[9fans] where to get color troff?

[9fans] where to get color troff?

[Fernan Bolando]

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Hi all

what are our plan9 option for making colored graphs for troff documents?
I am guessing this how it's going to be done

create graph using pure postscript -> troff -mpictures -> page

is there any other option?

fernan

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Re: [9fans] where to get color troff?

[Peter A. Cejchan]

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do you mean 'graph', or 'chart' ?
++pac

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Re: [9fans] where to get color troff?

[Fernan Bolando]

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On Tue, Apr 12, 2011 at 2:38 PM, Peter A. Cejchan <tyapca7@gmail.com> wrote:

> do you mean 'graph', or 'chart' ?
> ++pac
>

right now it's mostly charts.

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Re: [9fans] where to get color troff?

[Sape Mullender]

> On Tue, Apr 12, 2011 at 2:38 PM, Peter A. Cejchan <tyapca7@gmail.com> wrote:
>
>> do you mean 'graph', or 'chart' ?
>> ++pac
>>
>
> right now it's mostly charts.

I use these macros for generating color:

.de CL
\\X'PS \\$1 \\$2 \\$3 setrgbcolor'\\c
..
.de BK
\\X'PS 0 0 0 setrgbcolor'\\c
..
.de EM
\\$3\\X'PS 1 0 0 setrgbcolor'\\$1\\X'PS 0 0 0 setrgbcolor'\\$2
..

They only work if you generate postscript (you can, of course, turn that
into pdf as well).
.CL r g b
sets the color to the rgb values (0 0 0 being black, 1 1 1 being white,
0.5 0.5 0.5 being middle grey)
.BK
sets the color to black.
.EM "string1" "string2" "string3"
(emphasis), where strings 2 and 3 are optional prints string3 in the current
color, followed by string1 in red and string2 in black (with no space between
strings 3, 1 and 2 — they work as .B or .I in the .ms macro package.

	Sape

Re: [9fans] where to get color troff?

[Fernan Bolando]

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On Tue, Apr 12, 2011 at 3:33 PM, Sape Mullender <sape@plan9.bell-labs.com>wrote:

> > On Tue, Apr 12, 2011 at 2:38 PM, Peter A. Cejchan <tyapca7@gmail.com>
> wrote:
> >
> >> do you mean 'graph', or 'chart' ?
> >> ++pac
> >>
> >
> > right now it's mostly charts.
>
> I use these macros for generating color:
>
> .de CL
> \\X'PS \\$1 \\$2 \\$3 setrgbcolor'\\c
> ..
> .de BK
> \\X'PS 0 0 0 setrgbcolor'\\c
> ..
> .de EM
> \\$3\\X'PS 1 0 0 setrgbcolor'\\$1\\X'PS 0 0 0 setrgbcolor'\\$2
> ..
>
> They only work if you generate postscript (you can, of course, turn that
> into pdf as well).
> .CL r g b
> sets the color to the rgb values (0 0 0 being black, 1 1 1 being white,
> 0.5 0.5 0.5 being middle grey)
> .BK
> sets the color to black.
> .EM "string1" "string2" "string3"
> (emphasis), where strings 2 and 3 are optional prints string3 in the
> current
> color, followed by string1 in red and string2 in black (with no space
> between
> strings 3, 1 and 2 — they work as .B or .I in the .ms macro package.
>
>        Sape
>
>
Wow cool it worked. thanks a lot

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Re: [9fans] where to get color troff?

[pmarin]

/sys/src/cmd/postscript/mcolor/

On Tue, Apr 12, 2011 at 10:24 AM, Fernan Bolando
<fernanbolando@mailc.net> wrote:
>
>
> On Tue, Apr 12, 2011 at 3:33 PM, Sape Mullender <sape@plan9.bell-labs.com>
> wrote:
>>
>> > On Tue, Apr 12, 2011 at 2:38 PM, Peter A. Cejchan <tyapca7@gmail.com>
>> > wrote:
>> >
>> >> do you mean 'graph', or 'chart' ?
>> >> ++pac
>> >>
>> >
>> > right now it's mostly charts.
>>
>> I use these macros for generating color:
>>
>> .de CL
>> \\X'PS \\$1 \\$2 \\$3 setrgbcolor'\\c
>> ..
>> .de BK
>> \\X'PS 0 0 0 setrgbcolor'\\c
>> ..
>> .de EM
>> \\$3\\X'PS 1 0 0 setrgbcolor'\\$1\\X'PS 0 0 0 setrgbcolor'\\$2
>> ..
>>
>> They only work if you generate postscript (you can, of course, turn that
>> into pdf as well).
>> .CL r g b
>> sets the color to the rgb values (0 0 0 being black, 1 1 1 being white,
>> 0.5 0.5 0.5 being middle grey)
>> .BK
>> sets the color to black.
>> .EM "string1" "string2" "string3"
>> (emphasis), where strings 2 and 3 are optional prints string3 in the
>> current
>> color, followed by string1 in red and string2 in black (with no space
>> between
>> strings 3, 1 and 2 — they work as .B or .I in the .ms macro package.
>>
>>        Sape
>>
>
> Wow cool it worked. thanks a lot
>
>
>

Re: [9fans] where to get color troff?

[Jeff Sickel]

On Apr 12, 2011, at 2:33 AM, Sape Mullender wrote:

> I use these macros for generating color:

They work great for troff, now I just need to investigate applying the same technique to grap.

Re: [9fans] where to get color troff?

[Russ Cox]

> They work great for troff, now I just need to investigate applying the same technique to grap.

You can do it in pic (and I think grap) by just emitting some text
before drawing something.  In fact you can do arbitrary postscript
code.  This snippet uses the Pr string to push the current color
on the stack and then switch to gray.  The Pb string restores the
previous color from the stack.


.de XX
\\X'\\$1'
.br
.sp -1
..
.ie \n(yr>=100 .ds Ps "ps: exec
.el .ds Ps PS
.ds Pr "\*(Ps currentrgbcolor 0.75 0.75 0.75 setrgbcolor
.ds Pb "\*(Ps setrgbcolor

.G1
frame ht 1.5 wid 4 top invis right invis
label bot "Time"
label left "Goodput"
ticks left out at 0 "0", 1000000 "1Mbps"
.XX "\*(Pr
copy "/tmp/6.829/FQCBR:net0-stput-0.dat!" thru / next at $1,$2 /
new solid
.XX "\*(Pb
copy "/tmp/6.829/FQCBR:net0-stput-1.dat!" thru / next at $1,$2 /
new solid
copy "/tmp/6.829/FQCBR:net0-stput-2.dat!" thru / next at $1,$2 /
.G2

Re: [9fans] where to get color troff?

[Jeff Sickel]

On May 16, 2011, at 8:36 AM, Russ Cox wrote:

>> They work great for troff, now I just need to investigate applying the same technique to grap.
> 
> You can do it in pic (and I think grap) by just emitting some text
> before drawing something.  In fact you can do arbitrary postscript
> code.  This snippet uses the Pr string to push the current color
> on the stack and then switch to gray.  The Pb string restores the
> previous color from the stack.

Thanks, that made me look back at the docks (and Sape's original
post) and remember that the emitted text needs to be
.at the beginning of the line.