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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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 Doug, hi all, > I'd like to have a set of pre-defined color tables (e.g. rainbow, > reverse rainbow, earth...) from which a user can choose. Has anybody > done anything like this with VisAD? > I've got a few color tables I've put together in "all these years" working with VisAD. > I thought about taking a file-based approach where a ColorTable class > could open/save color tables from/to files with some human > readable/editable format. > If you mean "ascii" when your say "human readable/editable format", then I've got some code that does that. I defined the table like: 17 // table length Urban, Forest, Wheat, Maize,... // String[] for class names; not always used 1.0 0.0 0.0 0.8 0.4 0.0 0.6 0.2 0.0 0.6 0.4 0.0 // RGB values 0.6 0.0 0.0 0.8 0.6 0.0 1.0 1.0 0.0 ... > On the other hand, I'd rather avoid the baggage of more files to carry > around. I thought of a ColorTable class with static ColorTables (akin to > RealType.Longitude). I could then extend ColorTable to make MyColorTable > which could define some more static ColorTables with or without using > files. > As said before, I've got a class, but I haven't finished work on that, and there are tables not implemented yet. Furthermore, the code that reads the file described above is not included. > Any thoughts? > > Are there other "standard" color tables in the vis community that could > be adapted to VisAD? > I can only think of tables with reduced length (so one clearly sees a few levels), which I find very useful. Another pretty table is the one used for altitude, which I also have and would be glad to donate. Feel free to ask for the code. Cheers, Ugo
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