Function process

test/lib/rearrange.js:32–128

()

var dimY = 1;

function process() {

    var data = readFile(inputPath);
    data = JSON.parse(data);

    if (!(data instanceof Array)) {
        throw new Error('Data should be array');
    }

    var xMin = Infinity;
    var xMax = -Infinity;
    var yMin = Infinity;
    var yMax = -Infinity;

    data.forEach(function (point) {
        xMin = Math.min(point[dimX], xMin);
        xMax = Math.max(point[dimX], xMax);
        yMin = Math.min(point[dimY], yMin);
        yMax = Math.max(point[dimY], yMax);
    });

    console.log('xMin', xMin, 'xMax', xMax, 'yMin', yMin, 'yMax', yMax);

    var cellWidth = (xMax - xMin) / xGridCount;
    var cellHeight = (yMax - yMin) / yGridCount;

    var grids = [];
    var gridsSize = [];

    data.forEach(function (point) {
        var gridXIndex = Math.floor((point[dimX] - xMin) / cellWidth);
        var gridYIndex = Math.floor((point[dimY] - yMin) / cellHeight);

        var line = grids[gridYIndex] || (grids[gridYIndex] = []);
        var cell = line[gridXIndex] || (line[gridXIndex] = []);

        cell.push(point);

        gridsSize[gridYIndex] = gridsSize[gridYIndex] || [];
        gridsSize[gridYIndex][gridXIndex] = gridsSize[gridYIndex][gridXIndex] || [];
        gridsSize[gridYIndex][gridXIndex] = cell.length;
    });

    // Sort for render outline firstly.
    for (var i = 0; i < grids.length; i++) {
        var line = grids[i];
        if (!line || !line.length) {
            continue;
        }

        for (var j = 0; j < line.length; j++) {
            var cell = line[j];
            if (!cell || !cell.length) {
                continue;
            }

            cell.sort(function (a, b) {
                return b.length - a.length;