A few years ago I found myself just south of Paris, France one Sunday with a car and the inclination to do some sight-seeing. Since I was alone and don’t speak French my saving grace was and a.
Tom Tom allows GPS coordinates to be entered as a destination, but Google Earth lists those coordinates in a different format. In researching this article I found out that. Google Maps view of the Eiffel Tower Click the x to remove the Address box and show the interactive Google Map. Use Excel to Convert GPS Coordinates for Tom Tom One of my destinations was to see the Eiffel Tower and Google Earth shows the GPS coordinates to be 48 degrees 51 minutes 32.64 seconds North and 2 degrees 17 minutes 34.90 seconds East. (Coordinate shown as 48° 51′ 29.69″ N 2° 17′ 38.02″ E in Google Earth while holding the mouse over a position on the map.) However the Tom Tom GPS device wanted coordinate input in degrees only, where minutes and seconds represent the fractional part. So I created a quick spreadsheet to do the conversion.
Dec 23, 2013 - All of the concepts and formulae given in 'A guide to coordinate systems in. Lat & Long Format Conversions converts between DMS format,. Does anyone know where I can find the equation to put into Excel that will convert CT State Plane coordinates to Lat/Lon? Formula For State Plane to Lat/Lon.
(Click the picture to download the.xls file.). To convert from Degrees, Minutes, Seconds to a Tom Tom degree format, the math is: Degrees+(Minutes/60+Seconds/3600) This allowed me to enter GPS coordinates directly into the Tom Tom GPS device. Since I wasn’t familiar with the street names or the numbering system for locating addresses on the Tom Tom, this was much faster than trying to find the correct address in the Tom Tom street directory. The Tom Tom GPS was a loner from an associate so that was another factor in my decision to use GPS coordinates. Note: Tom Tom allows different formats for GPS coordinates, this example just mirrored settings for the GPS I was using at the time.
Use Excel to Convert GPS Coordinates for Garmin When I got back home to the USA and tried this with my Garmin it didn’t work because the required format for GPS coordinates was different. My Garmin GPS device wanted Degrees and Minutes only, with seconds being the fractional part of minutes. That formula is different because it requires some concatenation with an empty space between degrees and minutes. Degrees & ” ” & Minutes+Seconds/60 So my Excel spreadsheet helped me convert numerous GPS coordinates for my trip to Paris. I had a memorable time. Note: If you’re wondering about the North and East designations, click to see how to read GPS coordinates. Convert GPS Coordinates with Excel Here’s an interactive worksheet that you can use to figure out some GPS coordinates for yourself.
To download the worksheet using this.
I'm currently drawing up a mock database schema with two tables: Booking and Waypoint. Booking stores the taxi booking information. Waypoint stores the pickup and drop off points during the journey, along with the lat lon position. Each sequence is a stop in the journey. How would I calculate the distance between the different stops in each journey (using the lat/lon data) in Excel?
Is there a way to programmatically define this in Excel, i.e. So that a formula can be placed into the mileage column ( Booking table), lookup the matching sequence (via bookingId) for that journey in the Waypoint table and return a result? While it is easy to calculate distances over straight lines on a map ('loxodromic distances') and not that difficult over great circles ('orthodromic distances'), calculating reasonably accurate mileages over land requires much more complicated solutions to minimum-length path problems over graphs representing the routes - which in turn requires good route databases. I'd recommend to use off-the-shelf specialised software for this function, unless you don't really care about accuracy. If that's the case, let me know and I'll find the formulas.
I have them somewhere. – Aug 27 '14 at 18:27. Until quite recently, accurate maps were constructed by triangulation, which in essence is the application of Pythagoras’s Theorem. For the distance between any pair of co-ordinates take the square root of the sum of the square of the difference in x co-ordinates and the square of the difference in y co-ordinates. The x and y co-ordinates must however be in the same units (eg miles) which involves factoring the latitude and longitude values.
This can be complicated because the factor for longitude depends upon latitude (walking all round the North Pole is less far than walking around the Equator) but in your case a factor for 52 o North should serve. From this the results (which might be checked ) are around 20% different from the examples you give (in the second case, with pairing IDs 6 and 7 and adding that result to the result from pairing IDs 7 and 8). Since you say accuracy is not important, and assuming distances are small (say less than 1000 miles) you can use the loxodromic distance. For this, compute the difference of latitutes (dlat) and difference of longitudes (dlon). If there were any chance (unlikely) that you're crossing meridian 180º, take modulo 360º to ensure the difference of longitudes is between -180º and 180º.
Also compute average latitude (alat). Then compute: distance= 60.sqrt(dlat^2 + (dlon.cos(alat))^2) This distance is in nautical miles. Apply conversions as needed. EXPLANATION: This takes advantage of the fact that one nautical mile is, by definition, always equal to one minute-arc of latitude.
The cosine corresponds to the fact that meridians get closer to each other as they approach the poles. The rest is just application of Pythagoras theorem - which requires that the relevant portion of the globe be flat, which is of course only a good approximation for small distances.