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]

🙂

[LucMeekes]

"I guess polar coordinate that's very helpful for rotating..."

Provided that you want to rotate around the origin.

If you want to rotate around another point than origin, then you're up for a challenge.

Success!
Luc

[Werner_E]

---

@LucMeekes wrote:

....

If you want to rotate around another point than origin, then you're up for a challenge.

Yes, its sure a bit more demanding than just shifting the angle 😉