symbol/color/line consistency in terminals

[Daniel J S. <dan...@ie...>]

[resending to start new subject thread]

Daniel J Sebald wrote:

>>>> I thought we did that already. Which terminals escaped the grand
>>>> unification?
>
>> 
>> 
>> Really?  I wasn't watching list email for a while months back.  Maybe
>> I've missed something here.  I'll investigate.


OK, I've looked at test in as many terminals as possible.  Here are my observations.  (I've listed with "BUG?" the things I think are easy fixes that may have been overlooked.)

So, what are we striving for in terms of consistency?  Symbols are pretty close to consistent up to 12 or so.  Colors are not consistent, but there is the "rgb" color specification now so maybe that isn't an issue.  On the other hand, the first 6 colors are pretty consistent so maybe it is worth trying for more consistency (up to 12?).  Line type is inconsistent.  Would be nice to have a least the first 6 or so consistent.  Looks doable from what I've seen, but there is some work.  I wouldn't suggest trying for consistency in everything at once.  First, fix the few symbol problems with small patches.

Is there any of the below terminal patterns that might serve as the quasi-standard or most typical that *if* we were to seek consistency we'd aim for that one?  PostScript/PDF perhaps?

Dan


Comments:

- "png" doesn't appear to have a "dashed" option.
- Number to symbol translation is pretty consistent across terminals up to #13.
- "pdf" has same exact symbol translation as "postscript" except #1 is a dot,
  not a plus (BUG?).
- "fig" has symbol inconsistencies after #4 (BUG?).
- "latex" has symbol inconsistencies immediately (BUG?).
- "tkcanvas" has symbol inconsistencies after #4 similar to fig (BUG?).
- Number to color translation isn't near consistent.  However, the first five
  colors are pretty much red/green/blue/magenta/cyan.  After that #6 is
  sometimes yellow, sometimes brown.  After that, all terminals differ.
- Exception to the above is "tkcanvas" which is
  red/blue/green/brown/magenta/cyan (BUG?).
- Number to line pattern translation isn't near consistent.  There is fairly
  good agreement between line color and line pattern, but not perfect.
- "latex" doesn't support color, but we could upgrade that to use color
  package.  (Just LaTeX is still very useful for basic figures.)
- "jpeg", "png", "gif" and "tkcanvas" have no line patterns.
- "jpeg" exactly matches "png" and "gif", but the colors are a slightly darker
  hue than the other two output devices.  (No big problem, just peculiar.)
- The following accept "dashed" as option:  x11, postscript, pdf, fig
- The following accept "color" as option:  postscript, fig


Symbol translation for "x11 dashed" terminal:

-1 - black / solid / none
0 - black / dotted / dot
1 - red / solid / plus
2 - green / dashed / x
3 - blue / dotted / asterisk
4 - magenta / long dash / open square
5 - cyan / ??? / filled square
6 - brown / dash-dash-blank / open circle
7 - orange / dashed / filled circle
8 - peach / dotted / open triangle
9 - red / solid / filled triangle
10 - green / dashed / open down triangle
11 - blue / dotted / filled down triangle
12 - magenta / dashed / open diamond
13 - cyan / ??? / filled diamond


Symbol translation for "post dashed color" terminal:

-1 - black / solid / none
0 - black / dotted / dot
1 - red / solid / plus
2 - green / dashed / x
3 - blue / dashed (shorter) / asterisk
4 - magenta / dashed (shorter still) / open square
5 - cyan / dash-dot / filled square
6 - yellow / ??? / open circle
7 - black / dash-dash-blank / filled circle
8 - orange / dash-dot-dot / open triangle
9 - gray / dash-dash-dash-dash-blank / filled triangle
10 - red / solid / open down triangle
11 - green / dashed / filled down triangle
12 - blue / dashed (shorter) / open diamond
13 - magenta / dashed (shorter still) / filled diamond
14 - cyan / dash-dot / pentagon
15 - yellow / ??? / filled pentagon
16 - black / dash-dash-blank / circle tick up
(various fractionally filled circles)
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32


