Questions tagged [intersect]
Use for questions about the ArcGIS Intersect tool
58
questions with no upvoted or accepted answers
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Adding raster value with specific equation using ArcMap
I am trying to develop a raster layer with the interference of streetlight in this example:
As you can see, there are multiple buffer rings around a point layer. I actually want to transform this ...
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0
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391
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Counting nodata and data pixels using PostGIS
I'm using PostgreSQL 9.2.4 and PostGIS 2.0.3.
I have some raster layer and I'm trying to get the count of all pixels (including nodata), cliped by polygon.
Raster was imported by raster2sql:
...
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3
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85
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Dynamic filtering based on selected Layer in ArcGIS Desktop?
I am not sure this is even possible, I have about 38 geographical polygon layers showing areas of the UK, I also have a query (point layer) that shows all of the offices around the uk. What I am ...
3
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3k
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Clip shapefile with shapefile
There are two shapefiles. One is a compilation of municipalities on the coast with borders extending into ocean. The second shapefile is a coastal border.
I'm trying to clip the municipality ...
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44
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Line has been split, total line is different from unsplit line using ArcGIS Pro
In ArcGIS Pro, I've done a intersect on a line based on an area boundary.
When I compare the length of the intersected lines, it should equal the length of the original line. However there is a slight ...
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2
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132
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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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2
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0
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252
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Need to find pair-wise intersection for multiple polygon layers?
I have 20 different polygons and I'd like all the pairwise intersection among them. I might be wrong, but I think Intersect isn't working because it's trying to find the intersection of all polygon ...
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173
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How to project coordinates in spatialite using PHP?
I'm using a spatialite database in a PHP program and I need to simulate an "identify" on a polygon layer (EPSG 32632), using point whose coordinates are dinamically generated.
I know that this query ...
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186
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ArcMap - Two lines clearly intersect but the intersect tool disagrees
ArcMap 10.4.0.5524 for Desktop. No internet connection.
Two sets of lines (both in a file geodatabase). I want to get the points where they intersect. I use the intersect tool with both sets of lines ...
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25
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List points from other layer where intersects with line
I want to make an easy script for QGIS calc. I have 2 layers (points, and line).
Painting the line crosing by points. At end I want to automaticly fill fild (text attribute) with list of points.
I was ...
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26
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Use ArcGIS to classify intersection types
I am using ArcMap 10.4
I have a shapefile of a road network. Each road has a functional class value in the 'FC' field. I'm trying to determine how often roads of each functional class intersects ...
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Counting number of intersections for N linestrings
I have a database with D entries of polygons representing buildings. Each entry/row has the following information: id, min_height, max_height, geom (min_height is for buildings that have some kind of ...
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QGIS: Intersect two polygons, one line layer as Output
I have two polygons that intersect, now I want to calculate the length of the outline of the new polygon, but only the outline it shares with one of the input polygons. Is there a way to enter two ...
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150
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Adding attributes to intersected polygons from corresponding columns R
In short, I have a set of 10 polygons in Pol_large, that I want to split to individual polygons by intersecting (intersecting areas become new polygons, and old ones get cropped). In result, I am ...
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295
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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 ...
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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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202
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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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56
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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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27
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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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484
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Add an attribute to polygon layer based on if it intersects with another layer
I have a layer of buildings and want to give it each polygon an attribute of 1 or 0, based on if it intersects a flood extent. Basically, a flooded or not flooded attribute.
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Using Intersect and dissolve to divide district into certain regions with data of interest without losing spatial data in ArcGIS Desktop?
I am using an intersect/dissolve feature workaround in ArcGIS Desktop 10.5.
I have a layer of districts of a city and another layer of parks in the whole city /layer of noise amount around big ...
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136
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ArcGIS Intersect not showing on all street intersections
I have a centerline shapefile and have extracted a lane way feature class from it as I am attempting to show all intersections where these lane ways cross with public roads.
I utilized the intersect ...
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237
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Intersect error 000732
I'm trying to do intersect with 2 shapes, but it's not working because it can't read my shapefiles... I don't know why, because when i ran it with my other script, it works perfectly!
Traceback (...
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59
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Sudden errors intersecting NDVI raster data with overlapping polygons in GME
I am experiencing errors with Geospatial Modeling Environment (GME) that suddenly developed after things were working perfectly.
Description of software installed: ArcGIS 10.3.1 for Desktop and ...
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192
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Batch Intersect Not Working
I'm trying to run a batch job for the Intersect(Analysis) tool in ArcMap 10.3, but when I do for 20 intersects, it brings back this error:
ERROR 000210: Cannot create output.
However, when I do an ...
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72
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Highlight areas without overlapping Shapefies in QGIS 2.16
I have a dataset with several hundred shapefiles and need to ensure that there is at least double overlap throughout. I need a way to extract the areas without double overlap, or at least a way to ...
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144
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Identifying rasters with specific attribute value that intersect polygon using ArcGIS for Desktop?
I have numerous raster files that each contain an attribute field "VALUE" that can take on the values 0 or 1.
How can I identify rasters that have any of their "VALUE=1" cells intersecting a focal ...
