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Using plot3 to plot 3d vectors

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The following code is meant to plot the vectors (4,5,6), (-3,6,-3) and (1,2,3) directed from the origin.
plot3([0 4], [0 5], [0 6], 'k^--',[0 -3], [0 6], [0 -3], 'b^--', [0 1],...
[0 2],[0 3], 'r^-')
xlabel('x'); ylabel('y'); zlabel('z');
In the plot generated, the location of some points does not appear to correspond to the axis numbers. For example, the origin is located at a point where neither x nor y nor z appear to be 0 although the same is not true for the remaining points on the plot (like (-3,6,-3) and (4,5,6)) and the location of points relative to each other seems correct. Can someone explain what is causing this and how this issue can be fixed?

Accepted Answer

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 7 Sep 2020
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]);
Aleem Andrew
Aleem Andrew on 10 Sep 2020
Thanks for your answer
Sulaymon Eshkabilov
Sulaymon Eshkabilov on 10 Sep 2020
It just a pleasure to be be helpful.

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