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

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34 views

Removing points outside of standard distance circle in ArcGIS for Desktop?

I have a feature class of companies where each may have multiple locations (for example, company A may have a cluster of points associated with it). For each company, I used the Standard Distance tool ...
0
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0answers
13 views

create individual buffers from vector points and then batch convert those buffers to rasters? [on hold]

following on from my previous question draw concentric circles that correspond to the free space loss formula I now want to perform this for a large amount of points. I tried using the modeller in ...
0
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1answer
11 views

XY to line tool does not work [closed]

Can someone help me out why the above mentioned tool doesnt work no matter what way i run it. I have attached my excel table. When I save the output file in geodatabase i get error 9999999 saying that ...
0
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1answer
45 views

Setting Method Parameters for ArcGIS Generating Near Table tool?

I input firms' coordinates in the arcgis and want to calculate the distance of firms to the nearest polyline feature (roads). I am having a problem grasping the unit of near_dist value. All of them ...
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1answer
39 views

Selecting inputs within groups - arcpy

I need help with some python in selecting correct input and near feature classes in Near Table analysis. The project aim is to run Near Table Analysis (distance) on point locations collected at time ...
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0answers
32 views

Optimizing placement of several points enclosed by polygon from certain features?

I wish to find a way to optimize the placement of 5 points which are enclosed by a polygon. The optimization should be in a way that there is a minimum distance between the 5 points. 300 meters ...
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1answer
61 views

Calculating distances using Python?

I have a shapefile with lat long information of various properties in the attribute. I have to calculate distances from each property to the many amenities such as schools, hospitals, bus stops, city ...
2
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1answer
59 views

How to find near polygons

I have some polygons with attributes (in my case, some polygons have health establishments) and others without attributes (without health establishments). Is there a function that I can use in order ...
0
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1answer
33 views

How to calculate nearest point to a linestring in PostGIS?

I'm following this question to calculate POI nearest a road(linestring). I'm able to calculate nearest points in the linestring but I'm not able to find the distance from the POI to nearest point(...
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2answers
74 views

ArcGIS: table statistics range, method?

I have the following table with distance values (NEAR_DIST) after using the "Near" tool in ArcGIS: I am looking for a method of getting the following statistical information/statement, for example: ...
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0answers
19 views

Auto fill fishnet labels attribute table?

We are working on creating a DEM on a certain area and we created a fishnet on a certain area with the labels ( dots ) now we have to fill the attribute table of these labels by the nearist contour ...
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0answers
22 views

Generate Near Table equivalent using a cost surface

I'm using ArcGIS 10.3 to calculate the distance from every point in a feature layer (scientific study sites) to the nearest 2 points in a different feature layer (sites infected with a waterborne ...
1
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1answer
73 views

Select points based on value and proximity

I have a set of points in a table, each has a value between 1 and 100. How could I reduce this to the point with the highest value within a radius distance X. So that no point is ever closer than X ...
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0answers
38 views

For every point type A, distance to nearest polygon of type A?

I should calculate the short distance between points and polygons of the same type. I have more than 2000 points of 60 different types. And shapefile with 60 polygons of the different species. The ...
1
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0answers
13 views

max sum within a 200mt radius

I have a SpatialPointData Frame in R. Each point represents lat long and InsuredValue amount. I would like to find the maximum sum of insured value in a radius of 200 mt. How I can do in R
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0answers
28 views

PostGIS Nearest Neighbor query performance - can it be quicker?

I want to canvas the community to see if my nearest neighbor query can be optimized at all. I am happy with my current results, but I'm always up for improving. I have 2 tables, lakes and towns. I ...
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2answers
60 views

Average Nearest Neighbor for X points instead of 1 point

Is there a tool similar to the Average Nearest Neighbor tool where instead of calculating the average for the closest point it calculates the average for the closest X points?
2
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1answer
47 views

Nearest neighbors

I have a point shapefile overlayed over a grid-based polygon shapefile. I would like to select the nearest neighbor grid cells of a given grid cell that contains any of the given point(s). So let's ...
1
vote
1answer
41 views

Calculate distance in km from point to polygon (given in lat/long) using ArcGIS?

