- #Input gps tracks cartodb android#
- #Input gps tracks cartodb software#
- #Input gps tracks cartodb Offline#
#Input gps tracks cartodb Offline#
In order to make your offline map tiles available on devices, you must manually copy or upload your MBTile files to a subdirectory within Surve圜TO Collect's "layers" directory, which exists on any device that has opened Surve圜TO Collect at least once. If you can't locate the public folder location discussed here, try installing this file manager app and using it to find and access the folder. With each new version of Android, Google makes it harder for apps to access certain areas of device storage. (Procurement or creation of the actual MBTiles files is beyond the scope of the help available here in Surve圜TO.) Loading raster-based MBTile files onto devices
#Input gps tracks cartodb software#
The MBTile specification's website also maintains an "Implementations" page, which lists software that is known to produce valid MBTile files. Raster-based MBTile files can be created using open-source tools such as TileMill, as well as through commercial products such as Mapbox Studio or MapTiler. Please note that, at this time, Collect only supports raster-based MBTile files: vector-based files will unfortunately not work. Surve圜TO Collect supports the open-source MBTile format, which provides an efficient specification for storing raster- and vector-based map tiles in a SQLite database. The layers themselves can contain any geospatial data that you are already working with or are interested in presenting, whether that be high-resolution satellite imagery, population heatmaps, or wireframe drawings. These layers can be loaded from the map interface, and their features will be overlaid onto the mapping engine's "basemap" – without the need for an Internet connection. Surve圜TO's mapping features include support for the offline presentation of layers using tiled map data. Required: offline map tiles in raster-based MBTile files You will likely need some level of technical GIS training to be able configure and manage offline maps support.
#Input gps tracks cartodb android#
It is possible to pre-load all of the necessary map tiles onto Android devices, though, and configure them to be able to use those tiles fully offline – but a warning: it's a slightly complex, technical process. On Android, this generally requires a working connection to the Internet, so that map tiles can be downloaded on-the-fly to cover the necessary geography. The geoshape and geotrace field types involve interacting with a map, as does the geopoint field type with the "maps" or "placement-map" appearance. Only Surve圜TO Collect on Android supports offline map tiles. To pre-warm GPS, go to the Collect main menu, open the three-dot menu in the upper-right, select Admin Settings, scroll down to the bottom, and select one of the Pre-warm device location options you can choose to pre-warm more or less aggressively (for greater accuracy and more time, or for lesser accuracy and less time, depending on how much battery you want to spend on pre-warming). This will consume some extra battery power at the beginning of the form, but it will make it more likely that GPS positions captured later in the form can be captured quickly. If you want your form's users to be able to more quickly capture accurate GPS positions, you can configure Surve圜TO Collect to "pre-warm" the device's GPS unit at the start of any form that captures GPS positions. Your device may still take a little while to capture an accurate location – especially after powering down or rebooting. Once it finds the satellites, it should become much faster from then on. Leave the device for a while, so that it can work. The first time you try to acquire a GPS location with a new device or in a new country, the device might take up to an hour to find the proper satellites. (Can save as closed polygon or open polyline.)Ĭlick any field type above to see more details about that particular field type, or see below for general guidance on collecting GPS data using Surve圜TO. Geotrace - for automatically tracing a path, generally by walking or driving.
Geoshape - for drawing boundaries on a map. (Can collect multiple GPS positions in a repeat group.) Geopoint - for collecting one GPS position at a time, either explicitly (with the enumerator's cooperation) or invisibly. There are three field types for collecting GPS data in Surve圜TO forms:
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