wp-gpx-maps/WP-GPX-Maps.js

529 lines
13 KiB
JavaScript

/*
WP-GPX-Maps
*/
var t;
var funqueue = [];
var infowindow
var wrapFunction = function(fn, context, params) {
return function() {
fn.apply(context, params);
};
}
function wpgpxmaps(params)
{
funqueue.push( wrapFunction(_wpgpxmaps, this, [params]));
unqueue();
}
function unqueue()
{
if ((google == undefined || google.maps == undefined || google.visualization == undefined))
{
t = setTimeout("unqueue()",200);
}
else
{
while (funqueue.length > 0) {
(funqueue.shift())();
}
}
}
function CustomMarker( map, latlng, src, img_w, img_h) {
this.latlng_ = latlng;
// Once the LatLng and text are set, add the overlay to the map. This will
// trigger a call to panes_changed which should in turn call draw.
this.setMap(map);
this.src_ = src;
this.img_w_ = img_w;
this.img_h_ = img_h;
}
CustomMarker.prototype = new google.maps.OverlayView();
CustomMarker.prototype.draw = function() {
var me = this;
// Check if the div has been created.
var div = this.div_;
if (!div) {
// Create a overlay text DIV
div = this.div_ = document.createElement('DIV');
div.style.cssText = "border:1px solid #fff;position:absolute;cursor:pointer;margin:0;background:url('"+this.src_+"') center;width:"+(this.img_w_/3)+"px;height:"+(this.img_h_/3)+"px;";
div.setAttribute("lat",this.latlng_.lat());
div.setAttribute("lon",this.latlng_.lng());
google.maps.event.addDomListener(div, "click", function(event) {
google.maps.event.trigger(me, "click",div);
});
google.maps.event.addDomListener(div, "mouseover", function(event) {
var _t = div.style.top.replace('px','');
var _l = div.style.left.replace('px','');
jQuery(div).animate({
height: me.img_h_,
width : me.img_w_,
top : _t - (me.img_h_ / 3),
left : _l - (me.img_w_ / 3)
}, 100);
});
google.maps.event.addDomListener(div, "mouseout", function(event) {
jQuery(div).animate({
height: me.img_h_ / 3,
width: me.img_w_ / 3,
top : me.orig_top,
left : me.orig_left
}, 100);
});
// Then add the overlay to the DOM
var panes = this.getPanes();
panes.overlayImage.appendChild(div);
}
// Position the overlay
var point = this.getProjection().fromLatLngToDivPixel(this.latlng_);
if (point) {
div.style.left = point.x + 'px';
div.style.top = point.y + 'px';
this.orig_left = point.x;
this.orig_top = point.y;
}
};
CustomMarker.prototype.remove = function() {
// Check if the overlay was on the map and needs to be removed.
if (this.div_) {
this.div_.parentNode.removeChild(this.div_);
this.div_ = null;
}
};
function _wpgpxmaps(params)
{
var targetId = params.targetId;
var mapType = params.mapType;
var mapData = params.mapData;
var graphData = params.graphData;
var waypoints = params.waypoints;
var unit = params.unit;
var unitspeed = params.unitspeed;
var color1 = params.color1;
var color2 = params.color2;
var color3 = params.color3;
var chartFrom1 = params.chartFrom1;
var chartTo1 = params.chartTo1;
var chartFrom2 = params.chartFrom2;
var chartTo2 = params.chartTo2;
var startIcon = params.startIcon;
var endIcon = params.endIcon;
var currentIcon = params.currentIcon;
var el = document.getElementById("wpgpxmaps_" + targetId);
var el_map = document.getElementById("map_" + targetId);
var el_chart = document.getElementById("chart_" + targetId);
var mapWidth = el_map.style.width;
switch (mapType)
{
case 'TERRAIN': { mapType = google.maps.MapTypeId.TERRAIN; break;}
case 'SATELLITE': { mapType = google.maps.MapTypeId.SATELLITE; break;}
case 'ROADMAP': { mapType = google.maps.MapTypeId.ROADMAP; break;}
default: { mapType = google.maps.MapTypeId.HYBRID; break;}
}
var mapOptions = {
mapTypeId: mapType,
scrollwheel: false
};
var map = new google.maps.Map(el_map, mapOptions);
var bounds = new google.maps.LatLngBounds();
// Print WayPoints
