To join the attributes from one spatial data layer to another

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2
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1answer
40 views

Sum line lengths for each grid cell in QGIS

I'm trying to get data from a polyline layer into a grid (I've created this with regular points, points to polylines). I guess at first I have to cut all polyline segments at the grid lines and then I ...
-1
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0answers
14 views

Assigning points to grid using R [on hold]

I'm essentially trying to do the same thing explained at this link: Aggregating points to grid using R I have a household csv survey file with gps points associated with the surveys, and I have ...
1
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1answer
24 views

CRS and Spatial join problem

I try to match two layers. First one is point-type with cities in Europe. Second one is grid layer (polygon) with elevation value. What I want to achieve is to to join the "Z" value from grid layer to ...
1
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2answers
45 views

Joining points to points on the same road

I know there may be a really simple solution to this query but I have been looking for one for ages and have not been successful. I have points that represent mammal sightings on roads, as well as ...
0
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1answer
33 views

How can I fix my spatial join issue?

I am using ArcGIS. I have two different files. The first file is from the United State Census. It is a file consisting of the census tracts for 1990. Each polygon has information that labels its ...
2
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1answer
46 views

Update column/Join in QGIS similar Mapinfo

Looking somewhat similar to UPDATE COLUM option ( for join) MapInfo in QGIS. This exists ?
1
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1answer
24 views

Performing join on simultaneous spatial and attribute criteria in ArcGIS for Desktop in Modelbuilder?

A similar question was posted here, but I have an additional problem that seems to make the answers there unlikely to work. I am interested in performing a spatial join between point feature class A ...
1
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1answer
44 views

How to spatially join several attributes of one layer to a unique one on a second layer

My goal is to link all the attributes of an input layer (that has a UTM CRS projection matrix and point coordinates but no geometries) to the geometries of another layer based on the spatial analysis. ...
0
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0answers
21 views

How to extract data from multi-ring buffers?

I am using ArcGIS with full extensions. I have a Uni project which requires me to extract the towns/cities that lie within buffers of landfill sites. I have managed to extract the total population ...
0
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1answer
23 views

Adjusting ArcMap Model to Create 1000 Iterations of Random Data Files with Spatial Join?

I have created a model that creates a random point data set for a certain area, conducts a spatial join of these points to polygons, calculates the frequency of a certain field in the joined table, ...
0
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1answer
33 views

Adding a column to polygon table with correct corresponding address

I have 2 shapefiles: one with polygons (buildings) and their properties other one is a point address shapefile - it contains points that are inside polygons from the other SHP, but it's still ...
1
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0answers
21 views

ArcGIS 10.2 Model builder Spatial Join user input

I have a model that runs a spatial join and then adds and calculates fields to that joined table output. The model is designed so that a user can change the target features and join features. I have ...
6
votes
2answers
128 views

Spatial Join Yielding NULL values in ArcPy?

I'm writing an automated script to do some data processing of address points. One stage of the process is to retrieve 19 fields of information from various polygon layers that the Address Points are ...
0
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1answer
29 views

ArcGIS 10.2 Modelbuilder Spatial Join is not generating an output

I have a model that runs spatial joins in a lines to points relationship and then adds and calculates fields to that join. The parameters are one to one and intersecting at 1 foot. The search ...
3
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0answers
63 views

How to join specific attributes of two polyline shape files that overlapped but information is stored differently (QGIS)?

I have just started using QGIS (2.12.3) and I need your help. Overall, I have two polyline shape files with the same geometry (the one layer overlaps the other), but the information is stored in a ...
1
vote
1answer
57 views

Spatial Join in Python Field Mapping with Multiple Merge Rules

I'm performing a Spatial Join with a polygon (target) and a point (joinFeature)- which has 5 fields in it that I need to "sum". I have written a Spatial Join and (after many long days) gotten the ...
1
vote
1answer
32 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 ...
1
vote
2answers
45 views

spatial join that works like select by location?

