Plotting a 3D line on a surface plot

69 次查看（过去 30 天）
DONGUK KIM
DONGUK KIM 2020-5-23
回答： Apurvi Mansinghka 2020-6-18
I want to plot a 3D line
y = A.*((1+(9/4).*x).^(3/2)-1);
z = x.^(3/2);
on the surface
z = x.^(3/2);
so basically I want two plots one surface and other a line.
Here's the code that I wrote that doesn't return the result that I was looking for.
[X,Y] = meshgrid(0:0.1:30,1:30);
Z = X.^(3/2);
A = 8./(13.^(3./2)-8);
x = linspace(0,30,100);
y = A.*((1+(9/4).*x).^(3/2)-1);
z = x.^(3/2);
hold on
plot3(x,y,z)
surf(X,Y,Z)
hold off
When I run this it returns a 2D plot of a line and some random pixels.
Is there a way to make this code work?
Thanks.

请先登录，再回答此问题。

回答（1 个）

Apurvi Mansinghka
Apurvi Mansinghka 2020-6-18
Hi,
I understand you want to plot multiple 3D objects on the same plot. In order to do so use the function view(dim) to specify line of sight for 3-D plots.
Modify the code as follows:
[X,Y] = meshgrid(0:0.1:30,1:30);
Z = X.^(3/2);
A = 8./(13.^(3./2)-8);
x = linspace(0,30,100);
y = A.*((1+(9/4).*x).^(3/2)-1);
z = x.^(3/2);
view(3) % set dim=3 for 3-D plot
hold on
plot3(x,y,z)
surf(X,Y,Z)
hold off

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by