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如题，请大神看看错在哪里了，代码如下：
%位移曲线设计
clear;
for i=1:1:60
y(i)=i/60;
x(i)=0;
end
for i=61:1:90
y(i)=1;
x(i)=(i-60)/60;
end
for i=91:1:120
y(i)=cos(2*pi*(i*2-180)/240)/2+1/2;
x(i)=(1/60)*(240/(2*pi))*sin(pi*(i*2-180)/120)/2+1/2;
end
for i=180:-1:121
x(i)=x(240-i);
y(i)=-y(240-i)+1;
end
for i=359:-1:181
x(i)=x(360-i);
y(i)=-y(360-i);
end
y(360)=0;y(361)=y(1);
x(360)=0;x(361)=x(1);
%画未修正速度曲线
figure(1);
subplot(2,1,1);
plot(x);
axis([-1 400 -1 2]);
subplot(2,1,2);
plot(y);
axis([-1 400 -1.2 1.2]);
%修正位移曲线
for i=55:1:65
x(i)=-(1/120)*(20/(2*pi))*sin(2*pi*(i-55)/20)+(i-55)/120 +x(55);
y(i)=(1/120)*(20/(2*pi))*sin(2*pi*(i-55)/20)+(i-55)/120 +y(55);
end
for i=359:-1:181
x(i)=x(360-i);
y(i)=-y(360-i);
end
y(360)=0;y(361)=y(1);
x(360)=0;x(361)=x(1);
%画修正位移曲线
figure(2);
subplot(2,1,1);
plot(x);
axis([-1 400 -1 2]);
subplot(2,1,2);
plot(y);
axis([-1 400 -1.2 1.2]);
%求导
for i=2:1:361
zx(i-1)=x(i)-x(i-1);
zy(i-1)=y(i)-y(i-1);
end
zx(360)=0;
zy(360)=1/60;
zx(361)=zx(1);
zy(361)=zy(1);
%画速度曲线
figure(3);
subplot(2,1,1);
plot(zx);
subplot(2,1,2);
plot(zy);
x2=x;
y2=y;
%凸轮设计
x2=x2*5;
zx=zx*5;
y2=y2*7;
zy=zy*7;
e=8;
r0=40;
rr=5;
s0=sqrt(r0*r0-e*e);
i=1:1:361;
s1=sin(2*pi*i/360);
c1=cos(2*pi*i/360);
% x 方向凸轮
xl1=(s0+x2).*s1+e*c1;
yl1=(s0+x2).*c1-e*s1;
dx1=(zx-e).*s1+(s0+x2).*c1;
dy1=(zx-e).*c1-(s0+x2).*s1;
s21=dx1./sqrt(dx1.^2+dy1.^2);
c21=-dy1./sqrt(dx1.^2+dy1.^2);
xx1=xl1-rr*c21;
yy1=yl1-rr*s21;
% y 方向凸轮
xl2=(s0+y2).*s1+e*c1;
yl2=(s0+y2).*c1-e*s1;
dx2=(zy-e).*s1+(s0+y2).*c1;
dy2=(zy-e).*c1-(s0+y2).*s1;
s22=dx2./sqrt(dx2.^2+dy2.^2);
c22=-dy2./sqrt(dx2.^2+dy2.^2);
xx2=xl2-rr*c22;
yy2=yl2-rr*s22;
%画字母“D”
figure(4)
plot(x2,y2);
title('letter B');
axis([-2 10 -9 9]);
%画X凸轮
figure(5);
plot(xl1,yl1);
hold on;
plot(xx1,yy1);
title('x-Cam');
%画Y凸轮
figure(6);
plot(xl2,yl2);
hold on;
plot(xx2,yy2);
title('y-Cam');
%压力角检验
figure(7)
for i=1:1:361
yy(i)=atan((zx(i)-e))./(x2(i)+s0);
yy(i)=yy(i)*180/pi;
plot(yy);
title('x-pressure angle');
end
figure(8)
for i=1:1:361
yy(i)=atan((zy(i)-e))./(y2(i)+s0);
yy(i)=yy(i)*180/pi;
plot(yy);
title('y-pressure angle');
end
zyr=[xx2,yy2];
zyt=[xl2,yl2];
save d:\cam_realyr zyr -ascii;
save d:\cam_realyt zyt -ascii;
fid=fopen('D:\\camA.scr','W'); % “D:\\camA.scr”为保存文件
fprintf(fid,'spline\n'); % spline 为样条曲线拟合
for i=1:1:361;
fprintf(fid,'%g,%g\n',xl2(i),yl2(i)); % 写入数据
end;
fprintf(fid,'c\n'); % 数据段分割结束
fprintf(fid,'spline\n'); % spline 为样条曲线拟合
for i=1:1:361;
fprintf(fid,'%g,%g\n',xx2(i),yy2(i)); % 写入数据
end;
fprintf(fid,'c\n'); % 数据段分割结束
fclose(fid); % 结束文件编辑