Jessica Holle wrote:
Hi,
I want to draw a line myself with Metafun.
This line should looks like in the module pre-05.
I've copied a few lines and try to understand what there happend.
But it failed. I've also read in the metafun.pdf, but it ist very
hard to understand.
I don't see the context between the numbers of x ond y. When I
change the numbers the output varies but in no relation to the
numbers.
Can anyone help to explain this to me or has another documentation?
so looks my test:
\setupoutput[pdftex]
\setupcolors[state=start]
\definecolor[back2][r=.6,g=.7,b=.8]
\definecolor[back][s=.95]
\starttext
\startMPinclusions
def random_hash_frame (expr width, height, offset, linewidth ) =
def delta = ((uniformdeviate .5offset) + .25offset) enddef ;
x1 := 0.5cm ; y1 :=0.5cm ; x2 := 16cm ; y2 := 3cm ;
drawoptions(withpen pencircle scaled linewidth withcolor
\MPcolor{back2}) ;
fill z1--(x2,y1)--z2--(x1,y2)--cycle ;
enddef;
\stopMPinclusions
\startuseMPgraphic{jessi}
random_hash_frame(height,width, 0.5cm,0.5cm)
10cm,5cm
or whatever, you need to provide some known measures
\stopuseMPgraphic
\useMPgraphic{jessi}
\stoptext
think of z1 being equivalent to (x1,y1)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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