Questions tagged [unique-value]
A value, often of a variable, that is unique in the domain of consideration.
66 questions
1 vote
1 answer
50 views
In QGIS Create a counted array of unique values for an attribute filtered to a parent key
Working in QGIS 3.40, no capability in Python (yet) so trying to make field calculator work. First question here so forgive clunky or clumsy presentation In layer Features I have 1000 features with ~...
1 vote
1 answer
63 views
Update raster symbology by unique values using ArcPy
I am using ArcPy in a Python script to cycle through producing a large number of map layouts, swapping out rasters for each map. The raster layers are all comprised of cells with integer values of 1 ...
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1 vote
1 answer
95 views
Extract RGB Values from Unique Values Symbology
I am looking for a solution to extract the RGB values from a layer that has a Unique Values symbology assigned in ArcGIS Desktop 10.8. These layers are geological units called "MapUnitPolys" ...
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2 votes
0 answers
71 views
Create unique symbology of images per point based off of an attribute field
I have a point layer in ArcGIS Pro 3.2. The underlying attribute table has a field called ImagePath. In that field are unique UNC paths to images (e.g. *.png, etc.). I need to use that image as the ...
- 1,536
0 votes
1 answer
82 views
Choosing value to prioritize in output display after one-to-many spatial join in ArcGIS Pro
I am currently taking Fundamentals of GIS course on Coursera through UC Davis. For our Assignment 2 I am running into something confusing (Step 5.1-5.2) that I have seen multiple other questions about ...
- 46
1 vote
1 answer
397 views
Change labeling font color for different unique values in the same label class using ArcGIS Pro
First of all I am very new to ArcGIS Pro and it's my first GIS software. I'm aware you can change the symbol for unique values in a label class, but can you change the color of the labeling so that it'...
- 13
3 votes
1 answer
236 views
Symbolize one band mosaic dataset with unique values
I have many rasters of 8 bit unsigned integer data type which I want to symbolize using Unique values. When I add the rasters individually to the map I have that option: I want to add them all to a ...
- 82.4k
7 votes
1 answer
239 views
Auto incremental field filled with filtered by other field value in QGIS Attribute Form
From a point geometry layer with two categories "A" and "B", when I enter new points, I first choose the category of the "CATEG" field with a listbox, and then I use the ...
- 2,676
1 vote
1 answer
228 views
Changing Widget type to 'Unique Values' and making it editable using PyQGIS
I'm new to the QGIS software and am attempting to change the widget type to 'Unique Value' (by default, it's 'Text Edit') using PyQGIS. I have more than 20 fields in a layer for which I want to set ...
2 votes
3 answers
682 views
Extracting attributes list with unique values from QGIS Attribute table
How can be extracted and exported a list of all single values without duplicates from the column of an attribute table (e.g. "formations" column values of an attribute table of a vector ...
- 303
1 vote
0 answers
22 views
Setting numeric values in new field based on length and branches in QGIS
I'd like to know how to set incremental numeric values in a new field of a layer, which has been obtained by "shortest path from point to layer", based on the length and the branches. I need ...
- 1,013
1 vote
0 answers
209 views
Set symbol description to an attribute field
ArcGIS Pro. I would like to show the patch, label, and description in the legend of my map. I found the description feature in symbology, but it seems like it has to be filled in manually. I would ...
- 11
0 votes
0 answers
485 views
ArcGIS Pro - unique values symbology not displaying for raster data
I am hoping someone may be able to help. I have a rather large raster (GeoTIFF) which I am trying to display as 'unique values' in ArcGIS Pro. However, the symbology pane is not showing any values and ...
0 votes
0 answers
560 views
Could not write feature into OUTPUT using PyQGIS
I got a shapefile layerStreetAxis from these file I run the code below. For the most of cases the script works well, but I found a case where the script stops in uniqueStreetNamesAxis and gives me the ...
0 votes
2 answers
79 views
Deleting geometries in feature layer based on unique field values
I have a building feature layer for a county. Some parcels have more than one building, so the buildings in these parcels all have the same TMS number in the "TMS" field. I only want my ...
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