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ENVI: Overlay in 3D SurfaceView [message #71731] Mon, 19 July 2010 10:40 Go to next message
Antoine Lucas is currently offline  Antoine Lucas
Messages: 1
Registered: July 2010
Junior Member
Hi Folks,

I would like to know how to add overlay (e.g. grid, north arrow, scale
bar, colorbar...) in the 3d surfaceview of ENVI. I found how to do
that for contour lines, but not for features previously mentioned.

Thank you for any feedback!
Re: ENVI: Overlay in 3D SurfaceView [message #91368 is a reply to message #71731] Mon, 06 July 2015 12:38 Go to previous message
Puneeth Shankar is currently offline  Puneeth Shankar
Messages: 21
Registered: June 2015
Junior Member
Hi Antoine,
I would start with a black and white colorbar to display a scale. For a north arrow in IDL I would use something like this:
p = convert_coord(-74.5, [40.2, 40.5], /TO_NORM)
Draw North arrow:
ARROW, p(0,0), p(1,0), p(0,1), p(1,1), /NORMAL
XYOUTS, -74.5, 40.1, 'North', ALIGNMENT=0.5
Hope this helps.

Cheers,
Puneeth
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