The action of removing data attributes or features through the processes of positive or negative selection and deletion.
1
vote
1answer
40 views
st_difference (erase overlapped feature) line from polygon
I have two layers.
One is MultiLineString and the other is MultiPolygon.
I am trying to erase lines that are on the polygon feature
With QGIS difference tool, it worked just fine
This is my code and ...
0
votes
0answers
22 views
QGIS/PostGIS Difference Geoprocessing with tolerance
This is probably an extended question from my another question (Increase spatial query performance (st_difference))
This is the background is this. I have a road link and a tunnel link.
From the road ...
0
votes
3answers
89 views
Increase spatial query performance (st_difference)
I have two link tables
one is 9029 rows (and let's say this table is A) and the other is 11698 rows (and this table is B)
the both tables are road link and A is for tunnel link and B is road link
...
0
votes
1answer
22 views
Erasing small polygon which is overlaid by bigger polygon?
There is a huge recreation area but inside this recreation area there is some other zoning.
I finished creating all polygons but this recreation area polygon overlaps with the small zoning polygons ...
2
votes
1answer
102 views
Turning on raster painting toolbar of ArcMap?
My aim is to delete raster cells using the erase tool in the raster painting toolbar. However, the raster painting tool bar won't turn on in ArcMap (it is greyed out), as the screenshot below.
How do ...
0
votes
1answer
60 views
Processing Problems with the Difference (QGIS) and Erase (ArcGIS) Tool with big data
I am struggling with processing a huge data set.
I downloaded it from a German geodata site (https://download.geofabrik.de/europe/germany.html). I downloaded the ZIP of Bavaria and clipped the eight ...
3
votes
1answer
59 views
Erase tool doesn't erase all inputs
When I execute the Erase Tool in ArcGIS it does not erase all of the features in the input class. The Input and Erase features are both polygons. I have attempted multiple times, hoping it was just a ...
1
vote
1answer
65 views
Iterating through erase features while Input feature == output feature using ArcGIS ModelBuilder?
I have a polygon which represents a large area. Smaller polygons should be used to erase pieces step by step from of the large area polygon.
For this purpose, I use the Model Builder in ArcGIS.
My ...
2
votes
4answers
184 views
Handling large datasets with Erase/Dissolve in ArcGIS (Dissolve alternative?)
I have what should be a simple problem: erase a large multipart polygon layer from a larger polygon (see below for example). However, I believe the Arc Erase tool is trying to erase each part of the ...
0
votes
1answer
38 views
In ArcGIS there is a Erase Point tool how can this be done in R
I have a SpatialPolygoneDataFrame and a SpatialPointsDataFrame I would like to erase the points inside of the polygon, Keeping only the points outside and all of the data. I am new to GIS in R moving ...
3
votes
0answers
221 views
PostGIS st_difference similar to ArcGIS Erase?
I am attempting to replicate the ArcGIS erase tool in PostGIS.
Here is the problem I am working with
Two Layers
land use land cover (150,000) multipolygon table
multipolygon soils table (30,000)
...
1
vote
2answers
63 views
Removing lakes from a country polygon [duplicate]
I have two polygon layers: one indicating countries, and other on top indicating lakes. I want to create a new layer that keeps the countries but have the lakes cut out of them. What tool do I use?
0
votes
1answer
46 views
Difference between layers using ArcGIS Geoprocessing?
I'm wondering if there is somewhere to get an output shapefile based on the difference between two layers. This would basically be the opposite of the clipping tool. for example. I have a roads ...
4
votes
1answer
278 views
Erase tool for polylines with ArcGIS Standard License
I have a very long polyline representing a pipeline. I also have another feature class with smaller polylines which are coincident with the pipeline. I am trying to cut the pipeline with the smaller ...
0
votes
1answer
329 views
PostGIS erase logic and speed
I have 2 Polygon layers. 3.5 million records of all NJ Parcels and a 1 record state wide polygon shapefile of NJ. My goal is to emulate the ArcGIS erase analysis too where I would essentially erase ...
0
votes
1answer
130 views
Adding clip function to python buffer script
I have posted my script for buffering and dissolving polygons.
Could someone help me incorporate an Erase function in order to erase the input file from the buffer?
Script:
import arcpy
infc = r'...
0
votes
0answers
99 views
Polygon Erase through PyQGIS
I'm very beginner in QGIS and I want to erase Features by using PyQGIS. I have written this code. So far, it give me the geometry of each feature polygon layer, but I don't know how to erase it ...
1
vote
1answer
137 views
Mapinfo SQL - create table that shows where a new polygon does not intersect with another
I am attempting to carry out SQL to - create a table that shows where a new polygon (Proposed BMO Overlays) does not intersect with another (Existing BMO Overlays).
I have attached an image on my Map ...
