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Re: Text extent implemented (partially)


From: Ben Abbott
Subject: Re: Text extent implemented (partially)
Date: Tue, 9 Mar 2010 09:01:19 -0500

On Mar 9, 2010, at 7:51 AM, Michael Goffioul wrote:

> On Tue, Mar 9, 2010 at 12:29 PM, Ben Abbott <address@hidden> wrote:
>> I played with this today. Looks good to me (works for fltk and gnuplot). 
>> However, I have some questions.
>> 
>> When you wrote ...
>> 
>>> The left and bottom are always set to the lower
>>> left corner of the axes box
>> 
>> I assume you meant;  "The left and bottom are always set to the lower left 
>> corner of the text's bounding box."?
> 
> I meant indeed the left and bottom value of the extent property, which is
> [left bottom width height]

I find it confusing to when there are multiple coordinate systems. Perhaps it 
is best to give an example?

For Matlab (left, bottom) of the text extent is with respect to the axes 
coordinate system, with the units specified by the text object.

>> plot(1:10)
>> h = text (5,5,'Hello World');
>> get (h, 'extent')

ans =

       4.9517       4.7522       1.3862      0.41983

The same example in Octave gives ...

octave:7> get (h, 'extent')
ans =

  -0.00000   0.00000   1.86636   0.52585

Ben



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