Geographic Information Systems

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Use for questions about the ArcGIS Intersect tool

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Specifying output location of iterated Intersect tool results using ArcPy?

I have created a code that iterates through a geodatabase, intersecting each feature with a road network. I am not sure how to make it so the intersected features are output into a new geodatabase. ...
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1answer
28 views

Adding vertex where point intersect in ArcGIS Desktop?

How do I add a vertex to a line or polygon where a point feature intersects it? I am using ArcGIS Desktop.
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2answers
58 views

Using Update Cursor within Search Cursor with ArcGIS Pro?

I am new to using ArcPy/Python and I'm running into problems with a script I'm trying to write. I'm using IDLE Python 3.6.8 ArcGIS Pro 2.4.0 Here is what I'm trying to do - I have 2 feature classes: ...
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0answers
34 views

How to clip polygon such that only regions in 'line of sight' from a point remain

I am using ArcGIS. My point represents a monitoring station and is located within a polygon representing a river catchment. I have created a buffer of 300m representing the detection range of the ...
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1answer
34 views

Selecting points within fishnet grid cell with criteria of at least 3 unique values using ArcGIS Desktop?

My goal is to create a raster from points with values based on at least 3 unique IDs within a cell. Cells that had fewer than 3 points with unique IDs will have value NA. See below for clarification. ...
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13 views

Subtracting features from one layer using another layer in ArcGIS Desktop? [duplicate]

I have 2 layers of land parcels for a particular area (shown on top of each other like so): The darker parcel lines and road polygons are from an earlier parcel map. The land has been developed and ...
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2answers
60 views

Finding overlay/intersect shape percentages using QGIS? [duplicate]

I am working on a project in which it's necessary for me to overlay 2 layers (a map of precincts and a map of census tracts). I need to be able to determine the %area of each census tract covered by ...
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0answers
16 views

Automating Cluster Assignment of Grid Squares?

I'm using MapInfo. I have a grid layer which has results assigned to each grid square. I'm wanting to automatically assign cluster references using a minesweeper style approach, i.e. where grid ...
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0answers
13 views

Retrieving which Polygon contains a point

I am using the ArcGIS Online and have a layer within a map. Within the layer I have several polygons. When I load the map via the com.esri.arcgisruntime library, I was able to load the polygons as ...
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0answers
35 views

Clip/Intersect tool stopped working

I am using ArcMap 10.5.1 I have been using the Clip tool to cut out the amount of a given habitat type found within individual buffers around individual samples. After successfully executing this ...
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0answers
14 views

Making intersection between two or more WMS layers in ArcGIS Server?

I have two polygon WMS layers: http://myserver:6080/arcgis/services/mylayer1/MapServer/WMSServer http://myserver:6080/arcgis/services/mylayer2/MapServer/WMSServer I need rendered polygons from layer ...
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1answer
69 views

Why does spatial join on geodataframes return empty result?

I have two geodataframes that I want to perform a spatial join on; one is points, one is polygons. They are both dtype: int64. They both have .crs = {'init': 'epsg:4326'}. I have verified both of them ...
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0answers
46 views

Joining attributes by location/intersect works for all but one polygon in QGIS?

I used the Join attributes by location and Intersect tools in QGIS 3.4 for my points layer to add a column with name of the intersected area into the attribute table of points. It works perfectly for ...
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3answers
173 views

Intersect multiple layers at once QGIS

I'm very new to QGIS and am just learning the intersect function. I have about 10 polygons that overlap (not perfectly) and one layer of about say 15 points. I want to know with which of the polygons ...
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0answers
20 views

ArcGIS Pro Unable to Pairwise Intersect Point with Polygon?

I am trying to create a point from XY coordinates then use Pairwise Intersect to determine the corresponding parcel. The intersect is not returning any values. Any thoughts on the error in this code? ...
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1answer
35 views

In ArcGIS 10.6, how do I build a model to intersect iteratively?

This is my first time building a model from scratch, so let me know if I've omitted anything in describing this question. I have a geodatabase that contains shapefiles (polygons) of watersheds. I ...
2
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1answer
33 views

Identifying intersections in ArcPy?

