To join the attributes from one spatial data layer to another

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60 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 ...
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1answer
80 views

Join Attributes by Location: .mdb and shapefile in QGIS

I can join attributes by location in QGIS using 2 shapefiles. However, I do not know how to do the join when one of my files is in a .mdb format while the other is a shapefile.
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215 views

Counting unique occurrences during Spatial Join?

I have a point shapefile (points.shp) with fields [owner], [name], etc.. [owner] and [name] are both of type string. The owner contains a single string, the unique owner. Name contains a list of ...
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73 views

How to maintain Shape_Length field afer Spatial Join of Point to Polyline feature classes?

I need to get for each point the length of the line that joining to the point. How to maintain the "Shape_Length" field of polylines when I'm Spatially Joining point to lines feature classes ? When ...
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495 views

How to spatially join polygon fields onto a point layer in QGIS?

I have gridded depth points in CSV format that I'm trying to add other map data to, in additional columns. I've tried joining fields, hoping that I could link the Shapefile data to the csv, but when I ...
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2answers
250 views

How to Spatial Join centroids of parcels to point data and get the distance

I'm currently using ArcMap 10.1 (basic license). I have a LSOA shape file of Camden borough. From there I added 2 extra fields within the attribute table, X and Y. I then calculated the 2 extra fields ...
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249 views

Simple Spatial Join of Point Feature to Polygon Target Feature Not So Simple (Source Files Included)

I have what should be a simple task to perform: join ~47K census blocks from the PL redistricting files with pop and racial data joined to Chicago Public Schools High School boundaries to get an ...
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2answers
392 views

How join attributes for point feature from nearest points in road network

I have two layers: 'linear' - road network and 'point' - points in each linear features intersections. Point layer have in attribute table name for each point features: A,B,C,D,E,F, etc. How add in ...
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151 views

Joining features based on location and attribute at the same time

I have a task of assigning data from database that I represent as point layer, and containing information about characteristics of soils through the world, and also soil type. I also have polygon ...
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494 views

spatial join by attribute match from shapefile

i require to spatial join the shapefile having attribute by ie selecting by attribute which remains same for the target and join feature and get the output as per attribute selected i want to prepare ...
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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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92 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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52 views

Help with “Combine” tool in ArcGIS

I have two raster layers. Layer A has a cell size of 1020 m. There are 31,840 rows in the attribute table, each corresponding to a different 1020 m x 1020m cell. Layer B has a cell size of 30 m. The ...
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67 views

Copy parts from several attribute tables in shapefiles?

I have several shapefiles from which I wish to take parts from their attributes tables to make a new attributes table. Is this possible without destroying the original attributes table? I have ...
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1answer
51 views

Joining a table with thousands of transactions to one point (location) in Arc Map

I have a large transaction data set in the millions and around a 100 positional points. I need to join the transaction data set to these points. Arc map won't let me join them without errors or if it ...
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2answers
141 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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98 views

pyQGIS (Spatial Join): Sum features of attribute from point layer and join with vector layer

I am new to Python and QGIS. I have avoided asking questions up to now. But by now I have developed a reasonable idea of where i want to go so and where I am stuck. So, I have decided to ask but sorry ...
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1answer
74 views

How to do spatial join which is also based on time using ArcGIS for Desktop?

I have a time series plot of house sales for 4 years, but in those 4 years some districts change. I was wondering if I need to split the data into 4 layers for each year in order to join them to their ...
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2answers
119 views

Create line between polygon and nearest raster cell

I need to create a line between polygons (centroid) and the nearest cell of a raster dataset. The polygon and raster do not intersect. Each polygon has a UID. One cell can be linked to many polygons, ...
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61 views

Trouble intersecting a polyline and contours (Hack index / stream length gradient index)

Working on creating polylines for measurement using SL index (hack index). So far I have the main trunk of a stream, and contours at 10m. What I am trying to do is a) get the elevation at each ...
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397 views

Arcpy Spatial Join Running Extremely Slow [closed]

I have a simple arcpy script that runs a series of spatial joins. However, the script is running extremely slow: one set of joins takes over 12 hours. There are a few for loops, but I have timed these ...
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126 views

Calculate values to represent bus route attribute

I'm working with bus routes and looking for a way to represent some values in this system. I want each street to be represented by thickness based on value returned in SUM or COUNT. I don't have big ...
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121 views

How to display labels from many-to-many relationship in ArcGIS 10 using VB.NET?