Using ArcGIS 10.2.1 I have two polygon feature classes. The features in each are identical, but they have different tables with no common attribute (long story). In each FC there are overlapping ...
1
vote
1answer
20 views

Counting points on a line or polygon using join: number of points are calculated incorrectly [closed]

I am attempting to count the number of stream crossings within approx. 100m segments of a trail. I used this article to get quite close with join: ...
0
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2answers
25 views

Keeping attribute table when converting from polygon-based feature layer to grid layer

I am trying to transfer (or extract) attribute data from a polygon-feature class to point data. I can do this for a grid file using the Spatial Analyst-Extraction-Extract multi-values to points ...
2
votes
1answer
51 views

Create frequency polygon from overlapping features in another polygon

Mac 10.9.5; QGIS 2.8.4-Wien; history and unioned data, in GDA94, zone 55 here. I have a polygon of fire history with a number of overlapping features. I want to create a new polygon for fire ...
1
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0answers
58 views

Looping spatial join in arcpy - order problems

I developed a python script where the user inputs a polygon shapefile multiple point shapefiles and within the script the polygon shapefile is divided into 1000mx1000m grid cells and the point ...
1
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0answers
42 views

Merging multiple fields with same parcel id yet different attribute values, while keeping all fields?

I am using ArcGIS 10.3 for Desktop. I have a property parcel layer that when Intersected, each parcel is broken up into hectares of different land covers. My question is can this be merged (or ...
0
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0answers
59 views

Spatial Join - Field mapping to delete and rename fields

I have a python script where the user can enter a study area (Polygon shapefile) and multiple point Features of interest (Point shapefiles). The point shapefiles are looped through and joined with ...
1
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1answer
47 views

Spatial join for multiple shapefiles (loop)

I have the following two datasets: polygon shapefile containing administrative boundaries of a City multiple point shapefiles What I want to do is to spatially join the point shapefiles with the ...
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0answers
38 views

geopandas spatial join: how to find problematic row?

I have an sjoin function from geopandas that is behaving erratically: it works on some version of the "points" geodataframe but not others. merged=sjoin(points,polygons, how='left',op='within') ...
1
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1answer
70 views

QGIS: getting NULL values when using “Join Attributes by Location” of lines and polygons

I'm using QGIS 2.12.3-Lyon. I have a polygon layer (~130k square polygons with some small overlaps) and I have imported a road network from OpenStreetMap (via Geofabrik, ~141k road segments) for my ...
2
votes
1answer
38 views

Spatial Join Hangs on Two Specific Shapefiles in QGIS 2.8

I have successfully done spatial joins with QGIS many times. However, with two shapefiles QGIS hangs or never seems to complete. (I’ve let the process run for over two hours.) I’ve tried all the ...
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0answers
34 views

Join Attributes By Location inside QGIS modeler still fails to compute sums

Recently, a question was asked about the spatial join tool, and its failure to calculate the desired data. I ran into the same problem, but none of the solutions that were offered there solved it. ...
1
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1answer
56 views

ArcGIS - Why would spatial join return correct distances but wrong attributes

I am doing spatial joins on points and street (line) features to identify the closest street to each point. However, despite getting appropriate distances returned for each points, closest road, the ...
3
votes
1answer
39 views

Spatial join of raster data in QGIS

How do I perform spatial join of raster data in QGIS? I have raster soil data (tiff), I'd like to join this to an attribute table in excel? I'm not able to view the attribute table either? Is this ...
3
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0answers
28 views

zonal statistics / join with two vector layers [duplicate]

I have a shapefile containing three polygons of river basins with different values. I want to know the average values per country. The country thus contains three river basins. When I use join in ...
7
votes
1answer
144 views

Join by attribute / spatialite with SQL / left outer join in QGIS

I have a layer with polygons (let's call it "woods") that is intersected by "n" line-objects ("roads"). Every road has an unique attribute roadid. I need to add ALL the roadid's (not only the first ...
4
votes
2answers
125 views

