To join the attributes from one spatial data layer to another

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Spatial join point data to polygon shapefile and count a variable

I would like to perform a spatial join from point data to a polygon shapefile. In the point data attribute table there is a column called {quality} and I would like to count each category from the ...
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2answers
96 views

QGIS equivalent for ArcMap join for purpose of distances from points to polygon?

It is relatively easy to calculate distances from points to a polygon in ArcMap by doing a join and selecting the option for creating a field containing the minimum distance information. i.e. it ...
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40 views

Labels based on spatial location

Here is what I would like to do. I have a polygon feature class called Subdivisions and a point feature class called Inspection. If I label all the Subdivisions my map becomes too congested. I only ...
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2answers
69 views

Populate cross street name at intersections

Just a follow up of an older post seen here: Python script/Model to populate cross street names at intersections I need to create a shapefile of Road segments with a "To_Road/s" and "From_Road/s" as ...
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1answer
74 views

Dissolve Polygons using R / join specific polygons

I have data in shapefile format :: UK_boundaries I am new to R and Spatial data as well, I am trying to join some areas to be as one area no line(s) between them. Based on my search I understand ...
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29 views

Join attribute tables based on both location and attribute value

I'm using ArcGIS 10.2.2, basic licence. I have two polygon layers, with habitat type as an attribute. layerB is a copy of layerA, but each habitat has a 25m buffer and has then been dissolved ...
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45 views

How to avoid 'join features by location' for polygon to polygon creating extra areas

I am trying to work out which large polygons contain smaller ones within them in QGIS. I have a set of smaller features already defined (dark green below). However, for those smaller areas which sit ...
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181 views

Extremely slow processing time to map lat/lon data onto census shapefile with ArcPy?

I am a newcomer to ArcGIS and Python so I would greatly appreciate any and all input on this issue. What I am trying to do is very simple: map 400K business locations using lat/lon coordinates onto a ...
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1answer
39 views

Join traffic data (point) to a road network (line) - Section between two roads - ArcGIS

I am trying to analyze the vehicle traffic in Melbourne's (AUS) road network. I have two files: the traffic data (point data for a given latitude and longitude with the average hourly traffic between ...
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1answer
72 views

PostGIS multiple conditional statement on spatial join

I want to make a multiple conditioned spatial query in PostGIS 2.0/PostgreSQL 9.3., OS Windows 7. There are 2 tables, cadastre (Polygon) and roads (Linestring). Query: Select the sum (one number) of ...
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20 views

Iterators in ModelBuilder?

I want to iterate over data for every state and do a spatial join against a set of coords. I've created a model to do this using a Feature Class Iterator. Unfortunately, the iterator is only running ...
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3answers
839 views

More Efficient Spatial join in Python without QGIS, ArcGIS, PostGIS, etc

I'm attempting to do a spatial join much like the example here: Is there a python option to "join attributes by location"?. However, that approach seems really inefficient / slow. Even ...
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60 views

Spatial join 2 polylines without common attribute

I need to spatially join 2 polylines, but the problem is that the tables have nothing in common. Also, one of the tables is 4 times as big as the other one. Essentially, what is need is to combine the ...
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1answer
124 views

Qgis Spatial Join: problem with a column!

I run the function "Join attributes by location" in Qgis 2.2 between a point vector layer and a polygon vector layer. When I open the resulting table of contents of point layer there is a column of ...
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1answer
34 views

Arcgis -Spatial-join - recount lines which are crossing a rastercell multiple times

I am performing a Spatial Join in ArcGIS. My Question is: Is there any possibility where i can recount a line that crosses a square multiple times. With the normal way of the Spatial Join i get a ...
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41 views

QGIS join by location not returning for features

I have eight contours/features in one shapefile (contour.shp) that i want to find the number of population within each contour, this is in another shp. I am using join attributes by location to do ...
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564 views

ArcGIS Spatial Join Options Missing

The ArcGIS SpatialJoin online help page has a long list of match_options when joining data spatially, including HAVE_THEIR_CENTER_IN. However running the arcpy.SpatialJoin_analysis tool in Python ...
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1answer
166 views

Is there a limit to the amount of data in a spatial join in QGIS?

