Questions tagged [select-by-location]

Select features based on their geographic position relative to features in another layer

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27 views

Selecting by location AND attribute using one query

I am using ArcMap 10.8 and ArcGIS Pro 2.7 I have two feature classes: one containing currently uploaded county address points (cad_n) and the other containing updated county address points (d_n). A ...
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37 views

Selecting a line segment with an azimuth value closest to the azimuth value of another line segment in QGIS

I have a road network dataset and a dataset that consists of multiple disconnected lines of varying lengths in QGIS. Most of these lines are (largely) parallel to the road network, but their shape ...
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77 views

Method in QGIS to do a select by radius but ignore “islands”

I am looking for a process in QGIS to run a selection from a given point based of a radius that ignores "islands". For example you may have a body of water which acts as a natural barrier past which I ...
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48 views

How do I select rows in an attribute table of a vector layer grid which are outside of another vector layer?

So what I am working on is accessibility analysis, I want to know how many percent of the population of a country have access to certain health services within a given driving time. For example is it ...
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384 views

Select by location QGIS and PostGIS. Exception: unknown

Are there some limitations in feature number, while making spatial query in QGIS? All my data is in PostGIS format. When testing with a small amount of features, it works perfectly, but with 1032862 ...
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463 views

Command line join attributes by location using OGR

I have two overlapping vector files (polygons and sample) and want to do a spatial join from the command line to extract all features in polygons that intersect with sample. Essentially I want to have ...
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403 views

QGIS assign multiple points data to closest polygon

I've got two layers: point layer polygon layer I need to add the points attributes to the polygon by location (if the point is on top of polygon add the atribute as a new field. I thought of using "...
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834 views

Shapefile From Excel Sheet Crash When Selected Spatialy or By Attributes

Using ArcGIS 10.2, I am receiving an Excel sheet, on a daily basis, which contains 105 columns(Fields) and includes has X and Y values. For whatever reason (which I cannot understand) all data types ...
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21 views

Failure to pick up attributes following use of ArcGIS Pro ModelBuilder: Iterate Feature Classes

I have a folder containing numerous point shapefiles (Species occurrence records) and (in a separate folder) a multipolygon shapefile of small parcels of land. For each species, I need to extract all ...
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19 views

How can I identify points that share similar attribute with polygon features based on the attribute & distance between the two?

For Example; if both the point & polygon features have an ID field, I need to flag the points if they share the same ID as a neighboring polygon & are w/in 2000ft of each other. I have tried ...
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10 views

Summary Within tool not matching Select by Location results

This seems like it should be simple but having trouble. Using ArcGIS Pro 2.4. What I would like to do: count the number of polygons from one layer intersecting polygons in another. In this case, I'm ...
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39 views

Creating automatic sum column in ArcMap

Using ArcGIS 10.3 I have a table with different categories and would like to summarise each of them. I want it to work as well when these data are selected inside a polygon. Below is an example of ...
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71 views

Selecting features enclosed by another layer using QGIS?

I have 2 layers selected layers as shown in the figure below, hotosm_glp_rpads_lines (Layer 1) and LaSoufriere_Imapact_Zones(Layer 2). I want to select all the polylines in layer 1 which is bounded by ...
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31 views

Classifying coordinates on land/on water using QGIS very slow processing issue

I'm very new to QGIS. I have a problem related to the "select by location" tool of QGIS. I have loaded 10 different layers into my map containing data of waters (rivers, canals etc.). Now, I want to ...
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63 views

Selecting by location: Line to Line

I am trying to select line features from an OSM road shapefile layer (Layer 1) based on the features of a line layer (Layer 2). Layer 2 is selected road segments from Layer 1 produced using a routing ...
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1answer
214 views

Earth Engine Cascading selects - redraw/highlight on select

I am trying to create a scenario in Earth Engine where a user has three drop down selects. On each select, the next select will be filtered by spatial intersections of the first select, and the third ...
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75 views

Use selected feature in MXD as selector in python?

