aboutsummaryrefslogtreecommitdiff
path: root/js/helper-classes/3D
diff options
context:
space:
mode:
Diffstat (limited to 'js/helper-classes/3D')
-rwxr-xr-xjs/helper-classes/3D/vec-utils.js19
1 files changed, 19 insertions, 0 deletions
diff --git a/js/helper-classes/3D/vec-utils.js b/js/helper-classes/3D/vec-utils.js
index 4eacd856..0916c840 100755
--- a/js/helper-classes/3D/vec-utils.js
+++ b/js/helper-classes/3D/vec-utils.js
@@ -113,6 +113,25 @@ var VecUtils = exports.VecUtils = Object.create(Object.prototype,
113 } 113 }
114 }, 114 },
115 115
116 vecDistSq : {
117 value: function( dimen, a, b ) {
118 var sum;
119
120 if ((a.length < dimen) || (b.length < dimen))
121 {
122 throw new Error( "dimension error in VecUtils.vecDistSq" );
123 }
124
125 var sum = 0.0;
126 for (var i=0; i<dimen; i++)
127 {
128 var d = a[i] - b[i];
129 sum += d*d;
130 }
131 return sum;
132 }
133 },
134
116 vecDot : { 135 vecDot : {
117 value: function( dimen, v0, v1 ) { 136 value: function( dimen, v0, v1 ) {
118 if ((v0.length < dimen) || (v1.length < dimen)) 137 if ((v0.length < dimen) || (v1.length < dimen))