Questions tagged [intersect]

Use for questions about the ArcGIS Intersect tool

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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?
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2answers
44 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
12 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
12 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 ...
1
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1answer
57 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
25 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
12 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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0answers
36 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 ...
4
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3answers
139 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 ...
1
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0answers
16 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? ...
2
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1answer
191 views

ogr2ogr sql - returning points from one sqlite dataset that intersect with another

I am having great difficulty with the simple st_intersect command when applied to two datasets containing points, derived from the same source. I am using osgeo4w gdal 2.1.3 at command line. My aim ...
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2answers
211 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. ...
5
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2answers
2k views

Calculating proportional area of polygon within another layer's polygon using QGIS?

I have two polygon layers, model and ntem, whose features overlap and intersect one another. I would like to calculate the proportion of the area of the model polygons which fit within each ntem ...
0
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1answer
129 views

Batch updating point attributes based on values of underlying polygon using ArcGIS Desktop?

I have a points shapefile with a blank field. I want to populate this field with an attribute obtained from another underlying (polygon) shapefile. I can do this for a single record easily using ...
0
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1answer
29 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
32 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
35 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 ...
0
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2answers
42 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 ...
1
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1answer
69 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 ...
-1
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1answer
58 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 ...
0
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3answers
76 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
33 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: ...
2
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2answers
179 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 ...
0
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1answer
30 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 ...
3
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1answer
91 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 ...
2
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1answer
5k views

Intersection of a raster and polygon in ArcGIS 10.3

I have two data sets one raster and one polygon. I am interested to see learning the area where the two overlap. I was thinking that I could use the intersect function, but since one of the layers are ...
4
votes
3answers
185 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 ...
0
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1answer
42 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 ...
1
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1answer
212 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 ...
2
votes
1answer
130 views

Selecting polygons which contain majority of area from intersected layer by polygons using QGIS?

I have two polygons layers (a squares grid (blue in image) and a rectangles grid (green in image)). Because the different polygon sizes, different squares overlap with a single rectangle. I need to ...
1
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2answers
67 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 ...
4
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2answers
58 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 ...
1
vote
1answer
228 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 ...
1
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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" ...
1
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1answer
235 views

True GIS clip of polygons + attribute table

How can a true intersection/clipping of polygons be done in R? Problem description: Shapefile1 contains only one feautre without attributes (or - at least - attibutes don't matter). Shapefile2 ...
0
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1answer
51 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 ...
0
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1answer
67 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
vote
1answer
236 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('...
0
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1answer
17 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(...
2
votes
2answers
400 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 ...
1
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0answers
20 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 =...
-2
votes
1answer
77 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 ...
1
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0answers
101 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 ...
0
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1answer
79 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 ...
0
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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 ...
1
vote
2answers
339 views

Clip/Intersect in QGIS 2.8.2 resulting in empty attribute table

I'm trying to clip two layers together (a layer showing the area of a city and a layer showing a political boundary running through that city) in order to show the location of the political boundary ...
1
vote
1answer
1k views

Raster intersect and gIntersection give different results in R

I'm trying to clip a polygon shapefile (species distribution) with another polygon grid. The goal is to calculate the area occupied by the species within each grid cell. I was able to do it with ...
0
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1answer
33 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 ...
1
vote
1answer
548 views

Getting all Null when spatial joining lines with polygons (ArcGIS Desktop 10.5.1)

I'm trying to append the attributes of the lines (0 or 1) to all the polygons that they intersect (take the mean if multiple lines exist), as shown below. The polygons, lines and the DataFrame are ...