[vtk-developers] InfoVis graph visualization question: vtkGraphLayoutView with a "Simple 2D" layout strategy

[David Cole]

Ping...

Anybody know? Just two little itty bitty questions.


-----Original Message-----
From: David Cole <dlrdave at aol.com>
To: vtk-developers <vtk-developers at vtk.org>; jeff.baumes
<jeff.baumes at kitware.com>
Sent: Thu, Jul 31, 2014 2:20 pm
Subject: InfoVis graph visualization question: vtkGraphLayoutView with
a "Simple 2D" layout strategy


This VTK wiki example:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/InfoVis/XGMLReader

Yields this "different rendering" test failure on my dashboard machine:
http://open.cdash.org/testDetails.php?test=271695203&build=3430870

The graph structure looks the same, and the visual is roughly
equivalent, but the expected image clearly shows a perfectly square
glyph at each graph node. In my test image, the graph nodes look like
they vary from circle to square to polygons in between...

What determines the shape of the node glyph in a vtkGraphLayoutView
with a "Simple 2D" layout strategy? And would the shape difference
account entirely for the slight offset and angle between expected image
and test image...?


Thanks,
David C.