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Plotting nodes and values

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Nazar Adamchuk
Nazar Adamchuk on 31 Oct 2021
Answered: Walter Roberson on 31 Oct 2021
I am plotting the nodes (>150,000) havíng x,y,z-coordinates with help of
scatter3(coor_vs_difference.x_coor,coor_vs_difference.y_coor,coor_vs_difference.z_coor, '.');
Now I'd like to add some associated values at each node, for example, the values from the variable "deltaCycLimit". Each of the data point should receive now some color value for the colorbar. The values in the variable "deltaCycLimit" would vary accroding to the following colorbar from -1066670 (darkblue) to 1195724 (yellow):
How I can represent on my scatter3 plot all nodes, colored from the colorbar according to values?

Accepted Answer

Walter Roberson
Walter Roberson on 31 Oct 2021
The scatter3() syntax is
scatter3(x, y, z, SIZE, COLOR, LINESPEC)
SIZE can be a scalar, or can have one entry for each x value, or can be [] to use default size.
COLOR can be a scalar, or can be a 1 x 3 vector of RGB, or can be a N x 1 vector where N is the number of entries in x, or can be an N x 3 array where N is the number of entries in x.
In your case you would probably use deltaCycLimit or deltaCycLimit(:) for your COLOR information.

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