From 91a9e02bff0397ec9b1f55fdf61cef72eb0d8a0f Mon Sep 17 00:00:00 2001
From: hwc487
Date: Tue, 8 May 2012 15:53:35 -0700
Subject: Radial gradients to match CSS
---
js/lib/geom/shape-primitive.js | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'js/lib/geom/shape-primitive.js')
diff --git a/js/lib/geom/shape-primitive.js b/js/lib/geom/shape-primitive.js
index 97873d32..9864a8e9 100644
--- a/js/lib/geom/shape-primitive.js
+++ b/js/lib/geom/shape-primitive.js
@@ -49,6 +49,33 @@ ShapePrimitive.create = function(coords, normals, uvs, indices, primType, ver
return prim;
};
+ShapePrimitive.getBounds = function( prim )
+{
+ var verts = prim.bufferStreams[0];
+ var nVerts = verts.length;
+ var xMin = verts[0], xMax = verts[0],
+ yMin = verts[1], yMax = verts[1],
+ zMin = verts[2], zMax = verts[2];
+
+ for (var index=3; index<verts.length; )
+ {
+ if (verts[index] < xMin) xMin = verts[index];
+ else if (verts[index] > xMax) xMax = verts[index];
+
+ index++;
+ if (verts[index] < yMin) yMin = verts[index];
+ else if (verts[index] > yMax) yMax = verts[index];
+
+ index++;
+ if (verts[index] < zMin) zMin = verts[index];
+ else if (verts[index] > zMax) zMax = verts[index];
+
+ index++;
+ }
+
+ return [xMin, yMin, zMin, xMax, yMax, zMax];
+};
+
if (typeof exports === "object") {
exports.ShapePrimitive = ShapePrimitive;
}
\ No newline at end of file
--
cgit v1.2.3