To join the attributes from one spatial data layer to another

learn more… | top users | synonyms

0
votes
0answers
18 views

Comparing multiple point datasets to polygon dataset?

I have multiple point datasets indicating presence absence and i want to compare them all to a polygon dataset to calculate cumulative score for the polygon i.e. presence of points in 2 point datasets ...
0
votes
0answers
21 views

Excluding numeric data that are null (0) when conducting spatial join for mean value?

I am working on household income data as point shapefile. And for some reason, I have to modify points to polygons (I already got polygon shapefile) Now, I am trying to conduct spatial join to get ...
3
votes
1answer
52 views

Spatial Join with aspatial conditions

I'm using ArcGIS 10.3 for Desktop. I have two point datasets: The first point file contains bus delay events (e.g., due to traffic, signal delay, passenger on/offs etc.) along a number of routes ...
0
votes
1answer
31 views

Joining/Merging Shapefiles?

I have a shapefile of a water main and I want to find specifics about it by adding other shapefiles to it. For example I have a shapefile of the roads and of waterways; I want to identify where both ...
-1
votes
0answers
24 views

Trying to join a column from one table to another using python [duplicate]

So I have two tables, one has county polygons, the other has well Points. I am trying to first calculate the total numbers of wells that fall into that county, and update the county table with the ...
2
votes
1answer
35 views

Conflating two road networks

I have two line feature classes representing the same roads. Their geometries are only crudely similar, while their attributes are totally different. I am trying to add the attributes of one feature ...
1
vote
1answer
26 views

Writing point feature classes fields to polygon feature classes field in ArcGIS?

I have one database and two feature classes. One of feature class is polygon other is point featured. I want to write points names to polygon attribute table with commas which are intersects. my ...
-2
votes
0answers
50 views

Spatial join Python script in ArcGIS 10.2.2 [on hold]

I tried to set up a loop python script for closest spatial join. However, I failed with empty fields (they have data in original shapefile) after the spatial join geoprocessing without looping. I ...
1
vote
1answer
42 views

Split multiple attributes from a big polygon to smaller ones

I am looking for a sort of spatial (un)join function. Let's say I have 2 tables, both with a large number of polygons. The first one has a pop/polygon column in his attribute table. The 2nd one has ...
1
vote
1answer
51 views

How to calculate the area of polygon features within another polygon feature layer

As shown below, I would like to calculate the percentage of each red feature (landscape zones) taken up by a green feature (forest zone). So I need the summed percentage of forest zone for each ...
0
votes
1answer
27 views

Attempting to “merge” 3 polygon layers together, not sure if merge is correct

I have three separate polygon layers. Some of the sections in the different layers overlap. I want to "merge" all three layers together and create one layer that is representative of the entire area ...
1
vote
3answers
38 views

arcpy field mapping for a spatial join: keep only specific columns

I want to perform a spatial join to find the join point (a node in the code below) that is closest to a target point (a consumer in the code below). In the result, I only need certain attributes from ...
1
vote
0answers
20 views

spatial join on selected features?

I am working with a set of housing data and I am trying to combine a set of apartments into a single point. I was wondering if it would be possible to select only the apartments I want to join and ...
0
votes
0answers
29 views

Spatial Join returning Null values

I've seen a few posts about this but unfortunately none of the fixes have worked so far. I'm trying to do a spatial join between a grid (polygon) and set of points in the UK. I'm interested in 1 ...
0
votes
0answers
34 views

Spatial join with concatenation of results

I've two polygon layers which I would make a spatial join. The objective is to transport a specific code from layer A (Municipality) to layer B (Issues) using like a concatenate function, in this way ...
2
votes
0answers
42 views

problem using qgis spatial join in a python script or modeler : no results [closed]

I'm trying to create polygons from points layers. Each layer contains one point to avoid troubles due to superposition of polygons. I detailed the context here : How can I add output vector to a list ...
1
vote
1answer
67 views

ArcGIS - how to join attributes of overlapping polygons

Given two tables each with unique attribute sets, how do I merge the attributes of one layer onto the other, or create a new layer containing the attributes from both? The image shows my two layers: ...
4
votes
1answer
100 views

Join / merge lines that touch and intersect in QGIS

I have a large dataset consisting of lines/polylines where I would like to join/merge the lines that touch / intersect. Each line has an individual ID and there are no common attributes I can use for ...
0
votes
1answer
74 views

Spatial Joining in QGIS?

