[metapost] How to use a thinner pen?

[Rodolfo Medina]

Rodolfo Medina wrote:

>> It seems that I don't manage to use a pen thinner than the default 0.5bp.
>> When I give the command: `pickup pencircle scaled 0.1bp', or even `pickup
>> pencircle scaled 0.0000001bp', my eye can't notice any difference with the
>> default thickness.  Instead, a bigger thickness works fine.  What am I
>> missing?



Taco Hoekwater <taco at elvenkind.com> writes:

> You should be able to pick up a smaller pen.  Please post an example
> input file, so we can have a look. Also, how exactly do you view the
> output?





This is a simple test file, let's call it test.mp:

beginfig(1);
numeric u;
u = 1cm;
draw (0,-u)--(0,0)--(0,4u);
pickup pencircle scaled 2pt;
draw (-2u,0)--(0,0)--(4u,0);
pickup pencircle scaled 0.0000000000000001pt;
draw (0,u)--(u,u);
endfig;

end


.  I view it giving the following commands:

 $ mpost test
 $ tex mproof test.1
 $ dvips -Pwww -omproof.ps mproof
 $ gv mproof.ps


.  Thanks for your help.
Rodolfo