NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Circle charts
From: Andrew Nikitin
Date: 2009 Jan 28, 11:34 -0800
From: Andrew Nikitin
Date: 2009 Jan 28, 11:34 -0800
On Jan 28, 2:46 am, Nicolàs de Hilsterwrote: > The company I used to work for in those days had dedicated in-house > software to create these plots and plotted them using an A1 or A0 pen > plotter, but I do recall that at some jobs they were even made by hand, > something I never did. It occured to me that there is intermediate variant between printing circle of position on a chart and constructing them manually every time it is needed. What can be done instead, is for certain pair of bases every point of its middle perpendicular can be graduated with the angles (in degrees) at which this pair of bases is visible from any point of the circle with the center on this point and radius equal to the distance between this point and one of the bases. Attached PDF shows what I mean by that. Hopefully. Andrew Nikitin. --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---