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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /info/examples/lgc2/4-1-15.mp |
Initial commit
Diffstat (limited to 'info/examples/lgc2/4-1-15.mp')
-rw-r--r-- | info/examples/lgc2/4-1-15.mp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/info/examples/lgc2/4-1-15.mp b/info/examples/lgc2/4-1-15.mp new file mode 100644 index 0000000000..7e42d93cb4 --- /dev/null +++ b/info/examples/lgc2/4-1-15.mp @@ -0,0 +1,24 @@ +% --- start of displayed preamble in the book --- +vardef star(expr n) = + for i_:=0 upto 2n-1: + if odd i_: 1/2 fi (right rotated (180*(i_/n))) -- + endfor cycle +enddef; + +vardef blur(expr p,w,col)= + for i:=10 downto 1: + pickup pencircle scaled ((i*i/100)*w); + draw p withcolor ((i/10)[col,white]); + endfor; +enddef; + +% --- end of displayed preamble in the book --- +defaultfont:="ptmr8r"; +warningcheck:=0; +beginfig(1) +blur (unitsquare scaled 3cm,.5mm,red); +blur (fullcircle scaled 4cm,1mm,blue); +blur (star(10) xscaled 30mm yscaled 20mm + rotated 20,2mm,black); +endfig; +end; |