I have two shapefiles: one containing a single polyline feature, and the other containing a number of polygons. I'm trying to use ArcPy to identify which polygons are crossed by the line, and then ...
1
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1answer
23 views

Select records from shape that do not match another table's values

New to the forum, so I apologize for my bad English and if I'm being inconvenient somehow! I read answers that are similar to my question but none of the ones I found fits my case. I have a shapefile ...
2
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1answer
38 views

Determining if raster can be clipped with polygon using ArcObjects?

Using ArcGIS 10.4.1 ArcObjects with geoprocessing. I have an input feature class with 100s of polygons and also one raster. I iterate through each polygon and clip the raster and then do additional ...
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1answer
45 views

Calculating total area from two intersected polylines using ArcGIS Desktop?

If two polylines intersect with each other and there are more than 2 intersect points, there is more than 1 closed area will be created. How can I get these areas as polygons in ArcGIS Desktop? For ...
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2answers
56 views

Java GeoTools API: getInteriorPoint does not work on an intersection between Polygon and MultiLineString

I'm working on a Java project using GeoTools API that want to get the interior point getInteriorPoint(), from the geometry coming from an intersection between a Polygon and a MultiLineString. Please ...
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1answer
89 views

Is Geometry object intersect faster than Intersect_analysis in ArcPy?

I have a script attempting to identify Many-to-Many matches between two different parcel layers. It is an iterative process, during which I dissolve the selected polygons in layers A and B, intersect ...
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1answer
74 views

Finding polygons that overlap other polygons within same layer using ArcPy? [duplicate]

I have a shapefile containing polygons. I would like to select all polygons within the layer that overlap with other polygons within the same layer. The closest I have gotten is the Intersect tool ...
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3answers
89 views

QGIS: Intersect rasterdata with vectorline

I am new to QGIS. My aim is to be able to get information of the height at any point on my vector line. My raster is a map with height information in the format geotiff. The vector layer is in the ...
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0answers
36 views

How to output file with all overlaps between two Shapefiles - Neighborhood/Zip Codes [closed]

I have a pretty specific problem I would like help with. I have two shapefiles: neighborhoods from https://www.zillow.com/howto/api/neighborhood-boundaries.htm zip codes from the census bureau: ...
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1answer
31 views

Performing Intersect of polygon with raster, retaining ID of polygons? [closed]

I have a raster data set of land cover and a set of residential addresses (points). I want to find out what percentage of each land cover type is within 1km of each address (i.e. in a 1km buffer ...
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2answers
213 views

Combining two spatial tables in PostGIS

I have two PostGIS tables with geometries. One with number attributes and one with letter attributes. Each table has two features (rows). I would like to apply a operation on both stables so that I ...
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3answers
218 views

Using postgis to flatten all polygons in table

I have a table with many polygons. The polygons all have a name and a value. I want to flatten these polygons so that each polygon border remains as border to the resulting polygons. Instead of ...
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1answer
44 views

Intersecting data in ArcGIS ModelBuilder?

I have 432 suburbs polygons and an open space dataset comprising polygons I need to extract for each individual suburb the open space polygons inside and those which straddle the suburb boundary (Not ...
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1answer
269 views

Speed up intersection, union in PostGIS?

I have three tables: water, wetlands and parcels. I want to update parcel table with area that is covered by water or wetland (they can overlap). So I want to Merge water with wetland Dissolve and ...
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2answers
68 views

Move files from Table Of Contents to a geodatabase in ArcPy?

I have a program that selects certain files and imports them to the Table Of Contents in ArcMap. I would like to do some self intersect operations to all and put them both the original files and the ...
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1answer
270 views

Intersecting raster with polygon grid in ArcGIS Desktop?

I'm trying to generate the fractional coverage of land-cover within polygon grid cells. My land-cover is a 30m raster dataset (10008x8939 cells) and my grid is a fishnet shapefile (approximately 1km ...
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1answer
24 views

calculating share of layer refer to another layer

I have two vector layers (1) with 107 subdistricts (2) soil map with classification of the soil value. I like to calculate the share of the area of the soil map with values classified as "very_high" ...
3
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1answer
92 views

Determining validity of odd polygon using ArcObjects?

