bar3D-isometric.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Bar3D Isometric - 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>
<div id="image-upload">Drop files here or click to upload</div>
<style>
#image-upload {
width: 300px;
height: 100px;
line-height: 100px;
text-align: center;
cursor: pointer;
background: rgba(255, 255, 255, 0.2);
border-radius: 4px;
border: 2px dashed #999;
position: absolute;
right: 10px;
bottom: 10px;
z-index: 10;
color: #fff;
}
</style>
<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="lib/dat.gui.js"></script>
<script src="js/exportGL2PLY.js"></script>
<script src="lib/download.js"></script>
<script src="js/commonUI.js"></script>
<script>
var chart = echarts.init(document.getElementById('main'), null, {
devicePixelRatio: 1
});
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
var imgData;
chart.setOption({
toolbox: {
left: 10,
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(chart, {
mainType: 'grid3D',
index: 0
});
download(res, 'bar3D.ply', 'text/plain');
}
}
}
},
tooltip: {},
backgroundColor: '#000',
visualMap: {
max: 90,
min: 20,
inRange: {
color: ['#2c1a1b', '#3b2e39', '#864335', '#dbac55']
}
},
xAxis3D: {
type: 'value'
},
yAxis3D: {
type: 'value'
},
zAxis3D: {
type: 'value',
min: 0,
max: 100
},
grid3D: {
show: false,
viewControl: {
projection: 'orthographic',
alpha: 45,
beta: -45,
rotateSensitivity: [1, 0],
damping: 0.9,
panSensitivity: 0,
orthographicSize: 120
},
postEffect: {
enable: true,
bloom: {
intensity: 0.2
},
screenSpaceAmbientOcclusion: {
enable: false,
intensity: 1.5,
radius: 4,
quality: 'high'
},
// depthOfField: {
// enable: true,
// blurRadius: 4,
// fstop: 10
// }
},
boxDepth: 100,
boxHeight: 20,
environment: 'none',
light: {
main: {
shadow: true,
intensity: 2
},
ambientCubemap: {
// texture: 'asset/pisa.hdr',
// exposure: 2,
// diffuseIntensity: 0.2
}
}
}
})
function updateData(pixelData, width, height) {
console.time('update');
var data = new Float32Array(pixelData.length / 4 * 3);
var off = 0;
for (var i = 0; i < pixelData.length / 4; i++) {
var r = pixelData[i * 4];
var g = pixelData[i * 4 + 1];
var b = pixelData[i * 4 + 2];
var lum = (0.2125 * r + 0.7154 * g + 0.0721 * b);
lum = (lum - 125) * config.scale + 50;
data[off++] = i % width;
data[off++] = height - Math.floor(i / width);
data[off++] = lum;
}
chart.setOption({
grid3D: {
boxWidth: 100 / height * width
},
series: [{
type: 'bar3D',
shading: 'realistic',
realisticMaterial: {
roughness: 1
},
barSize: 0.4,
silent: true,
dimensions: ['x', 'y', 'z'],
// itemStyle: {
// color: function (params) {
// var i = params.dataIndex;
// var r = pixelData[i * 4] / 255;
// var g = pixelData[i * 4 + 1] / 255;
// var b = pixelData[i * 4 + 2] / 255;
// var lum = (0.2125 * r + 0.7154 * g + 0.0721 * b);
// // r *= lum * 2;
// // g *= lum * 2;
// // b *= lum * 2;
// return [r, g, b, 1];
// }
// },
data: data
}]
});
console.timeEnd('update');
}
function loadImage(img) {
var height = canvas.height = Math.min(256, img.height);
var aspect = img.width / img.height;
var width = canvas.width = Math.round(height * aspect);
ctx.drawImage(img, 0, 0, width, height);
imgData = ctx.getImageData(0, 0, width, height);
updateData(imgData.data, width, height);
}
var img = new Image();
img.onload = function () {
loadImage(img);
}
img.src = 'asset/sample.jpg';
// Configurations
var config = {
scale: 0.25,
roughness: 1,
metalness: 0,
projection: 'orthographic',
depthOfField: false
};
var gui = new dat.GUI();
gui.add(config, 'scale', -1, 1).onFinishChange(function () {
if (imgData) {
updateData(imgData.data, imgData.width, imgData.height);
}
});
['roughness', 'metalness'].forEach(function (propName) {
gui.add(config, propName, 0, 1).onFinishChange(function () {
chart.setOption({
series: [{
realisticMaterial: {
roughness: config.roughness,
metalness: config.metalness
}
}]
});
});
});
gui.add(config, 'projection', ['orthographic', 'perspective']).onChange(function () {
chart.setOption({
grid3D: {
viewControl: {
projection: config.projection
}
}
});
});
gui.add(config, 'depthOfField').onChange(function () {
chart.setOption({
grid3D: {
postEffect: {
depthOfField: {
enable: config.depthOfField
}
}
}
});
});
// Handle file uploads.
function readFile(file) {
if (!file || !file.type.match(/image/)) {
return;
}
var fileReader = new FileReader();
fileReader.onload = function (e) {
img = new Image();
img.onload = function () {
loadImage(img);
};
img.src = e.target.result;
}
fileReader.readAsDataURL(file);
}
$('#image-upload').on('dragover', function (e) {
e.stopPropagation();
e.preventDefault();
});
$('#image-upload')[0].addEventListener('drop', function (e) {
e.stopPropagation();
e.preventDefault();
var files = e.dataTransfer.files;
return readFile(files[0]);
});
$('#image-upload').on('click', function () {
var $file = $('<input type="file" />');
$file.on('change', function (e) {
readFile(e.target.files[0]);
});
$file.click();
});
window.onresize = chart.resize;
</script>
</body>
</html>