xgetech
=======

get the current graphics scale



Calling Sequence
~~~~~~~~~~~~~~~~


::

    [wrect,frect,logflag,arect]=xgetech()




Arguments
~~~~~~~~~

:wrect,frect real vectors.
: :logflag string of size 2 "xy".
:



Description
~~~~~~~~~~~

`xgetech` returns the current graphics scale (of the current window).
The rectangle [xmin,ymin,xmax,ymax] given by `frect` is the size of
the whole graphics window. The plotting will be made in the region of
the current graphics window specified by `wrect`.

`wrect=[x,y,w,h]` (upper-left point, width, height) describes a region
inside the graphics window. The values in `wrect` are specified using
proportion of the width and height of the graphics window:

`wrect=[0 0 1 1]` means that the whole graphics window is used.

`wrect=[0.5 0 0.5 1]` means that the graphics region is the right half
of the graphics window.

`logflag` is a string of size 2 "xy", where x and y can be "n" or "l".
"n" stands for normal (linear) scale and "l" stands for logscale. x
stands for the x-axis and y stands for the y-axis.

`arect=[x_left, x_right,y_up,y_down]` gives the frame size inside the
subwindow. The graphic frame is specified (like `wrect`) using
proportion of the width or height of the current graphic subwindow.
Default value is `1/8*[1,1,1,1]`. If `arect` is not given, current
value remains unchanged.



Sample
~~~~~~



Examples
~~~~~~~~


::

    // first subwindow 
    `xsetech`_([0,0,1.0,0.5])
    `plot2d`_()
    // then xsetech is used to set the second sub window 
    `xsetech`_([0,0.5,1.0,0.5])
    `grayplot`_()
    // get the graphic scales of first subwindow 
    `xsetech`_([0,0,1.0,0.5])
    [wrect,frect,logflag,arect]=xgetech();
    // get the graphic scales of second subwindow 
    `xsetech`_([0,0.5,1.0,0.5])
    [wrect,frect,logflag,arect]=xgetech();




See Also
~~~~~~~~


+ `xsetech`_ set the sub-window of a graphics window for plotting


.. _xsetech: xsetech.html