地图绘制入门

地图绘制入门#

备注

为了保证 Sphinx 渲染输出 HTML，需要创建空的 go.FigureWidget。

from plotly import graph_objects as go
go.FigureWidget(); # 用于 Sphinx 初始化渲染

基础地图 WGS84#

基础数据：

data = []
scattermapbox = go.Scattermapbox() 
data.append(scattermapbox)

布局：

mapbox_kargs = {'zoom': 10,
 'center': {'lat': 30.272934, 'lon': 120.147376},
 'style': "open-street-map",
 'accesstoken': '!!! replace with your mapbox ak !!!'}

layout_kargs = {'autosize': False,
                'width': 1000,
                'height': 600,
                'margin': {'r': 0, 't': 0, 'l': 0, 'b': 0, 'pad': 0}}

layout = go.Layout(
    mapbox=mapbox_kargs,
    **layout_kargs
)

渲染：

fig = go.Figure(
    data=data,
    layout=layout
)
fig

可选的地图样式：（无需 ak）"open-street-map"，"carto-positron"，"stamen-terrain" 等 ；（需要 ak）"basic"，"streets"，"outdoors" 等。

使用高德地图 GCJ-02#

import plotly.graph_objects as go

data = []
scattermapbox = go.Scattermapbox()
data.append(scattermapbox)

basemap_layer = [{'below': 'traces',
                  'sourcetype': 'raster',
                  'sourceattribution': '高德地图',
                  'source': ['http://wprd01.is.autonavi.com/appmaptile?x={x}&y={y}&z={z}&lang=zh_cn&size=1&scl=1&style=7']}]

mapbox_kargs = {'zoom': 10,
                'center': {'lat': 30.272934, 'lon': 120.147376},
                'style': 'white-bg',
                'layers': basemap_layer}

layout_kargs = {'autosize': False,
                'width': 1000,
                'height': 500,
                'margin': {'r': 0, 't': 38, 'l': 0, 'b': 0, 'pad': 0}}

layout = go.Layout(
    mapbox=mapbox_kargs,
    **layout_kargs
)

fig = go.Figure(
    data=data,
    layout=layout
)

fig

使用天地图 CGCS2000#

import plotly.graph_objects as go

data = []

scattermapbox = go.Scattermapbox()
data.append(scattermapbox)

tk = "!!! replace with your tianditu tk !!!"
layer = "vec"
basemap_layer = [{'below': 'traces',
                  'sourcetype': 'raster',
                  'sourceattribution': '天地图',
                  'source': ['https://t0.tianditu.gov.cn/vec_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=vec&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=!!! replace with your tianditu tk !!!']},
                 {'below': 'traces',
                  'sourcetype': 'raster',
                  'source': ['https://t3.tianditu.gov.cn/cva_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=cva&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=!!! replace with your tianditu tk !!!']}]

mapbox_kargs = {
    'zoom': 10,
    'center': {'lat': 30.272934, 'lon': 120.147376},
    'style': 'carto-positron',
    'layers': basemap_layer
}

layout_kargs = {'autosize': False,
                'width': 1200,
                'height': 500,
                'margin': {'r': 0, 't': 38, 'l': 0, 'b': 0, 'pad': 0}}

layout = go.Layout(
    mapbox=mapbox_kargs,
    **layout_kargs
)

fig = go.Figure(
    data=data,
    layout=layout
)

fig
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