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HomeBackend DevelopmentGolangECharts and golang skills revealed: Secrets to making beautiful statistical charts

ECharts and golang skills revealed: Secrets to making beautiful statistical charts

Dec 18, 2023 pm 01:27 PM
echarts: data visualizationgolang: web developmentStatistical Charts: Design Principles

ECharts和golang技巧揭秘: 制作精美统计图表的秘籍

ECharts and golang skills revealed: Secrets to making beautiful statistical charts

Introduction:
In the current era of big data, data visualization is an important data analysis tool. By displaying data in the form of charts, you can understand and analyze the data more intuitively.

ECharts is a popular data visualization library that provides a wealth of chart types and flexible configuration options, allowing us to easily create beautiful statistical charts. As a powerful programming language, golang can also be used to process data and generate charts.

This article will introduce some tips for using ECharts and golang to create beautiful statistical charts, and provide specific code examples.

1. Install and configure ECharts
Before we begin, we need to install and configure ECharts.

  1. Download ECharts
    You can download the latest version of ECharts from the ECharts official website (https://echarts.apache.org/).
  2. Introduce ECharts
    Introduce the ECharts script file into your HTML file. It can be introduced in the following ways:

    <script src="echarts.min.js"></script>
  3. Create a container
    Create a container in the HTML file to display the chart. For example:

    <div id="chartContainer" style="width: 600px;height:400px;"></div>

2. Use golang to generate chart data
Before starting to make the chart, we need to use golang to generate the data required for the chart.

  1. Install and configure golang
    You can download and install the latest version of golang from the golang official website (https://golang.org/).
  2. Create a golang file
    In your golang project, create a file. For example:

    package main
    
    import (
     "encoding/json"
     "fmt"
    )
    
    type ChartData struct {
     Categories []string  `json:"categories"`
     Series     []float64 `json:"series"`
    }
    
    func main() {
     data := ChartData{
         Categories: []string{"A", "B", "C", "D", "E"},
         Series:     []float64{60.5, 80.2, 70.8, 90.3, 75.6},
     }
    
     jsonData, err := json.Marshal(data)
     if err != nil {
         fmt.Println("Failed to marshal data:", err)
         return
     }
    
     fmt.Println(string(jsonData))
    }
  3. Generate data
    Run the golang file and copy the generated data to the HTML file created earlier:

    <script>
     var data = {"categories":["A","B","C","D","E"],"series":[60.5,80.2,70.8,90.3,75.6]};
    </script>

3. Generate charts
Now that we have prepared the ECharts configuration and chart data, let’s start making charts.

  1. Create a chart instance
    Add the following code in the HTML file to create an ECharts instance:

    <script>
     var chart = echarts.init(document.getElementById('chartContainer'));
    </script>
  2. Configure chart options
    Set the basic configuration options of the chart on the instance, such as chart type, title, X-axis and Y-axis, etc.:

    <script>
     chart.setOption({
         title: {
             text: '统计图表',
             subtext: '示例'
         },
         xAxis: {
             data: data.categories
         },
         yAxis: {},
         series: [{
             type: 'bar',
             data: data.series
         }]
     });
    </script>
  3. Render the chart
    Finally, call the ## of the instance #echarts.init()Method to render charts:

    <script>
     chart.setOption(option);
    </script>

4. Conclusion

This article introduces how to use ECharts and golang to create beautiful statistical charts, and provides Detailed code examples. With these tips and tricks, you'll be able to create beautiful data visualizations more easily. Hope this article is helpful to you!

Reference materials:

    ECharts official website: https://echarts.apache.org/
  • golang official website: https://golang.org/

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