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west longitudes on orthographic projection [message #89293] Thu, 14 August 2014 10:07 Go to previous message
Francesca Scipioni is currently offline  Francesca Scipioni
Messages: 6
Registered: August 2014
Junior Member
Hi!

I'm trying to project my data on an orthographic map/grid in west longitudes.

I use the combination map_Set and cgMap_Grid, which automatically convert longitudes in the range -180 and 180. With cgMap_Grid I can create a final image whose grid is between 0 and 360 by changing values names:

cgMAP_GRID, /label, Map=map ,linestyle = 0, thick = 2, charsize = 2, LATS= [-60, -70, -80, -90], LONS = [0,45,90,135,180,-135,-90,-45, 0], LONNAMES = [0,45,90,135,180,225,270,315]

In this case, longitudes grow on the east direction. I need a grid whose longitudes grow in the west direction, so between 360 and 0. The final image is the mirrored of the original one.

Is there any way to obtain that?

Thanks!
Francesca
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