Any news about the proposed Labyrinth GUI? ... it became obvious ... that a GUI is essential. Drop down boxes to choose parameters would be greatly appreciated.
XTherion is a GUI, admittedly rather modest. It has reasonably comprehensive dropdown boxes for drawing, though I find it is quicker to type and let the boxes auto complete. There are alternatives in development, topolinux and inkscape. If you are referring to http://labyrinth.speleo.sk/ then, while it is a nice idea, it suggests doing away with the plain text human readable input I think. If that is the case then one of the key advantages of therion would be lost. With plain text users have control of the data, with machine written data users are at the mercy of bugs in the software. Plain text is likely to be a readable file format for quite some time, whereas other (cave survey)formats have become obsolete rather frequently and I expect will continue to do so. Just my two cents. Bruce