Questions tagged [fields-attributes]

Fields, also known as attributes, contain information about features.

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400 views

Selective Dropdown menus in QGis 3.0

So far I can create a dropdown menu but in the shown example I could still choose 'coins' in "type" and '5$' in "value" which is wrong. Are there rules I can add to make the options in "value" ...
5
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1answer
2k views

Where are the attribute summaries in Join Attributes by Location in QGIS 3.2.0?

I have recently switched from QGIS 2.18.21 to QGIS 3.0, and as of today, to the shiny new QGIS 3.2.0. I need to do some spatial joining so I was quite surprised to find out that in QGIS3, it seems, ...
1
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1answer
90 views

Add fields from a feature to a feature in another layer

I have a criteria to select the features from a layer that overlap the features of another layer, but i do not know how to copy the fields at the same time: Tyhe code does: - two layers (1 and 2) of ...
3
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0answers
56 views

Use vector layer attributes as edge properties of a QgsGraphArc with PyQGIS

With PyQGIS 2.18 I created a QgsGraph as describe in the PyQGIS developer cookbook, Release 2.18, ch. 21.2, pp. 95-97. In the cookbook it says "Vector layer attributes and length of an edge can be ...
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0answers
33 views

Can't see the Fields I'm trying to add in pyQgis?

On Qgis 2.14.11 I successfully made buffered envelopes from my "roads" Qgsvectorlayer, and they load fine on the screen. I am now trying to feed a QgsFields object to a vector layer shapefile and I ...
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3answers
152 views

Selecting by attributes in ArcMap?

Using ArcMap 10.6 I am trying to 'select by attribute' data that is separated by a comma. For example: passive, football, soccer or passive, playground and so on with the objective to calculate the ...
1
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1answer
59 views

New field added whenever I export shapefile to the geodatabase

I don't know why this is keep happening, but I created shapefile in QGIS and opened the shapefile from ArcGIS. I needed to create geodatabase to put in all of my shapefile, but whenever I do that, ...
1
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1answer
119 views

$Length-attribute output

I created a layer to visualize cable-laying and want to export the sum of the cable-lengths to an excel file when I'm done so i created an attribute for it. How do I link an attribute to the auto-...
2
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2answers
769 views

Create attributes from unique values of another features classes category attribute with FME

I have a table (say landuse polygons for example) structured as follows: ID | landuse_category --------------------- 1 | woodland 2 | industry 3 | farmland 4 | woodland 5 | lake 6 | farmland 7 ...
1
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1answer
58 views

Replace NULLs within a ListFields loop

I have some difficulties to change "NULL" values to zero in all "DOUBLE" fields in feature class. I have tried to make a script tool with the following Python code in ArcGIS 10.5 but it didn't work. ...
2
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0answers
44 views

Attributing Points based on Direction

Using QGIS 2.18.16 I am looking at "renaming" or changing the attributes of points to a unique attribute based on the direction of the points. For example A1, A2, A3, then next row starts over as B1, ...
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2answers
76 views

Script Python on ArcGIS works but do nothing [closed]

I am trying to automate a loop for the Alter Field tool. As the code snippet that comes with the help fits my problem, I used it by changing the workspace path. I also tried passing the path with ...
2
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0answers
63 views

Adding script tool to ModelBuilder in ArcMap?

I have create a script and want to add it to the model I have provided. The code is: import sys, string, os import arcpy import numpy Table = arcpy.GetParameterAsText(0) Field1 = arcpy....
2
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0answers
183 views

QGIS - Default Date Formats

I manage a fairly large estate of QGIS installs in the UK and am looking to set the default date formats to the uk dd/mm/yyyy format from our MSSQL data warehouse. Its set and works correctly in the ...
1
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1answer
695 views

cannot delete fields in ArcGIS Pro

In ArcGIS Pro 2.1, when I attempt to delete a field (via the attribute table, field view) or a feature class, my process fails and I get the following error message: Table is being edited, failed ...
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0answers
96 views

Change Layer Field DataType

I want to change data type of a field to type esriFieldTypeOID in a layer. So i copy existing field into a new field than delete existing field first and than change datatype for copied field and than ...
2
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1answer
82 views

Can ArcGIS Transpose Fields tool output as numeric?

