@kwiz/fluentui/dist/controls/canvas/point.js

KWIZ common controls for FluentUI

export class Point {
    constructor(x, y, pressure, time) {
        if (isNaN(x) || isNaN(y)) {
            throw new Error(`Point is invalid: (${x}, ${y})`);
        }
        this.x = +x;
        this.y = +y;
        this.pressure = pressure || 0;
        this.time = time || Date.now();
    }
    distanceTo(start) {
        return Math.sqrt(Math.pow(this.x - start.x, 2) + Math.pow(this.y - start.y, 2));
    }
    equals(other) {
        return (this.x === other.x &&
            this.y === other.y &&
            this.pressure === other.pressure &&
            this.time === other.time);
    }
    velocityFrom(start) {
        return this.time !== start.time
            ? this.distanceTo(start) / (this.time - start.time)
            : 0;
    }
}
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