The term “ET Viewer” can refer to several different software applications depending on the industry. The most common tool explicitly named ET Viewer is a specialized bioinformatics program, but there are also data viewers with this name used in geography, Windows development, and manufacturing. 1. Bioinformatics: Evolutionary Trace Viewer (ETV)
In molecular biology, the Evolutionary Trace Viewer is a Java-based application used by scientists to map and visualize the evolutionary history of proteins. Developed primarily by the Lichtarge Lab at Baylor College of Medicine, it helps researchers identify critical functional sites in a protein’s structure.
How it works: It combines a protein’s phylogenetic tree (evolutionary history) with structural data from Protein Data Bank (.pdb) files.
Core Feature: It uses an “ET Wizard” to rank sequence residues by evolutionary importance, outputting an .etvx file.
Visualization: It renders a colored 3D molecular graph where top-ranked residues cluster together to visually reveal active binding surfaces. 2. Geographic Information Systems (GIS): ET Terrain Viewer
Developed by ET Spatial Techniques, the ET Terrain Viewer is a free, standalone GIS application designed to display and navigate spatial data in three dimensions.
3D Visualization: It allows users to take flat 2D maps and “drape” them over elevation models to see landscapes in 3D.
Supported Files: It reads common industry formats including ESRI Shapefiles, TIN datasets, and multiple raster formats (like .tif and Erdas Imagine .img).
Other Versions: The company also offers the ET Spatial Data Viewer (SDV), which is used for viewing attribute tables, performing SQL queries, and measuring lengths and areas on standard 2D geographic data. 3. Windows Software Development: ETViewer (WPP Tracing)
For software engineers working on Windows applications, ETViewer is a next-generation diagnostic utility.
Purpose: It serves as a specialized tool to collect, read, and analyze Windows Software Trace Preprocessor (WPP) traces.
Utility: Developers use it for low-overhead, high-performance debugging of system-wide events and software driver behavior. 4. Manufacturing & CAD Data: ETRAGE Viewer
In industrial design and manufacturing engineering, the ETRAGE Viewer is a secure, web-based document and drawing management tool.
Purpose: It allows non-engineering staff (like sales, purchasing, or shop floor workers) to view complex 3D CAD files without needing expensive design software.
Compatibility: It opens automated views generated from major CAD platforms like PTC Creo, SolidWorks, AutoCAD, and CATIA.
Which of these industries—bioinformatics, mapping/GIS, Windows software development, or CAD engineering—matches the specific ET Viewer you are looking to learn more about? ET Viewer – Evolutionary Trace – Lichtarge Lab
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