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[Octave-bug-tracker] [bug #32310] ginput does not return graph coordinat
From: |
John W. Eaton |
Subject: |
[Octave-bug-tracker] [bug #32310] ginput does not return graph coordinates |
Date: |
Mon, 31 Jan 2011 21:37:12 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20110107 Iceweasel/3.5.16 (like Firefox/3.5.16) |
URL:
<http://savannah.gnu.org/bugs/?32310>
Summary: ginput does not return graph coordinates
Project: GNU Octave
Submitted by: jwe
Submitted on: Mon 31 Jan 2011 09:37:11 PM GMT
Category: Plotting with OpenGL
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: dev
Operating System: GNU/Linux
_______________________________________________________
Details:
Using ginput with the fltk graphics toolkit does not seem to produce values
that are graph coordinates. The dynamic values of the mouse pointer position
at the bottom of the window also do not seem to be graph coordinates, which is
not what I was expecting.
For example, try this
graphics_toolkit fltk
line
grid on
[a,b,c] = ginput (1)
then place the cursor at (0.6, 0.6) and click. For me, ginput returns
a = 0.59234
b = 0.54267
c = 1
and the dynamic coordinate display at the bottom of the windo shows something
similar. I don't think I was that far off the (0.6, 0.6) grid/line
intersection.
_______________________________________________________
Reply to this item at:
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