Re: embedding color in a title using @Cnnn syntax

[Ansley Manke <Ansley.B.Manke@xxxxxxxx>]

Hi all,
Thanks Andrew for your answer - We have the problem with
<NL> and @Cnnn on our bug list and we do intend to fix it,
but it's great to have a workaround in the meantime.  The
issues about the ASCII font came up last week, and are I hope
addressed by the conversation on the list about using the
ASCII font and special-character fonts.  That thread starts
with this message
http://www.ferret.noaa.gov/Ferret/Mail_Archives/fu_2003/msg01551.html
and the answer is to include the escape character in label
strings, as outlined in this FAQ,
"How can I change fonts (or use a special PPLUS character)
once I've changed to ASCII font?" at
http://www.ferret.noaa.gov/Ferret/FAQ/custom_labels/ascii_fonts.html


Andrew Wittenberg wrote:
> On Mon, 4 Oct 2004, Steve Knox wrote:
>
> > I'm trying to use the "@Cnnn" syntax to embed different colors in a plot 
> > title.
> >
> > let t1="@C000line 1<NL> @C002line 2 @C003rest of line"
> > plot/symbol/line/title="`t1`" tmx,ghcn_tmax,ghcn_tmax-tmx
> > !-> plot/symbol/line/title="@C000line 1<NL> @C002line 2 @C003rest of 
> > line" tmx,ghcn_tmax,ghcn_tmax-tmx
> >
> > The title that is produced has the text "line 1" in black but the text 
> > "line 2" is "C002line 2" in color black The text "rest of line" is 
> > green, which is correct. Why isn't the color of "line 2" getting set to 
> > "red"? It seems to be dropping the "@" and thus not interpreting the 
> > @C002. If I drop the newline symbol "<nl>" it works.
>
> Hi Steve,
>
> The 1-digit color-change command (@Pn) seems to work fine, as do most of
> the font-change commands (@SG, etc.).  But the ASCII simplex (@AS) font
> causes some problems, and @Cnnn seems to get ignored after the first <NL>.  
> By a stroke of luck, I discovered that one can prevent this by putting a
> "closing @C" before the next color change. Here are some examples:
>
> plot/hl=0:1/vl=0:1/vs 0,0
> label .2 .7 0 0 .3 "@P2This<NL>@P3works<NL>@P4fine."
> label .5 .7 0 0 .3 "@C002This<NL>@C003does<NL>@C004not."
> label .8 .7 0 0 .3 "@C002This<NL>@C@C003fixes<NL>@C@C004it\!"
> label .2 .3 0 0 .3 "Greek<NL>@SGt@SR_y<NL>works."
> label .7 .3 0 0 .3 "@ASASCII @P2simplex<NL>@P3has @P4some<NL>problems."
>
> Cheers,
>
> Andrew