A tool to add basemap in matplotlib
Project description
plot_map
安装
pip install -U plot-map
底图加载功能
地图底图加载
只需要用以下代码:
import plot_map
#设定显示范围
bounds = [lon1,lat1,lon2,lat2]
plot_map.plot_map(plt,bounds,zoom = 12,style = 4)
参数
参数 | 描述 |
---|---|
bounds | 底图的绘图边界,[lon1,lat1,lon2,lat2] (WGS84坐标系) 其中,lon1,lat1是左下角坐标,lon2,lat2是右上角坐标 |
zoom | 底图的放大等级,越大越精细,加载的时间也就越久,一般单个城市大小的范围,这个参数选取12到16之间 |
style | 地图底图的样式,可选1-5,或'light','dark',style为4时为light,style为5时为dark |
imgsavepath | 瓦片地图储存路径,设置路径后,会把地图下载到本地的文件夹下,使用时也会优先搜索是否有已经下载的瓦片,默认的存放路径是C:\ |
printlog | 是否显示日志 |
绘制指北针和比例尺的功能plotscale
为底图添加指北针和比例尺
plot_map.plotscale(ax,bounds = bounds,textsize = 10,compasssize = 1,accuracy = 2000,rect = [0.06,0.03])
参数
参数 | 描述 |
---|---|
bounds | 底图的绘图边界,[lon1,lat1,lon2,lat2] (WGS84坐标系) 其中,lon1,lat1是左下角坐标,lon2,lat2是右上角坐标 |
textsize | 标注文字大小 |
compasssize | 标注的指北针大小 |
accuracy | 标注比例尺的长度 |
unit | 'KM','km','M','m' 比例尺的单位 |
style | 1或2,比例尺样式 |
rect | 比例尺在图中的大致位置,如[0.9,0.9]则在右上角 |
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