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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
> Hi Maohai, > > From some of your questions, I gather that you are using > Java2D (DisplayImplJ2D) rather than Java3D (DisplayImplJ3D). > Bill, that is correct. > I recommend Java3D, even for purely 2-D graphics. First a very basic question, is it possible to use Java3D but not have the effect of 3D? that is to say, to make the display flat just like the 2D, with a simple square box with every thing projected on the X-Y plane without foreshortening or the scales and their labels all drawn with an angle w.r.t the XY plane. I can't find a simple "switch" (something like "GraphicsModeControlJ3D.setMode2D(true)" ) nor could I find any answer in the archive perhaps due to not having the right key words. People looking for a 2D graph just want something flat. > It has > better performance for user interactions, including 2-D > panning and zooming. Much better in some cases. Furthermore, > Java3D's texture mapping provides a reasonable way to render > images remapped to non-rectangles, where Java2D does not > (DisplayImplJ2D emulates texture mapping as lots of little > triangles, with miserable performance). > > Good 3-D graphics are becoming so cheap and ubiquitous > that there is really no reason not to use them, even for > 2-D graphics. This is especially true for projects like > yours aimed at 2007 and beyond. > I will keep this in mind. So far my priorities are this in descending order: 1) 2D x-y line plots 2) 2D contour plot of maps 3) 3D rendation of a 2D map 4) data of a function in 3D domain. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
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