computes XY centroid for polygon shapefiles
shpcentrd shp_file new_shp_file
the name of an existing polygon shapefile.
the name of the point shapefile that will be created
shpcentrd apolygonfile pointcentrd
shpcentrd is part of shapelib, maintained by Frank Warmerdam. This guide was created by Eduardo Patoo Kanegae and converted to manpage by Johan Van de Wauw.