[Therion] How to avoid that symbol-colour area blocks fills the blocks with chosen color

[Torstein Finnesand]

Thanks, that solved my problem. Thanks to the contributions from Bruce 
and Martin as well.
Torstein

On 05.11.2012 14:20, Stacho Mudrak wrote:
> You just need to remove filling from symbol definition.
>
> In your layout, try to use for example this code:
>
> code metapost
> def a_blocks (expr p) =
>   T:=identity;
>   pickup PenC;
>   path q, qq; q = bbox p;
>   picture tmp_pic;
>   uu := max(u, (xpart urcorner q - xpart llcorner q)/100, (ypart 
> urcorner q - ypart llcorner q)/100);
>   tmp_pic := image(
>     for i = xpart llcorner q step 2uu until xpart urcorner q:
>       for j = ypart llcorner q step 2uu until ypart urcorner q:
>         qq := punked 
> (((-.5uu,-.5uu)--(.5uu,-.5uu)--(.5uu,.5uu)--(-.5uu,.5uu)--cycle)
>     randomized (uu/2))
>              rotated uniformdeviate(360)
>              shifted ((i,j) randomized 1.6uu);
> if xpart (p intersectiontimes qq) < 0:
>  thdraw qq;
> fi;
>       endfor;
>     endfor;
>   );
>   clip tmp_pic to p;
>   draw tmp_pic;
> enddef;
>
> This is modified a_blocks_SKBB definition with "thclean qq;" statement 
> removed.
>
> S.
>
>
> On 4 November 2012 19:37, Bruce <bruce at tomo.co.nz 
> <mailto:bruce at tomo.co.nz>> wrote:
>
>     > How can I get use "area blocks" to behave like other sediments
>     when I
>     want colors (and no filling)?
>
>     Torstein
>
>     You will need to either choose a predefined 'area blocks' that
>     does not have
>     a solid fill from the standards available - currently AUT and SKBB
>     are the
>     only unique ones I think - and quite possibly they are both filled.
>
>     Or you will need to modify the existing definitions.
>
>     I have no time to check just now, but you might like to have a
>     look at what
>     I did here http://therion.speleo.sk/wiki/doku.php/examples (Sample
>     dataset
>     at the top of the page) and modify it a bit to see how it behaves with
>     colour assignments.
>
>     Bruce
>
>
>
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>
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