How to rotate a shape in polar coordinate ?

[lvl107]

Hello Everyone.

I'm new to polar coordinate :
From :

To :
How to rotate the red shape in polar coordinate 90 degree clockwise ?
Thanks in advance.
Regards.

[terryhendicott · Accepted solution]

Hi

Just subtract 90 degrees from the angular value.

Cheers

Terry

[lvl107]

Thanks, Terry, I'm so embarrassed...It's so simple : ( I guess polar coordinate that's very helpful for rotating... )

[Werner_E]

🙂