1

Suppose I have a large GeoJSON file loaded into Mapshaper. I want to convert a property to use as an ID field on export, but I don't know what the property naming schema is. The file is too large to conveniently check in a text editor.

Is there a way within Mapshaper to view available properties? I've tried using -inspect, but you have to select one record by a property - which is hard when you don't know what the identifying property's name is! I can't find anything relevant searcing for properties in the command reference.

1

Run -info in the MapShaper console using the Console button in the top right of the screen. It gives data including the properties for the first row.

enter image description here

It describes these as "attributes" in the docs, which is why searches on the term "properties" in the docs don't help. Here's the description from the docs:

-info

Print information about a dataset. Useful for seeing the fields in a layer's attribute data table. Also useful for summarizing the result of a series of commands.

# Example: Get information about an unknown GeoJSON or TopoJSON dataset
mapshaper mystery_file.json -info

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.