Questions tagged [proximity]

Use for questions about vector features and their proximity or nearness to other features.

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1answer
16 views

Identifying polygons that lie between two polygons using ArcMap

I am working on a single layer which includes an island constructed of multiple polygons (used to represent territories). I would like to look at dispersal between territories, specifically, how many ...
6
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1answer
141 views

Finding nearest street name from selected point using ArcPy

There are two data layers with house numbers and street. My house numbers are point type, and my street layer with road names is line type. What I want to do in my project is to find 15 meters near ...
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1answer
17 views

Finding distance between point layer and matching polygon layer using ArcGIS Pro

I have two points (GPS photo coordinates) per polygon (area photo is taken). The two points have an identifier that links both to their corresponding polygon, so I already know each polygon will have ...
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1answer
13 views

Choosing tool to add field based on nearest neighbor using ArcMap

Using ArcMap, I have two feature classes. The first is my polygon parcel layer with crop type, irrigation type, owner, etc. The second is my line canal layer, which has a field for our water schedule (...
10
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1answer
265 views

How do I interpret the results from the distance matrix?

In this dataset I have created the green dots represent coyote sightings while the yellow dots represent rabbit sightings. I am trying to determine if coyotes and rabbits are randomly distributed or ...
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0answers
34 views

Find for each point-feature in layer the nearest point in other point-ayer over a network

I'm looking for a solution for following problem: given a point layer A (10.000 points) given a point layer B (15.000 points) given a line layer C, as network (waternetwork) I want to have for each ...
5
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3answers
157 views

Find nearest line feature from point in QGIS

I have a line feature set and point feature set. I want to get the nearest line feature from every point. For this, the line features are converted to point using "Extract Nodes" tool. Then ...
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0answers
9 views

OSRM Nearest health facility to a village

I work in a health research project in rural West Africa. I want to measure distance by road from a village to closest health facility. I use Stata 16. Per now I only have distance "as the crow ...
1
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1answer
60 views

Calculating distance to the closest feature from different layer using Fiel Calculator

I am looking for the distance of the closest point (Layer 1) to my atlas object (Layer 2). I want to use the expression builder. Example: I have a House, which is also the atlas_feature, on 'Layer A'. ...
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0answers
43 views

NNJoin in QGIS does not return any distance

I have two layers, one with ~100,000 points, and another with ~20 polygons. I'm trying to find: a. which polygon a point belongs to b. the distance from the point to that polygon I understand that ...
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1answer
21 views

Calculate Quickest Route Between All Features

I am looking for a way to create a line feature class that is the quickest path (as the bird flies) between all features in a feature class. I feel like there has to be an ArcGIS Tool that can do this,...
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0answers
17 views

Finding x% of closest features to point using Network Analysis of QGIS

I have address points (Z locations), route lines, and polygon shapefiles. I need to find the route lines needed to reach 40% of all Z locations per polygon area. I have created centroids for each ...
3
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1answer
144 views

Transferring attributes to neighbors in point layer using QGIS

My goal is to create a wind map for an area about 300 km² in QGIS. For this i have the data of only one weather station. The idea is to estimate the wind speed by the roughness lenght and the ...
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0answers
71 views

Faster st_is_within_distance for points to lines

I am looking for a fast way to run a st_is_within_distance (or equivalent) in R, to find all the lines (y) within a given distance of each point (x). (This would be an equivalent of ArcGIS's "...
3
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1answer
46 views

Getting closest point-feature of another point-feature

I have two point-shapefiles. For each point-feature in one of those two files I want to identify the closest point-feature from the other file and save the "ID" of this point as attribute. ...
2
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1answer
42 views

When to use spatial regression for the proximity analysis

I am not sure about whether I should use spatial regression for the proximity analysis I am trying to do. I’ll just describe the scenario and goal: People claim that convenience stores lower nearby ...
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0answers
28 views

Does Euclidean distance consider multiple points nearby?

