The ESG View Wizards give you "one-click" access to common
functions for zooming and geolinking images.  The following
functions are included:

  - Zoom to All Datasets, Previous Zoom, Zoom to Current Dataset
  - View image at 1:2, 1:1 and 2:1 resolutions (zoom factors)
  - Geolink image windows
  - Unlink all image windows
  - Close all image windows

These wizards are provided free of charge and may be distributed
freely to anyone. No support will be given (but none should be needed).

------------------------------------------------------------------------------
Notes on Wizard Use and Behavior
------------------------------------------------------------------------------
  - The 1:2, 1:1 and 2:1 view wizards are similar to the "Dataset
    cells per pixel" setting on the Geoposition/Geolink dialog tab.
    One difference is that they keep the current image center point.
    A 1:1 view displays one screen pixel per image pixel (sometimes
    considered the optimal viewing resolution).
  - The 1:2, 1:1 and 2:1 view wizards on the PC platform will set
    an approximate 1:1, etc. zoom factor, but not exact. (It might
    0.98:1 for example.) This is due to taking into account the width
    of scroll bars on image windows which vary slightly with the display
    resolution setting.  On UNIX 5.5, the zoom factors are exact.
  - The 1:2, 1:1 and 2:1 view wizards must close the current image
    window, reopen a new one, and then redisplay the image. This means
    that any geolinking is lost, so they should not be used when
    picking GCPs. The new windows are always opened in the upper-left 
    corner of the screen (not in their original position).
  - Previous Zoom (undo) does not revert to zooms created by the
    1:2, 1:1 and 2:1 view wizards because these are not considered
    "zoom" functions by ER Mapper.
  - The Window and Screen Geolink modes link all windows at once,
    so the current active window controls the extents of the others.
    The Overview Zoom and Roam modes link only the active window
    (others are linked automatically).
  - Geolinking windows on the UNIX 5.5 version of ER Mapper does
    not automatically update the images (you must click GO, just
    the same as in the ER Mapper interface). Linked images are 
    automatically updated in version 6.x.

------------------------------------------------------------------------------
PC (ER Mapper 6.x) INSTALLATION INSTRUCTIONS
------------------------------------------------------------------------------
Follow these instructions to install the ESG View Wizards
for ER Mapper on the PC Windows platform.

1) Close all ER Mapper applications.

2) Copy the file "esgvwiz10.exe" into a temporary directory on 
   your hard drive.

3) Double-click on the .exe file in Windows Explorer.  The WinZip 
   Self Extractor dialog displays. Be sure that "Overwrite Files
   Without Prompting" is checked.

4) In the "Unzip to folder" field, enter the directory location 
   of ER Mapper on your system. Make sure the drive letter is
   correct, for example C: or D:, and that you specify the full
   path with ending backslash (e.g. C:\ERMAPPER60\). Then click 
   "Unzip" to install the wizard files into the appropriate 
   ER Mapper directories.

5) Click Close on the WinZip Self Extractor dialog when finished.

6) Restart ER Mapper. Then select "ESG View Wizards" from the
   Toolbars menu to display the wizard toolbar buttons.

------------------------------------------------------------------------------
UNIX (ER Mapper 5.5) INSTALLATION INSTRUCTIONS
------------------------------------------------------------------------------
Follow these instructions to install the ESG View Wizards
for ER Mapper 5.5 on the Sun Solaris or SGI IRIX platforms.

1) Close all ER Mapper applications. (Check the license status 
   via the Utilities menu for remote users.)
2) Open a terminal window.
3) Copy the file "esgvwiz10.tar" into a temporary directory on your 
   system.
4) Change to the ER Mapper install directory (e.g., cd /usr/ermapper).
5) Issue the following command to install the wizards:

    tar xvf <tempdir>esgvwiz10.tar

   where "tempdir" is the temp directory in step 3.
   (For example, /home/test/esgvwiz10.tar) 

6) Restart ER Mapper, then select ESG View Wizards from the Toolbars
   menu to display the wizard toolbar buttons.