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Re: cgArrow Solid keyword with a cgWindow [message #83929 is a reply to message #83928]

Thu, 18 April 2013 07:50

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

>> I've found that calling cgArrow with the /SOLID and /AddCmd keyword
doesn't work in adding a (solid) arrow to a resizable window. I think
this is because the call to cgColorFill in cgArrow (lines 233 and 234)
does not allow the parameter to be passed. I tried to fix it by adding
'_Extra=extra' to the cgColorFill call, but that also doesn't work
because /AddCmd is not allowed in the call to cgColorFill.
>
> Well, something is screwy, for sure. The solid arrowhead is being drawn,
> but not in the right window.
>
> I do notice that this works correctly, if you use the WINDOW keyword, as
> the documentation specifies, rather than the ADDCMD keyword, which is
> not defined for this routine. :-)
>
> I presume this has something to do with the ADDCMD keyword being passed
> along with _EXTRA. It looks to me like Coyote wrote this routine. I'll
> see if I can get it sorted out.

The simplest solution seemed to be to just define an ADDCMD keyword to
this routine to make the interface more consistent with the rest of the
Coyote Graphics library. You can find the updated routine here:

http://www.idlcoyote.com/programs/cgarrow.pro

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		Re: cgArrow Solid keyword with a cgWindow By: seanelvidge on Fri, 19 April 2013 12:54
		Re: cgArrow Solid keyword with a cgWindow By: David Fanning on Fri, 19 April 2013 05:22
		Re: cgArrow Solid keyword with a cgWindow By: seanelvidge on Fri, 19 April 2013 03:01
		Re: cgArrow Solid keyword with a cgWindow By: David Fanning on Thu, 18 April 2013 08:47
		Re: cgArrow Solid keyword with a cgWindow By: David Fanning on Thu, 18 April 2013 08:34
		Re: cgArrow Solid keyword with a cgWindow By: Phillip Bitzer on Thu, 18 April 2013 08:24
		Re: cgArrow Solid keyword with a cgWindow By: Fabzi on Thu, 18 April 2013 08:08
		Re: cgArrow Solid keyword with a cgWindow By: David Fanning on Thu, 18 April 2013 07:50
		Re: cgArrow Solid keyword with a cgWindow By: David Fanning on Thu, 18 April 2013 06:54

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