Questions tagged [fields-attributes]
Fields, also known as attributes, contain information about features.
1,252
questions
0
votes
0answers
15 views
Scripting attributes in layer in data frame using ArcPy in ArcMap [closed]
How do I use python to script the attributes in a selected layer (e.g. Age, name, size) in the dataframe in ArcMap?
I have to do this for over 40,000 maps so typing all these (Age, name, size) in a ...
0
votes
1answer
45 views
Extract some attributes in field to a new field in attribute table [closed]
I want to transfer in the TESTE field(img) only cities(strings) to a new field but but with the same numeral representation. Ex: |1| |Guimarães|; |2| |Porto|.
@BERA and @Aaron I want that the final ...
0
votes
1answer
18 views
Feature selection list missing in editor Attribute window ArcGIS
Using ArcGIS desktop 10.7
The Attributes window in Editor identifies the selected feature. However, it is no longer showing the feature selection list. (The drop down menu on the right side of the ...
0
votes
0answers
22 views
QGIS: prepare data for timeline animation
I have a data-spreadsheet containing a value-attribute that changes over time for a number of administrative units. I have a polygon layer as well with features for each of the administrative units. ...
2
votes
1answer
39 views
Filtering out attributes fields of a vector layer using PyQGIS
I have a vector layer with 50 columns/fields. I have been trying to find a way of selecting 6 columns of particular interest (by name or index) and then creating a new layer from that selection, such ...
1
vote
1answer
34 views
Showing values in attribute table in scientific (exponential) notation in QGIS3
One of my virtual field contains too big numbers like "5994865699857.456". I need to show those values in scientific/exponential mode like 5.99E+12. I didn't find proper function in Field ...
0
votes
0answers
16 views
Data flow documentation tool
I am in the process of mapping the journey of our data through the different apps used by our service. We use an ArcSDE geodatabase as main data source.
This data is
viewed in ArcMap
edited with ...
0
votes
1answer
27 views
QGIS how to activate the checkboxes of the constractions in the attribute form by Python code and add expressions?
I tried using this type of line for the edit form , but its only for versions 2.8 but I don't know how is for new version 3.0 including "Enforce not null constraint".
formConfig = layer....
1
vote
1answer
57 views
Converting text field to date field in ArcGIS Pro
How to convert date, which is in text formated field to date formated field?
Also, there is dates which have only year, without days and months and empty fields.
I've tried Convert Time Field. But it ...
0
votes
0answers
15 views
Joining attributes via webmap hyperlinks
I have a parcel dataset from Henrico County Virginia but it doesn't include parcel owner names, which would be incredibly helpful in the analysis I'm running. The county has an online parcel webmap ...
1
vote
1answer
20 views
Overlapping buffer values to create new, dynamic risk profiles around hazardous equipment [closed]
My question is similar to Creating buffers with values, and finding areas with high value overlap of these buffers
Using QGIS, I have several hundred points representing pieces of equipment, each with ...
3
votes
1answer
64 views
Converting list into field with PyQGIS
I am trying to convert a few lists into fields.
I have no problem creating the fields. I just don't have any idea on how to fill them.
if result:
layer = self.dlg.comboLayerLine.currentData()
...
1
vote
1answer
20 views
Query Result message returns 0 rows but browser shows results
I am using the Layer filter tools in QGIS version 3.14.1 Pi. (Right Click on layer > Filter)
The source data is a Mapinfo .tab-file on a Server.
When I put in my filter query, "Field_name"...
0
votes
1answer
42 views
Setting a default value in a QGIS field stored in geopackage
I try to create a vector layer with some field values which should use a QgsDefaultValue.
It works fine if I use an in-memory layer (useGeopackage=False) but fails (no default value) if I use a ...
2
votes
1answer
100 views
ArcPy can I delete the 9th column if I don't know its field name?
Is there a way to delete a field based on its number, rather than field name? For example, if the field name is FID_myshp I would do arcpy.DeleteField_management(newshp, ['FID_myshp']) but the name of ...
2
votes
1answer
30 views
Creating Virtual Layer with only desired fields
My question is very similar to this one. The difference being I want multiple fields where they wanted only a single field.
I'm trying to create a virtual copy of my layer with only the following ...
