% arc with endpoints 0/-90 0/90 90/0 -90/0

% Begin important stuff

delete all

arc lat 0 lon -90 in lat 0 lon 90 out 32
arc lat 90 lon 0 in lat -90 lon 0 out 32

% End important stuff



% can ignore from here on

txt delete group 108
txt push
txt group 108
txt font 3
txt cent
txt fill off
txt c 100 "orange: (0, -90) --> (0, 90)"
txt c 70 "  blue: (90, 0) --> (-90, 0)"
txt fill on
txt c 20 "show arc commands" "www demos: arcs-1b.txt"
txt pop
