Aren't -180° and 180° the same for a 3D parametric surface graph?

Hi
everyone,
I need to
plot some results using the 3D parametric surface graph and these 3 matrix :
First
matrix “theta” : Each column ranges from -180° to 179° (180x360)
Second
matrix “phi” : Each line ranges from 0° to 89.5° (increasing by 0.5°) (180x360)
Third matrix “z” : 180x 360 matrix initialised to 7
First and
second matrixes are converted to a polar representation.
My problem
is that I reach my goal, a full red circle, only if my matrixes range
from -180° to 180° and not when they range from -180° to 179°. Aren’t -180° and
180° the same for this graph? I must be doing something wrong...
Any help
would be great,
Thanks.
Regards,
User
Solved!
Go to Solution.
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Seems obvious that you need to have the first and last point the same in order to close the curve.
A simpler, but equivalent example is a circle on an xy graph, Unless the first and last point coincide, you won't close the loop.
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Aren't -180° and 180° the same for a 3D parametric surface graph?

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