0
votes
0answers
19 views
Open Layers get WMS Layer attributes without single click event
I am using javascript open layers v6.4.3 to load data from postgreSQL database. Here is my code to create feature layer and the click event to get identify feature:
roads3Layer = new ol.layer.Tile({
...
0
votes
0answers
33 views
QGIS 3.10.8 and 3.14 crashes when opening attribute table after setting up a photo field and using lay-out form with attachment widget
I am looking for a way to address the following problem described at GitHub.
https://github.com/qgis/QGIS/issues/39063
I am looking for a repair method of the broken point layer, I mean a way
that:
...
3
votes
1answer
133 views
Transferring attributes to neighbors in point layer using QGIS
My goal is to create a wind map for an area about 300 km² in QGIS.
For this i have the data of only one weather station. The idea is to estimate the wind speed by the roughness lenght and the ...
7
votes
2answers
133 views
Dropping all fields exept one with QGIS 3 Model Builder
Is there a way to remove all but one of the fields in the attribute table (with a pre-known name) using QGIS 3 Model Builder?
The problem is, I don't want to include all of these names in the model ...
0
votes
0answers
15 views
Turning attribute table in ArcMap
I want to show the attributes of the column "PHK_text" as a row on top of the table. "PHK_text" has ten different terms and all of them should be shown on top of the table as a new ...
0
votes
0answers
17 views
Update mshp-file with SAGA GIS?
I want to update the mshp-file of a shapefile with SAGA.
My issue is: I renamed some columns of a shapefile with SAGA (saga_cmd table_tools 23). For renaming I had to give SAGA the dbf-file, because ...
0
votes
0answers
35 views
Autopopulating field based on values from different field
When we ID our utilities (water pipes, storm manholes, etc.) we use ID's derived from a grid system. Our city is divided into grids that have a letter and number attached. "J14", "J15&...
2
votes
1answer
47 views
Query to select attributes except specific fields [closed]
What is the expression in ArcGIS to select values except for specific attributes?
1
vote
1answer
38 views
Snapping lines to points according to attribute field value with PyQGIS
I would like to snap line features (.shp) to the corresponding point features based on a common attribute field they have (and not according to any distance). I have around 150 different attribute ...
2
votes
1answer
25 views
Renaming field of shapefile in SAGA
I want to rename a field of a shapefile in SAGA. I tried:
saga_cmd table_tools 23 -TABLE %dgm_snap_berg% -FIELD ID_1 -NAME Berg_ID
%dgm_snap_berg% - path to the shapefile
ID_1 - field supposed to be ...
2
votes
0answers
26 views
Show unqualified field names in ArcGIS Server map service
We have two tables:
[Server1].[Instance1].[Database1].[dbo].[Districts] -- a versioned polygon feature class with only two fields: a shape and a foreign key
[Server1].[Instance2].[Database2].[dbo].[...
4
votes
1answer
37 views
Expose the Coordinate System Parameters in FME
I would like to take fields in the Coordinate System Properties. (Data Inspector) to use as user attributes.
1
vote
3answers
48 views
Replace the attribute value of all shapes with specific value in QGIS
I'm pretty green when it comes to QGIS. I have a shapefile with a bunch of fields and farm codes of whats growing in them. However there are like 600 of them, so I want to go through and simplify. So ...
-1
votes
1answer
9 views
Multiple symbols for various attributes of the same feature
I have a point feature class where many points have more than one value for the same attribute (the values are in a single column in the attribute table, separated by commas). I am thinking of ...
2
votes
2answers
48 views
Finding if field has empty records using ArcPy
I am trying to iterate all fields in a feature class/shape file to check for empty values. If there are empty records in any field, I would like to print that field.
I know Python a little bit and ...
0
votes
1answer
35 views
Selecting attributes that contain “%”-symbol in Field Calculator
I have a Text field and it contains values that have a "%"-symbol and "°"-symbol. Example:
1.2% 3.2° 2.3% -1.2°
I don't know how to select just the values that have the "%&...
1
vote
2answers
42 views
Deleting field in shapefile based on values in field using ArcPy
I'm trying to create a Python script to automate simplifying some feature classes (shapefiles). The data table for my shapefiles look like this (all of the fields except the first four are SHORT):
...
