目录
一、实战场景
实战场景:如何绘制关系网格图展示8个节点间的关系
二、主要知识点
三、菜鸟实战
马上安排!
1、创建 python 文件
"""
Author: 菜鸟实战
实战场景: 如何绘制关系网格图展示8个节点间的关系
"""
# 导入系统包
import platform
from flask import Flask, render_template
from pyecharts import options as opts
from pyecharts.charts import *
print("Hello,菜鸟实战")
print("实战场景: 如何绘制关系网格图展示8个节点间的关系 \n")
web = Flask(__name__)
# 数据构建
nodes = [
{"name": "结点1", "symbolSize": 10},
{"name": "结点2", "symbolSize": 20},
{"name": "结点3", "symbolSize": 30},
{"name": "结点4", "symbolSize": 40},
{"name": "结点5", "symbolSize": 50},
{"name": "结点6", "symbolSize": 40},
{"name": "结点7", "symbolSize": 30},
{"name": "结点8", "symbolSize": 20},
]
links = []
for i in nodes:
for j in nodes:
links.append({"source": i.get("name"), "target": j.get("name")})
def graph_charts() -> Graph():
# 实例化对象
graph = Graph()
graph.add("", nodes, links, repulsion=8000)
# 全局置标题、标签
graph.set_global_opts(
title_opts=opts.TitleOpts(title="如何绘制关系网格图展示8个节点间的关系", subtitle="菜鸟实战,坚持学习!"),
legend_opts=opts.LegendOpts(type_="scroll", pos_top="5%")
)
return graph
# 获取对象
p = graph_charts()
# 绘制图形,生成HTML文件的
p.render('./templates/graph_charts.html')
# 添加路由显示图表
@web.route('/')
def index():
return render_template('graph_charts.html')
if __name__ == "__main__":
# 运行项目
web.run(debug=False)
print("Python 版本", platform.python_version())
2、运行结果
Hello,菜鸟实战
实战场景: 如何绘制关系网格图展示8个节点间的关系* Serving Flask app 'py037' (lazy loading)
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: off
* Running on http://127.0.0.1:5000 (Press CTRL+C to quit)
菜鸟实战,持续学习!