image-js/lib/draw/drawPolylineOnMask.js

Image processing and manipulation in JavaScript

import { maskToOutputMask } from '../utils/getOutputImage.js';
/**
 * Draw a polyline defined by an array of points on an image.
 * @param mask - Mask to process.
 * @param points - Polyline array of points.
 * @param options - Draw polyline options.
 * @returns The mask with the polyline drawing.
 */
export function drawPolylineOnMask(mask, points, options = {}) {
    const newImage = maskToOutputMask(mask, options, { clone: true });
    for (let i = 0; i < points.length - 1; i++) {
        const from = points[i];
        const to = points[i + 1];
        newImage.drawLine(from, to, { out: newImage, origin: options.origin });
    }
    return newImage;
}
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