I am quite new to ArcPy. However, I want to write a script that: uses an existing SELECTED FEATURE of a feature class in a data frame of an existing MXD (on an SDE Server) for a SELECT BY LOCATION ...
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70 views

How to select trenches only upstream of a station (select by location)

I have a shape (line) that represents the hydromorphology of watercourses and contains several parameters. This morphological study of watercourses has been done on every 100 meters of surface ...
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280 views

'Select by Location' algorithm using Python script in QGIS

Could anyone explain to me how to run the 'select by location' algorithm in a QGIS 3.0 script? I find it really hard to understand the documentation about it. I found a lot of docs about how to write ...
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48 views

Iterate rows in polygon, use result to select by location

I'm not overly familiar with iterators but basically I have a polygon with multiple rows. I want to select each row in that polygon feature class and use the selected polygon in a select by location ...
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39 views

Model Builder - Selections Add Up at the End

I am creating a model so that I can help colleagues visualize the workflow I used on a problem. My task was find all manholes in a specific area that connect to pipes >= 36". Simple enough, I did ...
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70 views

Point data grouping based on location + huge dataset in QGIS

I need community help to solve my puzzle. I have one huge dataset of points that represent places where a set of trucks stopped. Points go to the database if the reported speed of a truck was 0. The ...
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1answer
795 views

QGIS select by location doesn't use selected features only

I'm using QGIS 2.14.3 - Essen (but have also tried 2.18.12 Las Palmas) Using 2.14.3, if I select one feature in a vector layer, and then use [Vector][Research][Select by Location], I have the option ...
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137 views

QGIS 2.14.3 constantly crashing when digitizing

I'm using QGIS 2.14.3 Essen on Linux Mint 17.2 Rafaela. I'm digitizing either into .OGR vector file or a Spatialite database. Same happens with both. I can be digitizing a string, I complete it with ...
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50 views

How to click a line segment when close?

I am looking for help to modify mouse click so that I can click a line segment without having to be directly over it. I have been looking at Leaflet.AlmostOver but have been having difficulty ...
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0answers
458 views

'Selecting by freehand' tool - selection disappears

I have been trying to select some features of my map on QGIS to create the boundaries of a domain, however when I draw a shape using the 'Select by freehand' tool, the selection disappears as soon as ...
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279 views

Summary statistics from feature iterator and select by location - missing selected feature name. Arcmap 10.2

I'm trying to calculate summary statistics for a subset of a point feature, based on selecting by location. I'm using a feature selection iterator to get statistics for each polygon feature in the '...
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250 views

Arcpy Select by Location out of memory

I have multiple lines (lines) intersecting points (centroids) from which I want to extract landuse values and then write the extracted values to the lines as 'land1' and 'land2' values. I need to ...
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131 views

How to write a loop selection by location and export in QGIS?

I would like to be able to make selections in sequence between buffers and surrounding areas. This would lead to areas (polygons) being selected repeatedly by 2 or more buffers and I want to be able ...
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83 views

Finding polygon within polygon using ArcGIS for Desktop?

How do I find two parks (shapefile) that are within a census tract ? If I'm not mistaken you have to use selection by location.. but beyond that quite sure what to do after.
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163 views

ArcMap 10.2.1 issues diffferent SQL than 10.0 for “Select by location”?

