Therion aids the process of drawing up cave surveys (maps). Drawings are done over scans and can be distorted to fit the centreline data. Output is in single sheet or atlas style PDF 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 3D models, generated from walls and passage-heights. Output formats supported are .3d files, VRML, DXF, and the native .thm (therion model). Therion is compatible with Survex and uses it for the centreline processing. Centreline data can be stored in Survex or therion form.
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).
The example files use czech/slovak names so you will need texlive-lang-czechslovak (or tetex-extra) to process them.
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| Architecture | Package Size | Installed Size | Files |
|---|---|---|---|
| alpha | 1,044.3 kB | 4184 kB | [list of files] |
| amd64 | 985.6 kB | 3852 kB | [list of files] |
| arm | 1,036.2 kB | 3740 kB | [list of files] |
| armel | 1,002.4 kB | 3788 kB | [list of files] |
| hppa | 1,086.5 kB | 3900 kB | [list of files] |
| i386 | 951.7 kB | 3620 kB | [list of files] |
| ia64 | 1,314.4 kB | 5832 kB | [list of files] |
| mips | 1,058.0 kB | 4408 kB | [list of files] |
| mipsel | 1,085.8 kB | 4616 kB | [list of files] |
| powerpc | 1,002.6 kB | 3764 kB | [list of files] |
| s390 | 934.0 kB | 3584 kB | [list of files] |
| sparc | 990.4 kB | 3784 kB | [list of files] |