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Learning MetaPost by doing
beer consumption (liter)
VOORJAAR 2005
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Style Directives
In this section we explain how you can alter the appearance of graphics primitives,
e.g., allowing certain lines to be thicker and others to be dashed, using different
colours, and changing the type of the drawing pen.
Dashing
Examples show you best how the specify a dash pattern when drawing a line or
curve.
beginfig(1);
path p; p := (0,0)--(102,0);
def drawit (suffix p)(expr pattern) =
draw p dashed pattern;
p := p shifted (0,-13);
enddef;
drawit(p, withdots);
drawit(p, withdots scaled 2);
drawit(p, evenly);
drawit(p, evenly scaled 2);
drawit(p, evenly scaled 4);
drawit(p, evenly scaled 6);
p := (0,-150)--(102,-150);
def shiftit (suffix p)(expr s) =
draw p dashed evenly scaled 4 shifted s;
dotlabel("",point 0 of p);
dotlabel("",point 1 of p);
p := p shifted (0,-13);
enddef;
shiftit(p, (0,0));
shiftit(p, (4bp,0));
shiftit(p, (8bp,0));
shiftit(p, (12bp,0));
shiftit(p, (16bp,0));
shiftit(p, (20bp,0));
picture dd; dd :=
dashpattern(on 6bp off 2bp on 2bp off 2bp);
draw (0,-283)--(102,-283) dashed dd;
draw (0,-296)--(102,-296) dashed dd scaled 2;
endfig;
end;
In general, the syntax for dashing is
draw path dashed dash pattern;
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