mt-polygon-simplification/lib/psimpl-js/example.html

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2019-07-19 19:33:27 +02:00
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
</head>
<body>
<div>Original array: <span id="src">Loading...</span></div>
<div>Simplified array: <span id="dest">Loading...</span></div>
<script type="module">
import moduleFactory from './psimpl.js'
import { storeCoords, unflattenCoords } from '../wasm-util/coordinates.js'
const module = moduleFactory()
const data = [
[0, 0],
[1, 1],
[1, 2],
[2, 2],
[5, 5],
[5, 0],
[6, 10],
[10, 10]
]
document.getElementById('src').innerText = JSON.stringify(data)
module.onRuntimeInitialized = async _ => {
const buffer = storeCoords(module, data)
const result = module.douglas_peucker(buffer, data.length * 2, 2)
module._free(buffer)
const simplified = unflattenCoords(result)
document.getElementById('dest').innerText = JSON.stringify(simplified)
}
</script>
</body>
</html>