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
131
132
133
134
135
136
137
138
|
/* Copyright (C) 2008 Étienne Loks <etienne.loks_AT_peacefrogsDOTnet>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 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 General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
See the file COPYING for details.
*/
/* map edit */
var map;
/* availaible map layers */
var layerMapnik = new OpenLayers.Layer.OSM.Mapnik('Mapnik');
var layerMarkers = new OpenLayers.Layer.Markers('POIs');
/* default size and offset for icon */
var size = new OpenLayers.Size(21, 25);
var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
var icon = new OpenLayers.Icon('http://www.openlayers.org/dev/img/marker.png', size, offset);
/* set a marker with a click on the map */
var setMarker = function (event){
event = event || window.event;
var lonlat = layerMarkers.getLonLatFromViewPortPx(event.xy);
putMarker(lonlat);
OpenLayers.Event.stop(event);
}
/* put the marker on the map and update latitude and longitude fields */
var putMarker = function (lonlat){
if (marker) {
layerMarkers.removeMarker(marker);
}
var marker = new OpenLayers.Marker(lonlat.clone(), icon);
layerMarkers.addMarker(marker);
lonlat = lonlat.clone().transform(map.getProjectionObject(),
epsg_display_projection);
document.getElementById('id_point').value = 'POINT(' + lonlat.lon +
' ' + lonlat.lat + ')';
document.getElementById('live_latitude').value = lonlat.lon;
document.getElementById('live_longitude').value = lonlat.lat;
}
/* main initialisation function */
function init(){
map = new OpenLayers.Map ('map_edit', {
controls:[new OpenLayers.Control.Navigation(),
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.Attribution()],
maxResolution: 156543.0399,
units: 'm',
projection: epsg_projection,
displayProjection: epsg_display_projection
} );
layerMarkers.setOpacity(0.5);
map.addLayers([layerMapnik, layerMarkers]);
map.events.register('click', map, setMarker);
/* zoom to the appropriate extent */
if (!zoomToCurrentExtent(map)){
map.setCenter(centerLonLat, 12);
}
}
/* code for drag'n drop : delayed for further version of openlayers */
/*
function init_b(){
init();
marker.events.register('mouseup', marker, releaseMarker);
marker.events.register('mousedown', marker, catchMarker);
marker.events.register('mouseover', marker, markerOver);
marker.events.register('mouseout', marker, markerOut);
map.events.register('mousemove', map, onMouseMove);
map.events.register('moveend', map, onMoveEnd);
}
var marker_catched = false;
function catchMarker(event){
marker_catched = true;
event = event || window.event;
OpenLayers.Event.stop(event);
}
function releaseMarker(event){
event = event || window.event;
if(marker_catched) {
marker_catched = false;
lonlat = layerMarkers.getLonLatFromViewPortPx(marker.icon.px);
marker.lonlat = lonlat;
document.getElementById('latitude').value = marker.lonlat.lat;
document.getElementById('longitude').value = marker.lonlat.lon;
}
OpenLayers.Event.stop(event);
}
function onMouseMove(event) {
event = event || window.event;
if (!marker_catched) {return;}
marker.icon.px = null;
marker.icon.moveTo(new OpenLayers.Pixel(event.xy.x + delta_x,
event.xy.y + delta_y + 20));
defLiveLatLon();
lonlat = layerMarkers.getLonLatFromViewPortPx(marker.icon.px).transform(epsg_projection, epsg_display_projection);
live_longitude.value = lonlat.lon;
live_latitude.value = lonlat.lat;
OpenLayers.Event.stop(event);
}
function onMoveEnd(event) {
event = event || window.event;
marker.icon.px = map.getPixelFromLonLat(marker.lonlat);
OpenLayers.Event.stop(event);
}
var markerOver = function (evt) {
document.body.style.cursor='pointer';
OpenLayers.Event.stop(evt);
};
var markerOut = function (evt) {
document.body.style.cursor='auto';
OpenLayers.Event.stop(evt);
};
*/
|
