pyecharts从入门到精通-地图专题BMap-世界地图和中国城市地图

用户2225445

发布于 2023-10-16 17:51:52

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发布于 2023-10-16 17:51:52

文章被收录于专栏：IT从业者张某某

参考

官方文档:https://pyecharts.org/#/zh-cn/quickstart Bmap - Hiking_trail_in_hangzhou

安装与查看pyecharts

安装pyecharts

pip install pyecharts==2.0.3
# Successfully installed prettytable-3.7.0 pyecharts-2.0.3 simplejson-3.19.1

查看版本

import pyecharts
print(pyecharts.__version__) 
# 2.0.3

地图实现-BMap

pyecharts的地图实现包括:

Geo：地理坐标系 Map：地图 BMap：百度地图

本部分完成BMap坐标系实现。

案例演示

from pyecharts import options as opts
from pyecharts.charts import BMap
from pyecharts.faker import Faker

c = (
    BMap()
    .add_schema(baidu_ak="FAKE_AK", center=[120.13066322374, 30.240018034923])
    .add(
        "bmap",
        [list(z) for z in zip(Faker.provinces, Faker.values())],
        label_opts=opts.LabelOpts(formatter="{b}"),
    )
    .set_global_opts(title_opts=opts.TitleOpts(title="BMap-基本示例"))
    .render("bmap_base.html")
)

案例演示-杭州热门旅行线路图

import asyncio
from aiohttp import TCPConnector, ClientSession

from pyecharts.charts import BMap
from pyecharts import options as opts
from pyecharts.globals import BMapType, ChartType

import nest_asyncio
nest_asyncio.apply()

async def get_json_data(url: str) -> dict:
    async with ClientSession(connector=TCPConnector(ssl=False)) as session:
        async with session.get(url=url) as response:
            return await response.json()


# 获取官方的数据
data = asyncio.run(
    get_json_data(
        url="https://echarts.apache.org/examples/data/asset/data/hangzhou-tracks.json"
    )
)

map_data = [[y["coord"] for y in x] for x in data]

(
    BMap(init_opts=opts.InitOpts(width="1200px", height="800px"))
    .add_schema(
        baidu_ak="FAKE_AK",# 
        center=[120.13066322374, 30.240018034923],
        zoom=14,
        is_roam=True,
        map_style={
            "styleJson": [
                {
                    "featureType": "water",
                    "elementType": "all",
                    "stylers": {"color": "#d1d1d1"},
                },
                {
                    "featureType": "land",
                    "elementType": "all",
                    "stylers": {"color": "#f3f3f3"},
                },
                {
                    "featureType": "railway",
                    "elementType": "all",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "highway",
                    "elementType": "all",
                    "stylers": {"color": "#fdfdfd"},
                },
                {
                    "featureType": "highway",
                    "elementType": "labels",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "arterial",
                    "elementType": "geometry",
                    "stylers": {"color": "#fefefe"},
                },
                {
                    "featureType": "arterial",
                    "elementType": "geometry.fill",
                    "stylers": {"color": "#fefefe"},
                },
                {
                    "featureType": "poi",
                    "elementType": "all",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "green",
                    "elementType": "all",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "subway",
                    "elementType": "all",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "manmade",
                    "elementType": "all",
                    "stylers": {"color": "#d1d1d1"},
                },
                {
                    "featureType": "local",
                    "elementType": "all",
                    "stylers": {"color": "#d1d1d1"},
                },
                {
                    "featureType": "arterial",
                    "elementType": "labels",
                    "stylers": {"visibility": "off"},
                },
                {
                    "featureType": "boundary",
                    "elementType": "all",
                    "stylers": {"color": "#fefefe"},
                },
                {
                    "featureType": "building",
                    "elementType": "all",
                    "stylers": {"color": "#d1d1d1"},
                },
                {
                    "featureType": "label",
                    "elementType": "labels.text.fill",
                    "stylers": {"color": "#999999"},
                },
            ]
        },
    )
    .add(
        series_name="",
        type_=ChartType.LINES,
        data_pair=map_data,
        is_polyline=True,
        is_large=True,
        linestyle_opts=opts.LineStyleOpts(color="purple", opacity=0.6, width=1),
        effect_opts=opts.EffectOpts(trail_length=0.5),
    )
    .add_control_panel(
        copyright_control_opts=opts.BMapCopyrightTypeOpts(position=3),
        maptype_control_opts=opts.BMapTypeControlOpts(
            type_=BMapType.MAPTYPE_CONTROL_DROPDOWN
        ),
        scale_control_opts=opts.BMapScaleControlOpts(),
        overview_map_opts=opts.BMapOverviewMapControlOpts(is_open=True),
        navigation_control_opts=opts.BMapNavigationControlOpts(),
        geo_location_control_opts=opts.BMapGeoLocationControlOpts(),
    )
    .render("hiking_trail_in_hangzhou.html")
)

