1
vote
1answer
65 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 ...
0
votes
1answer
41 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 ...
1
vote
1answer
83 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 ...
0
votes
1answer
61 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 ...
0
votes
0answers
58 views

How to create a many to one spatial join?

I have a polygon feature class of territories and a point feature class of trees. The points have many attributes, one of them is the tree species name. I need to get the list of all the tree species ...
1
vote
1answer
67 views

ArcGIS spatial join - WITHIN A DISTANCE including distance

I am applying a spatial join in ArcGIS between points (target features) and lines (join features). I want to have a 1-to-many join, so I use the match option 'within a distance'. So far so good. The ...
1
vote
1answer
55 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 ...
1
vote
1answer
46 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 ...
0
votes
1answer
178 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 ...
3
votes
1answer
126 views

how to create a network from gps tracks?

I'm trying to build a network from several GPS-trakcs, to digitalize hiking routes on my land. I have several GPX-files from routes I've tracked with the gps. I managed to display them in Arcmap ...
0
votes
2answers
96 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 ...
2
votes
2answers
99 views

ArcMap's Join and symbology

I'm still new into the GIS World, and here's what i'm trying to achieve , i have Yemen administrative shapfile with list of governments, and districts,i also have an excel file with a list of migrants ...
1
vote
2answers
84 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, ...
2
votes
2answers
104 views

Spatial Join of 2 line layers offset by minuscule amount

Let's say I have 2 line layers (green & red, in the image below) and I need to transfer attributes from one layer (red) to another (green) by doing a Spatial Join. The layers are identical, but ...
1
vote
2answers
170 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 ...
2
votes
3answers
204 views

Produce a list of polygons that a line crosses

I have a polyline feature class and a polygon feature class. What I want to do is add a field to the lines that lists all polygons that touch the line. This is effectively performing a ...
2
votes
0answers
82 views

(Solved) Near/Spatial Join pick the wrong polyline segment as closest [closed]

I have a set of points near a street centerline. I need to find the perpendicular point on the street centerline, and use their x y instead of the GPS information of the original points. I tried Near ...
1
vote
1answer
192 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 ...
0
votes
1answer
59 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 ...
1
vote
1answer
185 views

What's the difference between Spatial Join Tool and Spatial Join Function in ArcGIS?

I am curious to know if anyone can shed some light on the difference between ArcGIS' Spatial Join geoprocessing tool (found in Analysis -> Overlay toolbox) and the Spatial Join 'wizard' (found by ...
1
vote
0answers
102 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 ...
2
votes
1answer
848 views

Raster Version of Spatial Join (one to many) [duplicate]

I have two raster layers that are identical in shape (they overlap exactly) and I need to perform the raster equivalent of a Spatial Join (one to many). My files need to stay in raster format ...
2
votes
1answer
141 views

Why might Spatial Join appear to produce incorrect values?

I'm trying to do a spatial join of a point file (created from a raster) to a polygon (target), where I am joining the GRID_CODE value from the point to the polygon. I've tried a variety of ...
3
votes
1answer
698 views

ArcMap 10.1 Spatial Join: 'Contains' and 'Within' question

I have two polygon datasets: electoral districts and postal code areas. I'm performing a spatial join to see which postal code areas are completely within a district (the area can touch the borders, ...
2
votes
0answers
129 views

Automatic attribution of one layer from another based on spatial relationship?

I have two layers with a 1:many relationship. Working within ArcMap, I'd like to have that relationship somehow formalized so that when I add a new feature to the child layer, it automatically gets ...
4
votes
1answer
374 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 ...