stationplot.plot_wind_barb(speed, direction, units='m/s') # 显示图形 plt.show() 在上述示例代码中,我们使用了Metpy库的StationPlot类来创建一个绘图对象,并使用plot_wind_barb方法在指定的位置绘制了测速图位置点。其中,speed和direction分别是风速和风向的数据,x和y分别是位置坐标的数据。 请注意,...
('temperature', 'dewpoint', 'direction', 'speed', 'u_wind', 'v_wind'), how='all').reset_index(drop=True) # We will pull the data out of the example dataset into individual variables and # assign units. # # # In[4]: p = df['pressure'].values * units.hPa T = df['...
"""Test calculating wind direction from masked wind components.""" mask=np.array([True,False,True,False]) u=np.array([4.,2.,0.,0.]) v=np.array([0.,2.,4.,0.]) u_masked=units.Quantity(np.ma.array(u,mask=mask),units('m/s')) ...
df['u_wind'], df['v_wind'] = mpcalc.wind_components(df['speed'], np.deg2rad(df['direction'])) # Drop any rows with all NaN values for T, Td, winds df = df.dropna(subset=('temperature', 'dewpoint', 'direction', 'speed', 'u_wind', 'v_wind'), how='all').reset_index(...
df=df.dropna(subset=('temperature','dewpoint','direction','speed','u_wind','v_wind'),how='all').reset_index(drop=True)### 对比可以发现,用于绘图的模块基本没变,而是用于读取数据的模块变了,无论是库还是代码调用方法。 代码语言:javascript...
1.水平.就是按记录分. 一个数据库有3000W用户记录.处理速度比较慢.这时可以把3000W.分成三份.每份...
要将风计算的metpy结果转换为numpy数组，只需使用numpynp.array函数。
要将风计算的metpy结果转换为numpy数组，只需使用numpynp.array函数。
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The wind direction in the doc strings for metpy.calc.wind_components is expected in arc degrees (out of 360): MetPy/metpy/calc/basic.py Lines 104 to 106 in 8f09b7b wdir : array_like The wind direction, specified as the direction from whi...