@jbrowse/plugin-wiggle/esm/d3-hierarchy2/treemap/resquarify.js

JBrowse 2 wiggle adapters, tracks, etc.

import treemapDice from "./dice.js";
import treemapSlice from "./slice.js";
import { phi, squarifyRatio } from "./squarify.js";
export default (function custom(ratio) {
    function resquarify(parent, x0, y0, x1, y1) {
        if ((rows = parent._squarify) && (rows.ratio === ratio)) {
            var rows, row, nodes, i, j = -1, n, m = rows.length, value = parent.value;
            while (++j < m) {
                row = rows[j], nodes = row.children;
                for (i = row.value = 0, n = nodes.length; i < n; ++i)
                    row.value += nodes[i].value;
                if (row.dice)
                    treemapDice(row, x0, y0, x1, value ? y0 += (y1 - y0) * row.value / value : y1);
                else
                    treemapSlice(row, x0, y0, value ? x0 += (x1 - x0) * row.value / value : x1, y1);
                value -= row.value;
            }
        }
        else {
            parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1);
            rows.ratio = ratio;
        }
    }
    resquarify.ratio = function (x) {
        return custom((x = +x) > 1 ? x : 1);
    };
    return resquarify;
})(phi);