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Therion 0.3.0 (2004-04-16):

therion:

 * Therion exports 3D model
 * loop closure algorithms implemented in Therion
 * input language changes:
   - centreline command: fix doesn't accept covariances specification
 * configuration file changes:
   - layout command: map-header improved
   - export command: new formats for 3D model export added -- vrml, 3dmf,
     therion (default)
 * initialization file changes: 
   - removed item: path-cavern
 * log file contains both loop errors and scrap distortions at the end
 * completely new Win32 installation with TeX and Tcl/Tk included

xtherion:

 * data file may be specified as an argument from the command line
 * basic 3D model viewer added
 * Map editor: only the visible part of background images is zoomed
   (less memory consumption and speed improvement)
 
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Therion 0.2.19 (2004-03-01):

therion:

 * input language changes:
   - place option of point, line, area commands: none renamed to default
   - area command: place bottom is default
   - line command: if contour has no gradient specified, visualization
      is symbol-set dependent (no gradient tick in UIS, tick in the middle
      in SKBB)
   - line command: pit may be spelled as pitch
   - line command has new type: gradient
   - survey command has new option: person-rename
 * configuration file changes:
   - layout command has new option: debug
   - select command: new rules for selection if there is no map selected
 * scrap transformation improved, distortion logged in the log file
 * debugging map mode shows scrap distortions
 * bug fixed in PLT export 

xtherion:

 * Map editor: status bar displays command preview
 * Map editor: new Area control
 * Map editor: `Move to' in File commands added
 * Map editor: name of the edited scrap displayed in Title bar
 * Map editor: edited line is highlited
 * Map editor: selected area is highlited
 * Map editor: orientation tick at the beginning of line symbols
 * Help/Control dialog with key and mouse shortcuts
 * input (keyboard) encoding menu

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Therion 0.2.18 (2004-02-12):

therion:

 * Therion supports translations of texts in PDF map/atlas output
 * Therion exports centreline to SQL database
 * input language changes:
   - line command has new type: water-flow
   - centerline command: discovery-date/team renamed to explo-date/team
   - layout command has new options: language, colo[u]r, symbol-show,
       map-comment, map-header, scale-bar, statistics
   - -author and -copyright options apply only to centreline and scrap,
     -title to survey, centreline, map and scrap
   - it's possible to leave date field unspecified `-'
 * configuration file changes:
   - export command has new type: database
 * initialization file changes: 
   - new items: language, encoding-sql
   - encoding_default renamed to encoding-default
 * air-draught ticks set according to -scale option

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Therion 0.2.17 (2003-12-04):

therion:

 * input language changes:
   - layout command has new options: base-scale, 
       symbol-set, symbol-assign, symbol-hide
   - size option for point and line symbols accepts following values: 
       tiny (xs), small (s), normal (m), large (l), huge (xl)
 * support for run-time loading of map symbols
 * MetaPost processing optimizations

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Therion 0.2.16 (2003-11-24):

therion:

 * input language changes:
   - centerline command has new team roles: instruments (insts), assistant (dog)
   - centerline command has new data readings: 
       up/ceiling, down/floor, left, right, ignore
   - centerline may be spelled as centreline
   - deg:min:sec syntax allowed for degree values
   - point, line and area commands have new option: visibility on/off
 * new rules for displaying map previews
 * new initialization file items: tmp-path, tmp-remove
 * error if no source files are specified
 * if error occures under Win32, Therion waits until RETURN is pressed

xtherion:

 * Help/BAC Calculator dialog added

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Therion 0.2.15:

therion:

 * input language changes:
   - layout command has new option: code <metapost|tex-map|tex-atlas>
   - join command has new option: count <N>
 * therion checks validity of UTF-8 encoded input files
 * runtime errors on powerpc fixed (signed/unsigned chars and printf)
   
xtherion:

 * bug fixed -- compiler does not add empty lines to config files

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Therion 0.2.14 (2003-07-16):

therion:

 * input language changes:
   - layout command has new option: layers on/off
 * initialization file syntax changes: 
     cavern-path, pdftex-path, mpost-path, source-path
 * fonts setup for PDF output
 * updated documentation
 * Therion reads (definitely) following environment variable: 
   - THERION -- search paths for [x]therion.ini file

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Therion 0.2.13 (2003-06-16):

therion:

 * thpdf, theps2pdf and 3dtops external programs integrated into Therion
 * MetaPost and TeX macros compiled into Therion 
 * compilation: just "make" is enough; works also on win32 systems
 * input language changes:
   - centerline command has new options: discovery-date, discovery-team
   - point command: type anostomosen renamed to anastomosis
   - layout command has new option: transparency on/off
   - layout command has changed option: opacity 0.0-100.0
   - layout command has changed option: grid-size is measured in real units
 * Therion reads following environment variables: 
   - THINIT -- search paths for [x]therion.ini file
   - THERION -- search paths for configuration and source files
 * PDF output: support for Optional Content Groups (Layers) in Acrobat 6

xtherion:

 * Text editor: text undo/redo works with tcltk8.4.3
 * Map editor: line symbols may be splitted
