API documentation for visualization library

Michael Galloy

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top vis_xloadct

direct graphics

vis_xloadct [, file=string] [, /brewer] [, /gmt] [, /mpl] [, /gist] [, /chaco] [, /vis] [, _extra=keyword]

Load a color table by index using a GUI interface. This routine is directly analogous to XLOADCT, but with more color tables options.

The default color tables:

The Brewer color tables are split into three types: sequential, diverging, and qualitative. Sequential color tables are simple sequences from white to a given color. The diverging color tables have white in the middle of the color table and progress in each direction towards two different colors. The qualitative color tables contain only a few colors for labeling purposes. The qualitative color tables are expanded to take up the same space of the other color tables in the graphic below:

The GMT color tables:

The Yorick/Gist color tables:

The matplotlib color tables:


file in optional type=string default=colors.tbl

filename of color table file; this is present to make VIS_XLOADCT completely implement XLOADCT's interface, it would normally not be used

brewer in optional type=boolean

set to use the Brewer color tables

gmt in optional type=boolean

set to use the GMT color tables

mpl in optional type=boolean

set to use the matplotlib color tables

gist in optional type=boolean

set to use the Gist/Yorick color tables

chaco in optional type=boolean

set to use the Chaco color tables

vis in optional type=boolean

set to use the VIS library color tables

_extra in out optional type=keyword

keywords to LOADCT

Author information


Color tables accessed with VIS_LOADCT and VIS_XLOADCT are provided courtesy of Brewer, Cynthia A., 2007. http://www.ColorBrewer.org, accessed 20 October 2007.

Apache-Style Software License for ColorBrewer software and ColorBrewer Color Schemes

Copyright (c) 2002 Cynthia Brewer, Mark Harrower, and The Pennsylvania State University.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

File attributes

Modification date: Mon Nov 29 18:33:10 2010
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