Questions tagged [features]

Use this tag when asking questions about a representation of a real-world objects on a map.

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1answer
36 views

I'm looking for a feature id without going through a for or while cycle

I'm trying to find some land from a previous vector layer loaded with geojson from the geoserver. I have a way to search: This method goes through each field in my vector layer and compares the ids ...
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0answers
15 views

Use/get ID for Feature in GeoJSON Layer

I have several features in one GeoJSON layer and also assign an id to each feature. ... "type": "Feature", "properties": { ...
3
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1answer
41 views

Executing final logic after a feature is created or changed

There is a function "Python Init function" which is called when the form is opened. Is there a function that is called when the form is closed or saved? Or is there another way to execute ...
1
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1answer
15 views

Advanced editor tracking in ArcGIS Pro

Is there a way to track edits which have been made to a feature class in ArcGIS Pro? I.e. a field being auto populated which would give information in regards to what kind of edit has been made, e.g. &...
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1answer
40 views

Showing only selected features of vector layer in PyQGIS [closed]

I am developing a Plugin in QGIS and I want to show only selected parts of a layer. How can I handle this with PyQGIS?
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0answers
31 views

How to select multiple features by mouse click event in ArcGIS JS API 3.x

I am trying to select multiple features in a feature layer by using "hold 'ctrl' button and mouse click event". I am using ArcGIS JS API 3.x. I have created the US State boundary ...
2
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1answer
62 views

Copy multiple shapefiles that intersect a polygon to a new location

I am trying to select and copy shapefiles from one folder to a new location based on if they intersect a polygon feature class. I am getting stuck in somewhere in the for loop. EDIT: The goal is to ...
4
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1answer
46 views

Avoid features to be automatically selected in table

In the screenshot below you will notice that in "Feature", a country has gotten automatically selected. I don't understand why. I have not selected any part of the data or the map. I don't ...
0
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1answer
29 views

ArcGisPro Finding street intersections with a high concentration of vehicle crashes

I'm trying to find street intersections with a high concentration of traffic crashes. First of all, I´ve tried with kernel density analysis, but I'm wondering if there is something that makes a sort ...
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0answers
20 views

Can we include any URL path for the Shapefile while creating a feature store in Deegree GIS?

I have used the Documentation and the examples of Deegree GIS application and I am able to give the path for my Shapefile in my local system, while creating a feature store just like below. <...
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0answers
29 views

Distance and Functions in Google Earth Engine: Producing function that counts points at a given distance each year

I have tile centroids tileCentroids that cover a polygon in Sierra Leone. I also have a feature collection of points of interest in Sierra Leone saved as camps. The points are only present in some ...
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2answers
55 views

Setting Flag in layout to get selected vector features to appear selected in output PDF using PyQGIS

It would seem that I am using the wrong properties setting if I had to guess. Anyhow, I have a layout template in a project that I load using python. Within the project canvas, I can select a set of ...
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0answers
20 views

Aligning raster perfectly with feature using ArcMap

I have a feature layer with 1000x1000m polygons that are seamlessly glued together. From this layer I want to create a raster with 25x25m cells as basis for further raster operations. I'm using ArcMap ...
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1answer
45 views

Color points based on values in OpenLayers 6

I'm trying to color points based on a value called 'ML_ABSOLUTE_VALUE', in a GeoJSON dataset but I can't get it to work. Here is what I have set up so far: Create the GeoJSON data source: const ...
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0answers
22 views

QGIS - Moving Line Features Large Distances

I have two layers on my map: reserve boundaries (polygons) and reserve trails (lines). I am using WGS 84 (EPSG:4326) and projected my trails from WGS 84 / UTM Zone 17N (EPSG:32617) to match my polygon ...
5
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2answers
142 views

Subselecting features in QGIS

Is there a way to subselect features in QGIS as can be done in ArcMap? For example, I have 5 features selected, and I want to look at each one of them individually (e.g.: zoom to), without unselecting ...
3
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1answer
40 views

Selecting a point and auto selecting a polygon in another layer in QGIS 3.14

I'm using QGIS 3.14 Pi and here's my scenario. I have a layer of points and each points contain a numerical value code, let's say it's 123. There may be multiple points with the same code value. In ...
1
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2answers
93 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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0answers
36 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
40 views

Split features maintaining ordnance survey map details in QGIS

I'm trying to split a polygon drawn over an ordnance survey map area that represents the total land of a farm, in order to create smaller polygons that represent individual fields. I wish to create ...
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0answers
13 views

@turf/boolean-contains reports false, even though one geometry is fully contained in another

I have the following FeatureCollection: { "type": "FeatureCollection", "features": [ { "id": 47306, "type": "Feature", ...
2
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0answers
115 views

How to correctly set the zIndex of features within an OpenLayers vector layer? [closed]

I initially add a vector layer from a GeoJSON file and label each feature: var layer1 = new ol.layer.Vector({ source: new ol.source.Vector({ url: './json_3573/country_names.geojson', ...
1
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1answer
100 views

Add an incremential number to each feature in a FeatureCollection in GEE

Bit stuck at the moment on this. I need to add an incremental number (1:total length) to each feature in a FeatureCollection in Google Earth Engine. So consider for instance the GAUL dataset as ...
0
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1answer
40 views

How to label point features with alphanumeric labels. Only allowing numbers?

New to QGIS. Using point features as markers on a map imported from Google Earth. In my first shapefile layer the alphanumeric labelling worked fine. Added in a second layer and it is only allowing ...
2
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1answer
57 views

Zooming to selected features from multiple layers using QGIS

Is it possible to zoom to features selected from multiple layers in QGIS?
1
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1answer
39 views

Layer styling with feature 1 but atlas pages generated by feature 2

How can I tell the atlas-composer to display on one page only all geometries with feature two and all the other geometries should be hidden? I have four geometries with two feature-attributes: (1) &...
1
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1answer
31 views

How to update my map with the restored features from JSON format?

