[python #JEP-515405]: FW: 20171221: script that inserts CSPP-GEO created GOES-16 products into an LDM queue (cont.)

Ray, 

So your original question was: "How are you getting the other corner values?"

My answer is: I don't think we are. :)

You mention matplotlib and the "map" command, but I'm not aware of any such 
command. Are you using Basemap? If so, I'm not sure I can help much. We've 
moved away from it, since it's in maintenance-only mode. 

I've plotted the GRB data using CartoPy, and I have been able to get away with 
only using the coordinate information contained within the data. Here's the 
plotting code I've used:

import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import cartopy.feature as cfeature

data = nc.variables['Rad'][:]
state_boundaries = cfeature.NaturalEarthFeature(category='cultural',
                                                
name='admin_1_states_provinces_lakes',
                                                scale='50m', facecolor='none')

fig = plt.figure(figsize=(10,10))
proj_var = nc.variables['goes_imager_projection']
globe = ccrs.Globe(semimajor_axis=proj_var.semi_major_axis, 
semiminor_axis=proj_var.semi_minor_axis)
proj = 
ccrs.Geostationary(central_longitude=proj_var.longitude_of_projection_origin,
                          satellite_height=proj_var.perspective_point_height, 
globe=globe)
ax = fig.add_subplot(1, 1, 1, projection=proj)

x = nc.variables['x'][:] * proj_var.perspective_point_height
y = nc.variables['y'][:] * proj_var.perspective_point_height
ax.imshow(data, extent=(x.min(), x.max(), y.min(), y.max()), cmap='Greys_r', 
origin='upper')
ax.coastlines('10m', color='tab:blue')
ax.add_feature(state_boundaries, edgecolor='tab:red')

Ryan


> And yes, NOAAPORT uses a totally different projection, lambert conformal, and 
> the proper values are in that data. So its being calculated by CSPP-GEO or 
> however they are driving NOAAPORT from GRB.
> 
> Ray
> 

Ticket Details
===================
Ticket ID: JEP-515405
Department: Support Python
Priority: Low
Status: Closed
===================
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