I have two datasets, one of polygons and the other of points, both spread across the United States. Both have decimal degree coordinates in WGS 1984. I want to determine the distance from each polygon ...
0
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0answers
22 views

Identify adjacent and no-adjacent polygons between multiple shapefiles using R?

My spatial data are recorded multiple years, providing one polygon for a year. (Polygon is derived from raster data, so I can use rasters instead if it will be easier to run my calculations). I ...
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1answer
28 views

Proximity filter

The aim of what I'm currently messing around: Creating a distance buffer around points in a SpatialPointsDataFrame If the value a this point is > 0, always keep it If the value a this point is = 0 ...
2
votes
1answer
55 views

Why do “stripes” appear on raster?

I am reprojecting a SRTM 3 arc-second raster file from WGS84 geographic coordinate system, to projected coordinate system which is using Azimuthal Equidistant projection: gdalwarp -s_srs EPSG:4326 -...
1
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1answer
41 views

Snap or Move a Point to its closest attribute matching line ArcMap

I have a point feature I want to snap or move to its closes line feature. Now this is easily accomplished with the Near tool. However I want the Point with its unique name attribute only to move or ...
1
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1answer
37 views

How to determine the closest feature to my points?

I am doing a research on transportation for motorcycles. For each trips, I have the origin points and the final destination coordinate points. I also have another landuse layer with my points of ...
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0answers
42 views

Strava Activity / Route Grouping

I'm an avid cyclist and want to reverse-engineer how Strava groups bike riders together. Here is their method to determine if cyclists are riding together (they use time and lat/lon of a ride): http:...
0
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0answers
29 views

Near does not provide outputs

I have a layer of lines that build a network. I would like to find which one of these lines is the closest to a certain point, defined in another layer. I was trying to use the "Near" tool giving as ...
0
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2answers
41 views

Looking for the “inverse” of the NEAR tool

To calculate wind fetch over water I need to create a point on the shoreline and then calculate the distance to to other shorelines all directions (0 - 360 deg). The shortest distance to another land ...
1
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3answers
85 views

ArcGIS - Near By Group

I have two polyline layers with corresponding attributes. Each layer has 100,000+ rows. I need to calculate the distance between the corresponding features from each layer. E.g. Layer 1: FID | ...
3
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1answer
36 views

Is there an Equivalent to the Near tool for Network Analyst?

I want to do a process where for each street segment, the network distance from the nearest point in a set of point features is calculated. The result is that when you click on a street segment using ...
1
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1answer
49 views

Near analysis for nearest feature in a distinct angle

I want to calculate the nearest distance from a point feature to a line feature in a distinct angle. When using the Near analysis tool in ArcGIS I get the nearest distance in a angle where the ...
1
vote
1answer
36 views

Point Distances to many buffer zones

Here is my problem: I have 72 points, and each one of those points falls within multiple 1,000 foot buffers zones. I am trying to find out the distance from the point that falls within a buffer to ...
3
votes
2answers
36 views

Reduce frequency of vector points based on attribute or spacing

I have a point shapefile with 5000+ points. The points represent centroids of a flood model mesh output and I want to display the flow direction attribute in the form of an "arrow" point style. I ...
0
votes
1answer
53 views

Nearest Neighbour analysis between points in 2 tables utilizing with distances set along specific polyline roads

I'm trying to do a Nearest Neighbor analysis between points in 2 tables utilizing with distances set along specific polyline road files I have. I am attempting to determine the most cost effective way ...
1
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1answer
37 views

Get coordinates of Near Tool output

I have a polygon layer and a polyline layer. I got the centroids of the polygon layer and used the Near Tool to find the distance from the closest point from the centroids to the polyline layer. One ...
3
votes
1answer
127 views

Nearest distance between point layer and line layer, QGIS

I have two layers , line and point layer. I need to make line layer which connect all points to nearest line features? Is someone made a plugin for qgis? This is very important tool which missing in ...
1
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1answer
36 views

Keep “no data” tiles as “no data” w/ proximity (raster distance) operation

Working in QGIS 2.8.1 Wien. I have a raster file with three classes: "No data" for tiles outside of the country of interest's bounds "0" for tiles that correspond to roads "1" for all other tiles. ...
6
votes
1answer
141 views

How to group 10k points into closest pairs?

