Survex is a software suite to process, view, and print cave survey data. Survex is cross-platform running under Linux, Unix, Mac OS X, Microsoft Windows). It can deal with extremely large and complex datasets and can read survey data from many sources.
Survex is capable of processing extremely complex caves very quickly and has a very effective, real-time cave viewer which allows you to rotate, zoom, and pan the cave using mouse or keyboard.
Survex includes English, French, German, Portuguese, Catalan, Spanish, Slovak, and Romanian internationalisations.
Survex is used by many survey projects around the world, such as the Ogof Draenen survey, the Easegill resurvey project, Austria – Dachstein, the OFD survey, the OUCC Picos expeditions, and the Hong Meigui China expeditions.
Features include:
- Fast cave viewer with fast redraw and bank-switching techniques.
- Hierarchical survey station naming.
- Fast processing of survey data in a wide range of formats, aided by sophisticated network simplification techniques.
- Data Processing:
- Cave complexity limited only by available memory.
- Include files allow projects for survey data management.
- No restrictions on the order survey data.
- Support for a wide range of data styles, including “interleaved data”, backsights, underwater surveys performed with a depth gauge, and unsurveyed visual connections.
- Network reduction with loop closure errors distributed by least squares. Standard errors and closure errors are reported. There’s also an experimental gross error (blunder) detector.
- Data can be partially processed, loops closed, and then more data processed which will not move the existing stations. This is useful for adding a loop to an existing map without redrawing the whole thing.
- All instruments (e.g. tape, compass, clino, topofil, depth gauge) have optional scale and zero corrections.
- Special handling for plumbed legs (where the clino correction doesn’t apply).
- Magnetic deviation separately specifiable to compass calibration (useful for survey projects lasting many years).
- Support for most input units: metres, feet, degrees, mils, grads, minutes, and also user specifiable units. Percent gradient is also supported.
- Each measurement can have its Standard Deviation specified separately (for specifying the ‘grade’ of a section, giving special treatment to an odd or suspicious measurement, or feeding in measurements derived from techniques such as radiolocation).
- Internationalisation support – translations supplied for English, French, German, Spanish, Catalan, Portuguese, Italian, Slovak, Romanian, and US English.
- Support for printing using native drivers for PostScript, ESC/P (Epson, IBM Proprinter, Canon BJs and compatibles), PCL (HP Laserjets, Deskjets and compatibles), and HPGL (HP pen plotters and compatibles).
- Colour printing supported when using the included Postscript driver
Website: survex.com
Support: Documentation
Developer: Olly Betts, Mark Shinwell, Wookey, and many contributors
License: GNU General Public License v2.0
Survex is written in C++ and C. Learn C++ with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.
| Popular series | |
|---|---|
 | The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions. |
 | Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information. |
 | Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS. |
 | Awesome Free Linux Games Tools showcases a series of tools that making gaming on Linux a more pleasurable experience. This is a new series. |
 | Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. We've written reviews of more than 40 self-hosted apps. All are free and open source. |
 | New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux. |
 | Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities. |
 | Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users. |
 | Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine. |
 | Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal. |
 | Saving Money with Linux looks at how you can reduce your energy bills running Linux. |
 | Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum. |
 | Now and Then examines how promising open source software fared over the years. It can be a bumpy ride. |
 | Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged. |
 | Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery. |
 | Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers. |
 | Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series. |
 | These best free books accelerate your learning of every programming language. Learn a new language today! |
 | These free tutorials offer the perfect tonic to our free programming books series. |
 | Linux Around The World showcases usergroups that are relevant to Linux enthusiasts. Great ways to meet up with fellow enthusiasts. |
 | Stars and Stripes is an occasional series looking at the impact of Linux in the USA. |