if (waypoints != '')
{
var image = new google.maps.MarkerImage('http://maps.google.com/mapfiles/ms/micons/flag.png',
new google.maps.Size(32, 32),
new google.maps.Point(0,0),
new google.maps.Point(16, 32)
);
var shadow = new google.maps.MarkerImage('http://maps.google.com/mapfiles/ms/micons/flag.shadow.png',
new google.maps.Size(59, 32),
new google.maps.Point(0,0),
new google.maps.Point(16, 32)
);
for (i=0; i < waypoints.length; i++)
{
addWayPoint(map, image, shadow, waypoints[i][0], waypoints[i][1], waypoints[i][2], waypoints[i][3]);
}
}
// Print Images
var divImages = document.getElementById("ngimages_"+targetId);
divImages.style.display='block';
divImages.style.position='absolute';
divImages.style.left='-500px';
var img_spans = divImages.getElementsByTagName("span");
if (img_spans.length > 0)
{
var bb = new google.maps.LatLngBounds();
for (var i = 0; i < img_spans.length; i++) {
var imageLat = img_spans[i].getAttribute("lat");
var imageLon = img_spans[i].getAttribute("lon");
var imageImg = img_spans[i].getElementsByTagName('img')[0];
var imageUrl = imageImg.getAttribute("src");
var img_w = imageImg.clientWidth;
var img_h = imageImg.clientHeight;
var p = new google.maps.LatLng(imageLat, imageLon);
bounds.extend(p);
var mc = new CustomMarker(map, p, imageUrl, img_w, img_h );
google.maps.event.addListener(mc, "click", function(div) {
var lat = div.getAttribute("lat");
var lon = div.getAttribute("lon");
var a = getClosestImage(lat,lon,targetId).childNodes[0];
if (a)
{
a.click();
}
});
}
}
// Print Track
if (mapData != '')
{
var points = [];
for (i=0; i < mapData.length; i++)
{
var p = new google.maps.LatLng(mapData[i][0], mapData[i][1]);
points.push(p);
bounds.extend(p);
}
if (startIcon != '')
{
var startIconImage = new google.maps.MarkerImage(startIcon);
var startMarker = new google.maps.Marker({
position: points[0],
map: map,
title: "Start",
animation: google.maps.Animation.DROP,
icon: startIconImage,
zIndex: 10
});
}
if (endIcon != '')
{
var endIconImage = new google.maps.MarkerImage(endIcon);
var startMarker = new google.maps.Marker({
position: points[ points.length -1 ],
map: map,
title: "Start",
animation: google.maps.Animation.DROP,
icon: endIconImage,
zIndex: 10
});
}
var poly = new google.maps.Polyline({
path: points,
strokeColor: color1,
strokeOpacity: .7,
strokeWeight: 4
});
poly.setMap(map);
var first = getItemFromArray(mapData,0)
if (currentIcon == '')
{
currentIcon = "http://maps.google.com/mapfiles/kml/pal4/icon25.png";
}
var current = new google.maps.MarkerImage(currentIcon,
new google.maps.Size(32, 32),
new google.maps.Point(0,0),
new google.maps.Point(16, 16)
);
var marker = new google.maps.Marker({
position: new google.maps.LatLng(first[0], first[1]),
title:"Start",
icon: current,
map: map,
zIndex: 10
});
google.maps.event.addListener(poly,'mouseover',function(event){
if (marker)
{
marker.setPosition(event.latLng);
marker.setTitle("Current Position");
if ( chart )
{
var l1 = event.latLng.lat();
var l2 = event.latLng.lng();
var ci = getClosestIndex(mapData,l1,l2);
var r = chart.setSelection([{'row': parseInt(ci) + 1}]);
}
}
});
}
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
// Print Graph
if (graphData!= '')
{
var numberFormat1 = "#,###m";
var numberFormat2 = "#,###m";
if (unit=="1")
{
numberFormat1 = "#,##0.#mi";
numberFormat2 = "#,###ft";
}
else if (unit=="2")
{
numberFormat1 = "#,###0.#km";
numberFormat2 = "#,###m";
}
var showSpeed = (graphData[0].length == 3);
var data = new google.visualization.DataTable();
data.addColumn('number', "Distance");
data.addColumn('number', "Altitude");
if (!isNumeric(chartFrom1))
chartFrom1 = null;
if (!isNumeric(chartTo1))
chartTo1 = null;
if (!isNumeric(chartFrom2))