Using ArcGIS 10.4.1 a user in our department created a polygon and saved it to a feature class as shown below. The area covered is correct as at times it could overlap itself. I have calculated the ...
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1answer
52 views

Using ModelBuilder to intersect point data against multiple polygons?

I'm a novice GIS user and looking to create a model in ModelBuilder that can intersect point data which is a survey data made up of 1000's of individual points in dbf format. This data will change ...
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1answer
77 views

Difficulty using variables as input parameters for arcpy.Intersect_analysis

I have 2 variables created from a previous geoprocesses: fc = arcpy.JSONToFeatures_conversion("cslf.json", os.path.join("cslf.gdb", "cslf")) selectFeatures = arcpy.CopyFeatures_management(select, "C:\...
1
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1answer
278 views

Geoserver CQL file queryCollection limit

I'm using GeoServer 2.9.0 and I need to get some result using CQL_FILTER, intersects between polygon and line String layer, cql query is as follow: INTERSECTS(geom, collectGeometries(queryCollection('...
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1answer
18 views

Intersect tool unable to find feature class in Python script

I keep receiving this error: from this piece of my script: # Process: Clip arcpy.Clip_analysis(Full_Grid, NAR_U9, os.path.join(Output_Folder, "Cruise_Grid_U9"), "") Cruise_Grid_U9 = os.path.join(...
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2answers
483 views

Finding overlay percentage between two polygon shapefiles

I have two layers that I am currently working with: 1. Parcels/property boundaries and 2. Wetlands I am trying to determine the parcels that have 0 wetlands and then for the parcels that do have ...
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0answers
21 views

Finding number of links where buffer and link intersect using PyQGIS?

Created a buffer of 0.001 size at the beginning and end of each link. I want to extract the starting point and the ending point of which the number of the buffer and the link intersect is one. layer =...
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2answers
266 views

Combining attribute table of polygon and point shapefiles using ArcGIS Desktop?

I am fairly new to using ArcGIS Desktop. I am working with two different types of data. The first is a large shapefile that contains small polygons that distinguish different types of vegetation. ...
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1answer
78 views

Calculating total numbers of wells that fall into each county of table using ArcPy?

Directions: For each county calculate the total numbers of wells that fall into that county, and update the county table with the total count. This is the code I have so far. Problems: The ...
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0answers
107 views

Line and Polygons Intersect Results QGIS 3.0

Dark Green - Line Light Green - Buffer created from Line Pink Polygons - Parts of the black polygons that fall within the buffer zone I have this line going though a bunch of polygons. The result I ...
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0answers
27 views

Using Intersect function gives error code Intersect [175528_07022018]?

I´m doing field selection studies for red deer in ArcGIS. I have several years of data and have made buffer polygons base on the red deer gps positions. The buffer polygons should be integrated with ...
0
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1answer
83 views

Counting Block Group Populations in buffers using ArcGIS Pro?

I am trying to find the total population in 2-mile buffers to find the population 2 miles around primary care clinics. So far I have done this: Added block group outlines and joined the areas with ...
4
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2answers
59 views

Calculating number of polygons or points that a set of polygons intersect with in ArcGIS

I have a set of ~100 polygons in ArcMap 10.2.2 that were generated using the minimum bounding geometry tool. I have a second set of ~800 polygons generated the same way. What I need to know is for ...
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1answer
35 views

Point intersect-setting tolerances in ArcGIS Desktop?

I need to find out which polygon a series of points fall in. Normally I would do this with an intersect so I can then export the data and process it externally. As the point layer contains some ...
2
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1answer
23 views

Strange “inFeatures” value for Intersect tool

I am rather new to Python but I am trying to define a function that will take the output of one of my prior functions (5 buffered stream files) and intersect each unique streamBuffer file with an LULC ...
0
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1answer
81 views

Selecting intersected lines from two common attributes in very big data set?

I have a layer with lines representing cables. The data set is huge, over 100 000 polylines. Some of these cables lies within the same shaft, some of them lies within the same shaft as an other cable ...
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1answer
67 views

Finding intersection point of point and polyline using ArcMap?

I have two shapefiles that looks something like this: One point file and one polyline file. I want to find the points where the points and line would intersect if you drew a perpendicular line ...

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