Re: [NTG-context] Problem with shading in Metafun (LMTX)
Nice. It works again. Thank you very much!
Cordially,
Jairo
El lun., 21 de dic. de 2020 2:45 a. m., Hans Hagen
escribió:
> On 12/21/2020 4:46 AM, Jairo A. del Rio wrote:
> > While shading works with MkIV, with LMTX the following breaks:
> >
> >
> > \startMPpage
> >
> > comment("two shades with named colors");
> >
> > fill fullcircle scaled 5cm
> >
> > withshademethod "circular"
> >
> > withshadecolors ((1,0,0),(0,0,1,0))
> >
> > ;
> >
> > fill fullcircle scaled 5cm shifted (6cm,0)
> >
> > withshademethod "circular"
> >
> > withcolor (1,0,0,0) shadedinto "blue"
> >
> > ;
> >
> > \stopMPpage
>
> in mp-base.mpxl there is a ; missing
>
> temp_any_u = u
>
> must be:
>
> temp_any_u := u ;
>
> (in the min and max macros)
>
> (i replaced some internal names as part of a cleanup)
>
> (there will be a new upload later that will also fix this)
>
> Hans
>
> -
>Hans Hagen | PRAGMA ADE
>Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -
>
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Re: [NTG-context] Problem with shading in Metafun (LMTX)
On 12/21/2020 4:46 AM, Jairo A. del Rio wrote:
While shading works with MkIV, with LMTX the following breaks:
\startMPpage
comment("two shades with named colors");
fill fullcircle scaled 5cm
withshademethod "circular"
withshadecolors ((1,0,0),(0,0,1,0))
;
fill fullcircle scaled 5cm shifted (6cm,0)
withshademethod "circular"
withcolor (1,0,0,0) shadedinto "blue"
;
\stopMPpage
in mp-base.mpxl there is a ; missing
temp_any_u = u
must be:
temp_any_u := u ;
(in the min and max macros)
(i replaced some internal names as part of a cleanup)
(there will be a new upload later that will also fix this)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] Problem with shading in Metafun (LMTX)
While shading works with MkIV, with LMTX the following breaks:
\startMPpage
comment("two shades with named colors");
fill fullcircle scaled 5cm
withshademethod "circular"
withshadecolors ((1,0,0),(0,0,1,0))
;
fill fullcircle scaled 5cm shifted (6cm,0)
withshademethod "circular"
withcolor (1,0,0,0) shadedinto "blue"
;
\stopMPpage
The log says:
metafun > log >
metafun > log > error: Unknown relation will be considered false
metafun > log >
metapost > log >
metapost > log >
metapost > log > :
metapost > log > if(EXPR0)>temp_any_u:
metapost > log > temp_any_u:=(EXPR0);fi ENDFOR
metapost > log >
max->begingroup.save.temp_any_u;if.pair(EXPR2):pair.temp_any_u.elseif.string(EXPR2):
string.temp_any_u.fi
;temp_any_u=(EXPR2)for.i=(TEXT3):if.i>temp_any_u:temp_any_u:=i;fi.endfor
metapost > log > .temp_any_u.endgroup
metapost > log >
mfun_max_radius->...er(EXPR2)-xpart.center(EXPR2))++(ypart.center(EXPR2)-ypart.lrcorner(EXPR2)),(xpart.urcorner(EXPR2)-xpart.center(EXPR2))++(ypart.urcorner(EXPR2)-ypart.center(EXPR2)))
metapost > log > endgroup
metapost > log >
withshademethod->...cimal.center(EXPR0)withprescript"sh_center_b="&ddecimal.center(EXPR0)withprescript"sh_radius_a="&decimal0withprescript"sh_radius_b="&decimal.mfun_max_radius((EXPR0))
metapost > log > fi
metapost > log >
metapost > log > withprescript
metapost > log >
withshadecolors->...hprescript"sh_color_a_"&decimal.mfun_shade_step&"="&colordecimals(EXPR0)withprescript"sh_color_b_"&decimal.mfun_shade_step&"="&colordecimals(EXPR1)else:withprescript
metapost > log > "sh_color=in...
metapost > log > <*> comment("two shades with named colors"); fill
fullcircle scaled 5cm withshademethod "circular" withshadecolors
((1,0,0),(0,0,1,0))
metafun > log >
metafun > log > Oh dear. I can't decide if the expression above is
positive, negative, or zero.
So this comparison test won't be 'true'.
metafun > log >
metapost > log > ; fill fullcircle scaled 5cm shifted (6cm,0)
withshademethod "...
metapost > log >
Hans told me not to use the B tag, so I'm asking first in case I've missed
something. Thank you in advance.
Best regards,
Jairo
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