map_mysql_php_leaflet/deletearea.php at master · SamyMwamba/map_mysql_php_leaflet · GitHub

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
139
140
141
142
<?php
 require_once("db.php");
 $arr = $conn->getAreasList();
?>
<!DOCTYPE html>
<html>
<head>
 <title>Delete an area</title>
 <script src='https://api.mapbox.com/mapbox-gl-js/v0.47.0/mapbox-gl.js'></script>
 <link href='https://api.mapbox.com/mapbox-gl-js/v0.47.0/mapbox-gl.css' rel='stylesheet' />
 <link rel="stylesheet" href="node_modules/leaflet/dist/leaflet.css"/>
 <script src="node_modules/leaflet/dist/leaflet.js"></script>
</head>
<body>
 <div id="map" style="width: 600px; height: 400px"></div><br />
 <form action="deleteareadb.php" method="post">
  <h1>Delete an area</h1>
  <table cellpadding="5" cellspacing="0" border="0">
   <tbody>
    <tr align="left" valign="top">
     <td align="left" valign="top">Area name</td>
     <td align="left" valign="top"><select id="area" name="area"><option value="0">Please choose an area</option><?php for( $i=0; $i < count($arr); $i++) { print '<option value="'.$arr[$i]['id'].'">'.$arr[$i]['name'].'</option>'; } ?></select></td>
    </tr>
    <tr align="left" valign="top">
     <td align="left" valign="top"></td>
     <td align="left" valign="top"><input type="submit" value="Delete"></td>
    </tr>
   </tbody>
  </table>
 </form>
 <script>
  var map = L.map('map').setView([-11.66494,27.4837274], 13);
  var polygon;
  var draggableAreaMarkers = new Array();

  L.tileLayer( 'https://api.mapbox.com/styles/v1/mapbox/streets-v10/tiles/{z}/{x}/{y}?access_token=pk.eyJ1Ijoic2FteW13YW1iYSIsImEiOiJjamtnd2FlbDE1M2l5M3dtbGY1Z2wzbzJjIn0.7dqO-EqSJpSyxyUniLkUNQ', {
  maxZoom: 18,
  attribution: 'Map data &copy; <a href="http://openstreetmap.org/"> OpenStreetMap </a> contributors, ' +
  '<a href="http://creativecommons.org/"> CC-BY-SA </a>, ' +
  'Imagery © <a href="http://mapbox.com">Mapbox</a>',
  id: 'examples.map-i875mjb7'
  }).addTo(map);

  function resetArea() {
   if(polygon != null) {
    map.removeLayer( polygon );
   }
   for(i=0; i < draggableAreaMarkers.length; i++) {
    map.removeLayer( draggableAreaMarkers[i] );
   }
   draggableAreaMarkers = new Array();
  }

  function addMarkerAreaPoint(latLng) {
   var areaMarker = L.marker( [latLng.lat, latLng.lng], { draggable: true, zIndexOffset: 900}).addTo(map);

   areaMarker.arrayId = draggableAreaMarkers.length;

   areaMarker.on('click', function() {
    map.removeLayer( draggableAreaMarkers[ this.arrayId ]);
    draggableAreaMarkers[ this.arrayId ] = "";
   });

   draggableAreaMarkers.push( areaMarker );
  }

  function drawArea() {
   if(polygon != null) {
    map.removeLayer( polygon );
   }

   var latLngAreas = new Array();

   for(i=0; i < draggableAreaMarkers.length; i++) {
    if(draggableAreaMarkers[i] != "") {
     latLngAreas.push( L.latLng( draggableAreaMarkers[ i ].getLatLng().lat, draggableAreaMarkers[ i ].getLatLng().lng));
    }
   }

   if(latLngAreas.length > 1) {
    // create a blue polygon from an array of LatLng points
    polygon = L.polygon( latLngAreas, { color: 'blue' }).addTo(map);
   }

   if(polygon != null) {
    // zoom the map to the polygon
    map.fitBounds( polygon.getBounds() );
   }
  }

  function getGeoPoints() {
   var points = new Array();
   for(var i=0; i <draggableAreaMarkers.length; i++) {
    if(draggableAreaMarkers[ i ] != "") {
     points[i] =  draggableAreaMarkers[ i ].getLatLng().lng + "," + draggableAreaMarkers[ i ].getLatLng().lat;
    }
   }
   $('#geo').val(points.join(','));
  }

  $( document ).ready(function() {
   $("#area").change(function() {
    resetArea();
    for(var i=0;i<arr.length;i++) {
     if(arr[i]['id'] == $('#area').val()) {
      arrangePoints(arr[i]['geolocations']);
      drawArea();
      break;
     }
    }
   });
  });

  function arrangePoints( geo ) {
   var linesPin = geo.split(",");

   var linesLat = new Array();
   var linesLng = new Array();

   for(i=0; i < linesPin.length;i++) {
    if(i % 2) {
     linesLat.push(linesPin[i]);
    }else{
     linesLng.push(linesPin[i]);
    }
   }

   var latLngLine = new Array();

   for(i=0; i < linesLng.length; i++) {
    latLngLine.push( L.latLng( linesLat[i], linesLng[i]));
   }

   for(i=0; i < latLngLine.length;i++) {
    addMarkerAreaPoint( latLngLine[i]);
   }
  }

  var arr = JSON.parse( '<?php echo json_encode($arr) ?>' );
 </script>
</body>
</html>