Symbol translation for "pdf dashed" terminal:

-1 - black / solid / none
0 - gray / solid / dot
1 - red / solid / dot
2 - green / dashed / x
3 - blue / dashed (shorter) / asterisk
4 - magenta / dashed (shorter still) / open square
5 - cyan / dash-shortdash / filled square
6 - brown / dash-shorterdash / open circle
7 - yellow / dash-dash-blank / filled circle
8 - dark blue / dash-dot-dot / open triangle
9 - orange / solid / filled triangle
10 - dark green / dashed / open down triangle
11 - purple / dashed (shorter) / filled down triangle
12 - dark brown / dashed (shorter still) / open diamond
13 - red / dashed-shortdash-shortdash / filled diamond
14 - green / dash-dot / pentagon
15 - blue / dash-dash-blank / filled pentagon
16 - magenta / dot-dash-dot / circle tick up
(various fractionally filled circles)
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32


Symbol translation for "png" AND "gif" AND "jpeg" (slightly darker hue) terminal:

-1 - black / solid / none
0 - gray / dotted / dot
1 - red / solid / plus
2 - green / solid / x
3 - blue / solid / asterisk
4 - purple / solid / open square
5 - cyan / solid / filled square
6 - brown / solid / open circle
7 - yellow / solid / filled circle
8 - dark blue / solid / open triangle
9 - orange / solid / filled triangle
10 - dark green / solid / open down triangle
11 - dark purple / solid / filled down triangle
12 - dark brown / solid / open diamond
13 - magenta / solid / filled diamond
14 - dark green / solid / plus
(repeat pattern, various shades of previous colors)
15
16 - black / dash-dash-blank / circle tick up
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33


Symbol translation for "fig dashed color":

-1 - black / solid / none
0 - black / dotted / dot
1 - red / solid / plus
2 - green / solid / x
3 - blue / solid / asterisk
4 - magenta / solid / open square
5 - cyan / solid / open diamond
6 - yellow / solid / open triangle
7 - black / solid / plus
8 - brown / solid / x
9 - battleship gray / solid / asterisk
10 - red / dashed / open square
11 - green / dashed / open diamond
12 - blue / dashed / open triangle
13 - magenta / dashed / plus
14 - cyan / dashed / x
15 - yellow / dashed / asterisk
16 - black / dashed / open square
17 - brown / dashed / open diamond
18 - battleship gray / dashed / open triangle
19 - red / dash-blank / plus
20 - green / dash-blank / x
[snip]
28 - red / longdash / plus
[snip]
46 - red / longerdash / plus


Symbol translation for "latex" (no color, but like Xfig this could probably be
upgraded to use the LaTeX color package):

-1 - black / solid / none
0 - black / solid / dot
1 - black / solid / open diamond
2 - black / dotted / plus
3 - black / heavy solid / open square
4 - black / heavy dotted / x
5 - black / heavier solid / open triangle
6 - black / heavy dot-dot-blank / star
7 - black / solid / circle
8 - black / dotted / big circle
9 - black / heavy solid / bigger circle
10 - black / heavy dotted / filled circle
11 - black / heavier solid / filled big circle
12 - black / heavy dot-dot-blank / filled bigger circle


Symbol translation for "tkcanvas":

-1 - black / solid / none
0 - gray / solid / dot
1 - red / solid / plus
2 - blue / solid / x
3 - green / solid / asterisk
4 - brown / solid / open square
5 - magenta / solid / open diamond
6 - cyan / solid / open triangle
7 - black / solid / plus
8 - gray / solid / x
9 - red / solid / asterisk
10 - blue / solid / open square
11 - green / solid / open diamond
12 - brown / solid / open triangle
13 - magenta / solid / plus


Others I'd like to test but haven't tools (or desire to compile gnuplot with
various libraries right now):  svg, corel, emf

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