plotly.js plotting library introductory tutorial sharing
This article mainly introduces you to the detailed introductory tutorial of plotly.js drawing library. The editor thinks it is quite good, so I will share it with you now and give it as a reference. Let’s follow the editor to take a look, I hope it can help everyone.
Plotly
Origin
In the past two days, I wanted to display mathematical function images on the front end. I guess there should be a mature js library. .
So, I simply tried it.
Finally decided to use plotly.js. Others such as function-plot also look good. I will take a look at it when I have time.
Plotly
plotly.js is the open source JavaScript graphing library that powers Plotly.
Plotly can be called the best graphing library to date ,none of them.
Simple case
Code
##
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>plot 绘制图像</title>
</head>
<body>
<p id="tester" style="width:600px;height:250px;"></p>
</body>
<script src="https://cdn.plot.ly/plotly-1.2.0.min.js"></script>
<!-- test -->
<script>
TESTER = document.getElementById('tester');
Plotly.plot(TESTER, [{
x: [1, 2, 3, 4, 5],
y: [1, 2, 4, 8, 16]
}], {
margin: {t: 0}
});
</script>
</html>
Drawing mathematical images
The principles of mathematical image drawing. For example, y = 2*x+1 is actually an image formed by connecting a series of (x,y) points.Code
##
<p id="math-function" style="width:600px;height:250px;"></p>
<script src="https://cdn.plot.ly/plotly-1.2.0.min.js"></script>
<script>
TESTER = document.getElementById('math-function');
var x = [], y = [];
for(var i = -10; i < 10; i += 1) {
x.push(i);
y.push(2*i+1);
}
Plotly.plot(TESTER, [{
x: x,
y: y
}], {
margin: {t: 0}
});
</script>Effect
Function image
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