58f8093689
- Updated all component headers and documentation
- Changed navbar and footer branding
- Updated homepage hero badge
- Modified page title in index.html
- Simplified footer text to 'Built with ❤️'
- Consistent V2 capitalization across all references
52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
export function Transform(k, x, y) {
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this.k = k;
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this.x = x;
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this.y = y;
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}
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Transform.prototype = {
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constructor: Transform,
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scale: function(k) {
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return k === 1 ? this : new Transform(this.k * k, this.x, this.y);
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},
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translate: function(x, y) {
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return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);
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},
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apply: function(point) {
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return [point[0] * this.k + this.x, point[1] * this.k + this.y];
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},
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applyX: function(x) {
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return x * this.k + this.x;
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},
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applyY: function(y) {
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return y * this.k + this.y;
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},
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invert: function(location) {
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return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];
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},
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invertX: function(x) {
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return (x - this.x) / this.k;
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},
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invertY: function(y) {
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return (y - this.y) / this.k;
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},
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rescaleX: function(x) {
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return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));
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},
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rescaleY: function(y) {
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return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));
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},
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toString: function() {
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return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";
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}
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};
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export var identity = new Transform(1, 0, 0);
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transform.prototype = Transform.prototype;
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export default function transform(node) {
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while (!node.__zoom) if (!(node = node.parentNode)) return identity;
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return node.__zoom;
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}
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