The cpt-city website has a large collection of over 4,000 color tables (download of over 4,000 color tables). Unfortunately for us (i.e., me), they are all in the .cpt format used in GMT. Here’s a routine to read a .cpt file and return it as a 256 by 3 color table array:
IDL> rgb = vis_cpt2ct('gmt/GMT_copper.cpt')
IDL> help, rgb
RGB BYTE = Array[256, 3]
IDL> tvlct, rgb
Now I need a catalog that I can scan through to find a color table.
Modern IDL offers IDL programmers one place to look for explanation, techniques, and reference material, for beginners and advanced users alike.
"... But I've always wanted a thorough, concise, up-to-date overview of the the IDL language and its vast capabilities. This is exactly what Mike's book provides in 464 very informative pages... Highly recommended!"
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I'm a software developer focusing on high-performance computing and visualization in scientific programming. I work mostly in IDL, but occasionally use C, CUDA, and Python.
I currently work for the National Center for Atmospheric Research (NCAR) at the Mauna Loa Solar Observatory. Previously, I worked for Tech-X Corporation, where I was the main developer for GPULib, a library of IDL bindings for GPU accelerated computation routines.
I am the creator and main developer for the open source projects IDLdoc, mgunit, and rIDL.
Contact me at Mastodon or via email at mgalloy at gmail dot com. For more details about me, see my CV/resume.
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GPULib enables IDL developers to access the high-performance capabilities of modern NVIDIA graphics cards without knowledge of CUDA programming.
TaskDL is a task-farming solution for IDL designed for problems with loosely-coupled, parallel applications where no communication between nodes of a cluster is required.
mpiDL is a library of IDL bindings for Message Passing Interface (MPI) used for tightly-coupled parallel applications.
The Remote Data Toolkit is a library of IDL routines allowing for easy access to various scientific data in formats such as OPeNDAP, HDF 5, and netCDF.
Modern IDL offers IDL programmers one place to look, for beginners and advanced users alike. This book also contains: a thorough tutorial on the core topics of IDL; a comprehensive introduction to the object graphics system; common problems and gotchas with many examples; advanced topics not normally found are discussed throughout the book: regular expressions, object graphics, advanced widget programming, performance, object-oriented programming, etc.
IDLdoc is an open source utility for generating documentation from IDL source code and specially formatted comments.
mgunit is an open source unit testing framework for IDL.
rIDL is an open source IDL command line replacement.
mglib is an open source library of IDL routines in areas of visualization, application development, command line utilities, analysis, data access, etc.
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January 5th, 2010 at 11:22 am
[…] is a catalog of the color tables from cpt-city that can be read into IDL with VIS_CPT2CT that I wrote about previously. No Comments […]