61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
'use strict';
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var mbgl = require('../../../lib/mapbox-gl-native');
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var request = require('request');
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mbgl.on('message', function(msg) {
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console.log('%s (%s): %s', msg.severity, msg.class, msg.text);
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});
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module.exports = function (style, options, callback) {
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var map = new mbgl.Map({
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ratio: options.pixelRatio,
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request: function(req, callback) {
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request(req.url, {encoding: null}, function (err, response, body) {
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if (err) {
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callback(err);
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} else if (response.statusCode != 200) {
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callback(new Error(response.statusMessage));
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} else {
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callback(null, {data: body});
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}
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});
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}
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});
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var timedOut = false;
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var watchdog = setTimeout(function () {
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timedOut = true;
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map.dumpDebugLogs();
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callback(new Error('timed out after 20 seconds'));
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}, 20000);
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options.center = style.center;
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options.zoom = style.zoom;
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options.bearing = style.bearing;
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options.pitch = style.pitch;
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options.debug = {
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tileBorders: options.debug,
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collision: options.collisionDebug
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};
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map.load(style);
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map.render(options, function (err, pixels) {
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var results = options.queryGeometry ?
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map.queryRenderedFeatures(options.queryGeometry) :
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[];
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map.release();
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if (timedOut) return;
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clearTimeout(watchdog);
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callback(err, pixels, results.map(prepareFeatures));
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});
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function prepareFeatures(json) {
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var r = JSON.parse(json);
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delete r.layer;
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r.geometry = null;
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return r;
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}
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};
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