一、求用MATLAB画三维曲面图，z不是直接就是x,y的函数，而是有其他程序，该怎么画？

X(1) = 29*pi/180:0.5*pi/180:39*pi/180;

X(2) = 62*pi/180:0.5*pi/180:75*pi/180;

[Y1,Y2] = meshgrid(X(1),X(2)); % 生成画曲面需要的格点

Z = f(Y1,Y2); % 计算格点对应的函数值，如果还有关于alpha取平均这件事，你是可以写在函数f内部进行

surf(Y1,Y2,Z) % 画图举腊则

shading interp % surf画图一般是有局春格线，如果觉得看着不舒服，这句是用来正棚去掉格线，你可以根据需要选择使用

plot3(x(1),x(2),f) 就可以了

二、matlab画三维曲面图

知道一系列点的坐标和信如下（1.486,3.059,0.1）;（2.121,4.041,0.1）;（2.570,3.959,0.1）;（3.439,4.396,0.1）;（4.505,3.012,0.1）;（则仔3.402,1.604,0.1）;（2.570,2.065,0.1）;（2.150,1.970,0.1）;（1.794,3.059,0.2）;（2.121,3.615,0.2）;（2.570,3.473,0.2）;（3.421,4.160,0.2）;（4.271,3.036,0.2）;（3.411,1.876,0.2）;（2.561,2.562,0.2）;（2.179,2.420,0.2）;（2.757,3.024,0.3）;（3.439,3.970,0.3）;（4.084,3.036,0.3）;（3.402,2.077,0.3）;（2.879,3.036,0.4）;（3.421,3.793,0.4）;（3.953,3.036,0.4）;（3.402,2.219,0.4）;（3.000,3.047,0.5）;（3.430,3.639,0.5）;（3.822,3.012,0.5）;（3.411,2.385,0.5）;（3.103,3.012,0.6）;（3.430,3.462,0.6）;（3.710,3.036,0.6）;（3.402,2.562,0.6）;（3.224,3.047,0.7）;（3.411,3.260,0.7）;（3.542,3.024,0.7）;（3.393,2.763,0.7）。

A=[1.486,3.059,0.1;2.121,4.041,0.1;2.570,3.959,0.1;3.439,4.396,0.1;4.505,3.012,0.1;3.402,1.604,0.1;2.570,2.065,0.1;2.150,1.970,0.1;1.794,3.059,0.2;2.121,3.615,0.2;2.570,3.473,0.2;3.421,4.160,0.2;4.271,3.036,0.2;3.411,1.876,0.2;2.561,2.562,0.2;2.179,2.420,0.2;2.757,3.024,0.3;3.439,3.970,0.3;4.084,3.036,0.3;3.402,2.077,0.3;2.879,3.036,0.4;3.421,3.793,0.4;3.953,3.036,0.4;3.402,2.219,0.4;3.000,3.047,0.5;3.430,3.639,0.5;3.822,3.012,0.5;3.411,2.385,0.5;3.103,3.012,0.6;3.430,3.462,0.6;3.710,3.036,0.6;3.402,2.562,0.6;3.224,3.047,0.7;3.411,3.260,0.7;3.542,3.024,0.7;3.393,2.763,0.7];x=A(:,1);y=A(:,2);z=A(:,3);scatter3(x,y,z)%散点图唤盯轮figure[X,Y,Z]=griddata(x,y,z,linspace(1.486,4.271)',linspace(1.604,4.276),'v4');%插值pcolor(X,Y,Z);shading interp%伪彩色图figure,contourf(X,Y,Z) %等高线图figure,surf(X,Y,Z)%三维曲面figure,mesh(X,Y,Z),hold on,scatter3(x,y,z);

三、若有一个曲面零件，，怎么去画他的三维图，需要哪些参数，用PROE画，请赐教，

要求不高兆余信的话，曲面有稍微有点复杂，，，拍三视图照片，贴到proe造型模块，构线做面，然后加厚或实体化，，，然后族轮看需要后续的结构与装毁枯配。。。

没有一成不变的参数或方法，具体情况具体对待，依零件特点灵活选择绘图方案。

要求高的话就抄数，不高的话就测量多点数据，绘制几条控制曲面的内部包络曲线，然后边界或扫描即可。