Questions tagged [attribute-table]

A tabular set of data linked one-to-one to a set of spatial features.

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23 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 ...
4
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3answers
61 views

Replacing all “NULL” values in multiple rows with “0”

I am looking for a way to replace all "NULL"-Values throughout multiple rows/ all "NULL"-Values in an attribute table. The table is from a SHP-File (shapefile). Is there any easy ...
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1answer
21 views

Creating heat map based on attribute from another layer in QGIS

I have a layer showing different trails in a nature areal. For each trail, there is an attribute with the usage of the trail (no. of people passing a trail counter). I now want to create a new layer ...
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2answers
87 views

QGIS Processing Plugin Generating Features with Attributes

I'm writing a QGIS processing plugin that creates a point feature layer. I'm able to add points to the feature layer just fine but the attributes I add don't show up in the Attribute Table after I run ...
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40 views

Calculate multiple fields from joined fields

QGIS 3.14. I just joined a table to my a layer with already multiple fields. I want to replace the values in all the original fields with the values in the joined table. I'm searching a way to ...
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0answers
22 views

Merge attribute table with conditional statements in QGIS

I have two attribute tables with different values in QGIS. The merge value between both tables is an ID number, each of this ID number have more than one values related with crops and area in the ...
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0answers
19 views

QGIS Print Composer doesn't save layout of attribute box

I've added a square map to a landscape page and to the side of it I have a multi column index of street names. All is good with how it looks. I use the "Extend to Next Page" option for the ...
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0answers
59 views

Label not showing in QGIS 3

I created a line by importing a delimited CSV file and the line appears fine. I can add a label on the line by using the "begin" or "end" attributes but not the "Name" ...
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0answers
19 views

Reload table cache in ArcGIS Pro?

In ArcMap, it is very easy to reload table cache where it will call the CSV that was previously used to create the feature class to update the feature with any new data from the same CSV. In ArcGIS ...
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0answers
24 views

Trying to create an inventory form on QGIS layouts, how do I make it dynamic?

I have been working on a city's enlisted buildings inventory- that all the buildings have relevant data in their respective fields. What I am trying to do is to create a form, that I print out ...
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0answers
16 views

QGIS copy data atttribute table columns instead of join

I used the Joint data table feature in QGIS, because I though that in this way I will be able to copy these columns in the layer, which I am working on. I used the python code to develop an instantly ...
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1answer
58 views

How to stylize polygons sharing the same attributes to represent a common outline

In QGIS 3.14.16, I want to outline multiple polygons which share same attribute value. Styling the layer with the same attribute value bring the following result: The style I wish to have is: I ...
3
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1answer
78 views

Letter is gone from attribute field name after saving edits

This field name loses the letter A after I save edits. Link to SOA Before save. After save and edits applied. However, the edits are saved if I take out the white spaces.
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2answers
45 views

QGIS label text break in data attribute table

I would like to have my visible label text broken, which is too long. I found some solution here: How to split text attribute by characters in QGIS? but applying the expression to my example: left( ...
2
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1answer
36 views

Unable to use (and even to list) pure attributes tables (with no geometry in them). I need to do a flow using one containing {from, to} cities codes

I have to do a flow of home-work trips. The base of my work is a geographical layer of cities an OpenStreetMap map of French cities that has their shapes and cities codes (named : INSEE) : The second ...
1
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1answer
37 views

Find Largest Building in each Parcel (largest feature in each groupby set)

I have a question similar to this one, but the proposed approach doesn't seem to work. For context, I am new to qgis. Given a set of parcels, each with 0 or more buildings, I want to select only the ...
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0answers
9 views

Grouping vector file column attributes under another column's attribute as a hierarchy group

I would like to output attributes in a vector file I have for Land use. There are three categories that are in hierarchical order. The columns represented in the attributes table are: PRIMARY_20 > ...
1
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1answer
18 views

How to filter for distinct values and apply multiple filters in QGIS attribute table?

I am very new to QGIS. I am doing an assignment for class where we have to answer several questions about data obtained from Global Fishing Watch. One of the questions is how many vessels have a ...
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0answers
105 views

QGIS N:M relations - possibility to edit multiple features?

I have a working QGIS project with multiple relations and all is well until I try the Toggle multi edit mode for N:M relations. I'm working with QGIS 3.10+ (3.14.16) and Windows and PostGIS. Is it ...
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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 ...
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0answers
34 views

Merge attributes of selected features not working in QGIS 3

The following option in the advanced digitizing toolbar: Merge attributes with following features is not working. According to the following query: Copy attributes from one feature to empty row of ...
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2answers
24 views

View domain code values from ArcMap attribute table?

In the attribute table of a feature class in ArcGIS Desktop 10.7.1: Is there a way to view data as the domain codes, rather than the domain descriptions?
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2answers
56 views

QGIS 3x apply one data attribute table for more than 1 layer

I have got a few layers, in which the data attribute table looks exactly the same including: Type (string) Address (string) Postcode (string) X (East) (decimal) Y (north (decimal) Latitude (decimal) ...
3
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1answer
52 views

Calculate the shortest distance between polygons QGIS 3.12

I need to calculate the shortest distance from the boundary of one polygon to the boundarylines of a set of polygons as shown in the image below I have followed the instructions according to this ...
3
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1answer
46 views

Query to select attributes except specific fields [closed]

What is the expression in ArcGIS to select values except for specific attributes?
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0answers
43 views

Why do I get missing data rows when I run this virtual layer area query?

