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/* phpTrackme
*
* Copyright(C) 2013 Bartek Fabiszewski (www.fabiszewski.net)
*
* This is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
// openlayers
var map;
var layerTrack;
var layerMarkers;
var lineStyle = {strokeColor: '#FF0000', strokeOpacity: 1, strokeWidth: 2};
var wgs84;
var mercator;
var loadedAPI = 'openlayers';
function init() {
wgs84 = new OpenLayers.Projection('EPSG:4326'); // from WGS 1984
mercator = new OpenLayers.Projection('EPSG:900913'); // to Mercator
var options = { controls: [
new OpenLayers.Control.ArgParser(), // default
new OpenLayers.Control.Attribution(), // default
new OpenLayers.Control.LayerSwitcher({'ascending':false}),
new OpenLayers.Control.Navigation(), // default
new OpenLayers.Control.PanZoomBar(),// do we need it?
new OpenLayers.Control.ScaleLine()
]
};
map = new OpenLayers.Map('map-canvas', options);
map.addLayer(new OpenLayers.Layer.OSM());
var position = new OpenLayers.LonLat(21.01,52.23).transform(wgs84, mercator);
var zoom = 8;
map.setCenter(position, zoom);
}
function displayTrack(xml,update) {
altitudes.length = 0;
var totalMeters = 0;
var totalSeconds = 0;
// init layer
layerTrack = new OpenLayers.Layer.Vector( 'Track' );
layerMarkers = new OpenLayers.Layer.Markers( 'Markers' );
var points = new Array();
var latlngbounds = new OpenLayers.Bounds();
var positions = xml.getElementsByTagName('position');
var posLen = positions.length;
for (var i=0; i<posLen; i++) {
var p = parsePosition(positions[i]);
totalMeters += p.distance;
totalSeconds += p.seconds;
p['totalMeters'] = totalMeters;
p['totalSeconds'] = totalSeconds;
// set marker
setMarker(p,i,posLen);
// update polyline
var point = new OpenLayers.Geometry.Point(p.longitude, p.latitude).transform(wgs84,mercator);
latlngbounds.extend(point);
points.push(point);
// save altitudes for chart
altitudes[i] = p.altitude;
}
var lineString = new OpenLayers.Geometry.LineString(points);
var lineFeature = new OpenLayers.Feature.Vector(lineString, null, lineStyle);
layerTrack.addFeatures([lineFeature]);
map.addLayer(layerTrack);
map.addLayer(layerMarkers);
if (update) {
map.zoomToExtent(latlngbounds);
if (i==1) {
// only one point, zoom out
map.zoomOut();
}
}
latestTime = p.dateoccured;
//polies.push(poly);
updateSummary(p.dateoccured,totalMeters,totalSeconds);
if (p.tid!=trackid) {
trackid=p.tid;
setTrack(trackid);
}
if (document.getElementById('bottom').style.display=='block') {
// update altitudes chart
chart.clearChart();
displayChart();
}
}
function clearMap(){
if (layerTrack){
layerTrack.removeAllFeatures();
}
if (layerMarkers){
layerMarkers.clearMarkers();
}
}
function setMarker(p,i,posLen) {
// marker
var lonLat = new OpenLayers.LonLat(p.longitude,p.latitude).transform(wgs84,mercator);
var size = new OpenLayers.Size(21, 25);
var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
if (latest==1) { var icon = new OpenLayers.Icon('http://www.openstreetmap.org/openlayers/img/marker.png',size,offset); }
else if (i==0) { var icon = new OpenLayers.Icon('http://www.openstreetmap.org/openlayers/img/marker-green.png',size,offset); }
else if (i==posLen-1) { var icon = new OpenLayers.Icon('http://www.openstreetmap.org/openlayers/img/marker.png',size,offset); }
else {
size = new OpenLayers.Size(12, 20);
offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
var icon = new OpenLayers.Icon('http://labs.google.com/ridefinder/images/mm_20_gray.png',size,offset);
}
var marker = new OpenLayers.Marker(lonLat,icon);
layerMarkers.addMarker(marker);
// popup
var content = '<div id="popup">'+
'<div id="pheader">'+lang_user+': '+p.username.toUpperCase()+'<br />'+lang_track+': '+p.trackname.toUpperCase()+
'</div>'+
'<div id="pbody">'+
'<div id="pleft"><b>'+lang_time+':</b> '+p.dateoccured+'<br />'+
((p.speed != null)?'<b>'+lang_speed+':</b> '+(p.speed.toKmH()*factor_kmh)+' '+unit_kmh+'<br />':'')+
((p.altitude != null)?'<b>'+lang_altitude+':</b> '+(p.altitude*factor_m).toFixed()+' '+unit_m+'<br />':'')+'</div>'+
((latest==0)?
('<div id="pright"><b>'+lang_ttime+':</b> '+p.totalSeconds.toHMS()+'<br />'+
'<b>'+lang_aspeed+':</b> '+((p.totalSeconds>0)?((p.totalMeters/p.totalSeconds).toKmH()*factor_kmh).toFixed():0)+' '+unit_kmh+'<br />'+
'<b>'+lang_tdistance+':</b> '+(p.totalMeters.toKm()*factor_km).toFixed(2)+' '+unit_km+'<br />'+'</div>'):'')+
'<div id="pfooter">'+lang_point+' '+(i+1)+' '+lang_of+' '+(posLen)+'</div>'+
'</div></div>';
marker.events.register("mousedown", marker, (function() {
return function() {
// remove popups
if (map.popups.length>0) {
for (var i = map.popups.length-1; i>=0; i-- ) {
map.removePopup(map.popups[i])
};
}
// show popup
var popup = new OpenLayers.Popup.FramedCloud("id "+(i+1),lonLat,null,content,icon,true);
map.addPopup(popup);
if (document.getElementById('bottom').style.display=='block') {
chart.setSelection([{row:i,column:null}]);
}
}
})());
}
function addChartEvent(chart) {
google.visualization.events.addListener(chart, 'select', function() {
var selection = chart.getSelection()[0];
if (selection) {
var id = selection.row;
var marker = layerMarkers.markers[id];
var url = marker.icon.url;
marker.setUrl('http://www.openstreetmap.org/openlayers/img/marker-gold.png');
altTimeout = setTimeout(function() { marker.setUrl(url); },2000);
}
});
}
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