static int move(int,int);
static int cont(int,int);
static int min_range[5], max_range[5];
static int which_range;
static int change_range;
static double dist, e=0, n=0;
static double DIST, HT;
int do_profile(double, double, double, double, char *, int, int);
int read_rast(double, double, double, int, int, RASTER_MAP_TYPE);