1, keyboard shortcut combination o+g, open the grid Manager, click "Menu" in the lower left corner, in the dialog box, select "Add Polar Grid".
2. Double-click the newly added raster with priority Level 1 and set the contents in the Polar Grid Editor dialog box that pops up.
Please check out my example diagram and try more. When choosing a placement, click "Set the origin in PCB view" in the lower left corner and click "Apply" without setting an item. You can see the changes in the contents of the grid settings on the PCB.
3, click "Menu" in the bottom left corner, select "Enable all Custom Rasters" in the dialog box. And start trying the effect.
4, the components of the angle adjustment needs to double-click the components of individual settings, global settings, or directly placed automatic angle adjustment, I have not tried to come out.
From for notes (Wiz)
Altium Designer Polar Coordinates layout method