I have a hypothetical setting I am trying to use to better understand Euclidean distance. So of course this example will only work for the purpose of understanding a concept, rather than actually ...
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0answers
22 views

Changing distance units in joined layer in QGIS 3.10

I am performing a Vector analysis using the 'Join attributes by nearest' tool. I am trying to evaluate the distance between a central highway and each vector point in a layer (which each represent ...
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2answers
41 views

Finding Overlapping/Close Points of Same Layer in ArcGIS Pro

I have a dataset of point features with photo attachments of street signs from volunteers through the Survey123 app. The app records their location which ultimately creates the point feature. Part of ...
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1answer
103 views

Using ArcPy to Generate Near Table in memory

I have a point SHP in WGS84 (EPSG 4326) and I am trying to tabulate the distances to the nearest point in meters. I need to do the analysis using ArcPy, but I want to get the results in a Pandas ...
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0answers
40 views

Generating nodes at joining points

I have road network (lines) and points (Address) . With the help of closestSegmentWithContext function, I join points to nearest lines in QGIS. Is there a way to to generate a nodes at every joining ...
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0answers
18 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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0answers
32 views

How to calculate a service area of a facility, while using multiple co-variables?

Problem we would like to solve is finding out what methods are to calculate the most efficient routes in a map with distance/travel time, pop density and facility capacity as co-variables! Perhaps ...
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0answers
30 views

How can I join attributes by nearest, filtering the results by an another attribute present in both tables?

I have the centroid layer of climate polygons and I want to find the closest weather station of the same type of climate. The two layers (the one of centroids and the one of weather stations) contain ...
2
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1answer
41 views

Process to calculate distance from points to line in QGIS [duplicate]

I am trying to calculate the distance between each point(as seen in the picture below) and its nearest line which is a road. I have tried to rasterize the data on all the roads and I end up with the ...
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0answers
24 views

Joining attributes between layers based on proximity of features [duplicate]

In QGIS 3.12 I have a Layer Y that has a specific attribute and my objective is to fill this attribute with information from Layer X regarding the proximity between the features of Layer X and Layer Y....
2
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0answers
49 views

Generating similar random points in QGIS

I have data (Lat, Lon) of 32 buildings, and their plot in QGIS is given below in red dots. Now based on the calculated mean distance (Nearest neighbor analysis) between these points, I want to ...
1
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1answer
138 views

Connecting lines with point in QGIS

I have two shapefiles Blue network yellow locations as shown in the below figure. I want to connect all yellow dots with the blue lines blue as shown in red color in the figure. Is there a way to ...
4
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2answers
198 views

Update points geometry while snapping them to nearest line

I have two tables in the PostGIS database - points and lines. And I want to update points geometry to snap them to line if they lay within a certain distance. By now I managed to create a new table ...
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0answers
24 views

topology: points closer each others + report

I have a point feature class structured like this: CompanyID | PersonalID | Lat | Long | 1 | 1 | ... | ... | 1 | 2 | ... | ... | 1 | 3 | ... | .....
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1answer
21 views

Extracting coordinates of nearest point

Is there a way in QGIS to extract the coordinates of the nearest point on a polygon from an input point layer? I am looking for the coordinates not the distance, as provided by NNJoin.
0
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1answer
18 views

How to get Euclidean Distance to include all input features?

I've run Euclidean distance on a water source dataset. Water is represented as polygons and I run the Euclidean Distance tool in ArcMap. It appears to work great but when I zoom in I notice that some ...
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0answers
43 views

Nearest distance between point and line layers in QGIS-3

I have a line layer with a road network and another point layer. I would like to connect the points to the nearest line in the other layer. I have tried to use the Vector analysis > Distance to ...
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2answers
152 views

Using QGIS 3.12 gdal:proximity doesn't output raster file in output location in PyQGIS standalone application

I'm trying to use the gdal:proximity function from pyQGIS algorithms. below is my code for trying to run the algorithms: def publicgreen_qgis(self, in_fn): params = {'INPUT':in_fn, '...
0
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1answer
29 views

