Kitware Inc.<br>
(518) 881-4932<br>
</div>
</blockquote>
<br>
</blockquote>
<br>
</div></div></div>
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<br></blockquote></div><br></div>
</blockquote></div><br></div></div></div></div></div></blockquote></div><br><br clear="all"><br>-- <br>Jeff Baumes, Ph.D.<br>Technical Lead, Kitware Inc.<br>(518) 881-4932<br>