拓展-pyecharts中BMap源码

百度地图需要申请开发者 AK，官网申请。

class pyecharts.charts.BMap

class BMap(
    # 初始化配置项，参考 `global_options.InitOpts`
    init_opts: opts.InitOpts = opts.InitOpts()

    # 是否忽略不存在的坐标，默认值为 False，即不忽略
    is_ignore_nonexistent_coord: bool = False
)

func pyecharts.charts.BMap.add_schema

def add_schema(
    # 百度地图开发应用 appkey，请使用到百度地图的开发者自行到百度地图开发者中心
    # 注册百度 ak。
    baidu_ak: str,

    # 当前视角的中心点，用经纬度表示
    center: Optional[Sequence] = None,

    # 当前视角的缩放比例。
    zoom: Optional[Numeric] = None,

    # 是否开启鼠标缩放和平移漫游。
    is_roam: bool = True,

    # 地图样式配置项
    map_style: Optional[dict] = None,
)

func pyecharts.charts.BMap.add

def add(
    # 系列名称，用于 tooltip 的显示，legend 的图例筛选。
    series_name: str,

    # 数据项 (坐标点名称，坐标点值)
    data_pair: Sequence,

    # Geo 图类型，有 scatter, effectScatter, heatmap, lines 4 种，建议使用
    # from pyecharts.globals import GeoType
    # GeoType.GeoType.EFFECT_SCATTER，GeoType.HEATMAP，GeoType.LINES
    type_: str = "scatter",

    # 是否选中图例
    is_selected: bool = True,

    # 标记图形形状
    symbol: Optional[str] = None,

    # 标记的大小
    symbol_size: Numeric = 12,

    # 系列 label 颜色
    color: Optional[str] = None,

    # 是否是多段线，在画 lines 图情况下
    is_polyline: bool = False,

    # 是否启用大规模线图的优化，在数据图形特别多的时候（>=5k）可以开启
    is_large: bool = False,

    # 开启绘制优化的阈值。
    large_threshold: Numeric = 2000,

    # 标签配置项，参考 `series_options.LabelOpts`
    label_opts: Union[opts.LabelOpts, dict] = opts.LabelOpts(),

    # 涟漪特效配置项，参考 `series_options.EffectOpts`
    effect_opts: Union[opts.EffectOpts, dict] = opts.EffectOpts(),

    # 线样式配置项，参考 `series_options.LineStyleOpts`
    linestyle_opts: Union[opts.LineStyleOpts, dict] = opts.LineStyleOpts(),

    # 提示框组件配置项，参考 `series_options.TooltipOpts`
    tooltip_opts: Union[opts.TooltipOpts, dict, None] = None,

    # 图元样式配置项，参考 `series_options.ItemStyleOpts`
    itemstyle_opts: Union[opts.ItemStyleOpts, dict, None] = None,
)

func pyecharts.charts.BMap.add_control_panel

def add_control_panel(
    # 地图的平移缩放控件
    navigation_control_opts: Union[opts.BMapNavigationControlOpts, dict, None] = None,

    # 缩略地图控件
    overview_map_opts: Union[opts.BMapOverviewMapControlOpts, dict, None] = None,

    # 比例尺控件
    scale_control_opts: Union[opts.BMapScaleControlOpts, dict, None] = None,

    # 切换地图类型的控件
    maptype_control_opts: Union[opts.BMapTypeControlOpts, dict, None] = None,

    # 版权控件，您可以在地图上添加自己的版权信息。
    # 每一个版权信息需要包含如下内容：版权的唯一标识、版权内容和其适用的区域范围。
    copyright_control_opts: Union[opts.BMapCopyrightTypeOpts, dict, None] = None,

