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Esri API example to draw arcs.
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=7,IE=9"> | |
| <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no"> | |
| <title></title> | |
| <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3/js/esri/css/esri.css"> | |
| <style> | |
| html, body, #map { | |
| height: 100%; width: 100%; margin: 0; padding: 0; | |
| } | |
| </style> | |
| <script src="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3/"></script> | |
| <script> | |
| var map, toolbar; | |
| require(["esri/map", "esri/toolbars/draw"], | |
| function() { | |
| map = new esri.Map("map", { | |
| basemap: "streets", | |
| center: [ 19.291, 48.343 ], | |
| zoom: 4 | |
| }); | |
| map.addLayer(new esri.layers.GraphicsLayer({ id: "arcs" })); | |
| dojo.connect(map, "onLoad", function() { | |
| toolbar = new esri.toolbars.Draw(map); | |
| toolbar.activate(esri.toolbars.Draw.POINT); | |
| dojo.connect(toolbar, "onDrawEnd", addToMap); | |
| }); | |
| function addToMap(geom) { | |
| map.graphics.add(new esri.Graphic( | |
| geom, | |
| new esri.symbol.SimpleMarkerSymbol() | |
| )); | |
| var total = map.graphics.graphics.length | |
| if ( ( total % 2) == 0 ) { | |
| // draw a geodesic line between the last two graphics | |
| var p1 = esri.geometry.webMercatorToGeographic(map.graphics.graphics[total-2].geometry); | |
| var p2 = esri.geometry.webMercatorToGeographic(map.graphics.graphics[total-1].geometry); | |
| console.log("p1 and p2: ", p1, p2); | |
| var geographicLine = new esri.geometry.Polyline(new esri.SpatialReference(4326)); | |
| geographicLine.addPath([p1, p2]); | |
| var line = esri.geometry.geodesicDensify(geographicLine, 5000); | |
| map.getLayer("arcs").add(new esri.Graphic( | |
| line, | |
| new esri.symbol.SimpleLineSymbol() | |
| )); | |
| console.log("added arc..."); | |
| } | |
| } | |
| } | |
| ); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| </body> | |
| </html> |
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