display.plot_ppi_map lat_lines and lon_lines when set to None

[allenea]

Hi,

I was trying to plot some radar images without having gridlines. However any time that I try to do it I get partial gridlines anyway. Is there a bug or am I doing something wrong.

FYI arm_pyart 1.11.0 py37h3b54f70_0 conda-forge cartopy 0.17.0 py37h95120c7_1007 conda-forge

Here is with the gridlines:

    fig = plt.figure(figsize=(8,8), dpi=100)

    # Grid data into geographic coordinates
    display = pyart.graph.RadarMapDisplay(radar)

    # Setting projection and ploting the second tilt
    projection = cartopy.crs.LambertConformal(central_latitude=radar.latitude['data'][0],
                                       central_longitude=radar.longitude['data'][0])
    # Display
    display.plot_ppi_map('reflectivity', 0, vmin=0, vmax=60,\
                         min_lon=-77, max_lon=-73.8, min_lat=37, max_lat=40.25,\
                         lon_lines=np.arange(-180, 0, 1), resolution='10m',\
                         lat_lines=np.arange(0, 90, 1), projection=projection,\
                         fig=fig, lat_0=radar.latitude['data'][0],\
                         lon_0=radar.longitude['data'][0],\
                         title_flag=True,\
                         title=display.generate_title("reflectivity", 0).split("Deg.")[0]+\
                         "Deg. "+timestamp+"\n NEXRAD Equivalent Reflectivity (dBZ)",                    
                         colorbar_flag=True,\
                         colorbar_label="Equivalent Reflectivity Factor (dBZ)",\
                         cmap=cmap, norm=norm)

    plt.show()
    plt.close()

Compared to without gridlines (None):

    fig = plt.figure(figsize=(8,8), dpi=100)

    # Grid data into geographic coordinates
    display = pyart.graph.RadarMapDisplay(radar)

    # Setting projection and ploting the second tilt
    projection = cartopy.crs.LambertConformal(central_latitude=radar.latitude['data'][0],
                                       central_longitude=radar.longitude['data'][0])
    # Display
    display.plot_ppi_map('reflectivity', 0, vmin=0, vmax=60,\
                         min_lon=-77, max_lon=-73.8, min_lat=37, max_lat=40.25,\
                         lon_lines=None, resolution='10m',\
                         lat_lines=None, projection=projection,\
                         fig=fig, lat_0=radar.latitude['data'][0],\
                         lon_0=radar.longitude['data'][0],\
                         title_flag=True,\
                         title=display.generate_title("reflectivity", 0).split("Deg.")[0]+\
                         "Deg. "+timestamp+"\n NEXRAD Equivalent Reflectivity (dBZ)",                    
                         colorbar_flag=True,\
                         colorbar_label="Equivalent Reflectivity Factor (dBZ)",\
                         cmap=cmap, norm=norm)

    plt.show()
    plt.close()

[scollis]

Thank you for the very detailed issue report! I'll assign @zssherman to investigate shortly.. In the meanwhile can you try setting embelish =False (just realize we have a spelling mistake there!)

[allenea]

Yep :) In the meantime this works. Thanks for looking into it.

Eric

[mgrover1]

Closed with #1297 , @allenea this is available with the most recent Py-ART release