Using OpenLayers 4, I want to make a map giving the ability to draw shapes AND features. For this I want to combine the draw shapes example with the draw features example, both given on the website of OpenLayers.
I have succeeded in making a point, circle, or polygon from the draw Shapes example. When I select square or Box from the dropdown (both from the Draw features example), I get an error and the map pan around.
Here is my code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport">
<title>Draw shapes and features</title>
<link rel="stylesheet" href="https://openlayers.org/en/v4.5.0/css/ol.css" type="text/css">
<!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
<script src="https://openlayers.org/en/v4.5.0/build/ol.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<form class="form-inline">
<label>Geometry type </label>
<select id="type">
<option value="None">None</option>
<option value="Point">Point</option>
<option value="Circle">Circle</option>
<option value="Square">Square</option>
<option value="Box">Box</option>
<option value="Polygon">Polygon</option>
</select>
</form>
<script>
var raster = new ol.layer.Tile({
source: new ol.source.OSM()
});
var source = new ol.source.Vector({wrapX: false});
var vector = new ol.layer.Vector({
source: source
});
var map = new ol.Map({
layers: [raster, vector],
target: 'map',
view: new ol.View({
center: [-11000000, 4600000],
zoom: 4
})
});
var typeSelect = document.getElementById('type');
var draw; // global so we can remove it later
function addInteraction() {
var value = typeSelect.value;
if (value === 'None'){
} else {
var geometryFunction;
if(value !== 'None' || value !== 'Square' || value !=='Box'){
console.log(value)
draw = new ol.interaction.Draw({
source: source,
type: /** @type {ol.geom.GeometryType} */(typeSelect.value)
});
} else if(value === 'Square'){
console.log(value)
value = 'Circle';
geometryFunction = ol.interaction.Draw.createRegularPolygon(4);
draw = new ol.interaction.Draw({
source: source,
type: /** @type {ol.geom.GeometryType} */ (value),
geometryFunction: geometryFunction
});
} else if(value === 'Box'){
console.log(value)
value = 'Circle';
geometryFunction = ol.interaction.Draw.createBox();
draw = new ol.interaction.Draw({
source: source,
type: /** @type {ol.geom.GeometryType} */ (value),
geometryFunction: geometryFunction
});
};
map.addInteraction(draw)
};
};
/*Handle change event */
typeSelect.onchange = function() {
map.removeInteraction(draw);
addInteraction();
};
addInteraction();
</script>
</body>
</html>
See my jsFiddle to see my issue.
How do I combine the 'draw shapes' and 'draw features' in one map using OpenLayers?