I was first faced with a problem of grouping 1000 pairs into unique pairs to minimise the total distance - since this was a small number I solved it using linear optimisation: Part 1 - Basic/Naive ...
0
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0answers
41 views

Using Near Feature Tool with Conditions

I am using near feature tool in ArcGIS 10.1. However, I need to add another condition to it (not only the nearest). The feature (point) that i am looking for, is the nearest (point) and also doesnot ...
1
vote
1answer
41 views

Reclassify a raster based on proximity to other cells in the same raster

Using Arc 10.2.2 with the Spatial Analyst extension, I have a single band, signed integer, 8-bit raster. I need to reclassify cells within that raster based on their Euclidean distance to other cells ...
3
votes
1answer
129 views

GeoSpatial queries and indexes in memory

I am currently using Spark/Scala to process some data, and I am at the point that I need to run ~3M of geospatial queries. One common solution would be using MongoDB or PostGIS (or Magellan for Spark ...
1
vote
1answer
87 views

Finding distance to closest road (polygon to line) in ArcGIS for Desktop?

For my project I need to find the distance to the nearest road from forest polygons. I'm trying to do a weighted overlay analysis (eventually) for a habitat selection project so I think I need to end ...
3
votes
2answers
65 views

Knowing if there is correlation between roads and observations in ArcMap?

I am using ArcMap 10.3.1. I am trying to find out whether some observations have been made randomly throughout a landscape, or they are biased towards the location of roads and paths. I have a ...
4
votes
2answers
115 views

Least Cost Path Distance to nearest polygon

I have multiple polygons (destinations) and an elevation raster. For each raster cell in my study area, I need to calculate the distance to the nearest destination polygon. If I use the 'as crow flies'...
7
votes
2answers
130 views

Creating a point on edge of closest polygon

My project is looking at a grid in the ocean. I want to capture each ocean point's distance to the nearest coastline as a weight, and then use buffer to capture the sum of nightlight data within a 1 ...
0
votes
2answers
37 views

Points proximity to polygons in ArcGIS for Desktop?

I have a point feature class with 1725 records (spread out over NYC) and a polygon feature class with 13 records (also spread out over NYC). What tools or processes can I use to figure out what ...
2
votes
2answers
132 views

Average value of polygons within a set distance from a point

I have two vector layers: one polygon and one point layer. The polygon layer has a value from 1 to 10. I am trying to find the average value for all polygons within or partly within a 1-mile radius of ...
0
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1answer
37 views

Snapping point to point nearest to it in ArcGIS for Desktop?

I am using ArcGIS 10.3 for Desktop. I have 2 point features centroid and station. I want to snap all the points of centroid to the nearest point in station such that centroid is only snapped with ...
0
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1answer
36 views

Using Generate Near Table and keep the ID attributes

I try to use near table between two datasets to calculate the nearest distance. The original data is as the right one, and the near table generated is as the left one. The problem is the attribute of "...
0
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1answer
69 views

Using Near (proximity) tool in ArcGIS for Desktop?

I've tried changing GCS and PCS multiple ways but can't seem to figure out how to get the Near (from Proximity tools) to output the Near_DIST in feet. All it outputs is what looks like decimal degrees....
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0answers
16 views

How to get feature ID correctly in Near table?

I have generated a near table using ArcToolbox, and there are 50 points in two datasets. The feature ID for input and near are quite bigger than normal, as the left one in the enclosed picture. I have ...