About Coordinate Master
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...
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, inverse, and sun angle. 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 support over 1700 coordinate systems. Lat/lon, UTM, US coordinate systems (including US State Plane), Australian coordinate systems (including GDA2020), UK coordinate systems (including Ordinance Survey) and many, many others are supported. You can also create your own coordinate systems if you know the parameters.The app also supports 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 supports 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 compass 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-13). See http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html for full details. Years from 1900 through to 2025 are supported.
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.
The app also includes a sun angle calculator which can be used to compute the location of the sun in the sky at any location for any date and time.
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 user projections file.
Previous Versions
Here you can find the changelog of Coordinate Master since it was posted on our website on 2014-06-13 13:49:51.
The latest version is 8.0 and it was updated on 2024-04-22 12:19:02. See below the changes in each version.
Coordinate Master version 8.0
Updated At: 2023-08-02
Changes: 8.0: Updated to target Android SDK 33.
7.9: Updated to target Android SDK 31.
7.8: Fixed a bug related to coordinate systems with a spherical ellipsoid.
7.7: Allow Coordinate Master to handle "geo" intents via the Android share menu.
7.6: Bug fix.
7.5: Handle special arabic number characters.
7.4: Added option to show heights in metres or feet.
7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
Coordinate Master version 7.9
Updated At: 2022-10-08
Changes: 7.9: Updated to target Android SDK 31.
7.8: Fixed a bug related to coordinate systems with a spherical ellipsoid.
7.7: Allow Coordinate Master to handle "geo" intents via the Android share menu.
7.6: Bug fix.
7.5: Handle special arabic number characters.
7.4: Added option to show heights in metres or feet.
7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
7.1: Upgraded to target Android SDK 30 as required by Google.
Coordinate Master version 7.7
Updated At: 2022-01-01
Changes: 7.7: Allow Coordinate Master to handle "geo" intents via the Android share menu.
7.6: Bug fix.
7.5: Handle special arabic number characters.
7.4: Added option to show heights in metres or feet.
7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
7.1: Upgraded to target Android SDK 30 as required by Google.
7.0: Big fixes for Sun Angle page.
Coordinate Master version 7.5
Updated At: 2021-07-25
Changes: 7.5: Handle special arabic number characters.
7.4: Added option to show heights in metres or feet.
7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
7.1: Upgraded to target Android SDK 30 as required by Google.
7.0: Big fixes for Sun Angle page.
Coordinate Master version 7.6
Updated At: 2021-07-25
Changes: 7.6: Bug fix.
7.5: Handle special arabic number characters.
7.4: Added option to show heights in metres or feet.
7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
7.1: Upgraded to target Android SDK 30 as required by Google.
7.0: Big fixes for Sun Angle page.
Coordinate Master version 7.3
Updated At: 2021-06-02
Changes: 7.3: Show location of data files on "About" dialog.
7.2: Allow entry of OS grid refs when British National Grid selected.
7.1: Upgraded to target Android SDK 30 as required by Google.
7.0: Big fixes for Sun Angle page.
6.9: Fixed crash bug.
6.8: Bug fixes.
6.7: Bug fixes.
6.6: Updated to target SDK 29 as required by Google. Fixed a bug.
6.5: Show a welcome message the first time app is run. Added ability to rename and delete points in the list by long pressing.
Coordinate Master version 7.1
Updated At: 2021-04-25
Changes: 7.1: Upgraded to target Android SDK 30 as required by Google.
7.0: Big fixes for Sun Angle page.
6.9: Fixed crash bug.
6.8: Bug fixes.
6.7: Bug fixes.
6.6: Updated to target SDK 29 as required by Google. Fixed a bug.
6.5: Show a welcome message the first time app is run. Added ability to rename and delete points in the list by long pressing.
6.4: Allow entry of any year after 1900 for magnetic field calculator.
6.3: Updated to use IGRF-13 model.
Coordinate Master version 7.0
Updated At: 2021-01-26
Changes: 7.0: Big fixes for Sun Angle page.
6.9: Fixed crash bug.
6.8: Bug fixes.
6.7: Bug fixes.
6.6: Updated to target SDK 29 as required by Google. Fixed a bug.
6.5: Show a welcome message the first time app is run. Added ability to rename and delete points in the list by long pressing.
6.4: Allow entry of any year after 1900 for magnetic field calculator.
6.3: Updated to use IGRF-13 model.
Coordinate Master version 6.8
Updated At: 2021-01-14
Changes: 6.8: Bug fixes.
6.7: Bug fixes.
6.6: Updated to target SDK 29 as required by Google. Fixed a bug.
6.5: Show a welcome message the first time app is run. Added ability to rename and delete points in the list by long pressing.
6.4: Allow entry of any year after 1900 for magnetic field calculator.
6.3: Updated to use IGRF-13 model.
Coordinate Master version 6.7
Updated At: 2020-11-01
Changes: 6.7: Bug fixes.
6.6: Updated to target SDK 29 as required by Google. Fixed a bug.
6.5: Show a welcome message the first time app is run. Added ability to rename and delete points in the list by long pressing.
6.4: Allow entry of any year after 1900 for magnetic field calculator.
6.3: Updated to use IGRF-13 model.
6.2: Bug fix.
6.1: Added a sun angle calculator on main menu to compute the position of the sun in the sky.
Disclaimer
Official Google Play Link
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