Function calcGeoJSON

src/traces/scattergeo/plot.js:68–114

(calcTrace, fullLayout)

}

function calcGeoJSON(calcTrace, fullLayout) {
    var trace = calcTrace[0].trace;
    var geoLayout = fullLayout[trace.geo];
    var geo = geoLayout._subplot;
    var len = trace._length;
    var i, calcPt;

    if(Lib.isArrayOrTypedArray(trace.locations)) {
        var locationmode = trace.locationmode;
        var features = locationmode === 'geojson-id' ?
            geoUtils.extractTraceFeature(calcTrace) :
            getTopojsonFeatures(trace, geo.topojson);

        for(i = 0; i < len; i++) {
            calcPt = calcTrace[i];

            var feature = locationmode === 'geojson-id' ?
                calcPt.fOut :
                geoUtils.locationToFeature(locationmode, calcPt.loc, features);

            calcPt.lonlat = feature ? feature.properties.ct : [BADNUM, BADNUM];
        }
    }

    var opts = {padded: true};
    var lonArray;
    var latArray;

    if(geoLayout.fitbounds === 'geojson' && trace.locationmode === 'geojson-id') {
        var bboxGeojson = geoUtils.computeBbox(geoUtils.getTraceGeojson(trace));
        lonArray = [bboxGeojson[0], bboxGeojson[2]];
        latArray = [bboxGeojson[1], bboxGeojson[3]];
    } else {
        lonArray = new Array(len);
        latArray = new Array(len);
        for(i = 0; i < len; i++) {
            calcPt = calcTrace[i];
            lonArray[i] = calcPt.lonlat[0];
            latArray[i] = calcPt.lonlat[1];
        }

        opts.ppad = calcMarkerSize(trace, len);
    }

    trace._extremes.lon = findExtremes(geoLayout.lonaxis._ax, lonArray, opts);
    trace._extremes.lat = findExtremes(geoLayout.lataxis._ax, latArray, opts);
}

module.exports = {
    calcGeoJSON: calcGeoJSON,