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poly2d/: Yet another 2D polygon library (WIP)

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This commit is contained in:
Werner Almesberger
2012-05-04 21:40:55 -03:00
parent c2bfbd5a5e
commit dfa85075e8
24 changed files with 1793 additions and 0 deletions
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52
poly2d/test/offset Executable file
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@@ -0,0 +1,52 @@
#!/bin/sh
. ./Common
###############################################################################
tst "outer offset" <<EOF
struct p2d *p = p2d_new();
struct p2d *q;
p2d_append(p, v2d_new(0, 0));
p2d_append(p, v2d_new(2, 0));
p2d_append(p, v2d_new(2, 1));
p2d_append(p, v2d_new(0, 1));
p2d_close(p);
q = p2d_offset(p, 0.5);
p2d_write_gnuplot(stdout, p2d_reverse(q->next));
EOF
expect <<EOF
-0.5 -0.5
2.5 -0.5
2.5 1.5
-0.5 1.5
-0.5 -0.5
EOF
#------------------------------------------------------------------------------
tst "inner offset" <<EOF
struct p2d *p = p2d_new();
struct p2d *q;
p2d_append(p, v2d_new(0, 0));
p2d_append(p, v2d_new(2, 0));
p2d_append(p, v2d_new(2, 1));
p2d_append(p, v2d_new(0, 1));
p2d_close(p);
q = p2d_offset(p, -0.1);
p2d_write_gnuplot(stdout, q);
EOF
expect <<EOF
0.1 0.1
1.9 0.1
1.9 0.9
0.1 0.9
0.1 0.1
EOF
###############################################################################