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% nsmetica.mp
% L. Nobre G.
% 2002
input featpost3Dplus2D;
beginfig(1);
f := 2*(5,3,2);
Spread := 70;
NF := 0;
numeric hstep, hmax, hsdev, basestep, basemax, basesdev;
numeric i, j, k, angsdev, cylength, cyradius, basen, hn;
numeric vcx, vcy, vcz, hcurr, xcurr, ycurr, hbase, aone;
numeric atwo, zcurr, counter;
color lenvec, currpos;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Sma
cylength := 0.45;
cyradius := 0.1;
basen := 11;
hn := 3;
basestep := cyradius*2.4;
hstep := cylength*2.1;
basesdev := cyradius*0.3;
hsdev := hstep*0.04;
hbase := -0.8;
angsdev := 7;
basemax := basen*basestep;
hmax := hn*hstep;
hcurr := hbase;
counter := 0;
for k=1 upto hn:
hcurr := hcurr + hstep;
for i=1 upto basen:
for j=1 upto basen:
zcurr := hcurr + hsdev*normaldeviate;
xcurr := (i-1)*basestep + uniformdeviate( basestep );
ycurr := (j-1)*basestep + uniformdeviate( basestep );
aone := uniformdeviate( 360 );
atwo := angsdev*normaldeviate;
vcz := cosd( atwo );
vcy := sind( atwo )*sind( aone );
vcx := sind( atwo )*cosd( aone );
currpos := ( xcurr, ycurr, zcurr );
lenvec := cylength*( vcx, vcy, vcz );
counter := incr( counter );
generatedirline( counter, aone, 90-atwo, cylength, currpos );
% rigorousdisc( 0, true, currpos-0.5*lenvec, cyradius, lenvec);
endfor;
endfor;
endfor;
NL := counter;
director_invisible( true, 5, false );
endfig;
end;
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