Polar¶

Type:: section
Appearance:: optional
Excludes:: Cartesian, NRefinements, NumericalAperture

This section is used to specify the evaluation points by their polar coordinates in a spherical coordinate system. The spherical coordinate system $(r, \vartheta, \varphi)$ relates to the Cartesian coordinate system by

$\begin{eqnarray*} x & = & r\sin(\vartheta)\cos(\varphi), \\ y & = & r\sin(\vartheta)\sin(\varphi), \\ z & = & r\cos(\vartheta) \end{eqnarray*}$

A single radius $r$ is fixed for all evaluation points by setting Radius. Hence, all evaluation points are located on a sphere.

Warning

When defining a rotation (see Rotation), the defined evaluation points refer to the rotated coordinate system.