zinput

Ginput with zoom-in, select, all-zoom out

Description

ZINPUT - Graphical input from mouse with zoom
  
[OUT_REGS] = ZINPUT(N) gets N points or regions from the current axes and returns the X- and Y-ranges in a length Nx4 matrix OUT_REGS.
The cursor can be positioned using the mouse. Data points are entered by pressing the right mouse button (OUT_REGS(1)==OUT_REGS(2)==point_X), the region of the current axis are selected with the middle button, left button is for zooming, single cklick zooms in, click-and drag zooms to selected region (and doubble-click should zoom out - this feature is pending).
Any key on the keyboard except carriage return zooms out to the orignal axis. Carriage return/Enter, which terminates the input before N points are entered.
   
[OUT_REGS] = ZINPUT gathers an unlimited number of points until the return key is pressed.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
zoom2cursor
This submission has inspired the following:
ginput2.m v3.1 (Nov 2009)

• MATLAB release: MATLAB 6.5.1 (R13SP1)

[Masoud]

Zoom in and Zoom out are good but the program does not return the coordinates of the selected pixel properly.