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SVG.Line = SVG.invent({
// Initialize node
create: 'line'
// Inherit from
, inherit: SVG.Shape
// Add class methods
, extend: {
// Move over x-axis
x: function(x) {
var b = this.bbox()
return x == null ? b.x : this.attr({
x1: this.attr('x1') - b.x + x
, x2: this.attr('x2') - b.x + x
})
}
// Move over y-axis
, y: function(y) {
var b = this.bbox()
return y == null ? b.y : this.attr({
y1: this.attr('y1') - b.y + y
, y2: this.attr('y2') - b.y + y
})
}
// Move by center over x-axis
, cx: function(x) {
var half = this.bbox().width / 2
return x == null ? this.x() + half : this.x(x - half)
}
// Move by center over y-axis
, cy: function(y) {
var half = this.bbox().height / 2
return y == null ? this.y() + half : this.y(y - half)
}
// Set width of element
, width: function(width) {
var b = this.bbox()
return width == null ? b.width : this.attr(this.attr('x1') < this.attr('x2') ? 'x2' : 'x1', b.x + width)
}
// Set height of element
, height: function(height) {
var b = this.bbox()
return height == null ? b.height : this.attr(this.attr('y1') < this.attr('y2') ? 'y2' : 'y1', b.y + height)
}
// Set line size by width and height
, size: function(width, height) {
var p = proportionalSize(this.bbox(), width, height)
return this.width(p.width).height(p.height)
}
// Set path data
, plot: function(x1, y1, x2, y2) {
return this.attr({
x1: x1
, y1: y1
, x2: x2
, y2: y2
})
}
}
// Add parent method
, construct: {
// Create a line element
line: function(x1, y1, x2, y2) {
return this.put(new SVG.Line().plot(x1, y1, x2, y2))
}
}
})
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