432 lines
11 KiB
JavaScript
432 lines
11 KiB
JavaScript
/* μlogger
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*
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* Copyright(C) 2017 Bartek Fabiszewski (www.fabiszewski.net)
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*
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* This is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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// openlayers 3+
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var map;
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var layerTrack;
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var layerMarkers;
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var selectedLayer;
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var olStyles;
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var loadedAPI = 'openlayers';
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function init() {
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addCss('css/ol.css', 'ol_css');
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var controls = [
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new ol.control.Zoom(),
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new ol.control.Rotate(),
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new ol.control.ScaleLine(),
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new ol.control.ZoomToExtent({ label: getExtentImg() }),
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];
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var view = new ol.View({
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center: ol.proj.fromLonLat([init_longitude, init_latitude]),
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zoom: 8
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});
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map = new ol.Map({
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target: 'map-canvas',
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controls: controls,
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view: view
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});
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// default layer: OpenStreetMap
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var osm = new ol.layer.Tile({
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name: 'OpenStreetMap',
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visible: true,
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source: new ol.source.OSM()
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});
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map.addLayer(osm);
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selectedLayer = osm;
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// add extra layers
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for (var layerName in ol_layers) {
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if (ol_layers.hasOwnProperty(layerName)) {
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var layerUrl = ol_layers[layerName];
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var ol_layer = new ol.layer.Tile({
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name: layerName,
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visible: false,
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source: new ol.source.XYZ({
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url: layerUrl
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})
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});
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map.addLayer(ol_layer);
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}
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}
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// init layers
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var lineStyle = new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: hexToRGBA(strokeColor, strokeOpacity),
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width: strokeWeight
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})
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});
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layerTrack = new ol.layer.Vector({
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name: 'Track',
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type: 'data',
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source: new ol.source.Vector(),
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style: lineStyle
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});
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layerMarkers = new ol.layer.Vector({
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name: 'Markers',
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type: 'data',
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source: new ol.source.Vector()
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});
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map.addLayer(layerTrack);
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map.addLayer(layerMarkers);
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// styles
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olStyles = {};
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var iconRed = new ol.style.Icon({
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anchor: [ 0.5, 1 ],
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src: 'images/marker-red.png'
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});
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var iconGreen = new ol.style.Icon({
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anchor: [ 0.5, 1 ],
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src: 'images/marker-green.png'
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});
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var iconWhite = new ol.style.Icon({
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anchor: [ 0.5, 1 ],
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opacity: 0.7,
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src: 'images/marker-white.png'
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});
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var iconGold = new ol.style.Icon({
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anchor: [ 0.5, 1 ],
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src: 'images/marker-gold.png'
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});
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olStyles['red'] = new ol.style.Style({
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image: iconRed
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});
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olStyles['green'] = new ol.style.Style({
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image: iconGreen
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});
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olStyles['white'] = new ol.style.Style({
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image: iconWhite
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});
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olStyles['gold'] = new ol.style.Style({
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image: iconGold
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});
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// popups
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var popupContainer = document.createElement('div');
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popupContainer.id = 'popup';
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popupContainer.className = 'ol-popup';
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document.getElementsByTagName('body')[0].appendChild(popupContainer);
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var popupCloser = document.createElement('a');
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popupCloser.id = 'popup-closer';
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popupCloser.className = 'ol-popup-closer';
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popupCloser.href = '#';
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popupContainer.appendChild(popupCloser);
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var popupContent = document.createElement('div');
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popupContent.id = 'popup-content';
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popupContainer.appendChild(popupContent);
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var popup = new ol.Overlay({
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element: popupContainer,
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autoPan: true,
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autoPanAnimation: {
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duration: 250
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}
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});
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popupCloser.onclick = function() {
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popup.setPosition(undefined);
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popupCloser.blur();
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return false;
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};
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// add click handler to map to show popup
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map.on('click', function(e) {
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var coordinate = e.coordinate;
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var feature = map.forEachFeatureAtPixel(e.pixel,
