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// Define list of available attributes for stroke and fill
var sugar = {
stroke: ['color', 'width', 'opacity', 'linecap', 'linejoin', 'miterlimit', 'dasharray', 'dashoffset']
, fill: ['color', 'opacity', 'rule']
, prefix: function(t, a) {
return a == 'color' ? t : t + '-' + a
}
}
// Add sugar for fill and stroke
;['fill', 'stroke'].forEach(function(m) {
var i, extension = {}
extension[m] = function(o) {
if (typeof o == 'undefined')
return this
if (typeof o == 'string' || SVG.Color.isRgb(o) || (o && typeof o.fill === 'function'))
this.attr(m, o)
else
// set all attributes from sugar.fill and sugar.stroke list
for (i = sugar[m].length - 1; i >= 0; i--)
if (o[sugar[m][i]] != null)
this.attr(sugar.prefix(m, sugar[m][i]), o[sugar[m][i]])
return this
}
SVG.extend(SVG.Element, SVG.FX, extension)
})
SVG.extend(SVG.Element, SVG.FX, {
// Map rotation to transform
rotate: function(d, cx, cy) {
return this.transform({ rotation: d, cx: cx, cy: cy })
}
// Map skew to transform
, skew: function(x, y, cx, cy) {
return arguments.length == 1 || arguments.length == 3 ?
this.transform({ skew: x, cx: y, cy: cx }) :
this.transform({ skewX: x, skewY: y, cx: cx, cy: cy })
}
// Map scale to transform
, scale: function(x, y, cx, cy) {
return arguments.length == 1 || arguments.length == 3 ?
this.transform({ scale: x, cx: y, cy: cx }) :
this.transform({ scaleX: x, scaleY: y, cx: cx, cy: cy })
}
// Map translate to transform
, translate: function(x, y) {
return this.transform({ x: x, y: y })
}
// Map flip to transform
, flip: function(a, o) {
return this.transform({ flip: a, offset: o })
}
// Map matrix to transform
, matrix: function(m) {
return this.attr('transform', new SVG.Matrix(arguments.length == 6 ? [].slice.call(arguments) : m))
}
// Opacity
, opacity: function(value) {
return this.attr('opacity', value)
}
// Relative move over x axis
, dx: function(x) {
return this.x((this instanceof SVG.FX ? 0 : this.x()) + x, true)
}
// Relative move over y axis
, dy: function(y) {
return this.y((this instanceof SVG.FX ? 0 : this.y()) + y, true)
}
// Relative move over x and y axes
, dmove: function(x, y) {
return this.dx(x).dy(y)
}
})
SVG.extend(SVG.Rect, SVG.Ellipse, SVG.Circle, SVG.Gradient, SVG.FX, {
// Add x and y radius
radius: function(x, y) {
var type = (this._target || this).type;
return type == 'radial' || type == 'circle' ?
this.attr('r', new SVG.Number(x)) :
this.rx(x).ry(y == null ? x : y)
}
})
SVG.extend(SVG.Path, {
// Get path length
length: function() {
return this.node.getTotalLength()
}
// Get point at length
, pointAt: function(length) {
return this.node.getPointAtLength(length)
}
})
SVG.extend(SVG.Parent, SVG.Text, SVG.FX, {
// Set font
font: function(o) {
for (var k in o)
k == 'leading' ?
this.leading(o[k]) :
k == 'anchor' ?
this.attr('text-anchor', o[k]) :
k == 'size' || k == 'family' || k == 'weight' || k == 'stretch' || k == 'variant' || k == 'style' ?
this.attr('font-'+ k, o[k]) :
this.attr(k, o[k])
return this
}
})
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