slides/webgl/asset/ec-demo2/scatter3D-simplex.html (77 lines of code) (raw):
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Scatter3D Simplex Noise - ECHARTS-GL</title>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes">
<link rel="stylesheet" href="../common/reset.css">
</head>
<body>
<div id="main"></div>
<script src="../common/echarts.min.js"></script>
<script src="../common/jquery.min.js"></script>
<script src="../common/echarts-gl.js"></script>
<script src="../common/simplex.js"></script>
<script>
var chart = echarts.init(document.getElementById('main'));
var noise = new SimplexNoise(Math.random);
function generateData(theta, min, max) {
var data = [];
for (var i = 0; i <= 30; i++) {
for (var j = 0; j <= 30; j++) {
for (var k = 0; k <= 30; k++) {
var value = noise.noise3D(i / 10, j / 10, k / 10);
valMax = Math.max(valMax, value);
valMin = Math.min(valMin, value);
data.push([i, j, k, value * 2 + 4]);
}
}
}
return data;
}
var valMin = Infinity;
var valMax = -Infinity;
var data = generateData(2, -5, 5);
console.log(valMin, valMax);
chart.setOption({
tooltip: {},
visualMap: {
show: false,
min: 2,
max: 6,
inRange: {
symbolSize: [0.5, 15],
color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026'],
colorAlpha: [0.2, 1]
}
},
xAxis3D: {
type: 'value'
},
yAxis3D: {
type: 'value'
},
zAxis3D: {
type: 'value'
},
grid3D: {
axisLine: {
lineStyle: { color: '#fff' }
},
axisPointer: {
lineStyle: { color: '#fff' }
},
viewControl: {
autoRotate: true
}
},
series: [{
type: 'scatter3D',
data: data
}]
});
window.onresize = chart.resize;
</script>
</body>
</html>