My table stores the same variable for each year in separate fields - ex. Pop2010, Pop2011, Pop2012. I used the Transpose Fields tool to transpose the years to long format. It transposes as expected ...
0
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1answer
89 views

Renaming fields in new layer using MakeFeatureLayer?

I have feature class that contains many fields. I'm using MakeFeatureLayer tool in arcpy to make a new layer that would contain selected fields with different names. Here's the code I've written to ...
1
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1answer
156 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 ...
0
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0answers
66 views

Adding field in attribute table on several layers using ArcGIS ModelBuilder?

I have about twenty separate polygon-layers, all consisting of almost - but not entirely, the same information in their current attribute tabels. However, now I want to add a field in the attribute ...
0
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2answers
65 views

How do I make an attribute that will show the size of my polygon

Im trying to Create a feature layer for the scaring (Area burned) for hazard reduction burns on Arcdesktop and would like to have an attribute that shows the size of the polygon used. Eg: I finish ...
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2answers
90 views

Selective attributes not displaying in GeoCortex Essential Manager

I'm having trouble with Geocortex Essential Manager displaying the full set of attributes for a particular feature. Specifically, I have a parcels dataset and 4 related tables. I recently added a new ...
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0answers
111 views

How to get an image in my Raster field to show up in the pop up?

I am making a map of a neighborhood using GIS and ArcGIS Pro for the first time. I have a field in my lot feature for a raster to attach a picture of each lot to. I can see the picture under my ...
1
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0answers
629 views

Edit Field Name In Attribute Table (QGIS 3) [duplicate]

This seems like such a simple task, yet after researching how to execute it in QGIS I've been unsuccessful. I'm merely trying to rename columns in my attribute table. My existing field is currently ...
1
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1answer
89 views

QGIS project with integrated images

I would like to know if anyone knows how to incorporate images as attributes in a QGIS project, and that these are displayed even if the folder containing the project and the source files (shapes, ...
4
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0answers
73 views

Creating Raster that sums up input polygons using QGIS?

I am using QGIS and I have a shapefile with buildings. From these buildings, I have built Buffer with variegating radius. The Buffer also have data about the demand for Parking spots for each building....
2
votes
1answer
1k views

Auto-increment ID in shapefile table when adding new feature

In QGIS I have a shapefile containing about 2000 features where I added a unique ID using the $id expression . I want to continue adding features to the same table, using the attribute feature pop-up ...
0
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1answer
65 views

Alter Field & Add Portion of Filename to Field Name

I have 350 tables in a geodatabase. Using a python script I want to iterate through all 350 tables and alter the field names of 3 fields in each table. I'd like the new field names to contain part ...
2
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1answer
67 views

Using Sum in QGIS Attributes?

How to sum all 'Luas_sawah' attributes in accordance with the 'Kabupaten' attributes?
1
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2answers
224 views

Multiple conditions for new field return NULL value in QGIS when using field calculator [duplicate]

I have a field with building height in levels. I want to create a new field that returns 'low-rise' if buildinglevels < 4. That returns 'mid-rise' if building level is 4-9 and that returns 'high-...
2
votes
1answer
272 views

Auto Fill Field with Value based on Location

My Question is the same as this: except I am using ArcGIS 10.5.1 Autofill field based on location in QGIS I do not want to use field calculator, is it possible to have certain fields auto-populate ...
-1
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2answers
639 views

Delete Rows in Qgis using Field Calculator [closed]

I tried to delete all rows where Field "Width" has value 2?
3
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2answers
98 views

Automatically write attribute when creating features in QGIS

Using QGIS 3.0 I have to draw a lot of features on the map and these features have attributes that change with each entry. However, there is a part of the attribute that is the same for all features. ...
1
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3answers
829 views

