surface-large.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Parametric Surfaces Fun - 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"> <!-- Fullscreen Landscape on iOS -->
<link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="js/commonUI.js"></script>
<script>
// http://xahlee.info/surface/breather_p/breather_p.html
var chart = echarts.init(document.getElementById('main'));
var sin = Math.sin;
var cos = Math.cos;
var pow = Math.pow;
var sqrt = Math.sqrt;
var cosh = Math.cosh;
var sinh = Math.sinh;
var PI = Math.PI;
var aa = 0.4;
var r = 1 - aa * aa;
var w = sqrt(r);
chart.setOption({
toolbox: {
left: 20,
iconStyle: {
normal: {
borderColor: '#000'
}
},
feature: {
myExportObj: {
title: 'Export OBJ',
icon: 'M4.7,22.9L29.3,45.5L54.7,23.4M4.6,43.6L4.6,58L53.8,58L53.8,43.6M29.2,45.1L29.2,0',
onclick: function () {
var res = echarts.exportGL2PLY(myChart, {
mainType: 'grid3D',
index: 0
});
download(res, 'surface.ply', 'text/plain');
}
}
}
},
tooltip: {},
visualMap: {
show: false,
dimension: 0,
min: -9,
max: 9,
inRange: {
//color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']
color: ['#00007F', '#0000FF', '#00FFFF', '#00FF00', '#FFFF00', '#FF0000', '#7F0000']
}
},
xAxis3D: {},
yAxis3D: {},
zAxis3D: {},
grid3D: {
show: true,
postEffect: {
enable: true,
SSAO: {
enable: true,
radius: 4
}
},
viewControl: {
distance: 130,
beta: 50
},
light: {
main: {
intensity: 2,
shadow: true
},
ambient: {
intensity: 1
},
ambientCubemap: {
//texture: 'data-gl/asset/canyon.hdr',
exposure: 2,
diffuseIntensity: 0.2,
specularIntensity: 1
}
}
},
series: [{
type: 'surface',
parametric: true,
wireframe: {
show: false
},
shading: 'color',
realisticMaterial: {
roughness: 0.3,
metalness: 0
},
parametricEquation: {
u: {
min: -13.2,
max: 13.2,
step: 0.2
},
v: {
min: -37.4,
max: 37.4,
step: 0.2
},
x: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return -u + (2 * r * cosh(aa * u) * sinh(aa * u) / denom);
},
y: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return 2 * w * cosh(aa * u) * (-(w * cos(v) * cos(w * v)) - (sin(v) * sin(w * v))) / denom;
},
z: function (u, v) {
var denom = aa * (pow(w * cosh(aa * u), 2) + aa * pow(sin(w * v), 2))
return 2 * w * cosh(aa * u) * (-(w * sin(v) * cos(w * v)) + (cos(v) * sin(w * v))) / denom
}
}
}]
});
window.addEventListener('resize', function () {
chart.resize();
});
</script>
</body>
</html>