paul121/demo.geojson

## demo.geojson

      
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              demo.geojson
            
          
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## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>farmOS Map</title>
    <style>
      html, body {
        margin: 0;
        height: 100%;
      }
      #map {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3&key=AIzaSyBEB1xUvz8LG_XexTVKv5ghXEPaCzF9eng"></script>
    <script src="./farmOS-map.js"></script>
    <script src="./mapbox.js"></script>
    <script>
      var options = {
        units: 'metric',
      }
      var myMap = farmOS.map.create("map", options);
      myMap.addBehavior("google");
      myMap.addBehavior("edit");
      myMap.addBehavior("measure", { layer: myMap.edit.layer });
      myMap.edit.wktOn("featurechange", console.log);
      myMap.edit.geoJSONOn("featurechange", console.log);

      function myStyleFunction(feature, resolution, style) {
        var areaId = +feature.get('id');
        console.log(resolution);

        const alpha = (resolution - 10000) / (100-10000);

        var defaultColor = `rgba(0, 0, 0, ${alpha})`;
        var color1 = `rgba(100, 100, 100, ${alpha})`;
        var color2 = `rgba(200, 200, 200, ${alpha})`;

        let color = defaultColor;
        if (areaId % 2 == 0) {
          color = color1
        }
        if (areaId % 2 == 1) {
          color = color2
        }

        return new style.Style({
          fill: new style.Fill({
            color
          }),
          stroke: new style.Stroke({
            color: [220,220,220,1],
            width: 1
          })
        });
      }

      var geojsonOpts = {
        title: 'demolayer',
        url: 'demo.geojson',
        styleFunction: myStyleFunction,
      }

      const geojsonLayer = myMap.addLayer('geojson', geojsonOpts);

      myMap.zoomToLayer(geojsonLayer);
    </script>
  </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width,initial-scale=1.0">
	<title>farmOS Map</title>
	<style>
	html, body {
	margin: 0;
	height: 100%;
	}
	#map {
	position: absolute;
	top: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
	}
	</style>
	</head>
	<body>
	<div id="map"></div>
	<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3&key=AIzaSyBEB1xUvz8LG_XexTVKv5ghXEPaCzF9eng"></script>
	<script src="./farmOS-map.js"></script>
	<script src="./mapbox.js"></script>
	<script>
	var options = {
	units: 'metric',
	}
	var myMap = farmOS.map.create("map", options);
	myMap.addBehavior("google");
	myMap.addBehavior("edit");
	myMap.addBehavior("measure", { layer: myMap.edit.layer });
	myMap.edit.wktOn("featurechange", console.log);
	myMap.edit.geoJSONOn("featurechange", console.log);

	function myStyleFunction(feature, resolution, style) {
	var areaId = +feature.get('id');
	console.log(resolution);

	const alpha = (resolution - 10000) / (100-10000);

	var defaultColor = `rgba(0, 0, 0, ${alpha})`;
	var color1 = `rgba(100, 100, 100, ${alpha})`;
	var color2 = `rgba(200, 200, 200, ${alpha})`;

	let color = defaultColor;
	if (areaId % 2 == 0) {
	color = color1
	}
	if (areaId % 2 == 1) {
	color = color2
	}

	return new style.Style({
	fill: new style.Fill({
	color
	}),
	stroke: new style.Stroke({
	color: [220,220,220,1],
	width: 1
	})
	});
	}

	var geojsonOpts = {
	title: 'demolayer',
	url: 'demo.geojson',
	styleFunction: myStyleFunction,
	}

	const geojsonLayer = myMap.addLayer('geojson', geojsonOpts);

	myMap.zoomToLayer(geojsonLayer);
	</script>
	</body>
	</html>