directgraphics/
vis_colorbar.pro
direct graphics
includes main-level programExamples
Running the main-level program at the end of the file should produce something like:
Colorbars can be created in indexed color or decomposed color. It can be
useful to draw a colorbar when in decomposed color by specifying the the
colortable colors with the RED, GREEN, and BLUE keywords and the
color of the axis with AXIS_COLOR (as a long integer like '00ffff'x).
top vis_colorbar
vis_colorbar [, range=fltarr(2)] [, colors=bytarr] [, bottom=long] [, ncolors=long] [, /vertical] [, /horizontal] [, axis_color=color] [, /labels_on_right] [, /labels_on_top] [, red=bytarr(256)] [, green=bytarr(256)] [, blue=bytarr(256)] [, divisions=long] [, xticklen=float] [, yticklen=float] [, ticklen=float] [, _extra=keywords]
Produce a colorbar in direct graphics.
Keywords
- range in optional type=fltarr(2) default=[0., 1.]
data range of the colorbar
- colors in optional type=bytarr default=bindgen(256)
colors to use in the colorbar
- bottom in optional type=long default=0L
first color index to place in the colorbar; ignored if COLORS is specified
- ncolors in optional type=long default=256L
number of colors to place in the colorbar; ignored if COLORS is specified
- vertical in optional type=boolean
set to display a vertical colorbar; either VERTICAL or HORIZONTAL must be set
- horizontal in optional type=boolean
set to display a horizontal colorbar; either VERTICAL or HORIZONTAL must be set
- axis_color in optional type=color
color of axis, labels, etc.
- labels_on_right in optional type=boolean
set to place axis labels on the right instead of the left on vertical colorbars
- labels_on_top in optional type=boolean
set to place axis labels on the top instead of the bottom on horizontal colorbars
- red in optional type=bytarr(256) default=current color table
red values of the color table to display; uses the current color table if RED is not present
- green in optional type=bytarr(256) default=current color table
green values of the color table to display; uses the current color table if GREEN is not present
- blue in optional type=bytarr(256) default=current color table
blue values of the color table to display; uses the current color table if BLUE is not present
- divisions in optional type=long default=6L
number of tick intervals along the length of the colorbar; there will be one more tick mark
- xticklen in optional type=float
length of tick marks for horizontal colorbars
- yticklen in optional type=float
length of tick marks for vertical colorbars
- ticklen in optional type=float
length of tick marks on colorbar
- _extra in optional type=keywords
keywords to VIS_IMAGE
File attributes
| Modification date: | Fri Dec 2 13:59:53 2011 |
| Lines: | 254 |
| Docformat: | rst rst |