I have a large point layer and I'm doing a "Select by Location" to select all points that intersect a specific selected polygon from a polygon table. In ArcMap 10.0 the SQL that was executed ...
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76 views

Broadband coverage GIF image layer needs to be selectable (ArcGIS)

I am working on a project on Arcmap where I have 80,000 co-ordinates of postcodes and a broadband coverage map. I need to know which of the co-ordinates intersect with the coverage map. I have added ...
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26 views

QGIS3.x using processing algorithms outside of python console (when writing a plugin)

For a school assignment I need to write a QGIS plugin. Part of the plugin that i'm writing needs to use the 'select by location' processing tool on a previously created buffer. The codelines that I ...
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1answer
43 views

How to “Select By Location” in ArcGIS Server JavaScript API

Is it possible to perform the equivalent of "select by location" in the ArcGIS Server JavaScript API v4.x? The use-case is "find features in Layer 1 which are within x kilometres of ...
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15 views

Selecting points on surface using ArcScene

I have a 3D surface and tons of points, and I want to only select points on the surface. How can I select these points?
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56 views

QGIS - graphical modeler aka. processing toolbox - update only selected fields

I have two layers: point layer representing some house addresses. polygon layer representing some kind of territory. What I'm trying to do is, create a model where I select the points inside the ...
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72 views

Mongo geoWithin problems reading from collection

I have a data set with geo points. { _id ...other fields... location: { type: "Point", coordinates: [0,0]}} What I have been attempting to do is filter out and delete any documents that ...
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25 views

Using multiple selection queries to calculate fields in ArcMap ModelBuilder

I am trying to calculate two fields based on a combination of select by attribute and select by location in model builder for road center lines. In my current model I have it set up so that I ...
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29 views

Impossible to access to select-layer-by-location result in an ArcGIS Pro script

I'm using ArcGIS Pro 2.5 with basic licence. I'm trying to select some polylines with another set of polylines recursively, if they're close enough. For this purpose, I use Select_layer_by_location ...
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1answer
109 views

Extract by location works improperly in PyQGIS standalone script

I have been trying to extract polygons from one layer that intersect a polygon in another layer, and another extract that is disjointed, and looping this over several files organized by date. When ...
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1answer
136 views

Creating multi-ring buffers around points in a single layer and for each point selecting neighbors within a specified radius in R

I have a CSV file of data on a set of 3000 points (locations) with respective coordinates and a number of attributes. I want to perform a regression analysis that takes cognizance of any spatial ...
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43 views

Find lines not related to any other lines

I have a pipes layer. I need query all dangling pipes, it isn't relationship any other pipes. I have attach image. Is there any method to do this?
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34 views

Using Select by Location in ArcGIS Pro

ArcGIS Pro 2.4.0 (trial version), up to date. Win 10, up to date. I'm new to GIS. I thought my task would be simple as I only have two layers: a shp file with many thousands of census tracts along ...
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86 views

Selecting grid squares (polygons) that intersect with a raster

I have a raster dataset that I have exported a subset from using attribute values (so the extract has areas where there are no pixels). I also have a fishnet grid (polygons) and I want to select the ...
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30 views

Selecting only polygons with certain variable in them using ArcMap?

I have green space polygons for London and also illegal pollution areas in polygons in ArcMap. How would I go about selecting only the green space polygons that have pollution areas in them (so the ...
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1answer
24 views

Selecting polygons from file 1 based on their location within file 2 using ArcMap

I'm working on a project right now where I want to find the census tracts within a particular traffic analysis district. I may just be blanking on it, but I'm working with two files. The first has ...
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79 views

Using output layer names from Select By Location

This is kind of from memory as I cannot access my specific code… I am using 10.3.1 and this will be run inside ArcMap. Overall goal: Find which layers in my active dataframe intersect a specific ...
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3answers
396 views

Select multiple rasters from location

I have a lot of rasters (almost 4000) wich are representing individual glaciers in the Alps. I would like to select only the rasters located within the french border. As I have no information in the ...
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72 views

Selecting Points by their Spatial Location to an Attribute of a Layer

I have a large point layer of addresses within a district. Each address point has a field called "Street External Key [SEK]" which is tied (meaning identical to) the corresponding "Street External Key ...
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36 views

Selecting features from another shapefile using ArcPy cursors and SelectLayerByLocation?

Having the code below im trying to select all the table features from an school_enroll.shp that are within each bigger zones from the hs_bndy.shpwhen i use the arcpy.SelectLayerByLocation_management ...