Algorithm 785: a software package for computing Schwarz-Christoffel conformal transformation for doubly connected polygonal regions

  • Authors:
  • Chenglie Hu

  • Affiliations:
  • Fort Hays State Univ., Hays, KS

  • Venue:
  • ACM Transactions on Mathematical Software (TOMS)
  • Year:
  • 1998

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Abstract

A software package implementing Schwarz-Christoffel Conformal transformation (or mapping) of doubly connected polygonal regions is fully described in this article from mathematical, numerical, and practical perspectives. The package solves the so-called accessory parameter problem associated with the mapping function as well as evaluates forward and inverse maps. The robustness of the package is reflected by the flexibility in choosing the accuracy of the parameters to be computed, the speed of computation, the ability of mapping “difficult” regions (to be specified in Section 2), and being user friendly. Several examples are presented to demonstrate the capabilities of the package.