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| author | Thomas White <taw@physics.org> | 2009-12-04 15:31:43 +0100 |
|---|---|---|
| committer | Thomas White <taw@physics.org> | 2009-12-04 15:31:43 +0100 |
| commit | 550acac3992f5b5aa2d162ed215ddd3359588450 (patch) | |
| tree | cb9334ab144498f197b4b0ba5885c08fe317f326 | |
| parent | 1e39bf6a4886194476f2c8cedac1814b3f53e6e1 (diff) | |
Fix rotation group sampling. D'oh.
| -rw-r--r-- | src/utils.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/utils.c b/src/utils.c index f27b1228..5942299d 100644 --- a/src/utils.c +++ b/src/utils.c @@ -122,10 +122,10 @@ struct quaternion random_quaternion() { struct quaternion q; - q.w = (double)random()/RAND_MAX; - q.x = (double)random()/RAND_MAX; - q.y = (double)random()/RAND_MAX; - q.z = (double)random()/RAND_MAX; + q.w = 2.0*(double)random()/RAND_MAX - 1.0; + q.x = 2.0*(double)random()/RAND_MAX - 1.0; + q.y = 2.0*(double)random()/RAND_MAX - 1.0; + q.z = 2.0*(double)random()/RAND_MAX - 1.0; q = normalise_quaternion(q); return q; |