Generate a two-dimensional grid consisting of radial lines and concentric circles with custom radii.

Input parameters:

1. Pl → Grid origin and orientation plane.
2. Ln → Number of radial spokes.
3. Rd → Radii of concentric circles. Radii should be increasing and non-negative.

Output parameters:

1. Pt → Points on the grid. Point structuring (flat, radial, or concentric) can be modified from the component menu.
2. Cl → Grid cell outlines. Cell structuring (flat, radial, or concentric) can be modified from the component menu.
3. Ln → Radial lines.
4. Ci → Concentric circles.