Caverot applet

1. the java program caverot.jar
2. some html to tell the browser about the applet:

   <applet code="caverot.class" archive="/caving/old/caverot/caverot.jar"
              name="caverot" width="300" height="300">
   <param name="cave" value="http://www.yoursite.co.uk/cavefile.3dz">
   </applet>
    

   Change the archive= entry to point to the program on your web server. Change the value= parameter to point to your cave file.
3. Note that the cave data file must be a full URL - not relative! Caught me out, Jarv 2008.
4. A cave data file in .3dz format. This is a gzip compressed text file containing a series of move/draw commands. Here's an example

   0   0   0   0
   1   -154   61   -73
   0   0   0   0
   1   100   72   640
   1   192   341   944
   1   192   341   523
   0   192   341   944
   1   192   341   1384
   1   557   607   1712
   1   580   882   1841
   1   525   1226   1903
   1   701   1138   2694
   1   967   1166   2889
   1   993   1327   2900
   -1 -154 0 -73
   -1 993 1327 2900
    

   The first column is a command: 0 is move, 1 is draw. The next three are x,y,z in cm. The last two lines are

   -1 xmin  ymin zmin
   -1 xmax ymax zmax 
   

   Here's a small tool for converting survex .3d files 3d2text.c Compile it in with the survex source tree with something like

   gcc -o 3d2text 3d2text.c img.o useful.o message.o filename.o osdepend.o
   

   With survex 1.0.32; Jarvist found the following to work:-
   

   gcc -o 3d2text 3d2text.c img.o useful.o message.o filename.o osdepend.o cmdline.o -lm
   

   Run it with

   ./3d2text cave.3d | gzip > cave.3dz