README.TXT Sept. 24, 2012

Model Viewer

A Program For Three-Dimensional Visualization of Ground-water Model Results

Version 1.6

for Windows 7, Vista, XP, 2000, NT 4.0, 98, 95

TABLE OF CONTENTS

A. SYSTEM REQUIREMENTS B. DISTRIBUTION FILE C. DOCUMENTATION D. INSTALLING E. RUNNING THE SOFTWARE F. UNINSTALLING G. REVISION HISTORY

A. SYSTEM REQUIREMENTS

To installation and run the software, the following are necessary:

- Windows 7 Vistas, XP, 2000, NT 4.0, 98, or 95 - A minimum processor speed of 300 Megahertz - A minimum of 64 Megabytes of Random Access Memory (RAM). Memory requirement depends on the model size. A large model may require several hundred Megabytes. - A monitor with at least 16-bit color depth. 24-bit color is recommended. - The responsiveness of the program to user interaction increases with the speed of the graphics board. A graphics board with OpenGL acceleration is highly recommended. - The program requires 10 Megabytes of hard disk space.

B. DISTRIBUTION FILE

The following distribution file is currently available:

modview1_5.exe - for Windows7 Vistas, XP, 2000, NT 4.0, 98, or 95

C. DOCUMENTATION

Hsieh, P.A., and Winston, R.B., 2002, User�s Guide To Model Viewer, A Program For Three-Dimensional Visualization of Ground-water Model Results: U.S. Geological Survey Open-File Report 02-106, 18 p.

A PDF version of this report is included with the software distribution.Please note that this report was released with Model Viewer version 1.0.Users should refer to the online help pages for instructions on how touse Model Viewer version 1.5.

D. INSTALLING

To install the software, double-click modview1_1.exe. This willexecute the installation program. Follow the directions on the screen.

By default, the software is installed in the directoryC:\Program Files\USGS\Model Viewer 1.5. This is the recommended installation directory, but you may use other directories or disk drives.

E. RUNNING THE SOFTWARE

After installation as described above, the software can be run as follows:

1. Click the "Start" button2. Select "Programs"3. Select "Model Viewer 1.6"4. Select "Model Viewer"

F. UNINSTALLING

The following procedure is used to uninstall the software:

1. Click the "Start" menu, then click "Settings", and finally click "Control Panel". The Control Panel is displayed.2. Double Click on "Add/Remove Programs". The "Add/Remove Programs Properties" dialog box is displayed.3. From the list of installed programs, select "Model Viewer 1.2".4. Click "Add/Remove". Windows will uninstall the application.

G. REVISION HISTORYVersion 1.0 Nov. 4, 2002 Initial Release

Version 1.1 Oct. 7, 2003 A line drawing contained in an ESRI Shapefile or a DXF file may be displayed on the top surface of the model grid or on a flat plane above the model grid. Display of particle locations in MODFLOW-2000 GWT and MOC3D Support the final release of SUTRA version 2D3D.1. The beta version of this model is no longer supported. A number of bugs in Model Viewer 1.1 has been fixed.

Version 1.2 June 25, 2008 Support for PHAST has been added. Support for _SOS files produce by UCODE-2005 has been added. Support for SUTRA 2.1 has been added. Several bugs in Model Viewer 1.1 have been fixed.

Version 1.3 Jan. 22, 2009Model Viewer has been altered to allow the display of heads and drawdowns saved as binary files with double-precision real numbers.A bug in reading the SUB package input files has been fixed.Fixed a bug in reading SUTRA input files.Added drains model feature for phast. Added double-click functionality to ModelFeaturesDlg list boxes.

Version 1.4 Oct. 1, 2010Added support for SUTRA 2.2

Fixed a bug with display of vectors in PHAST.Fixed a bug with display of porosity in SUTRA.Fixed reading SFR files when new options used.Added the ability to make an animation that does not advance with time.Fixed display of time units in MODFLOW models.Fixed display of log transformed vectors when some cells are inactive.Added support for MODPATH version 5 pathline files.Added capability of log-transforming color values for pathlines.Added capability of reading MT3DMS double-precision binary files.Added the abililty to display vectors for double-precision MODFLOW models.

version 1.5 April 20, 2012Fixed bug that caused Model Viewer to quit improperly when models with numerous parameter instances are used.Modified color bar to allow it's data to come from either the active data set or the pathlines.Made changes to allow Model Viewer to read the input files for the LAK and SFR packages that use the revised input format in MODFLOW-2005 version 1.9.

version 1.6 September 24, 2012Model Viewer can now display pathlines generated by MODPATH version 6.With MODFLOW-2000 and MODFLOW-2005 models, Model Viewer can now display data from external files in addition to files generated by MODFLOW.