.. _news-meteoinfo_3.7.0:


******************************************
MeteoInfo 3.7.0 was released (2023-9-3)
******************************************

  - Support CMA Radar base standard data with ppi, cappi, cr and 3d grid interpolation
  - Add `append`, `insert`, `delete` functions
  - Add `stack`, `column_stack`, `row_stack` functions
  - Add `hypot`, `s_`, `index_exp` functions
  - Add `amx`, `amin` functions
  - Add `mgrid`, `gradient` functions
  - Add `cond` function in `linalg` package
  - Add `Wedge` patch
  - Add compare functions for DataFrame
  - Add `view` function for 3d axes
  - Add `contour3` plot function
  - Add 2D streamplot function in 3D axes
  - support drawing contours along the surface of the volume data in contourslice function
  - Update FlatLaf to version 3.2
  - Update JOGL to version 2.5.0
  - Update proj4j to version 1.3.0
  - Some other bugs fixed

**Read and plot 3D radar reflectivity data**::

    fn = r'D:\Temp\binary\radar\Z_RADR_I_Z9898_20190828181529_O_DOR_SAD_CAP_FMT.bin'
    f = addfile(fn)
    slat = f.attrvalue('StationLatitude')[0]
    slon = f.attrvalue('StationLongitude')[0]
    h = f.attrvalue('AntennaHeight')[0]
    lon = arange(108.25, 112.25, 0.01)
    lat = arange(18., 22., 0.01)
    z = arange(1000, 20001, 500)

    #Get 3d grid data
    glon, glat = meshgrid(lon, lat)
    x, y = RadarUtil.geographic_to_cartesian(slon, slat, glon, glat)
    data = f.get_grid_3d_data('dBZ', x, y, z, h)

    # Plot test
    axes3d(orthographic=False, aspect='xy_equal', facecolor='k',
        fgcolor='w', axis=True, axes_zoom=True)
    geoshow('world_topo.jpg')
    geoshow('cn_province')
    volumeplot(lon, lat, z, data, vmin=0, vmax=60, cmap='NCV_bright')
    colorbar(shrink=0.8, tickcolor='w')
    xlim(lon[0], lon[-1])
    ylim(lat[0], lat[-1])
    zlim(0, z[-1])
    xlabel('Longitude')
    ylabel('Latitude')
    zlabel('Height (m)')

.. image:: ../_static/radar_3d_grid_geo.png