Combine multiple rows in attribute table into one

I'm running into problems while trying to edit some data. I'm trying to merge a number of land-use categories into less categories. So for example I have 5 types of "forest" which I want to merge ...
1
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0answers
185 views

Renaming ESRI default SHAPE_Length and SHAPE_Area fields [closed]

I have been working on a draft feature class that will eventually go into our production database, and I just tested it against my organization's standards, but it fails because the "SHAPE_Length" and ...
0
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2answers
79 views

Combing rows together/Summing up the data in an attribute table

There are approximately +1,000 rows, almost all of them have the same name but are split up with different lengths. I was looking for a way to combine the rows based on length and combine the names ...
1
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1answer
276 views

How to populate auxiliary fields in QGIS 3?

After creating a user field in the auxiliary storage, how can I populate this field with a default value? Normally I'd do this in the attribute table with "Update All" or "Update Selected", but the ...
1
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0answers
2k views

Add Geometry Attributes doesn't work for feature classes but does work for shapefiles

I'm trying to add start and end point coordinates to a line feature using the LINE_START_MID_END geometry property of the Add Geometry Attributes tool. Every time I use the tool on a feature class in ...
1
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1answer
93 views

Field format when saving joined layer from xls

If I perform a join of an xls file to a shapefile and then save it as another shapefile, my numeric fields from the xls are displayed with many decimal ceroes. Here is an example: The upper table is ...
11
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1answer
1k views

Adding text fields with more than 255 characters?

I'm working on a QGIS project where I have few shapefile layers with text fields. I would like to add whole paragraphs as descriptions to the text fields, however the fields are limited by their ...
1
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1answer
30 views

Buffer Not Taking Attribute Table Information

I have joined a spreadsheet to a polyline shapefile. The information from the spreadsheet is present in the attribute table however when I apply a buffer the information is not in the attribute table ...
0
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1answer
631 views

Field values missing from quantity symbology options in ArcMap?

I am using ArcMap. I joined table data to the latest TIGERLine tract shapefile for my county and exported the data. When I attempt to create a choropleth/thematic map, many of the fields in the ...
4
votes
1answer
174 views

Sharing properties for SQL server table in QGIS?

I have a project where most of the layers come from a SQL server. Most of the layers contain pointers to, and/or drop down list for, attributes so that there is consistency in data entry. This project ...
1
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3answers
125 views

Union of two Point Features which are close to each other, but have got an offset?

I have one Point Shapefile with the correct geographic position, lets call it A. I have another Point Shapefile with the attributes I need, but with an offset of 0,7m or so (it varies a bit from ...
1
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1answer
52 views

Is it possible when filling in an attribute to get a pop up where you can pick an object from another layer and choose wich attribute to copy from it

When asked to fill in an attribute from an object, I want to click on another object from another layer and choose which attribute I want to put in. Other methods, tips and tricks to achieve the same ...
1
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1answer
236 views

Changing “Number Format” to “Numeric” in ArcGIS Pro?

I'm having some trouble creating a dot density map. When I use the dot density symbology, all the fields don't show up to choose from. I think this is because some of my fields don't have a number ...
1
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1answer
1k views

Converting Double to Long Integer Value Using ArcGIS Field Calculator

I need to convert double fields to long integers using the field calculator in ArcGIS. However, when I do this, I keep getting zero values rather than the actual values.
0
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1answer
688 views

Merging Features with Equal Values in one Attribute Table Field?

I'm trying to merge all the features in a shapefile that have the same value under a certain field in the attribute table. Right now, I open the attribute table and use "Select by Attributes" to ...
4
votes
1answer
133 views

What does “Do you want to reset the field mapping” mean in QGIS Refactor Fields dialog?

I want to convert the type of some fields in a vector layer from String to Real. I am trying to use the Processing -> QGIS geoalgorithms -> Vector table tools -> Refactor fields tool to do this. When ...
1
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1answer
63 views

CalculateField_management, python Toolbox

I am trying to fill a field and I am using arcpy's CalculateField_management function. I want to fill the new field with the name of the shapefile, so I am using arcpy.Describe. But when I run the ...