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Re: XYOUTS and ORIENTATION keyword: use negative values to anchor on end of string [message #93574 is a reply to message #93573]

Wed, 24 August 2016 11:45

wlandsman
Messages: 743
Registered: June 2000

Senior Member

I don't see this (if I understand you right). In the code sample below, the text is anchored at the end of the string for both orient=45 and orient = -45
--Wayne

IDL> plot,indgen(10)
IDL> xyouts,3,3,'This is text',orient=45,align=1
IDL> xyouts,3,3,'This is text',orient=-45,align=1
IDL> !version
{
"ARCH": "x86_64",
"OS": "darwin",
"OS_FAMILY": "unix",
"OS_NAME": "Mac OS X",
"RELEASE": "8.5.1",
"BUILD_DATE": "Nov 14 2015",
"MEMORY_BITS": 64,
"FILE_OFFSET_BITS": 64
}

On Wednesday, August 24, 2016 at 2:31:43 PM UTC-4, Edward Hyer wrote:
> IDL folks,
>

> There's a pretty good chance I have this wrong, but I'm at least pretty sure the documentation is also wrong. If someone knows the definitive answer, please post it here for everyone.
>
> Basically, when ORIENTATION is used, setting ALIGNMENT=1.0 will still anchor the text at the start, meaning the position argument passed to XYOUTS will be the start of the string. However, if a negative value is passed to ORIENTATION, the position argument will be the end of the string, which IMO is what ALIGN=1 should do. This does not appear to be documented in the XYOUTS docs or the documentation for the ORIENTATION graphic keyword.
>
> --Edward H.

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[Message index]

		XYOUTS and ORIENTATION keyword: use negative values to anchor on end of string By: MarioIncandenza on Wed, 24 August 2016 11:31
		Re: XYOUTS and ORIENTATION keyword: use negative values to anchor on end of string By: wlandsman on Wed, 24 August 2016 11:45

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