Questions tagged [intersect]
Use for questions about the ArcGIS Intersect tool
145
questions
1
vote
0answers
19 views
Intersection between two polygons using GeoDjango
I've three models:
class Buffer(models.Model):
geom = models.PolygonField()
class ImportedPolygons(models.Model):
geom = models.MultiPolygonField()
class IntersectionOutput(models.Model):
...
1
vote
1answer
69 views
Line and polygon intersection in GeoPandas/Python
I am trying to intersect two GeoPandas data frames, the first one is the street data (streets) and the second one is a buffer (polygon) around a point (buffer).
I want to find the intersection of ...
1
vote
0answers
39 views
Clip/Make difference between line and polygon layers [QGIS]
I need to clip one layer out of another, both are vector layers (one of them i got from vectorizing a raster layer). When i try to clip out "LowNitro" out of "FlandersAgriculture"
Intersect doensn't ...
0
votes
2answers
26 views
Ignoring overlapping polygons within same feature class when using Intersect tool of ArcGIS Desktop
I am attempting to intersect two feature classes, one of which has many overlapping polygons. I don't want to calculate the intersection of overlapping features within the same FC, but instead only ...
0
votes
0answers
32 views
Finding matching point of two layers
I have two layers in ArcGIS:
Highway layer (9000 data points (or values))
Safe zone (4 types of values i.e. safe zone, medium zone, bad zone, and worst zone).
Now I want to do analysis to see how ...
0
votes
1answer
21 views
Query polygons using ogrinfo but not generate a new layer
I want to list the polygons in my layer A that intersects other polygon B, using ogr.
The desired result is similar to "Select by location" tool in QGIS or ArcGIS Desktop, where I expect an index of ...
1
vote
2answers
120 views
Find points within polygon with PostGIS really slow
From some millions of points I am trying to select those points that are within a polygon and save them into a new table. Both datasets with spatial index and both on projected coordinates.
The query ...
1
vote
1answer
211 views
Overlap Analysis in QGIS
With QGIS 3.8 a new Tool has been introduced: Overlap Analysis. It says that it "calculates the area and percentage cover by which features from an input layer are overlapped by features from a ...
0
votes
1answer
30 views
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. ...
-1
votes
1answer
34 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.
1
vote
2answers
80 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: ...
1
vote
0answers
36 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 ...
2
votes
1answer
81 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. ...
0
votes
0answers
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 ...
-1
votes
2answers
93 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 ...
0
votes
0answers
19 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 ...
0
votes
0answers
15 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 ...
0
votes
0answers
44 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 ...
0
votes
0answers
20 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 ...
2
votes
1answer
115 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 ...
1
vote
0answers
98 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
votes
3answers
265 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
vote
0answers
27 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?
...
0
votes
1answer
42 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
votes
1answer
35 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
vote
1answer
26 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
votes
1answer
45 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 ...
-1
votes
1answer
63 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 ...
0
votes
2answers
124 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
vote
1answer
115 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
votes
1answer
124 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
votes
3answers
135 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 ...
3
votes
0answers
51 views
Specific intersections [closed]
I have a polygon layer that looks like this i.e. they overlap.
When I run an intersection between the layers, I get more polylines i.e. for the circle on the top, the three lines get split because of ...
1
vote
0answers
39 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: ...
0
votes
1answer
35 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 ...
2
votes
2answers
258 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 ...
4
votes
3answers
246 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
votes
1answer
57 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
vote
1answer
406 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 ...
1
vote
2answers
73 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 ...
1
vote
1answer
393 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
vote
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
votes
1answer
104 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 ...
0
votes
1answer
56 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
votes
1answer
99 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
366 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
votes
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(...
2
votes
2answers
642 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
vote
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 =...
0
votes
2answers
389 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. ...