I am using Quantum GIS and trying to spatially join a point grid with polygons that are overlapping. If I get the sum of intersecting features, then I can get a good raster value. Well, every time I ...
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23 views

Join polygons by plurality overlap

I'm trying to join two layers-- One is census tracts in Michigan; The other is school districts. Because there is no nesting in either direction (districts in multiple tracts and vice versa), I'm ...
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1answer
74 views

Can anybody help me with Spatial Join in ArcGIS 10? [closed]

I have a doubt, I do not find what's happening. Screenshot: Using the Join (Join data from another layer based on spatial location) I have done an Spatial Join by location, and it is said that the ...
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14 views

about spatial joining and getting area of attribute from each subgrid [duplicate]

I have grids of 3 x 3 sq km, i.e., 9 sq kms which I want to divide into 4 subgrids. I have already done so. I neach grid of 9 sq kms, I have digitised land cover types from Google Earth and so in the ...
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45 views

Tagging polygons within larger polygons (spatial join)

another QGIS newbie here. I have a number of smaller polygons which perfectly aggregate to a larger polygon. I want to "tag" the smaller polygons with the ID of the larger polygon they make up. ...
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491 views

Spatial join to kernel density / kernel density with polygon/point output in Arc

I'm looking for a way to join polygons to a density function for some other feature of interest. Current workflow make density raster from feature set of interest, using point/line/kernel density ...
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1answer
55 views

Spatial and Non Spatial join

I have a shapefile with a number of weed control blocks as polygons. They each have a unique block id number. I am trying to join a non spatial csv file which has multiple entries for each block over ...
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3answers
66 views

Is there a way to snap 2 lines together from 2 shapefiles?

I am currently having 2 shapefiles of a roadnetwork. One of them has the best network (lines intersecting correctly etc.) and the other has some attribute info I want. I have no similar attributes to ...
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48 views

How can I join a buffer layer to the layer it was created from?

I have two relevant layers for this problem: Real estate parcels (point data) Multiple ring buffer layer - contains multiple buffer rings around each particular real estate parcel. (0.5, 1, 1.5, ...
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727 views

How to select the nearest lines to a point layer?

I am a beginner with GIS software and I'm working on QGIS. I have a problem joining the spatial layers. I have a layer with objects in one city and another layer with the streets. I need to attach ...
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2answers
197 views

Join CSV file to shapefile

I wanted to join a CSV file to a shapefile. When I identified a field to facilitate the join, e.g., map <- spChFIDs(map, as.character(map$ID)) it returned Error in spChFIDs(SP, x) : ...
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1answer
66 views

Cross information in ArcGIS for Desktop?

I'm a total amateur at ArcGIS for Desktop, this is the first time I use it for real. The thing is I have several shapefiles with information about: Schools in my city (elementary, middle and high ...
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2answers
72 views

QGIS calculates main soil type of polygons from another polygon layer

I've been working with qgis for a while but somehow I never fiured this out, so I thought it's time to ask. I have 2 shapefiles. a polygon layer from nearby fields (SHAPE1 (the red outlines)) a ...
2
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1answer
78 views

Join line to multiple points

I took some ASCII files and created points with attributes. I am trying to join the line features to these but a simple join function will only take the one that is closest. Is there a way to perhaps ...
2
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1answer
38 views

fit point with raster data figure out those points belong to, and add column and row to represent it in ArcGIS 10.2.2

I have an X-Y point data file, with which has latitude and longitude. I'd like to be fit it with the raster data, then add column and row data on the X-Y point data file. first i created the attribute ...
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57 views

Is there a faster alternative to arcpy spatial join?