I have two tables in a geodatabase: parcel; and person 1 or + parcel, can have 1 or + person (relationship is many-to-many) Using VB.NET I can display all the parcel labelled with the ...
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98 views

Summing time spent on effort from point GPS data tracks in grid cells

I have one layer of point data representing GPS tracks collected during vessel surveys (an individual survey is indicated as the time between departing and returning to shore and there can be more ...
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394 views

How to transfer the attributes of features based on their spatial relationship?

I'd like to check if a point feature class is placed on a line feature using python in ArcGIS 10.0. I have created a set of point features and placed them directly on a group of line features at ...
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23 views

How to perform a join on simultaneous spatial and attribute criteria in PostGIS [duplicate]

Possible Duplicate: How to perform a join on simultaneous spatial and attribute criteria in ArcGIS? I have two point layers and want to perform a spatial join on nearest distance. I have a ...
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138 views

duplicate polygons once for each point inside

I have a set of feature classes: points representing addresses, and polygons representing buildings. Sometimes there are more than one addresses per building. I use Maplex to generate and place ...
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35 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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2answers
398 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
32 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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1answer
73 views

Find polygons that contain a specific number of points

I want to make a polygon selection based on a specific number of points. For example, I want to select those polygons that contain more than 30 points. I don't want to select every polygon that ...
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1answer
61 views

Export data of points and polygons which are intersected

I have a shp file of roughly 100 Polygon. I also have a corresponding list (including X,Y data) of about 3000 points, in a csv file. Overlayed within QGis the 100 polygons contain about 90% of the ...
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66 views

Assigning vector data attributes from other adjacent data

I am supposed to do a presentation on how to do this, and I'm not exactly sure what it is asking. The question is: "how can you assign vector data attributes from other adjacent data?" I am in a ...
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53 views

Display county for random points

I have a county level shape file for South Carolina. I generated random points using Vector->Research Tools-> Random Points. The Attribute tables for the random points layer has only the ID included. ...
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1answer
103 views

Merging attributes from parcels within a census tract

I am working with land parcel data and Arcmap 10.1. Each land parcel has a code (1,2,3,4) depending on the type of water supply source that it uses. I am trying to take a tally of each code within ...
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1answer
73 views

using joinDelimiter with MergeRule “Join” (Python in ArcGIS 10.1)

In this example from ESRI, the MergeRule is set to "Mean" and the values from two fields from two different feature classes are averaged and written to a new field. # Set the merge rule to mean ...
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983 views

How to Join Attributes by Location in QGIS 1.8.0

I have a points layer with site attributes and a polygon layer with region attributes. I'd like to join the names of the regions to the point site locations using QGIS 1.8.0., on Windows XP. ...
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1answer
102 views

SpatialJoin with “closest” option ok in python script but not when in arcmap toolbox

I have the following problem. I want to create a toolbox to obtain the distance between a polygon (Bldg.shp) and a point (pts.shp). I have started with a simple following python script: import arcpy ...
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70 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 ...
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38 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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2answers
66 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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1answer
82 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
34 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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64 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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42 views

Wrong line segments are being matched by Spatial Join in ArcPy?

I'm working on an analysis in which I want to compare 2 polyline-datasets. In one of the first steps, I use a spatial join to create a sub-dataset with only those line segments that have an exact ...
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76 views

Needing a python script to spatially join points to line segments with merge rules and a frequency count

I have a data that contains 4 years of fatal crash point incidents. Within the data set there is a field for the "Death Count" and "DWI Related," where death count is the number of deaths resulting ...
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1answer
68 views

How to add point attributes to containing polygon?

I have three layers in a QGIS project: layer 1 is a boundary layer of polygons each with and id I will call "p_id" layer 2 is a point layer each with an id called "p_id" layer 3 is a .csv layer ...
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51 views

Truncate operation not working in ModelBuilder?

I'm having trouble with a model that is supposed to truncate data from the attribute table of a feature class (which is in a file geodatabase not ArcSDE) and then append it with new data. The ...
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1answer
50 views

Summing the number of intersections with a separate buffer layer

I have dabbled with ArcGIS and QGIS a bit, and I consider myself a self-taught beginner with a whole lot to learn. So, I have two layers: 1) census blocks, and 2) point data. My goal is to calculate ...
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35 views

Consult the charts of a line

I have a table of bus lines and other bus stops in PostGIS. Are conformed to the image below, the lines and the stops on the sides. I want to relate the lines with parades through a spatial query. ...