2
votes
1answer
54 views
QGIS algorithm to copy a vector layer with select fields option
I am trying to find out if there is a way - or even an algorithm in QGIS - that enables you to effectively create a new feature layer that is a copy of an original layer but with only a selection of ...
0
votes
0answers
25 views
Copying fields from one vector to other on QGIS
I would like to copy the source fields with the same format (type, length...) from one vector to other that of course is different. is it possible? The values for each filed should be blank
So vector ...
0
votes
2answers
55 views
Extracting rows from attribute table and save as new shapefile using ArcPy
I have a shapefile made up of polylines. Polylines have a contour attribute. I want create new shapefiles based on these contour attributes. Something like this:
depth = [-10, -20, -30, -40]
map = ...
-1
votes
1answer
25 views
Crosshatched fill for polygons in overlapping categories in ArcGIS
I have a polygon layer whose color needs to represent certain categories. There are a couple of polygons that belong to two categories at once (in the attribute table, the relevant cells literally ...
1
vote
3answers
57 views
Merge Two layers Keeping only common fields
I have two feature classes that I need to merge to a single layer. There are ~10 common fields that I need to preserve and each of the two layers has some fields that are not shared.
I know that I ...
0
votes
0answers
26 views
QGIS: Splitting layer into individual shapefiles with the attribute as the shapefile name
In QGIS 3.14 I have created a layer containing multiple polygons from x/y coordinate data, but I now need to split those ploygons into individual layers/shapefiles by their different attributes - ...
2
votes
1answer
56 views
PyQGIS: looping over shapefile's fields to rename them using substring
I'm trying to rename multiple field names (about 150) of a shapefile in QGIS. Their names are different but they all end by _xf20 and I would like to remove this part for each of them.
I've looked up ...
1
vote
1answer
59 views
Returning current attribute name in QGIS Expression Dialog
In Expression Dialog, I can use $geometry to returns the geometry of the current feature.
But how could I return the current attribute of the current feature? Something like $attribute.
The purpose of ...
2
votes
0answers
31 views
When importing shapefile attributes (in a DBF) does the order of columns matter?
I'm working to import a batch of 250+ shapefiles into PostGIS. I'm using the shp2pgsql utility to load data.
While doing some basic preparation I've realized that a few are missing 1-2 columns (...
0
votes
0answers
29 views
Imported DXF has no position attribute using QGIS
I am using QGIS 3.10.8 and still getting my head around QGIS.
I'm trying to import some route data from dxf into my QGIS project. when I import and set the CRS correctly it is in the correct place, ...
0
votes
1answer
27 views
How to extract attributes from a vector layer within areas bound by polygons that are defined in another vector layer, in QGIS 3.1?
I have a few polygons defined in a vector layer (Layer A). I have another vector layer (Layer B) that contains two attributes (slope and elevation).
How can I extract the slope and elevation values in ...
0
votes
1answer
49 views
QGIS Action on layer postselect object
Hello to the community,
I´m using QGIS 3.10 LTR. In my project I have a point layer (location of pictures) with 3 different actions (open file, open folder, open html). This works fine for me.
To this ...
3
votes
2answers
192 views
Get ID from closest feature in different layer
ArcGIS Collector (Android)
ArcGIS Online
Scenario:
Users create and update features in a point FC via Collector.
Upon creation/update, I want Collector to:
Automatically get the ASSET_ID value from ...
0
votes
0answers
23 views
Shapfile attribute data processing using ArcPy in IDLE
I am working on shapefile data using ArcPy in IDLE environment. How can I access/read two attributes of a shapefile and create a scatter plot using ArcPy?
This is what I am getting:
This is what I ...
1
vote
1answer
29 views
Deleting attribute fields through SQL Server Management Studio
I have a problem. After appending annotations into the feature class on the SQL Server database I need to delete extra attribute fields that where made in the process. Usually I would just simply use ...
0
votes
0answers
54 views
Deleted fields from table in SQL server management studio and now feature class is not working properly
I am running SQL server (v10.50.6220.0) on which there are stored a couple of my geodatabases (sde schema).
Recently, I inadvertently deleted some attribute fields from an annotation feature class ...
1
vote
0answers
18 views
Saving attributes information (features) in QGIS layer
I have a road network (lines) and points (Address). I am using PyQGIS to join points to the nearest lines using the closestSegmentWithContext functionin QGIS. However, the attribute table of ...
