Therion
Therion is a tool for cave surveying.
This application archive survey data on computer in a form as close to
the original notes and sketches as possible and retrieve them in a
flexible and efficient way. This tool also draws up-to-date plan or
elevation maps.
Drawings are done over scans and can be distorted to fit the
centreline
data. Output is in single sheet or atlas style PDF or SVG files. All
data is stored in text files and a map editor (xtherion) is provided to
aid in the creation of the files.
Therion can also produce realistic 3D models, generated from
walls and
passage-heights. Output formats supported are Survex .3d files, VRML,
DXF, SVG, shapefiles, and the native .loc and older .thm (therion
model). Therion is compatible with Survex, and centreline data can be
stored in Survex or Therion form. Centreline data and sketches can be
imported from PocketTopo.
TeX and metapost are used to generate the images. libtk-img is needed
to use scans in formats other than GIF and PNM (such as PNG and JPEG).
Therion is a command-line application. It processes input
files, which include 2D maps—in text format, and creates files with 2D
maps or 3D model as the output.
Therion 5.3.11
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Price
Free to download
Size
2.5MB
License
GNU GPL v2
Developer
Stacho Mudrak, Martin Budaj
Website
therion.speleo.sk
System Requirements
TeX distribution~Tcl/Tk with BWidget (or optionally tkImg extension)
LCDF Tpetools
convert and identify from ImageMagick
Ghostscript
Support
Sites:
The
Therion Book, Wiki
Selected
Reviews:
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Features include:
- Structure of map drawings is fully independent on survey
data - draw partial maps as you are exploring and surveying
the cave
- Complete maps with all the detail. No additional ink stroke
is needed
- Maps are dynamic, always up-to-date – i.e. they are
automatically re-drawn after loop closure,
blunder fix, scale or symbol set change
- Split the cave into layers and selectively display them
- Generate an interactive atlas
- Define multiple independent “views” of map structure
suitable
for different purposes
- 3D models are created using 2D maps
- Support for LRUD dimensions
- Export formats for maps: pdf, svg, xhtml, survex, dxf,
esri53, and kml (Google Earth)
- Export formats for 3D models: loch, .plt (Compass), .3d
(Survex), dxf, esri, vrml, 3dmf, and kml
- Import formats: .3d (Survex), .plt (Compass),
.xyz (general), PocketTopo Therion
- Internationlization support: Czech, German, Greek, English
[UK/US], Spanish, French, Italian, Portugese [BR/PT], Russian, Slovak
and Albanian
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Last Updated Saturday, April 13 2013 @ 05:49 PM EDT
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