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function(feature, layer) {
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if (layer.get('name') == 'Markers') {
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return feature;
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}
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});
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if (feature) {
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var p = feature.get('p');
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var i = feature.getId();
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var posLen = feature.get('posLen');
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// popup show
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popup.setPosition(coordinate);
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popupContent.innerHTML = getPopupHtml(p, i, posLen);
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map.addOverlay(popup);
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if (document.getElementById('bottom').style.display == 'block') {
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var index = 0;
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for (var key in altitudes) {
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if (altitudes.hasOwnProperty(key) && key == i) {
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chart.setSelection([{ row: index, column: null }]);
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break;
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}
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index++;
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}
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}
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} else {
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// popup destroy
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popup.setPosition(undefined);
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}
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});
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// change mouse cursor when over marker
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map.on('pointermove', function(e) {
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var hit = map.forEachFeatureAtPixel(e.pixel, function(feature, layer) {
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if (layer.get('name') == 'Markers') {
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return true;
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} else {
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return false;
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}
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});
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if (hit) {
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this.getTargetElement().style.cursor = 'pointer';
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} else {
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this.getTargetElement().style.cursor = '';
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}
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});
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// layer switcher
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var switcher = document.createElement('div');
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switcher.id = 'switcher';
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switcher.className = 'ol-control';
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document.getElementsByTagName('body')[0].appendChild(switcher);
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var switcherContent = document.createElement('div');
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switcherContent.id = 'switcher-content';
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switcherContent.className = 'ol-layerswitcher';
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switcher.appendChild(switcherContent);
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map.getLayers().forEach(function (layer) {
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var layerLabel = document.createElement('label');
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layerLabel.innerHTML = layer.get('name');
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switcherContent.appendChild(layerLabel);
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var layerRadio = document.createElement('input');
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if (layer.get('type') === 'data') {
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layerRadio.type = 'checkbox';
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layerLabel.className = 'ol-datalayer';
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} else {
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layerRadio.type = 'radio';
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}
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layerRadio.name = 'layer';
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layerRadio.value = layer.get('name');
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layerRadio.onclick = switchLayer;
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if (layer.getVisible()) {
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layerRadio.checked = true;
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}
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layerLabel.insertBefore(layerRadio, layerLabel.childNodes[0]);
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});
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function switchLayer() {
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var layerName = this.value;
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map.getLayers().forEach(function (layer) {
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if (layer.get('name') === layerName) {
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if (layer.get('type') === 'data') {
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if (layer.getVisible()) {
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layer.setVisible(false);
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} else {
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layer.setVisible(true);
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}
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} else {
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selectedLayer.setVisible(false);
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selectedLayer = layer;
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layer.setVisible(true);
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}
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return;
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}
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});
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};
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var switcherButton = document.createElement('button');
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var layerImg = document.createElement('img');
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layerImg.src = 'images/layers.svg';
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layerImg.style.width = '60%';
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switcherButton.appendChild(layerImg);
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var switcherHandle = function() {
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var el = document.getElementById('switcher');
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if (el.style.display === 'block') {
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el.style.display = 'none';
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} else {
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el.style.display = 'block';
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}
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};
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switcherButton.addEventListener('click', switcherHandle, false);
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switcherButton.addEventListener('touchstart', switcherHandle, false);
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var element = document.createElement('div');
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element.className = 'ol-switcher-button ol-unselectable ol-control';
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element.appendChild(switcherButton);
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var switcherControl = new ol.control.Control({
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element: element
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});
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map.addControl(switcherControl);
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}
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function cleanup() {
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map = undefined;
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layerTrack = undefined;
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layerMarkers = undefined;
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selectedLayer = undefined;
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olStyles = undefined;
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removeElementById('popup');
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removeElementById('switcher');
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document.getElementById('map-canvas').innerHTML = '';
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}
