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Map Alignment in PS [message #50202]

Mon, 18 September 2006 13:25

mankoff
Messages: 131
Registered: March 2004

Senior Member

I've been doing maps with IDL for years, both X11 direct and
PostScript. I've never seen this one before and I'm not sure why, as it
seems really easy to reproduce (on my system) and I cannot find a
work-around. Am I losing it?

This code:

map_set,0,0,/iso,/ortho
tv, map_image(bindgen(16,16),/compress,/bil,xx,yy),xx,yy
map_horizon

Produces a normal looking circle with a border.

But if I do

set_plot,'ps'
device, /color, bits=8
; insert above code here
device, /close
set_plot,'x'
$gv idl.ps

then I get a circle that is larger and offset from the border produced
by map_horizon.

{ ppc darwin unix Mac OS X 6.0.3 Feb 26 2004 32 32}

Anyone know what is going on?

Thanks,

-k.

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