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<!doctype html>
<html lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Poly Splitting | Demo page for Google Maps JavaScript API v3 polysplitting library</title>
<meta name="description" content="Demo for splitting google maps polygons">
<meta name="author" content="Trent Mentink">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<!-- some basic styles for the demo -->
<style type="text/css">
html,
body {
margin: 0;
padding: 0;
border: 0;
height: 100%;
}
#map {
height: 100%;
width: 100%;
}
#controls {
position: fixed;
top: 10px;
right: 10px;
z-index: 1000;
}
.button {
background-color: #fff;
border-top: 1px solid rgba(255, 255, 255, 0.1);
border-bottom: 1px solid rgba(0, 0, 0, 0.1);
border-radius: 5px;
box-shadow: rgba(0,0,0,1) 0 1px 4px 0;
color: #333;
cursor: pointer;
font-size: 20px;
margin: 2.5px 0;
min-width: 150px;
padding: 8px;
text-align: center;
}
.button:hover {
background-color: #ebebeb;
box-shadow: inset 0 0 2px 2px rgba(0,0,0,.1), rgba(0,0,0,1) 0 1px 4px 0;
color: #000;
}
.hidden {
display: none;
}
</style>
</head>
<body>
<div id="map"></div>
<div id="controls">
<div id="btnSelection" class="button">Begin Selection</div>
<div id="btnSplit" class="button hidden">Split Polygons</div>
<div id="btnClear" class="button hidden">Clear All</div>
</div>
<!-- Google Maps API * including geometry library -->
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=geometry"></script>
<!-- Poly-Splitting Library -->
<script type="text/javascript" src="js/polysplitting.min.js"></script>
<!-- Demo JavaScript -->
<script type="text/javascript">
var map;
var coords = [{lat: 51.432674878507314, lng: -1.8486213684082031},{lat: 51.433390565845485, lng: -1.8473660945892334},{lat: 51.43307619989089, lng: -1.8458962440490723},{lat: 51.432066201014194, lng: -1.8454670906066895},{lat: 51.43133711510069, lng: -1.846604347229004},{lat: 51.43163811528248, lng: -1.8482029438018799}]
var demoPoly;
var selectionPoly;
var outerPoly;
var innerPoly;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: { lat: 51.4323, lng: -1.8470 },
zoom: 17,
mapTypeId: google.maps.MapTypeId.SATELLITE
});
demoPoly = new google.maps.Polygon({
paths: coords,
strokeColor: "#0000FF",
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: "#0000FF",
fillOpacity: 0.25,
zIndex: 0
});
demoPoly.setMap(map);
} // <-- initMap()
initMap();
// get references to the buttons
var btnSelection = document.getElementById('btnSelection');
var btnSplit = document.getElementById('btnSplit');
var btnClear = document.getElementById('btnClear');
btnSelection.onclick=function(){
// toggle the buttons
btnSelection.className = "button hidden";
btnSplit.className = "button";
btnClear.className = "button";
// create selection box polygon and store it in variable
selectionPoly = demoPoly.initSelection('validate');
};
btnSplit.onclick=function(){
// get an array containing the result of the split
// index: 0 = outer polygon
// index: 1 = inner polygon
// returns null if the split fails
var splitPolys = demoPoly.split(selectionPoly);
// clear any previous splits
if (outerPoly != null) {
outerPoly.setMap(null);
innerPoly.setMap(null);
}
if (splitPolys != null) {
outerPoly = new google.maps.Polygon({
paths: splitPolys[0],
strokeColor: "#0000FF",
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: "#0000FF",
fillOpacity: 0.25,
zIndex: 2
});
outerPoly.setMap(map);
innerPoly = new google.maps.Polygon({
paths: splitPolys[1],
strokeColor: "#FF0000",
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: "#FF0000",
fillOpacity: 0.5,
zIndex: 2
});
innerPoly.setMap(map);
}
};
btnClear.onclick=function(){
// toggle the buttons
btnSelection.className = "button";
btnSplit.className = "button hidden";
btnClear.className = "button hidden";
// clear the selection poly
if (selectionPoly != null) {
selectionPoly.setMap(null);
}
// clear the split polygons
if (outerPoly != null) {
outerPoly.setMap(null);
innerPoly.setMap(null);
}
};
</script>
</body>
</html>