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function displayTrack(xml, update) {
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altitudes = {};
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var totalMeters = 0;
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var totalSeconds = 0;
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var points = [];
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var positions = xml.getElementsByTagName('position');
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var posLen = positions.length;
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for (var i = 0; i < posLen; i++) {
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var p = parsePosition(positions[i], i);
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totalMeters += p.distance;
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totalSeconds += p.seconds;
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p.totalMeters = totalMeters;
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p.totalSeconds = totalSeconds;
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// set marker
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setMarker(p, i, posLen);
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// update polyline
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var point = ol.proj.fromLonLat([p.longitude, p.latitude]);
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points.push(point);
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}
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var lineString = new ol.geom.LineString(points);
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var lineFeature = new ol.Feature({
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geometry: lineString,
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});
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layerTrack.getSource().addFeature(lineFeature);
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var extent = layerTrack.getSource().getExtent();
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map.getControls().forEach(function (el) {
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if (el instanceof ol.control.ZoomToExtent) {
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map.removeControl(el);
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}
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});
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if (update) {
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map.getView().fit(extent);
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var zoom = map.getView().getZoom();
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if (zoom > 20) {
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map.getView().setZoom(20);
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extent = map.getView().calculateExtent(map.getSize());
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}
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}
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var zoomToExtentControl = new ol.control.ZoomToExtent({
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extent: extent,
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label: getExtentImg()
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});
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map.addControl(zoomToExtentControl);
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updateSummary(p.timestamp, totalMeters, totalSeconds);
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if (p.tid != trackid) {
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trackid = p.tid;
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setTrack(trackid);
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}
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if (document.getElementById('bottom').style.display == 'block') {
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// update altitudes chart
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chart.clearChart();
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displayChart();
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}
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}
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function clearMap() {
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if (layerTrack) {
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layerTrack.getSource().clear();
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}
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if (layerMarkers) {
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layerMarkers.getSource().clear();
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}
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}
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function setMarker(p, i, posLen) {
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// marker
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var marker = new ol.Feature({
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geometry: new ol.geom.Point(ol.proj.fromLonLat([p.longitude, p.latitude]))
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});
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if (latest == 1) {
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var iconStyle = olStyles['red'];
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} else if (i == 0) {
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var iconStyle = olStyles['green'];
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} else if (i == posLen - 1) {
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var iconStyle = olStyles['red'];
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} else {
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var iconStyle = olStyles['white'];
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}
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marker.setStyle(iconStyle);
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marker.setId(i);
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marker.set('p', p);
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marker.set('posLen', posLen);
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layerMarkers.getSource().addFeature(marker);
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}
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function addChartEvent(chart, data) {
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google.visualization.events.addListener(chart, 'select', function () {
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var selection = chart.getSelection()[0];
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if (selection) {
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var id = data.getValue(selection.row, 0) - 1;
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var marker = layerMarkers.getSource().getFeatureById(id);
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var url = marker.get('src');
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var initStyle = marker.getStyle();
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var iconStyle = olStyles['gold'];
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marker.setStyle(iconStyle);
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altTimeout = setTimeout(function () { marker.setStyle(initStyle); }, 2000);
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}
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});
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}
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//20.597985430276808,52.15547181298076,21.363595171488573,52.33750879522563
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function getBounds() {
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var extent = map.getView().calculateExtent(map.getSize());
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var bounds = ol.proj.transformExtent(extent, 'EPSG:900913', 'EPSG:4326');
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var lon_sw = bounds[0];
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var lat_sw = bounds[1];
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var lon_ne = bounds[2];
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var lat_ne = bounds[3];
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return [lon_sw, lat_sw, lon_ne, lat_ne];
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}
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function zoomToExtent() {
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map.getView().fit(layerMarkers.getSource().getExtent())
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}
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function zoomToBounds(b) {
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var bounds = ol.proj.transformExtent(b, 'EPSG:4326', 'EPSG:900913');
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map.getView().fit(bounds);
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}
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function updateSize() {
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map.updateSize();
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}
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function getExtentImg() {
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var extentImg = document.createElement('img');
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extentImg.src = 'images/extent.svg';
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extentImg.style.width = '60%';
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return extentImg;
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}
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