chartFrom2 = null;
if (!isNumeric(chartTo2))
chartTo2 = null;
var options = { curveType: "function",
strictFirstColumnType: true,
hAxis : {format : numberFormat1},
vAxis : {format : numberFormat2},
legend : {position : 'none'},
chartArea: {left:50,top:10,width:"100%",height:"75%"},
colors:[color2,color3],
tooltip: { showColorCode: true},
fontSize:11
};
if ( chartFrom1 != null || chartTo1 != null )
{
options.vAxis.viewWindowMode = "explicit";
options.vAxis.viewWindow = { min : chartFrom1, max : chartTo1};
}
if (showSpeed)
{
var speedFormat="";
if (unitspeed == '2') // miles/h
{
speedFormat = "#,##0.#mi/h";
}
else if (unitspeed == '1') // km/h
{
speedFormat = "#,##0.#km/h";
}
else
{
speedFormat = "#,##0.#m/s";
}
data.addColumn('number', "Speed");
options.vAxes = { 0:{format : numberFormat2, targetAxisIndex : 0},
1:{format : speedFormat, targetAxisIndex : 1}
};
if ( chartFrom1 != null || chartTo1 != null )
{
options.vAxes[0].viewWindowMode = "explicit";
options.vAxes[0].viewWindow = { min : chartFrom1, max : chartTo1};
}
if ( chartFrom2 != null || chartTo2 != null )
{
options.vAxes[1].viewWindowMode = "explicit";
options.vAxes[1].viewWindow = { min : chartFrom2, max : chartTo2};
}
options.series = { 0:{color: color2, visibleInLegend: true, targetAxisIndex : 0},
1:{color: color3, visibleInLegend: true, targetAxisIndex : 1}
};
options.chartArea.width="85%";
//alert(el_chart.clientWidth);
}
data.addRows(graphData);
var chart = new google.visualization.AreaChart(el_chart);
chart.draw(data, options);
google.visualization.events.addListener(chart, 'onmouseover', function (e) {
var r = e['row'];
chart.setSelection([e]);
if (marker)
{
var point = getItemFromArray(mapData,r)
marker.setPosition(new google.maps.LatLng(point[0],point[1]));
marker.setTitle("Current Position");
}
});
if( mapWidth = "100%")
{
var resizeChart = function(){
el_chart.style.width = el_chart.clientWidth + "px";
chart.draw(data, options);
};
google.maps.event.addListener(map, "idle", resizeChart);
}
//google.visualization.events.addListener(chart, 'onmouseout', function (e) {
//chart.setSelection([e]);
//});
}
else
{
el_chart.style.display='none';
}
}
function addWayPoint(map, image, shadow, lat, lon, title, descr)
{
var p = new google.maps.LatLng(lat, lon);
var m = new google.maps.Marker({
position: p,
map: map,
title: title,
animation: google.maps.Animation.DROP,
shadow: shadow,
icon: image,
zIndex: 5
});
google.maps.event.addListener(m, 'mouseover', function() {
if (infowindow)
{
infowindow.close();
}
var cnt = '';
if (title=='')
{
cnt = "<center>" + descr + "</center>";
}
else
{
cnt = "<b>" + title + "</b></br />" + descr;
}
infowindow = new google.maps.InfoWindow({ content: cnt});
infowindow.open(map,m);
});
}
function getItemFromArray(arr,index)
{
try
{
return arr[index];
}
catch(e)
{
return [0,0];
}
}
function getClosestIndex(points,lat,lon)
{
var dd=10000;
var ii=0;
for (i=0; i < points.length; i++)
{
var d = dist(points[i][0], points[i][1], lat, lon);
if ( d < dd )
{
ii = i;
dd = d;
}
}
return ii;
}
function getClosestImage(lat,lon,targetId)
{
var dd=10000;
var img;
var divImages = document.getElementById("ngimages_"+targetId);
var img_spans = divImages.getElementsByTagName("span");
for (var i = 0; i < img_spans.length; i++) {
var imageLat = img_spans[i].getAttribute("lat");
var imageLon = img_spans[i].getAttribute("lon");
var d = dist(imageLat, imageLon, lat, lon);
if ( d < dd )
{
img = img_spans[i];
dd = d;
}
}
return img;
}
function isNumeric(input){
var RE = /^-{0,1}\d*\.{0,1}\d+$/;
return (RE.test(input));
}
function dist(lat1,lon1,lat2,lon2)
{
// mathematically not correct but fast
var dLat = (lat2-lat1);
var dLon = (lon2-lon1);
return Math.sqrt(dLat * dLat + dLon * dLon);
}