Basic Information on hex

Task: hex
Purpose: Calculate hexagonal pointing grids for mosaicing.
Categories: image analysis

HEX - Calculate hexagonal pointing grids for mosaicing.

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    hex7

Key: rings
number of rings. Default rings=2 makes a hexagonal grid of
7 pointings.

Key: cell
Horizontal grid spacing in arcsecs.
The vertical spacing is sqrt(3)/2 times the
horizontal spacing.  

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