MATLAB: Plotting in a 3D space

3d plots

I have a vector r=[1;0;-1]; and I would like to plot this in the 3D space. Can anyone please help me with this?

Best Answer

This will plot a line segment from the origin to the point (1,0,-1):

plot3([0 r(1)],[0 r(2)],[0 r(3)]);

Related Solutions

MATLAB: Moving axis to origin in an isosurface plot

What you try would be worked in 2D.

plot(-1:0.1:1,(-1:0.1:1).^2)
axis equal
xlabel('x');ylabel('y');
ax=gca
ax.YAxisLocation
pause(3)
ax.YAxisLocation='origin'
pause(3)
ax.YAxisLocation='right'
hold on
pause(3)
view(150,30)

Maybe the following code is what you want:

[xSphere,ySphere,zSphere] = sphere(16);          %# Points on a sphere
hAX=scatter3(xSphere(:),ySphere(:),zSphere(:),'.');  %# Plot the points
hold on;      %# Add to the plot
xlabel('x');
ylabel('y');
zlabel('z');
axis off
plot([0 0],[-2 2],'r-.')
plot([-2 2],[0 0],'r-.')
plot3([0 0],[0 0],[-2 2],'r-.')

axis on
box on
grid on

MATLAB: Using plot3 to plot 3d vectors

This one is the correct way of plotting the data points:

point1 = [4,5,6];
point2 = [-3,6,-3];
point3 = [1 2 3];
origin = [0,0,0];
figure;hold on;
plot3([origin(1) point1(1)],[origin(2) point1(2)],[origin(3) point1(3)],'r-^', 'LineWidth',3);
plot3([origin(1) point2(1)],[origin(2) point2(2)],[origin(3) point2(3)],'g-^', 'LineWidth',3);
plot3([origin(1) point3(1)],[origin(2) point3(2)],[origin(3) point3(3)],'b-^', 'LineWidth',3);
grid on;
xlabel('X axis'), ylabel('Y axis'), zlabel('Z axis')
set(gca,'CameraPosition',[1 2 3]);

Best Answer

Related Solutions

MATLAB: Moving axis to origin in an isosurface plot

MATLAB: Using plot3 to plot 3d vectors

Related Question