Pixel Conversion:: A Simple Way to Extract Coordinates of Points from a Printed Graph

• Randall B. Shirts ^[1] ; Christian Aymard ^[2]
  1. [1] Brigham Young University

     Brigham Young University

     Estados Unidos

     
  2. [2] Agricultural Research Centre For International Development

     Agricultural Research Centre For International Development

     París, Francia

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 9 (September), 2000, págs. 1230-1230
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A very simple method is described for extracting the coordinates of points from printed graphs, student reports, or publications. One only needs a flatbed scanner (available now for $50-$200) and a desktop computer. This is a convenient and inexpensive alternative to the tedious traditional method using a ruler or to the more costly programs available commercially. A Windows program has been made available to perform the required operations.