Program to convert a vector file to the MacIdas map format used by
Vis5D.

This program was written for my own use only, NO WARRANTY whatsoever
is made.

Henk Witte
Hugo de Vries Laboratory
University of Amsterdam
Kruislaan 318
1098 SM Amsterdam                           email: henk_witte @ sara.nl
The Netherlands
  
 usage:
 vec_to_map vectordata McIdasmap
   vectordata: ascii file with vector map data.
   McIdasmap: result map.

the vector file follows normal convention, i.e. east is negative.
Longtitudes are sign changed before they are written to McIdas
format. The vector file is a sequence of lines, each line starts
with a linenumber (which is ignored) and number of vertices in the
line. Following are the specified number of vertices as pairs of
longtitudes and latitudes. Longtitudes and latitudes are integers
of lon (or lat) * 10000 (i.e. 180.00 should be given as 1800000)