An Open Source library for multi-touch, WebGL powered applications.
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<!DOCTYPE html>
<html lang="en" class="dark-mode">
<head>
<meta charset="UTF-8" />
<title>MapViewport</title>
<script src="../../3rdparty/highlight/highlight.pack.js"></script>
<link rel="stylesheet" href="../../../fonts/material-icon-font/material-icons.css">
<link rel='stylesheet' href='../../3rdparty/highlight/styles/vs2015.css'>
<link rel='stylesheet' href='../../../css/doctest.css'>
<script src="../../../dist/iwmlib.3rdparty.js"></script>
<script src="../../../dist/iwmlib.js"></script>
<script src="../../../dist/iwmlib.pixi.js"></script>
<style>
.controls {
display: flex;
}
</style>
</head>
<body onload="Doctest.run()">
<h1>MapViewport</h1>
<p>
The MapViewport works under the hood of a map layer to track the informations about the current focus point and
zoom position.
This is important to maintain the same view when maps are changed.
</p>
<canvas id="canvas"></canvas>
<div id="mapControl"></div>
<div id="cityControl" class="controls"></div>
<p><strong>WHAT TO SEE:</strong> The map should focus Paris.</p>
<script>
let osmConfig = {
"projection": "mercator",
"type": "deepzoom",
"tiles": {
"tileSize": 256,
"format": "png",
"overlap": 0,
"type": "map",
"height": 1024,
"width": 1024,
"path": "../assets/maps/osm",
"urlTileTemplate": "{path}/{level}/{row}/{column}.{format}"
}
}
let testConfig = {
"projection": "mercator",
"type": "deepzoom",
"tiles": {
"tileSize": 128,
"format": "jpg",
"overlap": 0,
"type": "map",
"height": 4096,
"width": 4096,
"path": "../assets/maps/test",
"urlTileTemplate": "{path}/{level}/{row}/{column}.{format}"
}
}
</script>
<script class="doctest">
let capitals = {
london: { x: 51.5, y: -0.083333 },
rome: { x: 41.9, y: 12.483333 },
madrid: { x: 40.4, y: -3.683333 },
paris: { x: 48.833986, y: 2.346989 }
}
// You may define a focus point ...
let focus = capitals.paris
// ... and a zoom level.
let zoom = 1
// Name has to be app (like all other PIXIApps).
const app = (window.app = new MapApp({
focus,
zoom,
view: canvas,
coordsLogging: true,
width: 512,
height: 512
}))
// As map an image of europe is used.
let europe = '../assets/maps/pixabay/europe.jpg'
//Preload all required sprites for the image map.
app.loadSprites([europe], sprites => ready(sprites), {
resolutionDependent: false
})
// The mapdata object contains informations,
// how the displayed map has to be interpreted.
// e.g. which projection is used or how the
// image is clipped.
let europeData = new MapData(new Projection.Mercator(), {
clip: {
min: { x: 32.863294, y: -18.58 },
max: { x: 57.467973, y: 44.277158 }
}
})
function ready(sprites) {
const cover = true
// When resources are loaded, the ImageMap can be instantiated.
let imageMap = new ImageMap(sprites.get(europe), europeData, {
coordsLogging: true,
maxScale: 1,
cover
})
let testMapData = new DeepZoomMapData(new Projection.Mercator(), testConfig.tiles, {
app
})
let testMap = new DeepZoomMap(testMapData, Object.assign({}, testConfig.tiles, { app }), { cover })
app.addMap("test", testMap)
let osmMapData = new DeepZoomMapData(new Projection.Mercator(), osmConfig.tiles, {
app
})
let deepZoomMap = new DeepZoomMap(osmMapData, Object.assign({}, osmConfig.tiles, { app }), { cover })
app.addMap("osm", deepZoomMap)
// Finally apply the map to the MapApp
app.setMap('europe', imageMap)
// The app requires a map before beeing able to run.
// So start the app here.
app.setup().run()
for (let [key, val] of Object.entries(app.mapList.maps)) {
let mapBtn = document.createElement("button")
mapBtn.innerText = key
mapBtn.addEventListener("click", () => {
app.mapLayer.changeMap(val)
})
mapControl.appendChild(mapBtn)
}
}
for (let [key, val] of Object.entries(capitals)) {
let cityBtn = document.createElement("button")
cityBtn.innerText = key
cityBtn.addEventListener("click", () => {
app.mapLayer.map.moveTo(val)
})
cityControl.appendChild(cityBtn)
}
</script>
</body>
</html>