1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
var map;
var layer_mapnik;
var layer_tah;
var layer_markers;
var PI = Math.PI;
var latfield = '';
var lonfield = '';
var latfield_id='';
var lonfield_id='';
var centerlon = 10;
var centerlat = 52;
var zoom = 6;
function lon2merc(lon) {
return 20037508.34 * lon / 180;
}
function lat2merc(lat) {
lat = Math.log(Math.tan( (90 + lat) * PI / 360)) / PI;
return 20037508.34 * lat;
}
function merc2lon(lon) {
return lon*180/20037508.34;
};
function merc2lat(lat) {
return Math.atan(Math.exp(lat*PI/20037508.34))*360/PI-90;
};
OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {
defaultHandlerOptions: {
'single': true,
'double': false,
'pixelTolerance': 0,
'stopSingle': false,
'stopDouble': false
},
initialize: function(options) {
this.handlerOptions = OpenLayers.Util.extend(
{}, this.defaultHandlerOptions
);
OpenLayers.Control.prototype.initialize.apply(
this, arguments
);
this.handler = new OpenLayers.Handler.Click(
this, {
'click': this.trigger
}, this.handlerOptions
);
},
trigger: function(e) {
var lonlat = map.getLonLatFromViewPortPx(e.xy);
var lat=merc2lat(lonlat.lat);
var lon=merc2lon(lonlat.lon);
if(parent.document.getElementById(latfield_id)==null){
latfield=document.getElementById('osmlat');
}else{
latfield=parent.document.getElementById(latfield_id);
}
if(parent.document.getElementById(lonfield_id)==null){
lonfield=document.getElementById('osmlon');
}else{
lonfield=parent.document.getElementById(lonfield_id);
}
latfield.value = lat;
lonfield.value = lon;
}
});
function init(){
var field = window.name.substring(0, window.name.lastIndexOf("."));
if(parent.document.getElementById(field+".latfield")!=null){
latfield_id = parent.document.getElementById(field+".latfield").value;
document.getElementById('osm').style.display="none";
}
if(parent.document.getElementById(field+".lonfield")!=null){
lonfield_id = parent.document.getElementById(field+".lonfield").value;
}
if(parent.document.getElementById(field+".centerlat")!=null){
centerlat =parseFloat(parent.document.getElementById(field+".centerlat").value);
}
if(parent.document.getElementById(field+".centerlon")!=null){
centerlon = parseFloat(parent.document.getElementById(field+".centerlon").value);
}
if(parent.document.getElementById(field+".zoom")!=null){
zoom = parseFloat(parent.document.getElementById(field+".zoom").value);
}
}
function drawmap() {
OpenLayers.Lang.setCode('de');
var mapdiv=document.getElementById('map');
mapdiv.style.height=window.innerHeight+"px";
mapdiv.style.width=window.innerWidth+"px";
map = new OpenLayers.Map('map', {
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326"),
controls: [
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.PanZoomBar()],
maxExtent:
new OpenLayers.Bounds(-20037508.34,-20037508.34, 20037508.34, 20037508.34),
numZoomLevels: 18,
maxResolution: 156543,
units: 'meters'
});
layer_mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik");
map.addLayers([layer_mapnik]);
var y =lat2merc(centerlat);
var x =lon2merc(centerlon);
map.setCenter(new OpenLayers.LonLat(x, y), zoom);
// Check for geolocation support
if(navigator.geolocation){
navigator.geolocation.getCurrentPosition(function(position){
var y =lat2merc(position.coords.latitude);
var x =lon2merc(position.coords.longitude);
map.setCenter(new OpenLayers.LonLat(x, y), '17');
});
}
var click = new OpenLayers.Control.Click();
map.addControl(click);
click.activate();
}
|
