@cantoo/pdf-lib/cjs/utils/elements/Plot.js

Create and modify PDF files with JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const maths_1 = require("../maths");
const GraphElement_1 = tslib_1.__importDefault(require("./GraphElement"));
const Point_1 = tslib_1.__importDefault(require("./Point"));
const Segment_1 = tslib_1.__importDefault(require("./Segment"));
class Plot extends GraphElement_1.default {
    constructor(points = []) {
        super();
        this.points = points;
    }
    getPoints() {
        return [...this.points];
    }
    translate(translationVector) {
        this.points = this.points.map((point) => (0, maths_1.plus)(point, translationVector));
    }
    isEqual(element) {
        if (!(element instanceof Plot))
            return false;
        const points = this.getPoints().map((coord) => new Point_1.default(coord));
        const points2 = element.getPoints().map((coord) => new Point_1.default(coord));
        return (points.every((point, i) => point.isEqual(points2[i])) ||
            points.reverse().every((point, i) => point.isEqual(points2[i])));
    }
    orthoProjection(P) {
        const points = this.getPoints();
        const orthos = points
            .slice(0, -1)
            .map((pt, i) => new Segment_1.default(new Point_1.default(pt), new Point_1.default(points[i + 1])))
            .map((seg) => seg.orthoProjection(P));
        let min = Number.POSITIVE_INFINITY;
        let closest = new Point_1.default(points[0]);
        orthos.forEach((ortho) => {
            const d = ortho.distance(P);
            if (d < min) {
                min = d;
                closest = ortho;
            }
        });
        return closest;
    }
}
exports.default = Plot;
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