Mapping and GIS Solutions Community

Hello. We're going to use Trimble Catalyst DA2 + Catalyst 1 subscription plan.
Using this API and product, can we receive the altitude of the point we're at?

The next question is can we get the metadata of the requested point? For instance, if we pass the longitude and latitude of the necessary point, can we get altitude and the rest metadata of it?

Also interesting, which metadata of the point can we receive also?

Following this question….

Hi Andrii,

The Trimble Catalyst DA2 receiver with the Catalyst 1 subscription plan is capable of delivering cm level accuracy globally, depending on conditions. By default the receiver provides a 3D position, that is longitude, latitude and height as well as additional meta-data. How you consume the positions that the receiver provides will depend on your application, the platform you are running on and your ability to integrate. The accompanying utility, Trimble Mobile Manager (TMM) lets you manage the GNSS output of your receiver, with access to rich geodetic capability providing support for GNSS output in local coordinate systems and a wide selection of geoids.

I'll try to give an overview:

iOS

• Positions from the receiver are provided to location services directly from the receiver, as long as you are running Trimble Mobile Manager to provide corrections to the receiver you will get accurate positions, however iOS will only report accuracy to 5m. The height will be ellipsoidal. Coordinate systems and geoids have no impact on the position supplied to iOS location services.

Android

• TMM provides position data and additional 'location extras' meta-data to the OS via mock locations. This position data will include either ellipsoidal or orthometric height depending on configuration in TMM. Android will show the position accuracy that the receiver provides. These positions will be in whatever coordinate system has been specified in TMM.

iOS and Android

• TMM makes position and meta-data available via a WebSocket, this will provide your 3D position data and will give either ellipsoidal or orthometric height depending on configuration in TMM. This requires some development within your app.
• Trimble has a very rich SDK available, TPSDK, which provides applications with the ability to integrate directly with Trimble receivers. This route would be recommended only if you had very specific requirements to do so, and would need to be done alongside TMM for Catalyst licensing handling. This route requires more extensive development and some level of geodetic knowledge.

I hope that helps. Regards,