IDL COLOR TABLES UPDATE

IDL> loadct, 22, file=file_which(вЂbrewer.tblвЂ™) No too much of an issue when loading very few or a lot of colors, but may bother some users loading 20-40 colors? You expect to have a clear neutral middle color (even though not in the table itself), but in the RdBu for example the 121-127 indices seem to be on the вЂњblue sideвЂќ. The diverging color tables seem a little bit off-center: I have a little concern about the interpolation to 256 colors you used to produce the tbl file. I have thought using those color tables since I saw the Brewer article in EOS, but never implemented more than one in my IDL codes. I updated the color tables to fix problems with the qualitative color tables and added new routines to access HereвЂ™s a list of all the tables:ДҐ Responses to вЂњUpdated Brewer color tablesвЂќ The order of the tables (sequential first, then the diverging, and then ending with all the variations of the qualitative) was also changed to match the Brewer order instead of the previous alphabetical listing. In total, there are 18 sequential, 9 diverging, and 58 qualitative color tables (of 8 different styles). For example, вЂњPastel1вЂќ has versions with 3, 4, 5, 6, 7, 8, or 9 colors. The qualitative color tables each have multiple versions included, depending on how many colors are needed. These color tables are for labeling, so they contain 3 to 12 colors instead of a full set of 256 colors.

IDL COLOR TABLES UPDATE

The update fixes the qualitative color tables. The () includes `MG_LOADCT` and `MG_XLOADCT`, which are wrappers around `LOADCT` and `XLOADCT` that use the Brewer color tables instead of the default color tables. I have updated the Brewer color tables that I () last fall.

Idl color tables