New GPS Visualizer featu "range rings"

Thanks to a request by Darren Bedwell of the Central Indiana Soaring
Society, I've added a new feature to the Geographic Calculators page at
GPS Visualizer: "range rings." (I don't know what the official name
for something like this would be, so I've borrowed a term that I've
seen on weather radar interfaces.)

Basically, you give it a point and a radius (or multiple radii), and it
will plot the circle, or concentric circles, on a map in the format of
your choice.

http://www.gpsvisualizer.com/calculators (3rd form down, for now)

For the center point, you can enter raw coordinates or ICAO/IATA
airport codes. (If the airport you're looking for isn't found in the
database -- which certainly may happen, especially with the small
airports used by gliders -- please let me know and I can add new
information upon request.)

I don't have this integrated smoothly with the rest of GPS Visualizer's
mapping functions yet, but: if you click "Show coordinates" instead of
the "Draw map" button, you'll get a text file of a "track" representing
the circle, and you can easily upload that to the map form along with
your other data.


If you haven't seen GPS Visualizer before, please drop by and check it
out at http://www.gpsvisualizer.com/. It's free, platform-independent,
and it supports many GPS data file formats, as well as mapping of
street addresses or raw coordinates. Output can be in the form of
SVGs, JPEGs, PNGs, Google Maps, or Google Earth KML.


Adam Schneider
adamschneider.net


..

Very cool. Not sure what the application is, but very cool : )

Very cool. Not sure what the application is, but very cool : )

Keeping clear of TFR's.

"john smith" wrote in message
...
Very cool. Not sure what the application is, but very cool : )

Keeping clear of TFR's.

Getting the area allowed during a homebuilt fly off period.

john smith wrote:

Very cool. Not sure what the application is, but very cool : )

Keeping clear of TFR's.

Hmmm. I just looked up the definition of TFR (I'm not a pilot myself)
and learned that maybe I should add a couple lines of code to recognize
nautical miles as units, since that's what the FAA uses. What's the
usual abbreviation for those? NM?


By the way, the original request for this feature was from a glider
pilot who wanted a way to visualize the "silver," "gold," and "diamond"
distances of sailplane flights. So there's one application, anyway.


Adam

Adam Schneider (that's me) wrote:

Hmmm. I just looked up the definition of TFR (I'm not a pilot myself)
and learned that maybe I should add a couple lines of code to recognize
nautical miles as units, since that's what the FAA uses. What's the
usual abbreviation for those? NM?

Done, by the way. I looked up Nautical Miles on Wikipedia, so you can
now enter a radius as "NM", "n.m.", "nautical miles," or even "knots,"
and it should be recognized. (I know a knot isn't a measure of
distance, but what the hell, why not? No pun intended.)

http://www.gpsvisualizer.com/calculators


Adam

On 12/14/2005 15:29, Adam Schneider wrote:

Adam Schneider (that's me) wrote:

Hmmm. I just looked up the definition of TFR (I'm not a pilot myself)
and learned that maybe I should add a couple lines of code to recognize
nautical miles as units, since that's what the FAA uses. What's the
usual abbreviation for those? NM?

Done, by the way. I looked up Nautical Miles on Wikipedia, so you can
now enter a radius as "NM", "n.m.", "nautical miles," or even "knots,"
and it should be recognized. (I know a knot isn't a measure of
distance, but what the hell, why not? No pun intended.)

because it is a measure of speed and not distance?

Why not 'Hot Dogs' then? ;-)


http://www.gpsvisualizer.com/calculators


Adam


--
Mark Hansen, PP-ASEL, Instrument Airplane
Sacramento, CA

On Wed, 14 Dec 2005 15:37:07 -0800, Mark Hansen wrote:
because it is a measure of speed and not distance?

Why not 'Hot Dogs' then? ;-)

Shirley he already has feet.

Originally Posted by

Very cool. Not sure what the application is, but very cool : )

You were asking what the application of "image rings" was - this is a great tool (range rings) when you want to know what lies a certain distance away from a certain fixed point.

For example I work in the mineral exploration business and it is very useful to be able to plot up a point and then to draw a circle of a certain distance around it.

A current example is that we are drilling a borehole and have been told the next one will be 200 metres away at a bearing of 135 degrees. I have been able to plot this data up using this amazing website (www.GPSVisualizer.com) and see exactly where the next drill site will be on Google Maps (another amazing website with free satellite imagery that a few years ago would have cost a couple of thousand dollars to buy that is now free)

Micky

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