Rhumb line becomes very inaccurate in a few hundred miles. Great circle is the most accurate long range navigational tool.
John D. Haynes Director Geodata Consultants, Inc. 1-800-838-6661 ex.10 [EMAIL PROTECTED] www.geodataconsult.com ----- Original Message ----- From: "Declan Troy" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, September 18, 2002 3:12 PM Subject: Sum: MI-L Taking bearings - terminology > There were four suggestions for the proper terminology for a line > projected from a starting point and a bearing; rhumb, strike, > transect, and vector. It was instructive to look up these terms as > they generally have multiple uses. I've listed portions dictionary > entries most applicable to the usage I was looking for below. Given > that I posed this question because I was unsure of the answer I won't > arbitrate (although rhumb seems to have the best fit). > > > rhumb: a line or course on a single bearing > > strike: the direction of the line of intersections of a horizontal > plane with an uptilted geological stratum; a distance > > transect: a line along which a survey is made > > vector: a course or compass direction especially of an airplane > > Thanks for the replies, > > Declan > > > >Gavin MacLean's query about bearings prompted a flashback to a > >recent bit of trivia I was curious about. If one has a starting > >point and a bearing (angle) and plots a line, is there a specific > >term to describe this line or the line in the following snipit from > >Gavin's summary? > > > >>is probably the easiest solution. To use it you simply draw a line on the > >>screen and a dialog box pops up giving you the bearing and distance. The > > > >I often hear (and am sometimes guilty myself) such a line referred > >to as a bearing but this may just be an evolution from the need to > >draw lines to represent angles. > > > >Any cartotrignoentomlinguists out there aware of the proper term for > >a line generated from a starting point and a bearing? > > > >Declan > > --------------------------------------------------------------------- > List hosting provided by Directions Magazine | www.directionsmag.com | > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Message number: 3112 > > > --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 3114
