decode_griddata_from_swan_d131_byteArray函数结果的单位问题 #190

if scale_type == 0: # qpe等
scale = [0.1, 0]
elif scale_type == 1: # 雷达等
scale = [0.5, -33]
if version >= 2.:
scale[1] = head_info['offset'][0]
scale[0] = head_info['scale'][0]
# print('SWAN Version:', version)
# print('scale:', scale)
data = data * scale[0] + scale[1]
data = np.flip(data, 1) # reverse latitude axis
if time is None:
init_time = datetime.datetime(
head_info['year'][0], head_info['month'][0],
head_info['day'][0], head_info['hour'][0], head_info['minute'][0])
else:
init_time = time
grid_file = meteva.base.grid([slon,elon,dlon],[slat,elat,dlat],gtime=[init_time],dtime_list=[dtime],level_list=levels,member_list=[data_name])
grd = meteva.base.grid_data(grid_file,data)
meteva.base.reset(grd)
if grid is not None:
grd = meteva.base.interp_gg_linear(grd,grid,outer_value=outer_value)
if data_name is not None:
grd.attrs['short_name'] = data_name
grd.attrs['units'] = 'mm'
grd.attrs['Conventions'] = "CF-1.6"
grd.attrs['Origin'] = 'MICAPS Cassandra Server'
return grd

不论scale_type等于0还是1，读取的是雷达还是QPE文件，最终单位都会被设置为mm，似不合理