The blade thickness is around 1.0 If I switch to perspective camera, the problem remains. Thanks for the suggestions, I sent the net and data directly to you.
Dragos On Thu, May 26, 2005 at 07:44:34AM -0400, Chris Pelkie wrote: > Hmm, still a mystery. > How about substituting Band for Isosurface? Ideally, you would then get > solid colored bands demarking regions of data values instead of lines. > > Is this blade incredibly thin (like one tiny tetrahedron thick)? That > still doesn't tell me why the lines should do what they do, but I'm > just wondering if you are approaching the resolution limit of the > camera; that is if the difference between front and back drops below > the resolution of float (or double, can't remember what the camera uses > internally) at that distance from the lens. When you zoom in, this > apparent difference is larger and you may be crossing the threshold > back to something thick enough for camera to figure out which is front > and back. > > For yucks, try switching to perspective camera (Image:View Control > pull-down menu). > > How big is the data file? If emailable, I would be intrigued to take a > look at it with the net you are using, as well as this would test it on > completely different hardware (OS X and G5), unless one of the new > suggestions fixes things. (Warning: I'm out of the office for the next > 4 days). > > On May 25, 2005, at 3:56 PM, Dragos MOROIANU wrote: > > > > Ok, some light started to shine! Thanks for the suggestions! > > As you probably can see from > > http://www.fm.vok.lth.se/Staff/Priv/DM/water-turbine.html > > the problem still persists. The light that I mentioned was about > > the fact that > > I noticed with the connections. If the picture is small they start > > to mix > > front with back, but not as much as in the case with isolines. > > Anyway, when I > > zoom in, the the triangles start to be cristal clear. Following > > this, I have > > zoomed in also the picture with the isolines and the interferences > > dissapeared. > > Now my problem is what can I do to have nice isolines? > > I tested the net on two different machines, one with nvidia graphic > > card and > > another with i810 graphic card, and the result was the same. I run > > linux on > > both machines but one is debian woody with 2.4.26 kernel and second > > with > > slackware 10.0 with 2.6.10 kernel. > > The option that you mention for the Isosurface control, I did not > > set, to be > > onest I did not know there is such an option before. > > Can you give me other hint to what I can do, or how to present this > > picture in > > order to look nice? I tried to put an AutoColor directly after the > > ShowBoundary, and the result is what you see in the first picture. > > It is nice > > and is not mixing again the two surfaces but it is no longer as > > clear as it > > would be with the isolines. > > > > Thank you, > > Dragos > > > > > _______________________________ > Chris Pelkie > Scientific Visualization Producer > 622 Rhodes Hall, Cornell Theory Center > Ithaca, NY 14853 (607) 254-8794 > > --
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