Storing Polygon Information

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Storing Polygon Information
• From: owner-netcdfgroup@xxxxxxxxxxxxxxxx
• Date: Thu, 12 Aug 2004 08:40:21 -0500

Matthew -

        Have you tried establishing a Dimension for each possible shape (i.e.:
8_SIDES = 8) then creating a variable with that dimension of type double
with each value being a vertex point that has the x-value on the left of the
decimal and the y-value on the right?  This should also allow you to add
attibutes to the variable for wall color, fill values, etc....

Regards,

Tom Grills

-----Original Message-----
[mailto:owner-netcdfgroup@xxxxxxxxxxxxxxxx]On Behalf Of Matthew Hanna
Sent: Thursday, August 12, 2004 8:00 AM


Can anyone recommend a convention or method of storing polygonal
information in a NetCDF file?  The polygons may not have an equal number
of points.  They could be triangles, rectangles, octagons, whatever.  I
just can't think of any efficient means of storing this kind of
information.  Any ideas or opinions?

Thanks!
Matthew Hanna

• References:
  • Storing Polygon Information
    • From: Matthew Hanna