I'm trying to implement a CRUD that have a map OpenLayers. First, I drawed and saved the features with writeFeatures(). Second, I'm trying to show the polygon that I drawed, and here is my problem: ...
4
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2answers
87 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.
2
votes
2answers
70 views

Difference between two features in same polygon in QGIS

I have a polygon and some features are below another features. If I would have two different polygons I would use the "Difference" tool so it would take the overlapping feauters to the "...
1
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1answer
82 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
1answer
95 views

Splitting up QGIS layer into multiple using QGIS

I have a layer (GeoJSON) with multiple features. I want to split the shapefile up into multiple shapefiles using QGIS. I don't want a file for each individual feature. Is it possible in QGIS to select ...
1
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0answers
41 views

Detaching part of feature without detaching all parts from each other?

On this map, Denmark and Greenland are one feature, and I need them to be two features. How do I split them apart? If I use Singlepart to Multipart, I create a new layer where there is a feature for ...
1
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1answer
63 views

Clip raster data by multiple shapefile in ArcPy using Clip data management tool

I have one raster data of a state and also I have 14 shapefile in same area. Now I want to clip 14 shapefile in arcpy using for loop. The issue is when I run the script its showing TypeError:'NoneType'...
0
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1answer
31 views

Why is the OBJECTID= 0 (zero)? [closed]

I consider myself fairly new to ArcGIS, in that I'm comfortable with all of the basic map-drawing functions. However, there are still things that confuse me. I am working on a project where I must ...
1
vote
1answer
39 views

Identify Features Incorrect Selection

The identify features tool returns the wrong selection when I try to select multiple features. In the image, I am trying to select the orange region, but QGIS is identifying the red region (located ...
1
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1answer
84 views

QGIS 3.10.8 Add features and attributes to exisiting layer using python

Is there a way to add features from one layer to another while matching attribute names using Python? Using QGIS 3.10.8 I am trying to add features to an existing layer. I have been using the code ...
2
votes
1answer
436 views

Google Earth Engine; rename columns in FeatureCollection

I have a Feature Collection I'm exporting as a csv. I used the reduceRegions function to get mean values of several different variables per region, and merged these into one large FeatureCollection. I ...
1
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0answers
37 views

How to set my own QDialog Form instead QGIS QgsAttributeForm

I'm working in a QGIS plugin which its functionality is to facilitate the creation of custom attribute forms with complex logic to QGIS users without python knowledge. In order to do this, the user ...
1
vote
1answer
36 views

Feature causing error in Climate linear regression analysis

In my code, for an unknown reason one of the features (in a FC with a few thousand conflict locations and their dates) is causing a problem leading to this error: FeatureCollection (Error) Error in ...
0
votes
1answer
120 views

Exporting table of daily temperature (ERROR: Internal Error)

I am trying to download a table of daily temperature for the year of 2001 and all Brazilian municipalities in Google Earth Engine Code (GEE). After mapping a Reduce Regions function and flatten to ...
3
votes
1answer
121 views

ReduceRegions not writting to feature properties in GEE

I am trying to apply reduceRegions to extract average precipitation from the TerraClimate dataset (developers.google.com/earth-engine/datasets/catalog/IDAHO_EPSCOR_TERRACLIMATE) within each polygon of ...
0
votes
1answer
74 views

Displaying standalone attribute table as a feature layer [closed]

Using ArcGIS Pro, I have a feature class, which I converted the selected attributes into a standalone attribute table. Having cleared my selection, I want to then know how to convert that table into a ...
1
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0answers
50 views

QGIS Features to polygons

I would like to know if there is any equivalent on QGIS for the ArcGIS function 'Features to Polygons': https://desktop.arcgis.com/en/arcmap/10.3/tools/data-management-toolbox/feature-to-polygon.htm ...
2
votes
2answers
61 views

Are there a list of locations or features with known dimensions?

I'm plotting lines and objects on a map and want to verify scales with real, physical objects on the map. Is there a list of physical features that are known distances? Perhaps like the runway at ...
0
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1answer
30 views

How to delete the existing polygon feature value inside the new polygon so that it borders the new polygon instead of overlapping?

Using arcGIS 10.7 Trying to create a polygon feature inside an existing polygon using the Create feature tool in Edit mode. How do I delete the existing polygon feature value inside the new polygon so ...
0
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2answers
33 views

Transforming featureCollection back to an actual image

I am about to finish my calculations made on the feature that I have extracted from NDVI images. Each image was originally transformed into a list (by the scale of 10) and extracted to a CSV file. One ...
1
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0answers
32 views

Add data from a REGION FeatureCollection to my polygons FeatureCollection [duplicate]

I have generated a FeatureCollection of polygons and calculated the centroid and added it. I now want to pull in some data from FAO/GAUL/2015/level2 dataset with fields such as ADM2_CODE etc. This can ...
1
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1answer
31 views

OpenLayers styling lines between points

I drew a line between two points and would like to change the line styles but currently is not working as expected. Tried to add the style into the features. Am i missing something? var ...
0
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2answers
76 views

Labelling polygon with multiple values from Attribute table

What is a good way to put a list of names in one polygon feature? For example, I'm creating a County Facilities layer. There are cases when you have multiple departments in the same building. I don'...
1
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1answer
513 views

How to select a given feature in a GeoJSON file using Python? [closed]

Scenario: I have a large (120+ MB) .geojson file that represents a bunch of LineStrings features. Here is an example feature selected using json.dumps(geoFile['features'][0]): { "type": "...

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