绘制点时不显示地图

Question

我正在尝试将点绘制到带有大熊猫的地图上，但是当我绘制点时，地图消失了。

{'a': ['c'], 'b': ['d'], 'c': ['a'], 'd': ['e'], 'e': ['d'], 'f': ['d']}

地图没有显示点

fp = "./nyu_2451_34490/nyu_2451_34490.shp"

map_df = gpd.read_file(fp)

map_df = map_df.to_crs(epsg=4326)

geometry = [Point(x) for x in zip(df['longitude'], df['latitude'])]

gdf = gpd.GeoDataFrame(df, crs = {'init': 'epsg:4326'}, geometry=geometry)

但是当我这样做

fig, ax = plt.subplots(figsize=(20, 20))
base = map_df.plot(ax=ax, color='gray')
# gdf.plot(ax=ax, markersize=5)

Answer 1

如果形状文件中包含经度和纬度，如何使用散点图绘制点？

def download_files(url):
    driver.get(url)
    for item in driver.find_elements_by_css_selector("a[href$='.doc']")[:2]:
        filename = item.get_attribute("href").split("/")[-1]
        #Define the path in the following line in order to resuse later
        file_location = os.path.join(desk_location, filename)
        item.click()

        time_to_wait = 10
        time_counter = 0
        try:
            while not os.path.exists(file_location): #use the file_location here
                time.sleep(1)
                time_counter += 1
                if time_counter > time_to_wait:break
            #Now rename the file once it is downloaded
            os.rename(file_location, os.path.join(desk_location, "its_"+filename))
        except Exception:pass

此外，这些点看起来比例不同，或者绘图显示的区域太宽。设置x和y轴的限制可能会有所帮助。

plt.scatter("longitude", "latitude", data=df)

希望这会有所帮助。