----- Original Message ----- From: "Hans Hagen" To: Sent: Wednesday, April 16, 2003 12:10 PM Subject: Re: [NTG-context] meta post problem

At 09:18 16/04/2003 +0200, you wrote:

...

hi all

I have another metapost probelem: I would like to have a shade effect like this: circular_shade(p,0,transparent(1,.25,white),transparent(1,.75,white)) ; but it seems that this doesn'n work wiht transparent colors. both of the transparent colors get black in the picture. Is there another simple solution to reach this effect?

not yet, transparent shades are not supported (in pdf)

Hans

ok, then I have to solve it in another way, and that leads me to another problem: I have two circles a:= fullcircle sized 1.1; and b:= fullcircle sized 1.4; how can I fill the area between the inner (a) and the outer (b) circle with a color?? so that the inner circle stays transparent. I think this is something simple but I didn't found an example for that. severin

------------------------------------------------------------------------- Hans Hagen | PRAGMA ADE | pragma@wxs.nl Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com ------------------------------------------------------------------------- information: http://www.pragma-ade.com/roadmap.pdf documentation: http://www.pragma-ade.com/showcase.pdf -------------------------------------------------------------------------

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Hans Hagen writes: Hi,

fill fullcircle scaled 4cm -- reverse fullcircle scaled 3cm -- cycle ;

I thought about reversing the path, too, but did not find any solution that is so "simple"! Patrick (happy to see such examples) PS:

\stopMPpage

how many different MP environments for ConTeXt are out there? MPcode, MPpage, useMPgraphic, uniqMPgraphic, MPlayer (?), MPfigure, ...

At 13:19 16/04/2003 +0200, you wrote:

...

ok, then I have to solve it in another way, and that leads me to another problem: I have two circles a:= fullcircle sized 1.1; and b:= fullcircle sized 1.4; how can I fill the area between the inner (a) and the outer (b) circle with a color?? so that the inner circle stays transparent. I think this is something simple but I didn't found an example for that.

well, if you are prepared for a puzzling solution:

% output=pdftex

\starttext

\setupcolors[state=start]

\startMPpage

fill fullsquare rotated 45 scaled 4cm withcolor red ;

fill fullcircle scaled 4cm -- reverse fullcircle scaled 3cm -- cycle ;

\stopMPpage

\stoptext

(side effect: a reverse path does an unfill in ps/pdf) (I'll add this

hi this is a nice solution:) thanks severin ----- Original Message ----- From: "Hans Hagen" To: Sent: Wednesday, April 16, 2003 1:46 PM Subject: Re: [NTG-context] meta post problem / solution trick

to the metafun manual)

Hans ------------------------------------------------------------------------- Hans Hagen | PRAGMA ADE | pragma@wxs.nl Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com ------------------------------------------------------------------------- information: http://www.pragma-ade.com/roadmap.pdf documentation: http://www.pragma-ade.com/showcase.pdf -------------------------------------------------------------------------

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