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Re: xyouts for iPlot? [message #55635 is a reply to message #55634]

Wed, 29 August 2007 09:23

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

Kenneth Bowman wrote:
> In article <1188352232.492045.316340@l22g2000prc.googlegroups.com>,
> pdoherty <pedoherty@earthlink.net> wrote:
>
[snip]
>> So, in as few words as possible, can someone tell me how to annotate a
>> plot I've made by calling iPlot from within my program?
>>
>> Sorry if this is a trivial problem, but I haven't figured it out.
>>
>
> You need to do something like this
>
> idAnnotate = itool_obj -> FindIdentifiers('*/ANNOTATION LAYER') ;Get annotation layer ID
> oAnnotate = itool_obj -> getByIdentifier(idAnnotate) ;Get annotation object
> oAnnotate -> add, OBJ_NEW('IDLitVisText', _STRING = 'This is a string', $ ;Add title in annotation plane
> ALIGNMENT = 0.5, $
> VERTICAL_ALIGNMENT = 1.0, $
> FONT_SIZE = 24, $
> LOCATION = [0.5, 0.5, 0.5])
>

Holy cow.

Would syntactic sugar be sufficient to avoid the first two calls? Why can't the interface
to add a text string do all the heavy lifting so the user doesn't have to necessarily know
about retrieving identifiers and objects and knowing the precise object name(s)?
('IDLitVisText'? Who came up with that oh so intuitive name?)

e.g.

PRO itool_xyouts, itool_obj, string, _extra=extra
idAnnotate = itool_obj -> FindIdentifiers('*/ANNOTATION LAYER')
oAnnotate = itool_obj -> getByIdentifier(idAnnotate)
oAnnotate -> add, OBJ_NEW('IDLitVisText', _STRING = string, _extra=extra)
END

At the very, IDL should provide the same basic functionality and *ease of use* for OG as
we have in DG.

cheers,

paulv

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[Message index]

		Re: xyouts for iPlot? By: pdoherty on Sat, 01 September 2007 18:42
		Re: xyouts for iPlot? By: David Fanning on Fri, 31 August 2007 20:17
		Re: xyouts for iPlot? By: David Fanning on Fri, 31 August 2007 06:03
		Re: xyouts for iPlot? By: pdoherty on Thu, 30 August 2007 16:48
		Re: xyouts for iPlot? By: Paul Van Delst[1] on Thu, 30 August 2007 07:00
		Re: xyouts for iPlot? By: Kenneth Bowman on Wed, 29 August 2007 12:45
		Re: xyouts for iPlot? By: Michael Galloy on Wed, 29 August 2007 10:53
		Re: xyouts for iPlot? By: David Fanning on Wed, 29 August 2007 09:36
		Re: xyouts for iPlot? By: Paul Van Delst[1] on Wed, 29 August 2007 09:23
		Re: xyouts for iPlot? By: Kenneth Bowman on Wed, 29 August 2007 08:02

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