Hi - I have an image that is the result of combining three elements.
First using the mapping utilities a stereographic projection of the
earth is set up. Then the elevation data is overlayed as a color image
with the tv routine. Lastly, a pressure field is overlayed with the
contour routine -- I've included the code below.
When I display this as an x-windows image, it looks perfect. When I
attempted to convert it to write as a color postscript file the images
no longer overlap correctlyand are scaled differently. It looks like the
tv image is no longer scaled correctly by the map_image and/or map_patch
routines.
Any help on this would be greatly appreciated. Thanks
-----------------------
;+
; Postscript output
;-
Set_Plot, "ps", /interpolate
Device, filename="temp.ps",/color, bits=8
map_set,90,0,0, /stereo,/isotropic,limit=[45,-180,90,180]
openr, unit,
filepath('worldelv.dat',SUB=['examples','data']),/get_lun
elev = bytarr(360,360) & new_elev = bytarr(360,360)
readu, unit, elev
close, unit
elev = shift(elev,180,0)
new_elev = map_image(elev,sx,sy,/bilin)
tv,new_elev,sx,sy
map_grid, glinestyle=0,glinethick=1,charsize=1.2,
/label,color=255
contour,temp_field,lon,lat,NLEVELS = 8,/FOLLOW,/overplot,
color=203
Device, /Close
end
------------------------------------------------------------ -------
| |
Don Stark | ,/7_ |
| / _`, |
Naval Research Lab, Code 7322 | (.)\) \|_ |
Bay St. Louis, MS 39529 | 0 /^~' |
--------------------------------| |
e-mail: stark@nrlssc.navy.mil | |
--------------------------------| |
Phone: (601) 688-4151 work | ' )( ` |
(601) 688-4759 fax | ~~~~~~~~~~~'' ``~~~~~~~~~~~~ |
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