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Questions tagged [autofields]

AutoFields is a QGIS plugin to configure automatic attribute updates when creating or modifying vector features.

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Auto-populating 'from' and 'to' columns of a line feature according to the point features the line begins and ends at [duplicate]

Within QGIS, I have a 'cable' layer and within such layer I have the columns 'from' and 'to'. The use of this 'cable' layer demonstrates a real-life cable travelling from one piece of equipment to ...
joeliketoe's user avatar
1 vote
1 answer

How to automatically update field creator orders

I'm new to QGIS and want to visualize two attributes of a Layer: a) name (name of a hilltop) b) fotoid (referring to a photo of that hill) Therefore I created a new field: "combined" with ...
Michael Stein's user avatar
2 votes
1 answer

How to use the field calculator to generate an autoID

I am trying to get the Field Calculator on QGIS to create an autoID and I am using this expression '5EL_' ||@row_number It works in the preview, but when executed the field is blank. How do I fix ...
Janine McMahon's user avatar
2 votes
0 answers

QGIS 3.16 Use change state of a checkbox as a trigger for updating another field

I want to record the date/time of field survey for features. This should only be updated at the moment a checkbox value is ticked. Further edits would be needed to the record later, either in the ...
Swordnut's user avatar
4 votes
1 answer

QGIS Autofields expression function editor

I would like to have an Autofield that returns the length of a line segment plus 20. If that value is less than 150, I would like the Autofield to return 150. I am having trouble with syntax in the ...
efrank's user avatar
  • 419
5 votes
0 answers

Functionalities of expression builder in Autofield plugin available in QGIS 3.4?

Basically, what I try to do is automated calculation while editing (not with field calculator). In QGIS 2.18 you could do automated calculations while editing with the Autofield Plugin. Since QGIS 3....
Wouter Verhelst's user avatar
3 votes
2 answers

Automate filling of attribute table using QGIS?

I am new to QGIS and wish to automate my current process. In my project I have to open the attribute table of the batch_16 layer having 5 fields (date, checked_by, td_created, td_catagor and ...
Keshav Sharma's user avatar
5 votes
2 answers

QGIS how to sum a certain vector field inside a polygon and populate a field in the polygon?

I have a polygon with vector point civic addresses inside it. Each civic address has a different number residence. I want to sum the total number of residence inside that polygon and it populate a ...
Andrew's user avatar
  • 127
2 votes
1 answer

Expression to run two geometry functions in expression builder

I have feature polygons that sit within and across larger tenancy polygons, I need to transfer the tenancy reference from the tenancy polygons to the feature polygons. To do this I am using AutoFields ...
P Dreyer's user avatar
  • 145
1 vote
1 answer

Return all IDs of point features within a polygon to one field

On QGIS 2.14.14 I am trying to compile Old Land Parcel ID codes on to New Land Parcel geometries. The Old Land Parcel IDs are recorded as point data and the New Land Parcel geometries are polygons. ...
P Dreyer's user avatar
  • 145
3 votes
1 answer

Copy attribute values between same ID features QGIS

I'm trying to copy multiple attribute values between two features in a geojson with the same value of another field (like an id). For example: id= 1 field = A if in another record I repeat id =1 ...
pacuga's user avatar
  • 103
7 votes
2 answers

Calculating area of newly added polygons on same layer?

I have a layer where I had 6 polygons. I then used the field calculator so I could get a column with the area of each of these polygons and I thought this would be applied to any other polygons I made ...
Guilherme Salles's user avatar
14 votes
4 answers

Making QGIS attribute table field automatic?

I'm working in a way to make hydrologic projects using QGIS and an Excel worksheet that I have. To do this, I want to extract some information of the lines, included in a vector layer, which ...
LeoNazareth's user avatar