JSFiddle - React, Tailwind, and code Playground

by Lawrence Ross

HTML

<script src="https://maps.googleapis.com/maps/api/js?sensor=false&amp;libraries=drawing,geometry"></script>
<script src="https://cdn.rawgit.com/geocodezip/geoxml3/f43a77ca/polys/geoxml3.js"></script>
<script src="https://cdn.rawgit.com/geocodezip/geoxml3/master/ProjectedOverlay.js"></script>
<div id="map_canvas" style="border: 2px solid #3872ac;"></div>
<input type="button" value="parse KML to map" onclick="setMapFromKML(document.getElementById('kmlString').value)" />
<textarea id="kmlString" style="width:100%; height:500px"></textarea>

CSS

html, body, #map_canvas {
    height: 500px;
    width: 500px;
    margin: 0px;
    padding: 0px
}

JavaScript

var geocoder;
var map;

function initialize() {
    map = new google.maps.Map(
    document.getElementById("map_canvas"), {
        center: new google.maps.LatLng(37.4419, -122.1419),
        zoom: 13,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    });
    document.getElementById("kmlString").value = '<kml><Document><Placemark id="Tester"><styleUrl>#transYellowPolyActive</styleUrl><name>Tester</name><Polygon><outerBoundaryIs><LinearRing><tessellate>0</tessellate><coordinates>6.30889892578125,53.28820543193896 6.29791259765625,53.28410053532493 6.233367919921875,53.21096737507053 6.5093994140625,53.19698389904798 6.50390625,53.27096221595853</coordinates></LinearRing></outerBoundaryIs></Polygon></Placemark><Placemark id="jahoor"><styleUrl>#transYellowPolyActive</styleUrl><name>jahoor</name><Polygon><outerBoundaryIs><LinearRing><tessellate>0</tessellate><coordinates>6.168479919433594,53.30318495818702 6.143760681152344,53.29579845109269 6.138267517089844,53.27281003615208 6.195259094238281,53.2707568976735 6.2010955810546875,53.29867113343524</coordinates></LinearRing></outerBoundaryIs></Polygon></Placemark></Document></kml>';
}
google.maps.event.addDomListener(window, "load", initialize);

var mapOverlays = [];
var geoXml = null;
//create a common infoWindow object
var infWindow = new google.maps.InfoWindow();
function setMapFromKML( kmlString ){
	    if( kmlString.length == 0 ){
		return false;
	    }
	    if (typeof geoXML3 == "undefined") { // check for include of geoxml3 parser
                            // http://code.google.com/p/geoxml3/ 
		alert("geoxml3.js not included");
		return;
	    }
	    if (!geoXml)
		geoXml = new geoXML3.parser({
			map: map,
			zoom: false,
			suppressInfoWindows: true
		    });

	    geoXml.parseKmlString( kmlString );
		
	    var tmpOverlay, ovrOptions;
	    for (var m=0; m < geoXml.docs[0].placemarks.length; m++) {
		if( geoXml.docs[0].placemarks[m].Polygon){
				
		    tmpOverlay =...