Distance of Sample Measurement Points to Prototype Catalog Curve

Poul G. Hjorth, Mirza Karamehmedović, John Perram, Robert Piche, Michael Kraeatzschmar

Research output: Contribution to journalJournal articleResearchpeer-review


We discuss strategies for comparing discrete data points to a catalog (reference) curve by means of the Euclidean distance from each point to the curve in a pump's head H vs. flow Qdiagram. In particular we find that a method currently in use is inaccurate. We propose several alternatives that are accurate, fast, robust and stable.
Original languageEnglish
Book seriesJournal of Physics - Conference Series
Issue number1
Pages (from-to)27-35
Publication statusPublished - 2006


  • Geometry
  • orthogonal distance from point to curve
  • Schwarz-Christoffel transformation
  • cubic splines


Dive into the research topics of 'Distance of Sample Measurement Points to Prototype Catalog Curve'. Together they form a unique fingerprint.

Cite this