lineplots/
vis_slopegraph.pro
direct graphics
includes main-level programProduce a comparison chart as shown in the examples section.
Examples
See the main-level example program:
IDL> .run vis_slopegraph
The slopegraph concept and the data for this example were taken from *The Visual Display of Quantitative Information* by Edward Tufte.
Routines
result = vis_slopegraph_spread(values, charHeight, lineHeight)Spread out text lines that are too close to each other.
vis_slopegraph, names, startValues, endValues [, start_title=string] [, end_title=string] [, title=string] [, line_color=long] [, value_format=string] [, text_color=long] [, delimiter=string] [, _extra=keywords]Creates a comparison chart.
Routine details
top vis_slopegraph_spread
result = vis_slopegraph_spread(values, charHeight, lineHeight)
Spread out text lines that are too close to each other.
Return value
fltarr
Parameters
- values in required type=fltarr
values to spread
- charHeight in required type=float
height of a character in data coordinates
- lineHeight in required type=float
height of a line of text in data coordinates (baseline to baseline)
Other attributes
- Bugs:
this should probably be an iterative process because fixing up the values could actually cause more problems in certain cases
top vis_slopegraph
vis_slopegraph, names, startValues, endValues [, start_title=string] [, end_title=string] [, title=string] [, line_color=long] [, value_format=string] [, text_color=long] [, delimiter=string] [, _extra=keywords]
Creates a comparison chart.
Parameters
- names in required type=strarr
names of the items in the comparison
- startValues in required type=fltarr
starting values of the items in the same order as names
- endValues in required type=fltarr
ending values of the items in the same order as names
Keywords
- start_title in optional type=string
title over column of starting values
- end_title in optional type=string
title over column of ending values
- title in optional type=string
main title
- line_color in optional type=long
color of lines
- value_format in optional type=string
format code for printing values
- text_color in optional type=long
color of text
- delimiter in optional type=string
text to include between names and printed values
- _extra in optional type=keywords
keywords to PLOT, PLOTS, and XYOUTS
File attributes
| Modification date: | Tue Jul 12 16:38:10 2011 |
| Lines: | 210 |
| Docformat: | rst rst |