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% positivecharge.mp
% L. Nobre G.
% 2004
%input featpost3Dplus2D;
beginfig(1);
numeric size, num, i, j, coos[];
string comm, bray;
color fro, tip;;
size = 1.5;
num = 70;
bray = "0.05";
draw rp(black)--rp((size,0,0))--rp((size,size,0))--rp((0,size,0))--cycle;
for i=1 upto num:
for j=1 upto 6:
coos[j] := uniformdeviate(size);
endfor;
fro := (coos1,coos2,coos3);
tip := (coos4,coos5,coos6);
comm := "positivecharge(true," & cstr(fro) & "," & bray & ");";
getready( comm, fro );
comm := "positivecharge(false," & cstr(tip) & "," & bray & ");";
getready( comm, tip );
endfor;
doitnow;
endfig;
end.
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