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116
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Create junction raster from stream and road rasters
I have converted two vector polyline datasets to raster format. One represents streams, and one represents roads. I need to create a third raster layer that contains cells where there are stream ...
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484
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Double Iteration Intersect in Model Builder
I need to intersect two highly-overlapping shapefiles, the first with 60 polygons (ponds), the second with 3000 (lilly pads). A straight-up intersection does not work (60 x 3000 -- it runs for hours ...
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How much Vector Grid is intersected by another polygon layer using ArcGIS for Desktop?
I have a grid 5X5 sqkm and another vector layer with 2 different land cover type (let's say "forest"/"no forest").
I wish all the squares composing the grid to get a value ranging from 0 to 1 ...
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1k
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Python QGIS reliable intersection/overlap check between points and lines
In my script I need to check, whether a point I created stored in a memory layer lies on a polyline, which is in another memory layer. I am certain, that the point does overlap/intersect the line, ...
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59
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Select polygons that intersect points in QGIS using WFS data
How to select polygons that intersect points in QGIS using WFS data? I am trying to select polygons from a WFS remote database that intersect a local point shapefile. The selection by location does ...
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59
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Intersect warning 000117
I have tried repairing the geometry on both files, but it keeps giving me the same warning. Both are shapefiles, in same coordinate system. Both are large files. One has over 272,000 rows, the other ...
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50
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Moving points out of intersecting polygon using ArcGIS Pro
I have set of points overlapping/intersecting a ditches polygon. Similar to the following image.
Is there any tool available in ArcGIS Pro to move these points to the nearest location out of ditches ...
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34
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Selecting unclassified road line (One layer) that miss survey data (another layer)
I am working on QGIS 3.10. My goal is to select all the Unclassified road that do not have any scheme. For that I need to overlap the two layers (Unclassified road network and schemes) together in ...
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213
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Why do clip and intersect give different results (geometry)?
I have a boundary (clipper) and street data (lines, clipee). I calculate the sum of the street length within the boundary for communities.
From a performance perspective this is faster to do over many ...
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27
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Attributes for points created by Intersect tool
Scenario:
I am using ArcMap 10.3.1 to find the locations where an animal crosses a road from GPS data and the associated attributes such as X and Y (which I can calculate) and the date and time of ...
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1
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79
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Using Intersect with arcpy.GetParameterAsText() and ArcMap
I'm trying to use the intersect tool, with one of my inputs being from a get parameter as text. As I don't have an advanced licence I have to iterate through the list to run the intersect on each item ...
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1
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82
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Bring Line ID which intersect with a point buffer in arcpy
In ArcPy, I want to take each point buffer one by one and check which two lines intersect with it and bring the ObjectID in order to use those two lines ID in this script.
import arcpy
arcpy.env....
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20
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Predicting future coastlines based on TIN/Raster DEM and elevated polygon using ArcMap
I am trying to figure out how I can create projected future coastlines by intersecting an elevated polygon (representing future sea level) with the TIN/DEM of my study area.
Does anybody know how I ...
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62
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Intersection of 3d layers in PostGIS with SQL Queries
I am currently working on a project for Uni with PostGIS and SQL Queries. I am trying to calculate the intersection between two 3d layers.
Based on online tutorials I came up with this query.
SELECT ...
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62
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Intersecting a polygon with a line
I'm having an issue intersecting a polygon with a line in QGIS. The split with lines option has worked for me so far but for some reason wont work for this polygon on the left. I need the polygon top ...
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93
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Finding average value from polygon areas in fishnet cell based on lat/long of points using ArcGIS Pro
I have created a fishnet of
0.5x0.5degrees and wanted to know the average lat/long in each cell in ArcGIS Pro.
How could I accomplish that?
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348
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Intersection of points for overlapping polygons
I have the following intersection task:
I want to do an intersection of points and polygons. I want to add the variables of the polygons to the intersected points
Some of the points fall in more than ...
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75
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Calculate raster landcover area in multiple overlapping buffers
I have 900 1km buffers (polygons) in one layer and a raster layer for forest area (reclassified into forest 1, non forest 0).
I have tried:
Tabulate area - but realised this does not work for ...
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58
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Intersection of all layers of different feature classes using ArcMap
I have 20 different layers where a few of the layers are lines ( rivers) some are points and a few are polygons. I need to find all the single polygons where all 20 layers intersect as describe:
...
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67
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How to performing selection by expression using QGIS
I am using QGIS 3.8.
I have a grid (hexagon) and a set of points.
I am trying to select the hexagons containing at least 1 point. So far nothing complicated. Except that sometimes my points overlap 2 ...
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668
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Creating python function to merge line segments if they are connected using ArcPy
I have a polyline shapefile consisting of several line segment features. I want to do a merge operation if the line segment features endpoints are connected, and if the features are disconnected do ...
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198
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Intersecting multiple feature classes with just one feature class?
I have multiple feature classes (fc) and would like to intersect them with one other fc, is this possible without merging/joining the multiple fc's?
Using ArcGIS Pro I've attempted to intersect ...
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104
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Extracting number and attributes of points in a GRID in ArcGIS
I will be thankful if someone can help in extracting the number of points with attributes using the grids. For example I want to know number of species points in a grid with attributes. I have ArcGIS ...
