在MATLAB中绘制3D区域

Question

I am trying to create a 3D region in MATLAB by stacking 2D curves one above the other.I have a particular 2D curve at every height location for a total height h,and I am required to place the 2D curves one above the other to get the 3D region for the height h.How can this be done?

For eg,If my curves are circles of uniformly increasing radii through a height interval [1,10] then I should be able to get a frustum of a cone of height 9.

Thanks a lot for your help.

Answer 1

Something like this:

plot3(x1, y1, repmat(z1,size(x1))),hold on    
plot3(x2, y2, repmat(z2,size(x2))),hold on
plot3(x3, y3, repmat(z3,size(x3))), hold on
%...

where xi , yi is the curve on the plane at zi .

If your xi have the same length, you can also write it in a loop.

Answer 2

假设您将单元格数组curves作为Nx2数组保存：

cellfun(@(x) plot(x(:,1),x(:,2)),curves);