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CGContour with and without cell_fill keyword [message #89925]

Mon, 29 December 2014 09:03

envi35@yahoo.ca
Messages: 48
Registered: March 2005

Member

Hi all, I'm using CGContour to make maps of vegetation index. I found my maps look quite different when I plot with or without the /cell_fill keyword as in the following lines:

CGContour,lai,lon,lat,/cell_fill,c_colors=c_colors,Levels=us erLevels,max_value=dmax,min_value=dmin,C_CHARTHICK=2,/overpl ot, Color=black,missingvalue=nan

CGContour, lai,lon,lat,c_colors=c_colors,Levels=userLevels,max_value=dm ax,$
min_value=dmin,C_CHARTHICK=2,/overplot, Color=black,missingvalue=nan

I know David suggests using cell_fill for projected maps or data with missing values, I thought that's just for making the map looks good, e.g. without holes etc., but not different maps.

The map without the cell_fill keyword shows larger values (more realistic to me)than the map with the keyword. Does anybody knows why? Which map is correct?

Thanks very much,
Jenny

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[Message index]

		CGContour with and without cell_fill keyword By: envi35@yahoo.ca on Mon, 29 December 2014 09:03
		Re: CGContour with and without cell_fill keyword By: David Fanning on Mon, 29 December 2014 09:32
		Re: CGContour with and without cell_fill keyword By: envi35@yahoo.ca on Mon, 29 December 2014 10:14
		Re: CGContour with and without cell_fill keyword By: David Fanning on Mon, 29 December 2014 11:49

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