I am wondering if there is a more efficient method than using arcpy spatial join in python. I am currently using intersect and closest methods (including a near distance field) so would need ...
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108 views

Alternative way to find intersection between two polygon feature classes

I have been working on making a script to find intersection between two polygon ArcGIS feature classes. I can successfully do this in arcpy instances using spatial join or using search cursors on the ...
2
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1answer
89 views

ArcMap many-to-many join

I'm working in ArcMap 10 and can move around in R, though am not an expert. I have a shp file and an xlsx file. The shp file is 20,221 rows and includes a field GID (grid ID) which is not unique ...
2
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1answer
54 views

Join only if one line line intersects buffer. Do not if two

I've got a road network (line features) and a trip of GPS-Points. I want to join attributes from the road network to every point. So for each point i create a buffer. If the buffer intersects with a ...
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72 views

Spatial join with snapping

is there a tool in QGIS which is able to perform a spatial join with the possibility of define a snapping radius? For better understanding: I have 2 point shapes with attributes I need to join by ...
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2answers
81 views

spatial join based on field

it's my first time that I'm posting here and I hope, that somebody can help me. I already tried to find the solution for my problem in any of the previous answers for similar problems, but none of it ...
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1answer
66 views

Is it possible to join points to a polygon in MapInfo Professional v10.0?

This is what I have... ... and I would like to assign the points to the polygons that they belong to. In ArcGIS this is accomplished fairly easy through using Spatial Join, but I have no clue how ...
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21 views

Talend Open Studio Spatial

I'm using the spatial extension for Talend (Ex-TOS SDI) and i'm experiencing a blocking issue. I'm trying to make what ESRI call a Spatial Join and I can't find a proper solution to do that ( ...
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2answers
244 views

Spatial join versus classical join

What are the main differences between a spatial join and a classical database join such as an equi (inner) join?
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100 views

Spatial join without operation on the variable of interest

I have a simple problem: I've got to spatially join records of an epidemic in forests to some plot coordinates I have gathered. Problem is, I cannot obtain the records for each year on each plot, I ...
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94 views

Spatially join points to polygons in ArcGIS Desktop? [duplicate]

I am trying to join a point feature class to a gridded polygon feature class in arcGIS so that all the points are matched to the grid cell that they fall within. I would like to end up with an ...
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2answers
512 views

Spatially join polygons (target) to polylines (join) on longest intersecting polyline

I am curious if I can, without having to write a python or an ArcObjects script, create a spatial join that will result in a polygon feature class containing the attributes of the LONGEST intersecting ...
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1answer
71 views

Extract polygon attributes from covering polygon with highest area

I have a fishnet grid (polygon layer) and another polygon layer containing some hexagons. I would like for each square polygon in the fishnet layer that covers a hexagon (even a tiny edge of it) to ...
0
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1answer
141 views

Using Spatial join tool returning “Count” values in Model Builder in ArcGIS10

I want to replicate the manual Spatial join (R-click Join) using 'count' in Model Builder. I have 2 datasets: Historic Road Traffic Collisions (RTC) locations - Point feature (gdb) - 3,398 rows ...
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1answer
35 views

How many A features that fall both in the B polygons and C polygons are for each C polygon?

I have this apparently complex problem for solving in ArcGIS: Practically, I need to get the number of all yellow polygons that fall within both the green polygons and the red polygons. I need this ...
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1answer
36 views

Joining rainfall data to point features using ArcPy?

I have 180 point feature classes with rainfall totals. Each feature class represents one days rainfall for a region and has around 36K points (think of each point as a weather station in the region). ...
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92 views

Spatial Join Points and Polygons

Hoping someone can help me out. I am trying to create a grid road map with an index table for street look up. I am using this tutorial by ESRI: ...
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3answers
705 views

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

I have two point layers and want to perform a spatial join on nearest distance. Normally it is easy with ArcMap. But now I have a restricting condition on the spatial join. The restriction only ...