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display GeoTIFF image automatically using cgGeoMap [message #93698]

Mon, 03 October 2016 12:10

Libo Wang
Messages: 6
Registered: October 2009

Junior Member

Hi all,

I just found out that David has added some nice routines to display a GeoTIFF easily. So I thought I could just copy over his example lines at the end of this link and give a try: http://www.idlcoyote.com/map_tips/tiffoverlay.html,

filename = 'AF03sep15b.n16-VIg.tif'
cgDisplay, 500, 500, WID=5, Title='Outline cgMap Object', $
XPOS=50, YPOS=50
alberMap = cgGeoMap(filename, IMAGE=tiffImage, /OnImage)
scaled = BytScl(tiffImage, Top=253)+1
index = Where(scaled EQ 1)
scaled[index] = 0B
TVLCT, cgColor('ivory', /Triple), 0
cgLoadCT, 33, NColors=253, Bottom=1
cgImage, scaled, POSITION=pos, /KEEP_ASPECT

However,I got the following syntax errors when compile:
alberMap = cgGeoMap(filename, IMAGE=tiffImage, /OnImage)
^
% Syntax error.

This is probably quite obvious to you, but I have never used Object graphics in IDL before. Can somebody point out why I get the syntax error?

Thanks in advance!
Jenny

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[Message index]

		display GeoTIFF image automatically using cgGeoMap By: Libo Wang on Mon, 03 October 2016 12:10
		Re: display GeoTIFF image automatically using cgGeoMap By: wlandsman on Mon, 03 October 2016 18:52
		Re: display GeoTIFF image automatically using cgGeoMap By: Libo Wang on Tue, 04 October 2016 06:36

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