Thank you Chris for your reply, The object is a class field containing 3D data with connections of type tetrahedra. The domain consists of a computational volume from which a turbine blade was extracted (logical substraction operation). In this way, a part of the boundary surface that confines the domain represents the surface of the blade. You can see the domain, the blade and the pressure isolines at http://www.fm.vok.lth.se/Staff/Priv/DM/water-turbine.html Although the blade seems to be opaque in the first two images, in the last one you can see the isolines from both sides of the blade. I tried in many different ways to elude this problem but with no result. If you can see the picture and give me a hint to solve it, I will be gratefull.
Dragos On Wed, May 25, 2005 at 07:08:41AM -0400, Chris Pelkie wrote: > What is the object you are applying ShowBoundary to? If it is already > a polygon, ShowBoundary will give back only the outer 'lines' around > the edge, thus there is no surface, thus you'd see through the empty > space. If it is a volume, you get a polygonal surface which should be > opaque by default (adding Color/opacity would be useful if you wanted > to make it partially transparent, but it sounds like you don't). Point > is, you don't need to tell DX to perform an operation to generate > polygons if the input is already polygonal; it just renders them for > you. > ____________________________ > Chris Pelkie > Vice President (607) 257-8335 > Conceptual Reality Presentations, Inc. > 30 West Meadow Drive > Ithaca, NY 14850 > On May 24, 2005, at 16:49, Dragos MOROIANU wrote: > > > > Hi everybody, > > I need a litle help with my problem. I have a domain containing a > > blade. I > > show this blade using the "ShowBoundary" control. On this surface I > > apply the > > "Isocontour" control to get some isolines. Of course I get them but > > the > > problem is that I see the isolines on both sides, as if the blade > > is > > transparent. > > > > > > Input->ShowBoundary->Isocontour->| > > | |----------- > > V V > > Collect > > | > > V > > Image > > > > How can I make the boundaries to be opaque for the isolines that > > are on them? > > I tried to add a "Collor" control between "ShowBoundary" and > > "Collect" but > > with no improvement, although I set the opacity to 1.0 > > > > Thank you! > > > > Dragos > > > > --
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