higlass/app/scripts/utils/scales-to-genome-loci.js

HiGlass Hi-C / genomic / large data viewer

import dataToGenomicLoci from './data-to-genomic-loci';

/** @typedef {import('./data-to-genomic-loci').GenomicLoci} GenomicLoci */

/**
 * Convert a pair of scales to genomic coordinates.
 * @param {import('../types').Scale} xScale
 * @param {import('../types').Scale} yScale
 * @param {import('../types').ChromInfo} chromInfo
 * @returns {[...GenomicLoci, ...GenomicLoci] | undefined} The genomic coordinates.
 */
export const scalesToGenomeLoci = (xScale, yScale, chromInfo) => {
  if (chromInfo === null || !xScale || !yScale) return undefined;

  const x0 = xScale.domain()[0];
  const x1 = xScale.domain()[1];
  const y0 = yScale.domain()[0];
  const y1 = yScale.domain()[1];

  return [
    ...dataToGenomicLoci(x0, x1, chromInfo),
    ...dataToGenomicLoci(y0, y1, chromInfo),
  ];
};

export default scalesToGenomeLoci;