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1
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function draw_map() {
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2
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3
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var zcontrol;
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4
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if (typeof zoom_control != 'undefined') {
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5
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switch (zoom_control) {
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6
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case 'full':
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7
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zcontrol = new OpenLayers.Control.PanZoomBar();
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8
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break;
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9
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case 'light':
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10
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default:
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11
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zcontrol = new OpenLayers.Control.Zoom();
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12
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}
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13
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} else zcontrol = new OpenLayers.Control.Zoom();
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14
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15
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var map = new OpenLayers.Map({
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16
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div: "map",
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17
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zoom: typeof zoom == 'undefined' ? 10:zoom,
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18
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controls:[zcontrol,
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19
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new OpenLayers.Control.KeyboardDefaults(),
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20
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new OpenLayers.Control.Navigation()],
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21
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});
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22
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23
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if (typeof scale_line != 'undefined' && scale_line == true) {
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24
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map.addControl(new OpenLayers.Control.ScaleLine({bottomOutUnits: ''}));
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25
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}
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26
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27
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map.addLayer(new OpenLayers.Layer.OSM());
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28
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29
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if (typeof contour != 'undefined') contours = [contour];
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30
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if (typeof contours == 'undefined') contours = new Array;
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31
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for (var i = 0; i < contours.length; i++) {
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32
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var ct = contours[i];
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33
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var cntr = new OpenLayers.Layer.Vector("contour_"+i, {
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34
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strategies: [new OpenLayers.Strategy.Fixed()],
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35
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projection: new OpenLayers.Projection("EPSG:4326"),
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36
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styleMap: new OpenLayers.StyleMap({
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37
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strokeWidth: ct.strokeWidth,
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strokeColor: ct.strokeColor,
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39
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strokeOpacity: ct.strokeOpacity,
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40
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fillOpacity: ct.fillOpacity,
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41
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fillColor: ct.fillColor
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42
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}),
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43
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protocol: new OpenLayers.Protocol.HTTP({
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44
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url: ct.url,
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45
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format: new OpenLayers.Format.OSM(),
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46
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}),
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47
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eventListeners: {
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48
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"featuresadded": function () {
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49
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if (typeof fit_contours == 'undefined' || fit_contours) this.map.zoomToExtent(this.getDataExtent());
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50
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}
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51
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}
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52
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});
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53
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map.addLayer(cntr);
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54
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}
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55
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56
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if (typeof ref_point != 'undefined') ref_points = [ref_point];
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57
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if (typeof ref_points != 'undefined') {
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58
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refpts_layer = new OpenLayers.Layer.Vector("ref_points", {projection: "EPSG:4326"});
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59
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var selectMarkerControl = new OpenLayers.Control.SelectFeature(refpts_layer, {
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60
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onSelect: function(feature) {
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61
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var le_popup = new OpenLayers.Popup.FramedCloud("Popup",
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62
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feature.attributes.lonlat,
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63
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null,
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64
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feature.attributes.description,
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65
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null,
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66
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true);
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67
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68
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feature.popup = le_popup;
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69
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map.addPopup(le_popup);
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70
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},
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71
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onUnselect: function(feature) {
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72
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73
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map.removePopup(feature.popup);
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74
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feature.popup.destroy();
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75
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feature.popup = null;
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76
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},
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77
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multiple: true,
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78
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toggle: true,
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79
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});
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80
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map.addControl(selectMarkerControl);
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81
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82
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selectMarkerControl.activate();
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83
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map.addLayer(refpts_layer);
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84
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85
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86
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if (typeof def_points_style == 'undefined') def_points_style = {};
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87
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var def_pt = {
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88
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icon_url: def_points_style.icon_url,
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89
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icon_width: def_points_style.icon_width,
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90
