colorscale
by Rob Comer
18 Oct 2002
(Updated 14 Dec 2011)
Add a color scale bar using part of the figure's colormap.
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| File Information |
| Description |
COLORSCALE creates a color scale for use with an integer-valued image which has been encoded and quantized via a monotonic transformation from a real-valued array. The original array has physically meaningful units, but the image does not. The transformed image has been displayed with a direct mapping to the figure's colormap. (That is, the IMAGE object has a CDATAMAPPING of 'direct'.) The image and/or color scale may not use the entire colormap. The colormap may contain special values for null data areas, and these special values may be excluded from the scale bar. Or, the colormap may be deliberately partitioned and shared with a different image in the same figure, and that image may have its own, entirely distinct, color scale. In these cases, unlike the standard COLORBAR function, COLORSCALE can limit the displayed colors to the appropriate interval within the figure's colormap. |
| Acknowledgements |
This file inspired
Earth Observing System Data Visualization.
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| Required Products |
MATLAB
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| MATLAB release |
MATLAB 6.5 (R13)
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| Comments and Ratings (2) |
| 14 Apr 2005 |
Dan S.
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| 14 Apr 2005 |
Dan S.
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| Updates |
| 29 Jul 2009 |
Shortened summary. Adjusted wrapping in comment block. Updated copyright. Removed minor lint.
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| 14 Dec 2011 |
Removed extraneous files. Minor clean-up and lint removal in colorscale.m. |
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