class_docstr: Y Logarithmic projection
class_docstr_tok: ["Y","Logarithmic","projection"]
docstr: Project y
docstr_tok: ["Project","y"]
code: def y(self, y):
      """Project y"""
      if y is None or y <= 0 or self.log10_ymax - self.log10_ymin == 0:
          return 0
      return self.height - self.height * (
          log10(y) - self.log10_ymin
      ) / (self.log10_ymax - self.log10_ymin)
  
imports: from __future__ import division
  from math import cos, log10, pi, sin
label_desc: Use image node_id 2 for calling the LogView obj's underlying member method code with example usage: obj.y(y) and returns: unknown, int