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Detailed interpretation of plotly.js drawing library usage tutorial (detailed tutorial)

亚连Original: 2018-06-04 17:48:006148browse

This article mainly introduces the detailed introductory tutorial of plotly.js drawing library. Now I share it with you and give it as a reference.

This article introduces the introductory tutorial of plotly.js drawing library and shares it with everyone. The details are as follows:

Plotly

##Origin

In the past two days, I want 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(&#39;tester&#39;);
  Plotly.plot(TESTER, [{
    x: [1, 2, 3, 4, 5],
    y: [1, 2, 4, 8, 16]
  }], {
    margin: {t: 0}
  });
</script>
</html>

Effect

Dot plot

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(&#39;math-function&#39;);

  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

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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