CrimeMap.py 文件源码

def show_hexbin(self, query):
        """shows hexbin plot over map

        Args: 
            query: name of sql
        """
        self.load()
        data = pd.read_sql_query(con=self.con, sql=query)
        points = self.gen_points(data, self.data_map)
        hx = self.base_map.hexbin(
            np.array([geom.x for geom in points]),
            np.array([geom.y for geom in points]),
            gridsize=275,
            bins='log',
            mincnt=1,
            edgecolor='none',
            alpha=1.,
            lw=0.2,
            cmap=plt.get_cmap('afmhot'))
        plt.tight_layout()
        plt.show()