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icon_height: def_points_style.icon_height,
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91
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showPopup: def_points_style.showPopup ? def_points_style.showPopup:false,
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92
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icon_shiftX: def_points_style.icon_shiftX ? def_points_style.icon_shiftX:0,
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93
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icon_shiftY: def_points_style.icon_shiftY ? def_points_style.icon_shiftY:0,
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94
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opacity: def_points_style.opacity ? def_points_style.opacity:1}
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95
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96
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for (var i = 0; i < ref_points.length; i++) {
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97
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var pt = ref_points[i];
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98
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var ptGeo = new OpenLayers.Geometry.Point(pt.lon, pt.lat);
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99
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ptGeo.transform("EPSG:4326", map.getProjectionObject());
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100
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var LonLat = new OpenLayers.LonLat(pt.lon, pt.lat).transform("EPSG:4326", map.getProjectionObject());
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101
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map.setCenter(LonLat);
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102
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var laFeature = new OpenLayers.Feature.Vector(ptGeo,
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103
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{description:pt.descr, lonlat: LonLat},
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104
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{externalGraphic: pt.icon_url? pt.icon_url:def_pt.icon_url,
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105
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graphicWidth: pt.icon_width? pt.icon_width:def_pt.icon_width,
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106
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graphicHeight: pt.icon_height? pt.icon_height:def_pt.icon_height,
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107
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graphicXOffset: pt.icon_shiftX? pt.icon_shiftX:def_pt.icon_shiftX,
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108
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graphicYOffset: pt.icon_shiftY? pt.icon_shiftY:def_pt.icon_shiftY,
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109
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graphicOpacity: pt.opacity? pt.opacity:def_pt.opacity,
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110
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title: pt.title? pt.title :''});
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111
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if (i == 0) elFeature = laFeature;
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112
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refpts_layer.addFeatures(laFeature);
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113
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if (pt.showPopup) selectMarkerControl.select(laFeature);
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114
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}
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115
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if (typeof zoom == 'undefined') map.zoomToExtent(refpts_layer.getDataExtent());
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116
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}
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117
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118
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if (typeof ref_line != 'undefined') ref_lines = [ref_line];
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119
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if (typeof ref_lines != 'undefined') {
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120
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if (typeof def_line_style == 'undefined') def_line_style = {};
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121
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var def_ln = {
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122
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width: def_line_style.width? def_line_style.width:2,
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123
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color: def_line_style.color? def_line_style.color:'#00F',
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124
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length: def_line_style.length? def_line_style.length:20000,
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125
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opacity: def_line_style.opacity? def_line_style.opacity:1}
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126
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127
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var lineLayer = new OpenLayers.Layer.Vector("ref_lines");
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128
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map.addControl(new OpenLayers.Control.DrawFeature(lineLayer, OpenLayers.Handler.Path));
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129
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for (var i = 0; i < ref_lines.length; i++) {
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130
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var ln = ref_lines[i];
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131
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if(isNaN(ln.cap)) {
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132
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var pt = {lon: ln.lon2, lat: ln.lat2};
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133
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} else {
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134
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var LonLat = new OpenLayers.LonLat(ln.lon1, ln.lat1);
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135
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var dist = ln.length? ln.length:def_ln.length;
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136
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var pt = OpenLayers.Util.destinationVincenty(LonLat, ln.cap, dist);
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137
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}
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138
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var points = new Array(
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139
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new OpenLayers.Geometry.Point(ln.lon1, ln.lat1),
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140
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new OpenLayers.Geometry.Point(pt.lon, pt.lat)
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141
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);
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142
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points[0].transform("EPSG:4326", map.getProjectionObject());
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143
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points[1].transform("EPSG:4326", map.getProjectionObject());
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144
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var line = new OpenLayers.Geometry.LineString(points);
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145
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146
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var style = {
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147
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strokeColor: ln.color? ln.color:def_ln.color,
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148
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strokeWidth: ln.width? ln.width:def_ln.width,
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149
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strokeOpacity: ln.width? ln.opacity:def_ln.opacity
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150
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};
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151
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152
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var lineFeature = new OpenLayers.Feature.Vector(line, null, style);
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153
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lineLayer.addFeatures([lineFeature]);
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154
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}
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155
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map.addLayer(lineLayer);
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156
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}
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157
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if (typeof get_lon_lat != 'undefined' && get_lon_lat) {
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158
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map.events.register("click", map, function(e) {
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159
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var position = map.getLonLatFromViewPortPx(e.xy);
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160
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position.transform(map.getProjectionObject(), new OpenLayers.Projection("EPSG:4326"));
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161
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alert(position.lon.toFixed(3) + ', ' + position.lat.toFixed(3));
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162
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});
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163
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}
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164
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}
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165
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166
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if (typeof addLoadEvent == 'function') addLoadEvent(draw_map);
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167
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else window.onload = draw_map;
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