Data Engineering Scripting Language Moves Beyond NASA


DESL is the Data Engineering Scripting Language, developed by ViGYAN. It provides a flexible command interface to its powerful underlying engine that can be used by the user to manipulate and visualize spreadsheet-style numerical data in a variety of ways. DESL is the sophisticated successor to the package known as HyperDAS.

DESL's origins are in the aeronautics industry, having been associated with NASA wind tunnel data reduction, and data manipulation and display. In such an environment, data is collected and stored in a "point by point" sequence. Such data, thus collected, can easily be dealt with the DESL software system.


Other engineering and experimental projects, which must deal with data of a similar form, can benefit equally well from the simple, effective building-block approach to managing data that DESL allows.


VGRID, Still a Vital Component of the NASA TetrUSS Software


VGRID is a robust, user-friendly computer program for the generation of three-dimensional unstructured (triangular surface and tetrahedral volume) grids in geometrically complex domains.


The base code (VGRID3D) was developed by ViGYAN, Inc. under a NASA Small Business Innovation Research (SBIR) contract. In the almost 30 years since completion of that project, considerable extensions to VGRID have been developed at NASA Langley Research Center.


VGRID is a key component to the NASA unstructured-grid software system TetrUSS, Used in conjunction with a graphical user interface utility, GridTool, and a grid post-processing program, POSTGRID, the VGRID system provides a reliable tool for the fast and convenient generation of unstructured grids around complex configurations. The code, in conjunction with USM3D, and post-processing visualization program, ViGPLOT has been widely used by many researchers and engineers from academia, industry, NASA, and other government agencies for the past several years.