title: Possible resolution error for vtk
body: <p>I'm trying to visualize the vtk data given here <a href="https://www.dropbox.com/sh/51kjftvdko3g6s8/wEe88Id9QN" rel="nofollow">https://www.dropbox.com/sh/51kjftvdko3g6s8/wEe88Id9QN</a>. I'm doing something wrong which probably is related to resolution. I was wondering if anyone runs this code and sends me the result. If that is more clear than the image I have, it's more likely to be related to graphics driver I  think. In that case, what may be the cause of this problem? The image my computer generates can be found at the dropbox link, too.</p>