I'm new to QGIS and I'd like to know if exist in QGIS the equivalent command for "spatial join" of ArcGIS. I have tried with "join attributes by location" but seems to be impossible setting the match ...
1
vote
0answers
39 views

spatial join field mapping Arcpy, change merge rule

I have a line feature class which represents a stream network. At a confluence of two river segments, I'm joining the stream segments to the point of intersection via spatial join (one to one join). I ...
1
vote
1answer
43 views

Arcpy Spatial Join Fails: Field is Not Nullable

We are working to perform a spatial join of a very large point .shp of voters (target_features) with another of incidents (join_features). arcpy.SpatialJoin_analysis(target_features, join_features, ...
0
votes
1answer
32 views

Consolidating many-to-one overlapping polygon feature values into another polygon attribute using ArcGIS for Desktop?

I have a situation similar to the one here: Spatial join - many to one however the desired end product is a dissolved/aggregated feature that collects up all the values it was joined to. For example ...
1
vote
0answers
27 views

Joining polygons to points when the points fall in the intersection of polygons. QGIS

I am using QGIS. I am hoping to join a set of geocoded points to polygons in such a way that the new snapefile will be points that have a new field which lists the attributes of the polygon it lies in ...
2
votes
2answers
35 views

Performing spatial join on existing feature class?

I have feature classes containing points (Events) and polygons (Sectors). I want to add a new field to the Events FC to store a field from the Sectors FC. The Events FC would be the Target Features ...
0
votes
0answers
32 views

How to do a Python / Fiona / Shapely equivalen to an ESRI ArcPy SpatialJoin?

I'm a GIS noob, but I am trying to learn as quickly as I can. Please bear with me. How can I identify what structures from one layer are WITHIN in some body of water in another layer? My problem ...
1
vote
0answers
23 views

Moving one polygon layers data to another polygon layer based on distance

I'm trying to set variable shape polygons to a hexagon grid. I want to do something like a spatial join, but without merging data as in "One_to_one", and only having one polygon fill one hexagon ...
0
votes
1answer
54 views

How to do a Spatial Join after opening a GDB file with Fiona?

After I successfully open up an ESRI GDB file/folder with Fiona, what open-source Python package should I use to do a spatial join? I was told Shapely is not the appropriate package for this. I am ...
1
vote
0answers
40 views

Spatial AND temporal join between two point data sets

I was hoping I could get some pointers in how to approach this issue, which is tricky version of a spatial join. I have been searching and I can't find a particular solution to what I need. I have ...
2
votes
0answers
49 views

Update Join Attributes by Location

I have a shapefile with points, and a shapefile with polygons. I want to sum the attribute value of all points that are contained in a polygon, and I'd like to do this for each polygon in my dataset. ...
1
vote
1answer
72 views

Postgis spatial join performance (point on area)

I need to update a single attribute of a large table of point data with a result of a spatial join (point on area operation) on a polygon table. I'm using the below query but wondering if this is the ...
0
votes
1answer
37 views

Assign similar ID to points inside a polygon

I have 3 input datasets of points. What I'm trying to do is to assign a common ID code to the points that are close to each other (no specific distance). I'm using a ModelBuilder to achieve this : ...
2
votes
1answer
84 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
vote
1answer
26 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
vote
2answers
54 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
votes
1answer
39 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
votes
1answer
64 views

Update column/Join in QGIS similar Mapinfo

Looking somewhat similar to UPDATE COLUM option ( for join) MapInfo in QGIS. This exists ?
1
vote
1answer
30 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
vote
1answer
52 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
votes
0answers
30 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
votes
1answer
26 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
votes
1answer
38 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
vote
0answers
25 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
145 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
votes
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
votes
0answers
74 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
86 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
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 ...
1
vote
2answers
63 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
23 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: http://support.esri.com/cn/knowledgebase/...
0
votes
2answers
28 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 ...