PyEcharts 基本图表之关系图

第1关 Graph：关系图（一）

from PreTest import *
from pyecharts import options as opts
from pyecharts.render import make_snapshot
from snapshot_phantomjs import snapshot

from pyecharts.charts import Graph


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_chart() -> Graph:
    # ********* Begin *********#  
    graph = (
        Graph()
            .add("", nodes, links, repulsion=8000)
            .set_global_opts(title_opts=opts.TitleOpts(title="Graph-基本示例"))
    )
    # ********** End **********#
    return graph
make_snapshot(snapshot, graph_chart().render("Result/render.html"), 'StudentAnswer/student_answer.png') # 输出图片
make_snapshot(snapshot, graph_base(nodes, links).render(), "StandardAnswer/task1/standard_answer_1.png")

第2关 Graph：关系图（二）

from PreTest import *
from pyecharts import options as opts
from pyecharts.render import make_snapshot
from snapshot_phantomjs import snapshot

from pyecharts.charts import Graph

# ********* Begin *********#
nodes_data = [
        opts.GraphNode(name="结点1", symbol_size=10),
        opts.GraphNode(name="结点2", symbol_size=20),
        opts.GraphNode(name="结点3", symbol_size=30),
        opts.GraphNode(name="结点4", symbol_size=40),
        opts.GraphNode(name="结点5", symbol_size=50),
        opts.GraphNode(name="结点6", symbol_size=60),
]
links_data = [
    opts.GraphLink(source="结点1", target="结点2", value=2),
    opts.GraphLink(source="结点2", target="结点3", value=3),
    opts.GraphLink(source="结点3", target="结点4", value=4),
    opts.GraphLink(source="结点4", target="结点5", value=5),
    opts.GraphLink(source="结点5", target="结点6", value=6),
    opts.GraphLink(source="结点6", target="结点1", value=7),
]
# ********** End **********#



def graph_chart() -> Graph:
    # ********* Begin *********#  
    graph = (
        Graph()
            .add(
            "",
            nodes_data,
            links_data,
            repulsion=4000,
            edge_label=opts.LabelOpts(
                is_show=True, position="middle", formatter="{b} 的数据 {c}"
            ),
        )
            .set_global_opts(
            title_opts=opts.TitleOpts(title="Graph-GraphNode-GraphLink-WithEdgeLabel")
        )
    )
    # ********** End **********#
    return graph

make_snapshot(snapshot, graph_chart().render("Result/render.html"), "StudentAnswer/student_answer.png") # 输出图片
make_snapshot(snapshot, graph_with_options().render(), "StandardAnswer/task2/standard_answer_2.png")

第3关 Graph：关系图（三）

from PreTest import *
from pyecharts import options as opts
from pyecharts.render import make_snapshot
from snapshot_phantomjs import snapshot

from pyecharts.charts import Graph

import json

with open("les-miserables.json", "r", encoding="utf-8") as f:
    j = json.load(f)
    nodes = j["nodes"]
    links = j["links"]
    categories = j["categories"]


def graph_les_miserables(nodes, links, categories) -> Graph:
    # ********* Begin *********#  
    graph = (
        Graph(init_opts=opts.InitOpts(width="1000px", height="600px"))
            .add(
            "",
            nodes=nodes,
            links=links,
            categories=categories,
            layout="circular",
            is_rotate_label=True,
            linestyle_opts=opts.LineStyleOpts(color="source", curve=0.3),
            label_opts=opts.LabelOpts(position="right"),
        )
            .set_global_opts(
            title_opts=opts.TitleOpts(title="Graph-Les Miserables"),
            legend_opts=opts.LegendOpts(orient="vertical", pos_left="2%", pos_top="20%"),
        )
    )
    # ********** End **********#
    return graph

make_snapshot(snapshot, graph_les_miserables(nodes, links, categories).render("Result/render.html"), 'StudentAnswer/student_answer.png') # 输出图片
make_snapshot(snapshot, graph_les_miserables(nodes, links, categories).render(), "StandardAnswer/task3/standard_answer_3.png")

 第4关 Graph：关系图（四）

from PreTest import *
from pyecharts import options as opts
from pyecharts.render import make_snapshot
from snapshot_phantomjs import snapshot

from pyecharts.charts import Graph

import json

# ********* Begin *********#
# File: weibo.json
# variables: nodes, links, categories


# ********** End **********#

def graph_weibo() -> Graph:
    # ********* Begin *********#  
    with open("les-miserables.json", "r", encoding="utf-8") as f:
        j = json.load(f)
        nodes = j["nodes"]
        links = j["links"]
        categories = j["categories"]


    with open("weibo.json", "r", encoding="utf-8") as f:
        j = json.load(f)
        nodes, links, categories, cont, mid, userl = j


    graph = (
        Graph()
            .add(
            "",
            nodes,
            links,
            categories,
            repulsion=50,
            linestyle_opts=opts.LineStyleOpts(curve=0.2),
            label_opts=opts.LabelOpts(is_show=False),
        )
            .set_global_opts(
            legend_opts=opts.LegendOpts(is_show=False),
            title_opts=opts.TitleOpts(title="Graph-微博转发关系图"),
        )
    )
    # ********** End **********#
    return graph

make_snapshot(snapshot, graph_weibo().render("Result/render.html"), 'StudentAnswer/student_answer.png') # 输出图片
make_snapshot(snapshot, graph_weibo().render(), "StandardAnswer/task4/standard_answer_4.png")