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Snap grid options.html
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Snap grid options.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Snap grid options - Azure Maps Web SDK Samples</title>
<meta charset="utf-8" />
<link rel="shortcut icon" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<meta name="description" content="This sample shows how the different options of the snap grid manager modify how the snapping experience works." />
<meta name="keywords" content="Microsoft maps, map, gis, API, SDK, drawing tools, paint, events" />
<meta name="author" content="Microsoft Azure Maps" /><meta name="version" content="1.0" />
<meta name="screenshot" content="screenshot.jpg" />
<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
<link href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/3/atlas.min.css" rel="stylesheet" />
<script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/3/atlas.min.js"></script>
<!-- Add references to the Azure Maps Map Drawing Tools JavaScript and CSS files. -->
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.css" type="text/css" />
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<script>
var map, snapGrid;
function getMap() {
//Initialize a map instance.
map = new atlas.Map('myMap', {
center: [-122.33, 47.6],
zoom: 12,
view: 'Auto',
//Add authentication details for connecting to Azure Maps.
authOptions: {
//Use Microsoft Entra ID authentication.
authType: 'anonymous',
clientId: 'e6b6ab59-eb5d-4d25-aa57-581135b927f0', //Your Azure Maps client id for accessing your Azure Maps account.
getToken: function (resolve, reject, map) {
//URL to your authentication service that retrieves an Microsoft Entra ID Token.
var tokenServiceUrl = 'https://samples.azuremaps.com/api/GetAzureMapsToken';
fetch(tokenServiceUrl).then(r => r.text()).then(token => resolve(token));
}
//Alternatively, use an Azure Maps key. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
//authType: 'subscriptionKey',
//subscriptionKey: '[YOUR_AZURE_MAPS_KEY]'
}
});
// Wait until the map resources are ready.
map.events.add('ready', function () {
snapGrid = new atlas.drawing.SnapGridManager(map, {
showGrid: true
});
// Use a draggable marker as a method to test snapping.
var marker = new atlas.HtmlMarker({
draggable: true,
position: map.getCamera().center
});
map.markers.add(marker);
map.events.add('dragend', marker, (e) => {
var snappedPosition = snapGrid.snapPositions([e.target.getOptions().position])[0];
e.target.setOptions({
position: snappedPosition
});
});
// Using drawing tools in combination with snap grid.
drawingManager = new atlas.drawing.DrawingManager(map, {
toolbar: new atlas.control.DrawingToolbar({
position: 'top-right',
style: 'light'
})
});
// Monitor for when a line drawing has been completed.
map.events.add('drawingcomplete', drawingManager, snapToGrid);
// Add a style control to the map.
map.controls.add(new atlas.control.StyleControl({
mapStyles: 'all'
}), {
position: 'top-left'
});
});
}
function snapToGrid(shape) {
// Exit drawing mode.
drawingManager.setOptions({ mode: 'idle' });
snapGrid.snapShape(shape);
}
function enabled(elm) {
snapGrid.setOptions({
enabled: elm.checked
});
}
function removeDuplicates(elm) {
snapGrid.setOptions({
removeDuplicates: elm.checked
});
}
function showGrid(elm) {
snapGrid.setOptions({
showGrid: elm.checked
});
}
function simplify(elm) {
snapGrid.setOptions({
simplify: elm.checked
});
}
function setResolution(elm){
snapGrid.setOptions({
resolution: parseFloat(elm.value)
});
}
function editStrokeColor(elm) {
snapGrid.getGridLayer().setOptions({
strokeColor: elm.value
});
}
</script>
<style>
.sidePanel {
width: 350px;
height: 580px;
float: left;
margin-right: 10px;
}
#myMap {
position: relative;
width: calc(100% - 360px);
min-width: 290px;
height: 600px;
float: left;
}
</style>
</head>
<body >
<div class="sidePanel">
<fieldset style="width:320px;margin-bottom:10px;">
<legend>Snap grid options</legend>
This sample shows how the different options of the snap grid manager modify how the snapping experience works.
<table>
<tr title="Specifies if the snapping functions are enabled. If not, the original shapes and positions will be returned.">
<td>Enabled:</td>
<td><input type="checkbox" checked="checked" title="Enabled" /></td>
</tr>
<tr title="Specifies duplicate sequential positions should be removed when snapping.">
<td>Remove duplicates:</td>
<td><input type="checkbox" checked="checked" title="Remove duplicates" /></td>
</tr>
<tr title="Specifies the size of the snapping grid in pixels. The grid will be square and relative to the nearest integer zoom level. The grid will scale by a factor of 2 relative to physical real-world area with each zoom level.">
<td>Resolution:</td>
<td>
<form >
<input type="range" id="Resolution" value="15" min="1" max="100" step="1" title="Resolution" />
<output name="res" for="Resolution">15</output>
</form>
</td>
</tr>
<tr title="Specifies if grid lines should be displayed on the map.">
<td>Show grid:</td>
<td><input type="checkbox" checked="checked" title="Show grid" /></td>
</tr>
<tr title="Specifies if a Douglas-Peucker simplification should occur while snapping to create smoother lines.">
<td>Simplify:</td>
<td><input type="checkbox" checked="checked" title="Simplify" /></td>
</tr>
</table>
<br />
Edit the grid line styles by retrieving the underlying line layer using the <b>getGridLayer</b> function.
The following is an example of how to edit the stroke color.
<table>
<tr title="The color used to outline the line.">
<td>Stroke Color:</td>
<td><input type="color" title="Stroke Color" id="StrokeColor" value="#c3a77e" /></td>
</tr>
</table>
</fieldset>
</div>
<div id="myMap"></div>
</body>
</html>
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