02. 数据花活儿


示例

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>散点图 - 数据花活儿</title>
</head>

<body>
<div id='F2' style='position:relative; width: 600px; height:300px; '></div>

<script src='../dist/scatter.js'></script>
<script>
createChart('F2');

function createChart(divID)
{
//1. 生成图表对象
let chart = new T.scatter.Chart(divID);

//2. 停止图表绘制
chart.stop() ;

//3. 准备数据
let data1 = [];
let data2 = [];

let len = 10000;
let x = 0;
while (len--) {
x = (Math.random() * 10).toFixed(3) - 0;
data1.push([
x,
//Math.random() * 10
(Math.sin(x) - x * (len % 2 ? 0.1 : -0.1) * Math.random()).toFixed(3) - 0
]);
}

len = 10000;
x = 0;
while (len--) {
x = (Math.random() * 10).toFixed(3) - 0;
data2.push([
x,
//Math.random() * 10
(Math.cos(x) - x * (len % 2 ? 0.1 : -0.1) * Math.random()).toFixed(3) - 0
]);
}

let series1 = new T.scatter.Series();
series1.name = '系列1';
series1.data =data1 ;

let series2 = new T.scatter.Series();
series2.name = '系列2';
series2.data = data2 ;

//4. 设置图表信息
let chartInfo_In = chart.chartInfo_In ;
chartInfo_In.title = '散点图';
chartInfo_In.schema = ['x','y'] ;
chartInfo_In.radius = 1; //散点半径
chartInfo_In.series = [series1,series2];

//5. 开始图表绘制
chart.start();
}

</script>
</body>
</html>