> From: "Víctor Pérez Villar" <[EMAIL PROTECTED]> > To: "Krzysztof Kotynia" <[EMAIL PROTECTED]> > Subject: Weir's Diagram > Date: Thu, 25 Mar 1999 13:22:21 +0100
> Hello Krzysztof, > > What is the Weir's Diagram?, How are they designed?. Its reminds to my, the > concept of the quadrants analematic. > Weir (or Weir's) Diagram is combined of the family of latitude elipses and the family of local hour angle hyperboles. It enables to convert data from polar coordinates to horizontal. Specially useful is for finding azimuth because of the error 1 or 2 degees which is not of essential value during azimuth measurement. Lord Kelvin said that the diagram ``is the neatest thing of its kind ever produced'' Best regards Krzysztof
