界面园应该可以通过下面的办法画出来
- %曲面与多个截平面相交
- y=-10:0.5:10;
- z=y;
- [Z,Y]=meshgrid(z,y);
- X=Z;
- X1=0*ones(size(Z));
- X2=3*ones(size(Z));
- X3=-3*ones(size(Z));
- Z4=(X.^2-Y.^2)/10;
- mesh(X1,Y,Z);hold on
- mesh(X2,Y,Z)
- mesh(X3,Y,Z);
- mesh(X,Y,Z4);
- r1=(abs(X1-X)<0.05);
- r2=(abs(X2-X)<0.05);
- r3=(abs(X3-X)<0.05);
- zz1=r1.*Z4;yy1=r1.*Y;xx1=r1.*X;
- zz2=r2.*Z4;yy2=r1.*Y;xx2=r1.*X;
- zz3=r3.*Z4;yy3=r1.*Y;xx3=r1.*X;
- plot3(xx1(r1~=0),yy1(r1~=0),zz1(r1~=0),'k*');
- plot3(xx2(r2~=0),yy2(r2~=0),zz2(r2~=0),'k*');
- plot3(xx3(r3~=0),yy3(r3~=0),zz3(r3~=0),'k*');
- colormap(hsv)
- clc;
复制代码 |