I have a GeoDataFrame I want to plot. This works fine, however somehow I cannot easily plot its legend. I have tried a number of alternatives and checked solutions from googling and LLM, but I do not understand why this does not work. Code: import geopandas as gpd from shapely.geometry import box, Polygon, LineString import matplotlib.pyplot as plt fig, ax = plt.subplots() bounding_box = [9.454, 80.4, 12, 80.88] polygon = box(*bounding_box) gdf = gpd.GeoDataFrame(geometry=[polygon]) plot_obj = gdf.plot(ax=ax, edgecolor='red', facecolor='none', linewidth=2, label="user bbox query") # plt.legend() # does not work # ax.legend(handles=[plot_obj], labels=["test"]) # does not work ax.legend(handles=[plot_obj]) # does not work plt.xlabel('Longitude') plt.ylabel('Latitude') plt.show() Result: I get a warning: <python-input-0>:16: UserWarning: Legend does not support handles for Axes instances. A proxy artist may be used instead. See: https://matplotlib.org/stable/users/explain/axes/legend_guide.html#controlling-the-legend-entries ax.legend(handles=[plot_obj]) # does not wor But somehow I am not able to take advantage of it to make things work (I tried several ways to plot the legend from "handles", see the different attempts, but none work). I am certainly missing something - any pointer to how this can be done simply? Continue reading...
