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SVG.Circle = SVG.invent({
// Initialize node
create: 'circle'
// Inherit from
, inherit: SVG.Shape
// Add parent method
, construct: {
// Create circle element, based on ellipse
circle: function(size) {
return this.put(new SVG.Circle).rx(new SVG.Number(size).divide(2)).move(0, 0)
}
}
})
SVG.extend(SVG.Circle, SVG.FX, {
// Radius x value
rx: function(rx) {
return this.attr('r', rx)
}
// Alias radius x value
, ry: function(ry) {
return this.rx(ry)
}
})
SVG.Ellipse = SVG.invent({
// Initialize node
create: 'ellipse'
// Inherit from
, inherit: SVG.Shape
// Add parent method
, construct: {
// Create an ellipse
ellipse: function(width, height) {
return this.put(new SVG.Ellipse).size(width, height).move(0, 0)
}
}
})
SVG.extend(SVG.Ellipse, SVG.Rect, SVG.FX, {
// Radius x value
rx: function(rx) {
return this.attr('rx', rx)
}
// Radius y value
, ry: function(ry) {
return this.attr('ry', ry)
}
})
// Add common method
SVG.extend(SVG.Circle, SVG.Ellipse, {
// Move over x-axis
x: function(x) {
return x == null ? this.cx() - this.rx() : this.cx(x + this.rx())
}
// Move over y-axis
, y: function(y) {
return y == null ? this.cy() - this.ry() : this.cy(y + this.ry())
}
// Move by center over x-axis
, cx: function(x) {
return x == null ? this.attr('cx') : this.attr('cx', x)
}
// Move by center over y-axis
, cy: function(y) {
return y == null ? this.attr('cy') : this.attr('cy', y)
}
// Set width of element
, width: function(width) {
return width == null ? this.rx() * 2 : this.rx(new SVG.Number(width).divide(2))
}
// Set height of element
, height: function(height) {
return height == null ? this.ry() * 2 : this.ry(new SVG.Number(height).divide(2))
}
// Custom size function
, size: function(width, height) {
var p = proportionalSize(this.bbox(), width, height)
return this
.rx(new SVG.Number(p.width).divide(2))
.ry(new SVG.Number(p.height).divide(2))
}
})
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