GIS data collection app for points, lines, polygons and photos
GIS data collection is more than saving a location. The attribute, layer, photo, note and export format matter.
Field takeaways
- GIS field data includes geometry and attributes.
- Layer names are part of data quality.
- Photos and notes make features understandable.
- GeoJSON, KML and DXF serve different delivery needs.
- MapLab Survey brings GIS field capture closer to survey workflows.
Decide the data model before the first point
GIS data is designed at the desk before it is collected in the field: which layers exist, which features are points, lines or polygons, and which attribute fields will be filled. Adding a field after two hundred records usually means another site visit; five minutes of planning cancels that visit in advance.
Closed lists beat free text
If everyone describes a condition in their own words, the same defect gets recorded five different ways and none of them can be counted. A pick list in the attribute form is faster in the field and makes the results comparable in the office.
Geometry should match the asset
Discrete assets are points, runs are lines, areas are polygons; converting one into another afterwards is guesswork. Without the discipline of saving every feature to the right layer, the data reaches the office mixed, and sorting it takes longer than collecting it did.
A shared language for surveyor and GIS user
The surveyor asks for coordinates, accuracy and checks; the GIS user asks for layers, attributes and formats. MapLab Survey brings the two together in one project: measure in the field, add notes, and link photos directly to the records. A photo dumped in a folder with no record attached is not data.
Choosing the export format
KML/KMZ works for quick viewing and sharing, GeoJSON or Shapefile for web and GIS systems, CSV for table checks, DXF for the CAD side. For the same data to mean the same thing in every format, layer names and the coordinate system note have to survive the export.
A last check before handover
Before exporting, reopen the project on the map: are the layers in place, are the attributes filled, is every photo linked to the right record? A crew that can answer yes to all three has already prevented most of the phone calls from the office.
See it in action
MapLab Survey | Professional Mobile GIS, GPS Surveying & Land Measurement App
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MapLab Survey handles RTK/GNSS point capture, drawing, area and volume calculations and coordinate conversion, then exports to DXF, KML/KMZ, GeoJSON, Shapefile, GeoPackage, NCZ or CSV. Capture, calculation and export work offline. Live NTRIP corrections and online basemaps need a connection.
Frequently asked questions
What is GIS data collection?
Recording field features with geometry, attributes, photos and layers.
Can MapLab Survey be used for GIS?
Yes.
GeoJSON or KML?
GeoJSON for GIS/web, KML for map sharing.
Can data go to CAD?
Yes, with DXF export.
Technical references
The field guidance in this article is aligned with the technical and official references below.
Related: Point line polygon · Exporting field data to CAD/GIS · Photo location record · MapLab Survey