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Re: how to use map_set in object graphics programming [message #45777 is a reply to message #45770]

Tue, 04 October 2005 13:29

Mark Hadfield
Messages: 783
Registered: May 1995

Senior Member

shengbaojun wrote:
>> I hope I can use map_set to draw a background map in
> IDLWidgetContro when IDLWidgetControl's Graphics_Level is set to 2.

A GRAPHICS_LEVEL of 2 implies an Object Graphics draw widget, so you
cannot use MAP_SET, which is a Direct Graphics command.

For examples of creating projected maps in Object Graphics, see the
documentation for the MAP_PROJ_FORWARD function. Unfortunately it's a
bit more verbose and complicated than the Direct Graphcis mapping functions.

The Imap tool uses Object Graphics & map projections.

--
Mark Hadfield "Kei puwaha te tai nei, Hoea tahi tatou"
m.hadfield@niwa.co.nz
National Institute for Water and Atmospheric Research (NIWA)

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[Message index]

		Re: how to use map_set in object graphics programming By: Rick Towler on Wed, 05 October 2005 09:29
		Re: how to use map_set in object graphics programming By: shengbaojun on Wed, 05 October 2005 07:25
		Re: how to use map_set in object graphics programming By: Mark Hadfield on Tue, 04 October 2005 13:29
		Re: how to use map_set in object graphics programming By: shengbaojun on Tue, 04 October 2005 07:00
		Re: how to use map_set in object graphics programming By: Rick Towler on Mon, 03 October 2005 09:12
		Re: how to use map_set in object graphics programming By: shengbaojun on Fri, 07 October 2005 17:18
		Re: how to use map_set in object graphics programming By: shengbaojun on Fri, 07 October 2005 17:17

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