The Path Planning Graphical User Interface is a computer program that, as its name indi- cates, generates a graphical user interface (GUI) for software that plans paths for robotic vehicles (rovers) to be used in exploration of remote planets. This GUI program is designed for use in conjunction with the A* Search Algorithm, which plans the path of a rover between starting and ending positions specified by the user. With the help of the GUI, the user can change rover positions interactively and can modify the parameters used by the path-planning search algorithm. Prior to the development of this GUI program, it was typical practice for engineers to hand-code path-planning algorithms in order to encode parameters particular to their application, so that testing with different parameters and terrain maps was tedious and costly. The present GUI program makes it easy for users to test their path-planning logic by downloading or modifying current terrain environments and search parameters, without need for a costly learning process.

This program was written by Ayanna Howard of Caltech for NASA’s Jet Propulsion Laboratory.

This software is available for commercial licensing. Please contact Don Hart of the California Institute of Technology at (818) 393- 3425. Refer to NPO-30320.

This Brief includes a Technical Support Package (TSP).
GUI Program for Planning Paths of Cover

(reference NPO-30320) is currently available for download from the TSP library.

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This article first appeared in the July, 2002 issue of NASA Tech Briefs Magazine.

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