diff options
| author | Tristan Zur <tzur@web.web.ccwn.org> | 2014-03-27 22:27:47 +0100 |
|---|---|---|
| committer | Tristan Zur <tzur@web.web.ccwn.org> | 2014-03-27 22:27:47 +0100 |
| commit | b62676ca5d3d6f6ba3f019ea3f99722e165a98d8 (patch) | |
| tree | 86722cb80f07d4569f90088eeaea2fc2f6e2ef94 /js/dojo-1.6/dojox/gfx3d/gradient.js | |
Diffstat (limited to 'js/dojo-1.6/dojox/gfx3d/gradient.js')
| -rw-r--r-- | js/dojo-1.6/dojox/gfx3d/gradient.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/js/dojo-1.6/dojox/gfx3d/gradient.js b/js/dojo-1.6/dojox/gfx3d/gradient.js new file mode 100644 index 0000000..90ff197 --- /dev/null +++ b/js/dojo-1.6/dojox/gfx3d/gradient.js @@ -0,0 +1,48 @@ +/*
+ Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
+ Available via Academic Free License >= 2.1 OR the modified BSD license.
+ see: http://dojotoolkit.org/license for details
+*/
+
+
+if(!dojo._hasResource["dojox.gfx3d.gradient"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.gfx3d.gradient"] = true;
+dojo.provide("dojox.gfx3d.gradient");
+
+dojo.require("dojox.gfx3d.vector");
+dojo.require("dojox.gfx3d.matrix");
+
+(function(){
+ var dist = function(a, b){ return Math.sqrt(Math.pow(b.x - a.x, 2) + Math.pow(b.y - a.y, 2)); };
+ var N = 32;
+
+ dojox.gfx3d.gradient = function(model, material, center, radius, from, to, matrix){
+ // summary: calculate a cylindrical gradient
+ // model: dojox.gfx3d.lighting.Model: color model
+ // material: Object: defines visual properties
+ // center: Object: center of the cylinder's bottom
+ // radius: Number: radius of the cylinder
+ // from: Number: from position in radians
+ // to: Number: from position in radians
+ // matrix: dojox.gfx3d.Matrix3D: the cumulative transformation matrix
+ // tolerance: Number: tolerable diffirence in colors between gradient steps
+
+ var m = dojox.gfx3d.matrix, v = dojox.gfx3d.vector, mx = m.normalize(matrix),
+ f = m.multiplyPoint(mx, radius * Math.cos(from) + center.x, radius * Math.sin(from) + center.y, center.z),
+ t = m.multiplyPoint(mx, radius * Math.cos(to) + center.x, radius * Math.sin(to) + center.y, center.z),
+ c = m.multiplyPoint(mx, center.x, center.y, center.z), step = (to - from) / N, r = dist(f, t) / 2,
+ mod = model[material.type], fin = material.finish, pmt = material.color,
+ colors = [{offset: 0, color: mod.call(model, v.substract(f, c), fin, pmt)}];
+
+ for(var a = from + step; a < to; a += step){
+ var p = m.multiplyPoint(mx, radius * Math.cos(a) + center.x, radius * Math.sin(a) + center.y, center.z),
+ df = dist(f, p), dt = dist(t, p);
+ colors.push({offset: df / (df + dt), color: mod.call(model, v.substract(p, c), fin, pmt)});
+ }
+ colors.push({offset: 1, color: mod.call(model, v.substract(t, c), fin, pmt)});
+
+ return {type: "linear", x1: 0, y1: -r, x2: 0, y2: r, colors: colors};
+ };
+})();
+
+}
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