I have a shapefile of circles called circlesdixie. I have a polygon layer called FCC (the shp download link at https://www.fcc.gov/reports-research/maps/auction-904-updated-jun20-eligible-areas/. I'm ...
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2answers
40 views

How to connect a column from a Excel table with a attribute table?

Is it possible to connect a Excel table or column from an Excel table with a attribute table in QGIS?
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0answers
57 views

Merging attributes of selected features tool not working in QGIS 3 [closed]

I want to combine some columns between 2 data attribute tables. The question, which I asked a while ago: Copying features from one attribute table to another using QGIS leads to quote long way. ...
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2answers
55 views

Script to sort attribute table (create new columns and fill them) [closed]

Starting situation: I have the following element/file: A shapefile that contains polygons that are parcels and their boundaries: The parcels are inside a big polygon () Each parcel has a unique id, ...
4
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2answers
67 views

Passing a list of strings in a QGIS attribute table with column type: String List

I have a GeoJSON file in QGIS and I created a column in its attribute table with column type: String list. I want to each cell to have two strings. The two strings are urls. I tried: 'https://i.imgur....
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0answers
18 views

Spatial Joining multiple features (from one layer) to one feature os other layer on QGIS 3.4

My objective is similar to the one especified on Joining Multiple Features to One Feature The thing is that I'm on QGIS, and seems that tools are slightly different, so that confuses me on how to use ...
4
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3answers
155 views

PyQGIS getting a dictionary for each feature of a layer with their attribute values

I need to obtain, for each feature of a layer, a dictionary with the attribute names and its values using PyQGIS. I can get all the attributes of the layer using indiv = QgsProject.instance()....
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0answers
23 views

Getting a dictionary for each feature of a layer with their attribute values using PyQGIS [duplicate]

I need to obtain, for each feature of a layer, a dictionary with the attribute names and its values using PyQGIS. I can get all the attributes of the layer using indiv = QgsProject.instance()....
1
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3answers
46 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 ...
2
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1answer
36 views

Docking tables on top of another and viewing both the tables simultaneously in QGIS

How to dock attribute table in QGIS such that both tables can be docked horizontally and viewed at the same time?
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0answers
13 views

Geometries associated to attribute table features not displayed (QGIS 3.4)

I'm having this problem with some data downloaded from a Brazilian prefecture, and don't understand why this is happening. When uploaded to the platform, QGIS displays the undefined CRS message. After ...
2
votes
1answer
28 views

Automatically uncheck Boolean field depending on current year

I'm preparing QGIS for field work. We want to check on street lamp posts. I have three columns: "Checked" (type Boolean) "last checked" (type string, contains only the year of the ...
0
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0answers
29 views

How do I obtain the coordinates of the points that define the polygons' shape in ArcMap (not the centroid)?

I'm starting at ArcMap. I want to export the coordinates of the points that form the line that defines the shape of each polygon. I can add a new field to the attribute table, but when I calculate the ...
0
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2answers
38 views

Problem with making a piechart in ArcMap , because of <Null> values in attribute table?

I have a problem when trying to make a pie chart in ArcMap, In the middle-right polygon there is no piechart of age groups. I think the reason is that in attribute table, there are some NULL values ...
0
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0answers
39 views

QGIS Calculate Attribute Value from sum of dependent Point features

I have two layers one with line geometry and other with point geometry. Features from both the layers are perfectly snapped. In the line layer, I want to calculate the field which is depend on ...
1
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2answers
47 views

Calculate the value of two different fields (int), and summarize those two into a new field in attribute table [closed]

I am trying to make a pie chart, that means I have to connect some fields in AT. How do I sum two integer fields into a new created field. The sum should also be connected to the different object id. ...
0
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2answers
54 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 = ...
2
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3answers
40 views

Merging polygons into one single feature

I have 73 polygons of Protected Areas, and I want to merge this into one single feature of protected areas and calculate area total of all of them, I tried using the merge tool, but I keep getting the ...
3
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2answers
59 views

When using case when in QGIS 3, even without else, all other previously filled cells are replaced by NULL

I would like to update a column with different strings based on other strings in another column. For instance : if A, B, C in column 1, write Cat1 in column 2. So I use "case when". But even ...
3
votes
1answer
34 views

Creating value in QGIS based on multiple “OR”-conditions

Different cities are part of the same subregional group. I would like to assign this same name to all these cities. I want to live the other cells empty. So far I have tried these but it doesn't work: ...
1
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1answer
26 views

QGIS 3.10: attribute form showing foreign key instead of referencing field

In a QGIS 3.10 project, I've set up a relationship between two postgis table. In postgis, table A has two unique fields: "id" and "name". "Id" is the primary key but &...
3
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2answers
96 views

Grading layers according to CMYK color codes in Attribute Table

I have been trying for some time to color grade a geological map according to CMYK values given in the attribute table. I have not yet succeeded. I am certain that is just a simple line of code that ...
4
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2answers
63 views

Searching for a feature across multiple shapefiles in QGIS [closed]

There an extremely useful search tool in ArcGIS that searches everything in the project - is it possible to do this in QGIS, i.e. searching the whole project for a feature.
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0answers
25 views

Attribute Table not showing newly created features

I'm using ArcMap. I have a File Geodatabase Feature Class stored in a network geodatabase. I have approximately 30 feature classes on our "Master" mxd file, but one of them has a major issue....
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0answers
22 views

Merge Polylines by Field Attribute & Sum Other Attributes at the same time [QGIS]

I'm working with a dataset of road links, each link has a flow assigned to it. I have 3 separate shapefiles of these links based on their times - AM, Interpeak and PM peak. I have merged all these ...

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