8.4

分形理论及算法

             xs:=3Dc/2;
             for i:=3D1 to 100 do
                 begin
                     ye:=3Dys+K*sin(xs); xe:=3Dxs+ye;
                     xs:=3Dxe; ys:=3Dye
                 end;
             for j:=3D1 to 1000 do
                 begin
                     ye:=3Dys+K*sin(xs); xe:=3Dxs+ye;
                     xe:=3D rMOD(xe,R*PI); ye:=3D rMOD(ye,R*PI);
                     x:=3Dround(70*xe*2/R); y:=3Dround(70*ye*2/R);
                     if (x>0) and (x<650) then
                     if (y>0) and (y<479) then
                     putpixel(x+50,470-y,d);
                     xs:=3Dxe; ys:=3Dye;
                     if keypressed then GOTO 10;
                 end;
           end;
   end;
10:
   sound(500);=20
   delay(200);nosound;=20
   readln;
   closeGraph;
end.</PRE></UL><PRE></PRE>
<P></P>
<P>=D7=A2=D2=E2=A3=AC=D4=DA=C9=CF=CA=F6=B3=CC=D0=F2=D6=D0=BA=E1=D7=F8=B1=EA=
=BA=CD=D7=DD=D7=F8=B1=EA=BD=BB=BB=BB=C1=CB=D2=BB=CF=C2=A1=A3=C8=A1<I>R</I=
>=CE=AA2,=B8=C4=B1=E4=B2=CE=CA=FD<I>K</I>=A3=AC=B5=C3=B5=BD=20
=CD=BC8.8=A3=AC=BF=C9=D2=D4=BF=B4=B5=BD=B5=B1<I>K</I>=B1=E4=B4=F3=CA=B1=CF=
=B5=CD=B3=C8=DD=D2=D7=B3=F6=CF=D6=BB=EC=E3=E7=A1=A3=B5=B1=B9=CC=B6=A8<I>K=
</I>=3D1.2=A3=AC=B8=C4=B1=E4R=CA=B1=A3=AC=BB=E1 =
=B3=F6=CF=D6=CA=B2=C3=B4=CF=D6=CF=F3=C4=D8?=D5=E2=CA=B1=B5=C3=B5=BD=CD=BC=
8.9=A1=A3</P>
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src=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/p809.jp=
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<P>=CD=BC8.9 =
<I>K</I>=C8=A1=B6=A8=CE=AA1.2=A3=AC=B8=C4=B1=E4<I>R</I>=B5=C3=B5=BD=B5=C4=
=B1=EA=D7=BC=D3=B3=C9=E4=CD=BC</CENTER></P>
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/pref1.=
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m">2</A></TD>
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m">4</A></TD>
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m">6</A></TD>
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m">7</A></TD>
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m">8</A></TD>
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/901.ht=
m">9</A></TD>
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/1001.h=
tm">10</A></TD>
    <TD><A=20
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/EP.htm=
">=CE=B2=C9=F9</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/REF.ht=
m">=B2=CE=BF=BC=CE=C4=CF=D7</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/EE.htm=
">=BA=F3=BC=C7</A></TD>
    <TD><A=20
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/DDEX.h=
tm">=CB=F7=D2=FD</A></TD></TR></TBODY></TABLE></FONT>
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/801.ht=
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    <TD><A=20
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/802.ht=
m">8.2</A></TD>
    <TD><A=20
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href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/803.ht=
m">8.3</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/804.ht=
m">8.4</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/805.ht=
m">8.5</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/806.ht=
m">8.6</A></TD>
    <TD><A=20
      =
href=3D"http://www.phil.pku.edu.cn/personal/huajie/fractalart/html/807.ht=
m">8.7</A></TD></TR></TBODY></TABLE></FONT></CENTER>
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