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Contouring on Map Projections ? [message #1027]

Mon, 24 May 1993 19:35

ftacn
Messages: 7
Registered: May 1993

Junior Member

I'm trying to overlay a contour onto a projected image. First I
"warp" the image using the MAP_IMAGE(image,startx,starty,/bilin)
command. I then TV the warped image. Now what I'd like to do is
overlay a contour plot on top of the warped image. I can't seem
to get it to work. I've tried to emulate what the User's Guide
does (19-14 & 19-15), but it gives me incompatible array errors.
The data is structured as follows:

IMG=fltarr(360,180) the image to be warped, the first index is
the longitude (0=-179), the second the latitude
(0=-89).

LAT=fltarr(360,180) the latitude for each pixel (same format as above)

LON=fltarr(360,180) the longitude for each pixel.

Anybody have any suggestions,
Andy
FTACN@acad3.alaska.edu

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