DERT is an open source software tool for exploring NASA's digital terrain models in 3D
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README.md

Desktop Exploration of Remote Terrain

Desktop Exploration of Remote Terrain (DERT) is a software tool for exploring large Digital Terrain Models (DTM) in 3D. It aids in understanding topography and spatial relationships of terrain features, as well as performing simple analysis tasks relevant to the planetary science community.

DERT was developed by the Autonomous Systems and Robotics Area of the Intelligent Systems Division at NASA Ames Research Center. It leverages techniques implemented for science planning support applications provided to a number of NASA missions including Phoenix Mars Lander (PML) and Mars Science Laboratory (MSL).

DERT was funded by the Mars Reconnaissance Orbiter (MRO) mission and developed in collaboration with members of the MRO Context Camera (CTX) science team. DERT is licensed under the NASA Open Source Agreement (NOSA).

See demonstrations of DERT here.

Find out more . . .

Prebuilt releases are available on the releases tab for this site. Additionally, versions that include the JPL SPICE kernels as well as some prebuilt landscapes are available here. These releases are built with the Java 1.8 JDK so the corresponding JRE is required to run them.

Contributions

We are not adding contributors at this time. However, we welcome your feedback. Please let us know of any issues you find by submitting them to this site.

LICENSE

DERT is a viewer for digital terrain models created from data collected during NASA missions.

DERT is released under the NASA Open Source Agreement (NOSA) found in the “LICENSE” folder where you downloaded DERT.

DERT includes 3rd Party software. The complete copyright notice listing for DERT is:

Copyright © 2015 United States Government as represented by the Administrator of the National Aeronautics and Space Administration. No copyright is claimed in the United States under Title 17, U.S.Code. All Other Rights Reserved.

Desktop Exploration of Remote Terrain (DERT) was written with the aid of a number of free, open source libraries. These libraries and their notices are listed below. Find the complete third party license listings in the separate “DERT Third Party Licenses” pdf document found where you downloaded DERT in the LICENSE folder.

JogAmp Ardor3D Continuation, Copyright © 2008-2012 Ardor Labs, Inc.

JOGL, Copyright 2010 JogAmp Community. All rights reserved.

JOGL Portions Sun Microsystems, Copyright © 2003-2009 Sun Microsystems, Inc. All Rights Reserved. 
JOGL Portions Silicon Graphics, Copyright © 1991-2000 Silicon Graphics, Inc. 
Light Weight Java Gaming Library Project (LWJGL), Copyright © 2002-2004 LWJGL Project All rights reserved. 
Tile Rendering Library - Brain Paul, Copyright © 1997-2005 Brian Paul. All Rights Reserved. 
OpenKODE, EGL, OpenGL, OpenGL ES1 & ES2, Copyright © 2007-2010 The Khronos Group Inc. 
Cg, Copyright © 2002, NVIDIA Corporation. 
Typecast - David Schweinsberg, Copyright © 1999-2003 The Apache Software Foundation. All rights reserved. 
PNGJ - Herman J. Gonzalez and Shawn Hartsock, Copyright © 2004 The Apache Software Foundation. All rights reserved. 
Apache Harmony - Open Source Java SE, Copyright © 2006, 2010 The Apache Software Foundation.

GlueGen, Copyright © 2010 JogAmp Community. All rights reserved.

GlueGen Portions - Sun Microsystems, Copyright © 2003-2005 Sun Microsystems, Inc. All Rights Reserved.

Guava, Copyright © 2010 The Guava Authors.

XStream, Copyright © 2003-2006, Joe Walnes, Copyright © 2006-2009, 2011 XStream Committers. All rights reserved.

SPICE, Copyright © 2003, California Institute of Technology. U.S. Government sponsorship acknowledged.

LibTIFF, Copyright © 1988-1997 Sam Leffler, Copyright © 1991-1997 Silicon Graphics, Inc.

PROJ.4, Copyright © 2000, Frank Warmerdam.

Disclaimers

No Warranty: THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY KIND,
EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
THAT THE SUBJECT SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY
WARRANTY THAT THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE. THIS AGREEMENT
DOES NOT, IN ANY MANNER, CONSTITUTE AN ENDORSEMENT BY GOVERNMENT AGENCY OR ANY
PRIOR RECIPIENT OF ANY RESULTS, RESULTING DESIGNS, HARDWARE, SOFTWARE PRODUCTS OR
ANY OTHER APPLICATIONS RESULTING FROM USE OF THE SUBJECT SOFTWARE.  FURTHER,
GOVERNMENT AGENCY DISCLAIMS ALL WARRANTIES AND LIABILITIES REGARDING THIRD-PARTY
SOFTWARE, IF PRESENT IN THE ORIGINAL SOFTWARE, AND DISTRIBUTES IT "AS IS."

Waiver and Indemnity:  RECIPIENT AGREES TO WAIVE ANY AND ALL CLAIMS AGAINST THE UNITED
STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY PRIOR
RECIPIENT.  IF RECIPIENT'S USE OF THE SUBJECT SOFTWARE RESULTS IN ANY LIABILITIES,
DEMANDS, DAMAGES, EXPENSES OR LOSSES ARISING FROM SUCH USE, INCLUDING ANY DAMAGES
FROM PRODUCTS BASED ON, OR RESULTING FROM, RECIPIENT'S USE OF THE SUBJECT SOFTWARE,
RECIPIENT SHALL INDEMNIFY AND HOLD HARMLESS THE UNITED STATES GOVERNMENT, ITS
CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY PRIOR RECIPIENT, TO THE EXTENT
PERMITTED BY LAW.  RECIPIENT'S SOLE REMEDY FOR ANY SUCH MATTER SHALL BE THE IMMEDIATE,
UNILATERAL TERMINATION OF THIS AGREEMENT.