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Diffstat (limited to 'includes/js/dojox/math/curves.js')
| -rw-r--r-- | includes/js/dojox/math/curves.js | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/includes/js/dojox/math/curves.js b/includes/js/dojox/math/curves.js deleted file mode 100644 index 7045c41..0000000 --- a/includes/js/dojox/math/curves.js +++ /dev/null @@ -1,193 +0,0 @@ -if(!dojo._hasResource["dojox.math.curves"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. -dojo._hasResource["dojox.math.curves"] = true; -dojo.provide("dojox.math.curves"); - -dojo.mixin(dojox.math.curves, { - Line:function (start, end) { - this.start = start; - this.end = end; - this.dimensions = start.length; - for (var i = 0; i < start.length; i++) { - start[i] = Number(start[i]); - } - for (var i = 0; i < end.length; i++) { - end[i] = Number(end[i]); - } - this.getValue = function (n) { - var retVal = new Array(this.dimensions); - for (var i = 0; i < this.dimensions; i++) { - retVal[i] = ((this.end[i] - this.start[i]) * n) + this.start[i]; - } - return retVal; - }; - return this; - }, - Bezier:function(pnts) { - this.getValue = function (step) { - if (step >= 1) { - return this.p[this.p.length - 1]; - } - if (step <= 0) { - return this.p[0]; - } - var retVal = new Array(this.p[0].length); - for (var k = 0; j < this.p[0].length; k++) { - retVal[k] = 0; - } - for (var j = 0; j < this.p[0].length; j++) { - var C = 0; - var D = 0; - for (var i = 0; i < this.p.length; i++) { - C += this.p[i][j] * this.p[this.p.length - 1][0] * dojox.math.bernstein(step, this.p.length, i); - } - for (var l = 0; l < this.p.length; l++) { - D += this.p[this.p.length - 1][0] * dojox.math.bernstein(step, this.p.length, l); - } - retVal[j] = C / D; - } - return retVal; - }; - this.p = pnts; - return this; - }, - CatmullRom:function (pnts, c) { - this.getValue = function (step) { - var percent = step * (this.p.length - 1); - var node = Math.floor(percent); - var progress = percent - node; - var i0 = node - 1; - if (i0 < 0) { - i0 = 0; - } - var i = node; - var i1 = node + 1; - if (i1 >= this.p.length) { - i1 = this.p.length - 1; - } - var i2 = node + 2; - if (i2 >= this.p.length) { - i2 = this.p.length - 1; - } - var u = progress; - var u2 = progress * progress; - var u3 = progress * progress * progress; - var retVal = new Array(this.p[0].length); - for (var k = 0; k < this.p[0].length; k++) { - var x1 = (-this.c * this.p[i0][k]) + ((2 - this.c) * this.p[i][k]) + ((this.c - 2) * this.p[i1][k]) + (this.c * this.p[i2][k]); - var x2 = (2 * this.c * this.p[i0][k]) + ((this.c - 3) * this.p[i][k]) + ((3 - 2 * this.c) * this.p[i1][k]) + (-this.c * this.p[i2][k]); - var x3 = (-this.c * this.p[i0][k]) + (this.c * this.p[i1][k]); - var x4 = this.p[i][k]; - retVal[k] = x1 * u3 + x2 * u2 + x3 * u + x4; - } - return retVal; - }; - if (!c) { - this.c = 0.7; - } else { - this.c = c; - } - this.p = pnts; - return this; - }, - Arc:function (start, end, ccw){ - function translate(a,b){ - var c=new Array(a.length); - for(var i=0; i<a.length; i++){ c[i]=a[i]+b[i]; } - return c; - } - function invert(a){ - var b = new Array(a.length); - for(var i=0; i<a.length; i++){ b[i]=-a[i]; } - return b; - } - var center = dojox.math.midpoint(start, end); - var sides = translate(invert(center), start); - var rad = Math.sqrt(Math.pow(sides[0], 2) + Math.pow(sides[1], 2)); - var theta = dojox.math.radiansToDegrees(Math.atan(sides[1] / sides[0])); - if (sides[0] < 0){ - theta -= 90; - } else { - theta += 90; - } - dojox.math.curves.CenteredArc.call(this, center, rad, theta, theta + (ccw ? -180 : 180)); - }, - CenteredArc:function (center, radius, start, end) { - this.center = center; - this.radius = radius; - this.start = start || 0; - this.end = end; - this.getValue = function (n) { - var retVal = new Array(2); - var theta = dojox.math.degreesToRadians(this.start + ((this.end - this.start) * n)); - retVal[0] = this.center[0] + this.radius * Math.sin(theta); - retVal[1] = this.center[1] - this.radius * Math.cos(theta); - return retVal; - }; - return this; - }, - Circle:function(center, radius){ - dojox.math.curves.CenteredArc.call(this, center, radius, 0, 360); - return this; - }, - Path:function () { - var curves = []; - var weights = []; - var ranges = []; - var totalWeight = 0; - this.add = function (curve, weight) { - if (weight < 0) { - console.error("dojox.math.curves.Path.add: weight cannot be less than 0"); - } - curves.push(curve); - weights.push(weight); - totalWeight += weight; - computeRanges(); - }; - this.remove = function (curve) { - for (var i = 0; i < curves.length; i++) { - if (curves[i] == curve) { - curves.splice(i, 1); - totalWeight -= weights.splice(i, 1)[0]; - break; - } - } - computeRanges(); - }; - this.removeAll = function () { - curves = []; - weights = []; - totalWeight = 0; - }; - this.getValue = function (n) { - var found = false, value = 0; - for (var i = 0; i < ranges.length; i++) { - var r = ranges[i]; - if (n >= r[0] && n < r[1]) { - var subN = (n - r[0]) / r[2]; - value = curves[i].getValue(subN); - found = true; - break; - } - } - if (!found) { - value = curves[curves.length - 1].getValue(1); - } - for (var j = 0; j < i; j++) { - value = dojox.math.points.translate(value, curves[j].getValue(1)); - } - return value; - }; - function computeRanges() { - var start = 0; - for (var i = 0; i < weights.length; i++) { - var end = start + weights[i] / totalWeight; - var len = end - start; - ranges[i] = [start, end, len]; - start = end; - } - } - return this; - } -}); - -} |