Re: Text extent property

[Søren Hauberg]

lor, 06 03 2010 kl. 18:41 +0000, skrev Michael Goffioul:
> BTW, could anybody check a few things for me on Matlab?
> - does "extent" property takes text rotation into account

>> th = text (1, 1, 'Why am I using Matlab, when I could be using
Octave?');
>> get (th, 'extent')

ans =

    0.9954    0.9708    0.7218    0.0496

>> set (th, 'Rotation', 45)
>> get (th, 'extent')

ans =

    0.7816    0.9329    5.5172    1.4052

So, it looks like rotation is taken into account.

> - what's the width and height values of "extent" for text using
> "data" units and the axes is in 3D view?

>> plot3 ([1, 100], [1, 100], [1, 100]) 
>> th = text (1, 1, 1, 'Why am I using Matlab, when I could be using
Octave?')
>> get (th, 'extent')

ans =

     0     0     0     0

>> get (th, 'Units')

ans =

data



> - when "units" is set to something different than "data",

>> set (th, 'Units', 'Pixels')
>> get (th, 'extent')

ans =

   190    -5   314    17

>> set (th, 'Units', 'Normalized')
>> get (th, 'extent')

ans =

    0.4345   -0.0175    0.7218    0.0496

>> set (th, 'Units', 'Inches')    
>> get (th, 'extent')         

ans =

    2.1000   -0.0667    3.4889    0.1889

>> set (th, 'Units', 'Centimeters')
>> get (th, 'extent')              

ans =

    5.3299   -0.1692    8.8550    0.4794

>> set (th, 'Units', 'Points')     
>> get (th, 'extent')

ans =

  151.2000   -4.8000  251.2000   13.6000

>> set (th, 'Units', 'Characters')
>> get (th, 'extent')             

ans =

   31.5000   -0.4286   52.3333    1.2143

>> set (th, 'Units', 'Data')
>> get (th, 'extent')       

ans =

   31.5000   -0.4286   52.3333    1.2143

So, it seems that 'extent' doesn't change when you set the units to
'Data'.

> what's the "z" value of "position"?

>> plot3 ([1, 100], [1, 100], [1, 100])
>> th = text (1, 1, 1, 'Why am I using Matlab, when I could be using
Octave?');
>> get (th, 'Position')

ans =

     1     1     1

>> get (th, 'Units')

ans =

data

>> set (th, 'Units', 'Pixels')
>> get (th, 'Position')

ans =

   190     4     0

>> set (th, 'Units', 'Normalized')
>> get (th, 'Position')

ans =

    0.4345    0.0087         0

>> set (th, 'Units', 'Inches')     
>> get (th, 'Position')

ans =

    2.1000    0.0333         0

>> set (th, 'Units', 'Centimeters')
>> get (th, 'Position')

ans =

    5.3299    0.0846         0

>> set (th, 'Units', 'Points')     
>> get (th, 'Position')

ans =

  151.2000    2.4000         0

>> set (th, 'Units', 'Characters') 
>> get (th, 'Position')

ans =

   31.5000    0.2143         0

>> set (th, 'Units', 'Data')       
>> get (th, 'Position')

ans =

    0.7428    0.9317    0.6349


Hope that helps
Soren