class_docstr: Polar projection for pie like graphs
class_docstr_tok: ["Polar","projection","for","pie","like","graphs"]
docstr: Project rho and theta
docstr_tok: ["Project","rho","and","theta"]
code: def __call__(self, rhotheta):
      """Project rho and theta"""
      if None in rhotheta:
          return None, None
      rho, theta = rhotheta
      return super(PolarView, self).__call__(
          (rho * cos(theta), rho * sin(theta))
      )
  
imports: from __future__ import division
  from math import cos, log10, pi, sin
label_desc: Use image node_id 1 for calling the PolarView obj's underlying member method code with example usage: obj.__call__(rhotheta) and returns: super, None,  None