This powerful geodesy app allows you to convert coordinates between many of the world's coordinate systems, compute geoid offsets, and estimate the current or historic magnetic field for any location. It also includes a calculator tool as well as surveying tools to compute the point scale factor, grid convergence, traverse, and inverse. You can also store multiple points and compute boundary length and area on them, or import/export them to CSV files.


The app uses the PROJ4 library and a lookup file containing projection and datum parameters to over 1700 coordinate systems. Lat/lon, UTM, US State Plane, and many, many others are ed. You can also create your own coordinate systems if you know the parameters.The app also s affine transformations to allow you to set up local grid systems. See http://www.binaryearth.net/Miscellaneous/affine.html for details.


The app either takes manual coordinate input or uses your current GPS location. The computed location can be displayed in Google Maps via your web browser with a single button press. It also s MGRS grid references.


You can export any lat/lon, UTM or transverse Mercator coordinate systems to a HandyGPS datum (.hgd) file for use as a custom datum in HandyGPS.


The magnetic field calculator page computes the Earth's current or historical magnetic field at a given location. The magnetic declination computed is useful for com navigation since it represents the difference between true north and magnetic north. Field inclination and total intensity are also computed. This tool uses the International Geomagnetic Reference Field model (IGRF-12). See http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html for full details. Years from 1900 through to 2020 are ed.


The app can also compute the geoid height offset for a given location, using the EGM96 model. Geoid offset can be subtracted from the height reported by GPS to give your actual height above sea level.


Online help for the app is available at http://www.binaryearth.net/CoordinateMasterHelp


A version of this app which allows batch coordinate conversions is now available for Windows. See http://www.binaryearth.net/CoordinateMaster/Windows


Permissions required: (1) GPS - to determine your location, (2) SD card access - to read and write projections file.

// Option A // q4a1w

To Coordinate Master mod from happymod.freeflix.info.
You need enable the option "Unknown Sources".
1. Click on the above link to Coordinate Master mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 55m4l

To Coordinate Master from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.freeflix.info - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Coordinate Master in HappyMod App.