List to Polygon

[Jakob Hammersen]

Hello everyone,

i have a question to the sympy geometry module.

I have a list of tuple where each tuple is representing a vertex of the polygon. I tried to submit the list to the Polygon-function, but i get the error "ValueError: Nonzero coordinates cannot be removed". Does anyone have an idea on how to fix this?

Thanks in advance

Jakob

[phi ARCHITECT]

Can you show the section of code?

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[Jakob Hammersen]

polygon = [(0,0),(200,0),(200,250),(150,100)]

poly = Polygon(polygon)

this is what im trying to do but as I said, I get a " ValueError: Nonzero coordinates cannot be removed" when i run the code.

[phi ARCHITECT]

This stumped me for a moment, too,

You need to expand the list of tuples:

poly = Polygon(*polygon)                                                                                                                                                                    
  

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[Jakob Hammersen]

Thanks alot, now it works

[phi ARCHITECT]

Yeah - the error doesn't make sense for the context

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[Sangyub Lee]

I indeed think that it is confusing error,

However, it may be a bit difficult to correct the error to raise the error more contextually in this case though.

Because there are many variations of input, from ‚Polygon’.

It is recommended to always consult the documentation before using functions, and don’t use functions plausibly.

I think that not that urgent to fix, because it comes from mistake at the first place.