# Plot 2D points in 3D space

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Christo van Rensburg on 12 Sep 2019
Commented: Star Strider on 13 Sep 2019
Hi there
So I'm struggling to find a way in which I can represent a 2D trjaectory in a 3D plot. I'm viewing the trajectory from a certain distance away from the origin.
Any help would be appreciated thanks!
darova on 12 Sep 2019
What ideas do you have? Did you try something?

Star Strider on 12 Sep 2019
Since your trajectory is defined by two vectors, if you want to plot it in 3D space, you need to provide another vector. The easiest way to do that is to define it as a vector of ones:
x = ...;
y = ...;
z = ones(size(x));
then plot all three vectors. Multiply the ones vector by the appropriate scalar to produce the result you want.
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Star Strider on 13 Sep 2019
My pleasure.

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