    # 地图定位的控件，使用 HTML5 浏览器定位功能
    geo_location_control_opts: Union[opts.BMapGeoLocationControlOpts, dict, None] = None,
)

class pyecharts.options.BMapNavigationControlOpts BMapNavigationControlOpts：地图的平移缩放控件

class BMapNavigationControlOpts(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_TOP_LEFT,

    # 控件的水平偏移值
    offset_width: Numeric = 10,

    # 控件的竖直偏移值
    offset_height: Numeric = 10,

    # 平移缩放控件的类型
    # NAVIGATION_CONTROL_LARGE，标准的平移缩放控件（包括平移、缩放按钮和滑块，值为 0
    # NAVIGATION_CONTROL_SMALL，仅包含平移和缩放按钮，值为 1
    # NAVIGATION_CONTROL_PAN，仅包含平移按钮，值为 2
    # NAVIGATION_CONTROL_ZOOM，仅包含缩放按钮，值为 3
    type_: Numeric = BMapType.NAVIGATION_CONTROL_LARGE,

    # 是否显示级别提示信息
    is_show_zoom_info: bool = False,

    # 控件是否集成定位功能
    is_enable_geo_location: bool = False,
)

class pyecharts.options.BMapOverviewMapControlOpts BMapOverviewMapControlOpts：缩略地图控件

class BMapOverviewMapControlOpts(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_BOTTOM_RIGHT,

    # 控件的水平偏移值
    offset_width: Numeric = 10,

    # 控件的竖直偏移值
    offset_height: Numeric = 50,

    # 缩略地图添加到地图后的开合状态，默认为 False 关闭
    is_open: bool = False,
)

class pyecharts.options.BMapScaleControlOpts BMapScaleControlOpts：比例尺控件

class BMapScaleControlOpts(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_BOTTOM_RIGHT,

    # 控件的水平偏移值
    offset_width: Numeric = 10,

    # 控件的竖直偏移值
    offset_height: Numeric = 50,
)

BMapTypeControl：切换地图类型的控件 class pyecharts.options.BMapTypeControl

class BMapTypeControl(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_TOP_RIGHT,

    # 地图类型属性
    # MAPTYPE_CONTROL_HORIZONTAL，按钮水平方式展示，默认采用此类型展示。值为 0
    # MAPTYPE_CONTROL_DROPDOWN，按钮呈下拉列表方式展示，值为 1
    # MAPTYPE_CONTROL_MAP，以图片方式展示类型控件，设置该类型后无法指定 maptypes 属性，值为 2
    type_: Numeric = BMapType.MAPTYPE_CONTROL_HORIZONTAL,
)

BMapCopyrightType：版权控件 class pyecharts.options.BMapCopyrightType

class BMapCopyrightType(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_BOTTOM_RIGHT,

    # 控件的水平偏移值
    offset_width: Numeric = 10,

    # 控件的竖直偏移值
    offset_height: Numeric = 50,

    # Copyright 的文本内容, 可以放入 HTML 标签
    copyright_: str = "",
)

BMapGeoLocationControlOpts：地图定位的控件 class pyecharts.options.BMapGeoLocationControlOpts

class BMapGeoLocationControlOpts(
    # 控件的停靠位置
    # ANCHOR_TOP_LEFT，控件将定位到地图的左上角，值为 0
    # ANCHOR_TOP_RIGHT，控件将定位到地图的右上角，值为 1
    # ANCHOR_BOTTOM_LEFT，控件将定位到地图的左下角，值为 2
    # ANCHOR_BOTTOM_RIGHT，控件将定位到地图的右下角，值为 3
    position: Numeric = BMapType.ANCHOR_BOTTOM_RIGHT,

    # 控件的水平偏移值
    offset_width: Numeric = 10,

    # 控件的竖直偏移值
    offset_height: Numeric = 50,

    # 是否显示定位信息面板。默认显示定位信息面板
    is_show_address_bar: bool = True,

    # 添加控件时是否进行定位。默认添加控件时不进行定位
    is_enable_auto_location: bool = False,
)