[DogParkList] MacLoggerDX Great Circle

[stephane.winnepenninckx at agfa.com]

Don,

Maybe there is a possibility to get a Azimuthal Equidistant map from:
  http://www.wm7d.net/azproj.shtml
and to use it in MacLoggerDX.

This projection gives a map in which points on the same bearing lie 
along straight lines. Distance along those straight lines is 
proportional to distance along the great circle with that bearing. This 
projection is unique for each place on earth and a new map must be 
calculated for each location.

This means that we need one map per QTH and that location on the map 
has to be calculated differently. Not an impossible mission ;-)

--
73 de ON5WIS

On 23 Nov, 2004, at 19:35, dogparklist-bounces at dogparksoftware.com 
wrote:

> Hi Sean,
>
> On 23-Nov-04, at 1:22 PM, sean sharkey wrote:
>> A thought accrued to me during an idle moment today, a possible
>> addition to MacLogger.
>>
>> Any chance of a Great Circle Map (Based on location) which shows
>> the Grey Line Pattern. Would help lonely people like me who like to
>> work Top Band DX.
>
> How about a true 3D globe with grey line and arc between QSO and 
> location ?
>
> Great circle is useful but dreadfully distorted and hard to read. It 
> allows the line between 2 locations to be straight and shows the 
> azimuth but the length of the line loses it's meaning due to the 
> distortion of the projection.
>
>
> 73 Don Agro VE3VRW
>
> D o g   P a r k   S o f t w a r e   L t d .
>
> email: dagro at dogparksoftware.com
>   www: http://www.dogparksoftware.com
>     iChat AV:dogpark at mac.com
>
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