% downloadicon.mp % L. Nobre G. % 2004 input featpost3Dplus2D; f := 0.4[(12,3,2),(2,5,6)]; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Max: 0.8 Spread := 30; TDAtiplen := 0.65; TDAhalftipbase := 0.35; TDAhalfthick := 0.15; beginfig(1); color tracecol, lockcol, arrowcol; numeric altura, compri, radius, altfrac, comfrac, radang; path theside, thefront, thelocka, thelockb, thelock; color poi[], startarrow, endarrow; numeric numpl, aux, i; altura = 1; compri = 2; radius = 0.8; altfrac = 0.2; comfrac = 0.15; radang = 37; numpl = 9; tracecol = blue; lockcol = black; arrowcol = (0.7,0.2,0.1); startarrow = (0,-radius,2); endarrow = (0,0,radius); currentpen := pencircle scaled 2.4mm; drawoptions( withcolor tracecol ); rigorousdisc( 0, true, (-0.5compri,0,0), radius, (compri,0,0) ); poi1 = (0.5compri,-radius,0); poi2 = (0.5compri,radius,0); poi3 = (-0.5compri,radius,0); poi4 = (0.5compri,-radius,-altura); poi5 = (0.5compri,radius,-altura); poi6 = (-0.5compri,radius,-altura); theside = rp(poi1)--rp(poi2)--rp(poi5)--rp(poi4)--cycle; thefront= rp(poi2)--rp(poi3)--rp(poi6)--rp(poi5)--cycle; drawoptions( withcolor white ); fill theside; fill thefront; thelocka = rp((comfrac*compri,radius,-altfrac*altura)) --rp((comfrac*compri,radius,0)); thelockb = rp((-comfrac*compri,radius,-altfrac*altura)) --rp((-comfrac*compri,radius,0)); for i=1 upto numpl: aux := i*radang/numpl; poi7 := (comfrac*compri,radius*cosd(aux),radius*sind(aux)); poi8 := (-comfrac*compri,radius*cosd(aux),radius*sind(aux)); thelocka := thelocka...rp(poi7); thelockb := thelockb...rp(poi8); endfor; thelock = thelocka--reverse thelockb--cycle; drawoptions( withcolor lockcol ); filldraw thelock; drawoptions( withcolor tracecol ); draw theside; draw thefront; drawoptions( withcolor arrowcol ); tdarrow( startarrow, endarrow ); endfig; end;