73 lines
1.6 KiB
JavaScript
73 lines
1.6 KiB
JavaScript
"use strict";
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const { z } = require("typo-geom");
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module.exports = class Point {
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constructor(x, y, on, cubic) {
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this.x = x;
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this.y = y;
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this.on = on;
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this.cubic = cubic;
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}
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add(z2) {
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return this.addScale(1, z2);
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}
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addScale(scale, z2) {
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return new Point(this.x + scale * z2.x, this.y + scale * z2.y, this.on, this.cubic);
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}
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mix(scale, z2) {
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return new Point(
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this.x + scale * (z2.x - this.x),
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this.y + scale * (z2.y - this.y),
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this.on,
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this.cubic
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);
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}
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scale(t) {
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return new Point(t * this.x, t * this.y, this.on, this.cubic);
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}
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round(d) {
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return new Point(
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Math.round(d * this.x) / d,
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Math.round(d * this.y) / d,
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this.on,
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this.cubic
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);
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}
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static from(z, on, cubic) {
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return new Point(z.x || 0, z.y || 0, on, cubic);
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}
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static cornerFrom(z) {
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return new Point(z.x || 0, z.y || 0, true, false);
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}
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static offFrom(z) {
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return new Point(z.x || 0, z.y || 0, false, false);
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}
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static cubicOffFrom(z) {
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return new Point(z.x || 0, z.y || 0, false, true);
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}
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static cornerFromXY(x, y) {
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return new Point(x || 0, y || 0, true, false);
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}
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static offFromXY(x, y) {
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return new Point(x || 0, y || 0, false, false);
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}
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static cubicOffFromXY(x, y) {
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return new Point(x || 0, y || 0, false, true);
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}
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static transformed(tfm, z) {
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return Point.transformedXY(tfm, z.x, z.y, z.on, z.cubic);
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}
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static transformedXY(tfm, x, y, on, cubic) {
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return new Point(
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x * tfm.xx + y * tfm.yx + tfm.x || 0,
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x * tfm.xy + y * tfm.yy + tfm.y || 0,
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on,
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cubic
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);
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}
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static translated(z, dx, dy) {
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return new Point(z.x + dx || 0, z.y + dy || 0, z.on, z.cubic);
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}
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};
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