All Questions
Tagged with fields-attributes qgis
166 questions
1
vote
1
answer
765
views
Create and immediately update field using Field Calculator
You can create fields and once created, populate them with data using the Field Calculator. But can you do both at the same time using an expression? Or must you do it in 2 steps?
- 76.3k
1
vote
0
answers
293
views
Reduced real-type numbers in QGIS? [closed]
I have a SHP point file created from CSV with QGIS 2.4.0 Chugiak. It contains some data on noise in a certain point. When I import from CSV, it seems to be fine, but when I export to SHP and open the ...
- 304
1
vote
1
answer
93
views
Making a criss crossing track suitable for temporal display in QGIS
I have digitised a track in QGIS from Maps.me screen shots but when displayed it is confusing as it crosses and backtracks several times.
I would like to display the track in short segments in ...
- 451
1
vote
1
answer
793
views
Change visibility of attribute field/group of field in one layer based on checkbox or value map - QGIS
i'm using QGIS 2.18.3, in Win 7.
i want to know how to make attribute field or group of fields become visible or invisible based on value of other field
on picture above, i want to make my grup ...
- 11
1
vote
1
answer
3k
views
Calculate attribute height of point data
I have an x (easting), y (northing) and z (height) values associated with my point shapefile. I would like to calculate the z values from the DTM I have - how do I do this in QGIS? I am fairly new ...
- 11
1
vote
1
answer
3k
views
How to assign a field to map tips?
In QGIS 1.8, I cannot find the way to assign a field to 'map tips'. There seems to be no way in 'properties' of the layer to do so.
- 11
1
vote
2
answers
518
views
Qgis- Merging datasets of similar data without losing attributes
I'm looking for advice on how to compile some datasets that each have a different set of attributes.
Each dataset is point data, recorded in one of the two coordinate systems that have been used ...
- 19
1
vote
0
answers
273
views
Combining attributes of point data within buffer using QGIS?
I have city data broken down into intersections and roads. Around each intersection, I have created a buffer. I also have parcel data, including the attribute "gross tax 2015" for each parcel. I ...
- 11
1
vote
1
answer
1k
views
Automatically changing the angle of a symbol in QGIS? [duplicate]
I am working with an iron age cemetery in QGIS. I marked every grave in a point layer with several columns; amongst others, burial rite (inhumation, cremation etc.). I inserted a second column for the ...
- 1,616
1
vote
1
answer
555
views
Split vector by field name and rename output files according to field value
I have a shapefile with several features and want to split the layer into separate shapefiles. I looked into similar questions recommending Split Vector Layer. However, I could not find a way to ...
- 952
1
vote
1
answer
518
views
How to store attribute values from a custom form into shapefile?
I have created a custom form (for mapping bird species in the field with different attributes like species, type of observation, number of birds, date, ...) with some Python logic.
One important ...
- 537
1
vote
1
answer
217
views
Creating new field considering duplicate and numeric values in QGIS
I'd like to create a new field considering duplicate and numeric values.
For example, I have an attribute table with duplicate values in the "field1" and numeric values in the "field2&...
- 995
1
vote
2
answers
2k
views
Filling fields instantly and automatically when creating new entity in QGIS
I have a polygon layer, I want to fill the fields automatically each creation of a polygon.
Knowing that there is a spatial relationship (intersection, contain ...) between my polygons and other ...
- 55
1
vote
2
answers
1k
views
Generating series of map for each field of attribute table in QGIS?
Using QGIS 2.8, I have a shapefile with more than 30 columns (or fields) in the attribute table. I would like to automate the creation of one map for each of them.
I gathered that the QGIS Atlas ...
- 11
0
votes
1
answer
227
views
Add "Position and additional attributes" in table
Is there any way to add to a shape attribute table "position and additional attributes" provided while tracking with GPS?
I mean, it could be useful to add automatically in the table, for each ...
-1
votes
1
answer
585
views
Converting string variable to number format without creating new variable using Field Calculator in QGIS
I have many variables which are of type string but contain in fact numbers.
In QGIS you can convert those strings to numbers by creating a new variable with the wanted numeric type (e.g. integer or ...
- 1,853