Finding average distance from polygon to multiple points

I am trying to find the average distance from a polygon to multiple points on a map. Specifically from a parcel to "downtown hubs". I have used the "Near" tool to generate a table showing the distance ...
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0answers
39 views

Layer not completely drawing in ArcGIS published service

I am publishing a service and one of my polygon feature layers is not completely drawing when viewing the published data through ArcGIS REST API. All features within this feature class are drawing ...
2
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1answer
166 views

Join/Summary Nearest Neighbors QGIS

I'm looking to spatial join points to their k nearest neighbors, with attributes summarized (mean, sum, sd, etc.). I have looked at Join by Location (Summary) and Nearest Neighbor Analysis but the ...
1
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0answers
68 views

Calculating distance to nearest coastline with ArcMap

I am using ArcMap to calculate the distance from a list of coordinates to the nearest coastline. I downloaded the shapefile of coastlines from https://www.ngdc.noaa.gov/mgg/shorelines/ and converted ...
2
votes
2answers
175 views

Mean value of pixels nearest to point (per image per point of collections) (Earth Engine)

I'm trying to extract the nearest pixel value of an Image Collection. So, for a Feature Collection, I get a time series with the mean value of the nearest pixel. The question here shows how to do it ...
1
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2answers
178 views

Snap a point to a line and get the line ID (using the ArcGIS REST API)

I have an external work order management system in which users create new sidewalk work orders (points). When a user creates a sidewalk work order, a Jython script will invoke a URL that passes the X ...
0
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1answer
36 views

Get distance from point to 10 nearest points in ArcGIS

I've a layer with the location of different sampled ponds and a layer with all the ponds in the region. I want to calculate the mean distance to the 10 nearest ponds in the region for each of the ...
4
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3answers
1k views

R - Find “n” closest points to each point in SpatialPointsDataFrame

I am working with a dataset that is similar to this one: library(raster) library(sf) # Define CRSs crs.latlon <- "+init=epsg:4326" crs.sirgas <- "+init=epsg:5880" # define edges in somewhere ...
2
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0answers
46 views

What is the best way to calculate the accuracy of GPS point measurements in relation to the road network?

I have a vector dataset containing GPS locations/points of different vehicles and a (polygon) road network dataset. Due to the inaccuracy of the GPS receiver, these gps points can deviate up to 10-20 ...
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0answers
24 views

Locating points based on location and attribute difference using ArcMap

I am not sure if this is feasible or not but here is what I am looking to do: I have a point feature class where a certain set of the points all fall within 10-15 feet of another point. Ideally, ...
2
votes
1answer
89 views

Finding points closest to latitude longitude point using PostGIS

Right now I have a data base with PostGIS. Several of the data sets contain different locations at latitude longitude points. I will be doing several queries based at different latitude longitude ...
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0answers
29 views

Python code to determine distance to specific polygon boundary [closed]

I am trying to automate a process to assign location codes to parcels. The method is to measure from the centroid of the parcel polygon to the eastern edge of the section polygon, then measure from ...
1
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2answers
72 views

Spatial Join unique values for closest target feature

I have a polygon shapefile of land plots with their corresponding cadaster number and a point shapefile with a water meters for each lot. What I'm trying to do is to join the cadaster number from the ...
2
votes
1answer
160 views

Would nearest point using Geodesic distance and nearest point using Haversine distance be the same point?

I have a point A and trying to find the nearest point to A in a list of points (B, C, D). I could use knn with haversine metrics and get the nearest point like this: knn = NearestNeighbors(...
1
vote
1answer
104 views

How to convert a point vector layer to raster

I am trying to use QGIS to calculate a proximity map around a set of points. it appears that point can't somehow be converted to raster (well they are converted but the points are not visible after ...
0
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0answers
18 views

Point Distance Tool not licensed errors [duplicate]

I've some problems concerning Point Distance in ArcGIS 10.5. Whenever I try it to open, this tool appeared "require licensed tools".

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