One-to-many joins on a feature class to a table

I am using ArcMap 10.2.2 with an Advanced license. I have used ArcMap for other basic analyses, but am fairly new to the program and have only basic coding skills, with no SQL experience outside of ...
2
votes
0answers
70 views

Intersect, Spatial Join?: One Line crossing Multiple Polygons, assigned wrong attribute

I am looking for any possible solutions to a problem I am encountering with ArcGIS. I am using census block groups (CBG) to assign streets an income level value based on their location within the ...
2
votes
1answer
217 views

geopandas spatial join extremely slow

I am using the code below to find a country (and sometimes state) for millions of GPS points. The code currently takes about one second per point, which is incredibly slow. The shapefile is 6 MB. I ...
2
votes
1answer
55 views

geopandas error “minimums more than maximums”

I posted this question on stackoverflow here, but it seems that gis.stackexchange is the more appropriate platform. I am trying to merge two geodataframes in geopandas (want to see which polygon each ...
1
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1answer
21 views

appending country names to route feature class

I have a polyline feature class made up of multiple segments. This feature class overlays a polygon feature class representing the countries through which this polyline is going. For each segment, I ...
2
votes
1answer
75 views

Spatial join for not perfectly overlapping polygons?

I have 2 maps with the district borders of a country and I want to combine their features based on their location on the map but the borders of the districts don't overlap perfectly. I tried to use ...
0
votes
1answer
21 views

Linking datasets for two polygon layers in ArcMap?

I have two polygon shp files that do not have a common ID. I'm trying to link the datasets with a common ID based on spatial location. Is there a tool/process to link features (common ID in the ...
0
votes
1answer
181 views

Fastest way to join many points to many polygons in python

I need to attribute a geographical area (based on shapefile polygons) to 8 million GPS points. There are 405 polygons. I currently have the code below, and a quick extrapolation tells me it will take ...
2
votes
1answer
70 views

How to do spatial join in FME by preferring points with same attribute

First of all, I'm new to FME, but I'll try to be specific with my question. I have two different shapefiles with point features. These points have information on bridges and overpasses etc. but are ...
5
votes
2answers
75 views

Is it possible to merge attributes from lines which are on top of each other?

I was able to merge the different kinds of roads (verharding lijn) with the normal roadmap (Wegen 1.0). The attributes were copied to all the records, but there are empty attributes where the kind of ...
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0answers
38 views

Has “add polygon attributes to points” been removed from QGIS?

I've been using "add polygon attributes to points" in qgis for a while, but hadn't needed it for a while (thanks to Underdark for this); in 2.13.0 master on ubuntu it seems to be missing from the ...
5
votes
1answer
55 views

Merging two polylines (street networks)

I have the following problem: I have two street datasets from completely different sources. I need some attributes from one dataset (red lines) to be joined into the other one (green lines). Until ...
1
vote
1answer
98 views

ArcGIS Spatial Join - “contains part of” match option

I would like to perform a spatial join using a (non-existent) "contains part of" match option. i.e. I want the join to include any and all polygons that overlap, not just touch at the edge. None of ...
0
votes
0answers
15 views

How to join CSV data (based on admin boundary names) to shapefile of aforementioned boundaries in R? [duplicate]

DATA: CSV data, Shapefile Hi all! I'm looking to perform what I've been taught is called a spatial join. After researching this further, it's looking like this operation is most often called a ...
1
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0answers
20 views

Spatial Join with start and endpoints of polylines

My question is concerning spatial joins. Basically, I want to join 2 layers. One of them is are polylines and has two pairs of lat/long, representing the start and the end. id lat_start ...
6
votes
2answers
212 views

How to do a spatial join in PostGIS that returns on the minimum value of point intersecting polygon?

I have a polygon table (buffer) and a point table (dem_points), and I want to do a spatial join on them. I need to join the point with the minimum elevation (dn) to its spatially corresponding ...
0
votes
1answer
22 views

Divide broken line layer in seperate clusters based on location

Building on a earlier asked question on this forum I would like to ask an additional question in getting the task done I asked here: Divide polyline layer in clusters with specific requirements in ...