1
vote
3answers
301 views
Erasing small polygons from bigger overlapped polygons using ArcGIS for Desktop?
I have different bigger polygons (buffers) which are overlapped (A,B,C,...) and the inner smaller ones (a,b,c,...). I want to erase smaller ones from bigger ones in the way the results be A-a, B-b, C-...
1
vote
1answer
58 views
How do I get unique names for model builder outputs?
I have set up a model that erases designated restricted areas such as Flood zones, SSSI, national parks etc, each erase is linked from the output to the next erase going step by step through all the ...
3
votes
1answer
366 views
Using erase tool in Python?
I am trying to create a python scrip to batch erase shapefiles. I have created a script that works, however, I know there is a better way and I just am not good enough at scripting to figure it out. ...
3
votes
2answers
409 views
Getting rid of feature points within buffer using ArcGIS Desktop?
I've created my buffer, 10 m around surrounding streets, now I need to remove all trees (points) that are within that buffer but I'm having trouble doing so! I've tried clipping but I guess my input/...
1
vote
0answers
12 views
Erasing extent of one layer using another layer using ArcMap? [duplicate]
I have two layer files which mark the extent of some vegetation types. The base layer includes some areas which does not need to be included. The second layer is solely comprised of unnecessary area ...
2
votes
3answers
192 views
Is there a script to batch erase the equivalent of a shp to multiple other shps? (in ArcGIS)
I'm looking for a way to be able to frequently update a bunch of shapefiles (different land use and other areas). I would like to erase from them the lakes and rivers which are in another shape (hydro....
2
votes
1answer
2k views
Erasing without Erase Tool licensed? [duplicate]
I'm brand new to GIS (and this site) so bear with me if there is an obvious answer for this but I've done a lot of looking and haven't found anything that worked.
I have two polygon layers that show ...
0
votes
1answer
145 views
Using Erase tool for replacement ArcGIS for Desktop? [closed]
I have two layers (polygon type) and i want to erase the red polygon from the pale blue polygon, so i will get another polygon just without the red polygon feature.
I'm work with desktop license, so ...
0
votes
1answer
181 views
Increase speed of reverse clip (erase) for large shapefiles in R
I would like to do a reverse clip (or erase in ArcMap) from shapefiles (polygons) then to merge the two shapefiles into a single shapefile. From this post How to 'reverse clip' (erase) in R, ...
2
votes
1answer
129 views
Retain the rest of the Clip (Analysis) tool in ArcGIS [duplicate]
Which tool can I use to get or keep the rest of the output feature when I use the Clip (Analysis) tool in ArcMap?
For instance I need to calculate Blue minus Green.
Erase (Analysis) from Overlay ...
1
vote
1answer
111 views
Struggling with in_memory to erase faster
I want to delete all points inside a polygon layer:
import arcpy
import time
arcpy.env.workspace = r"E:\DensityMaps\DensityMapsTest1.gdb"
arcpy.env.overwriteOutput = True
start_time = time.time()
...
3
votes
2answers
1k views
Erasing buffer within another buffer without erasing overlapping buffers using ArcGIS for Desktop?
I'm not an ArcGis pro, so I need help on this one, and I have tried searching for answers.
I am using ArcMap 10.2.2. I don't know how to use python.
I have 6km and 12km buffers around the sites ...
0
votes
1answer
162 views
Erase polygon from line to get line using ArcGIS for Desktop?
How can I erase a polygon from a line to get the erased line?
Conceptual image below.
3
votes
1answer
7k views
Removing part of polygon from another using ArcGIS for Desktop? [duplicate]
Now I have shp of a county, which includes lake part and land part.
I only have shp of the lake part but I need the land part.
How can i get the land part?
I think there should be some tools ...
4
votes
1answer
275 views
How to cut unwanted area (polygon) using ArcGIS for Desktop?
I am using ArcGIS 10.2 for Desktop with a Basic level license.
There are two overlapping polygon. Polygon A (with line stripes) and Polygon B (in beige color). Polygon A and Polygon B is a separate ...
0
votes
1answer
150 views
Raster clipping outside area in ArcMap?
How to raster clip in ArcMap? But I need 1 raster in outside area. Because 2 raster map.
Example:
Ras1=Temperature.tif
Ras2=Error map.tif
Clip command input raster=Ras1
Output Extent= ...
4
votes
1answer
544 views
Can ogr2ogr “reverse clip” (or “clip out” or “erase” or “difference”) one shapefile from another?
Is there a means in ogr2ogr to "clip out" one shapefile from another?
I know ogr2ogr -clipsrc B.shp out.shp A.shp will remove any part of A.shp that is NOT in B.shp.
Is there an ogr2ogr command to ...
1
vote
2answers
248 views
Clip shapefile and keep the outer part of it
I have to two polygon layers, the red layer is the the bottom layer.
The second layer covers most of the bottom layer
I would like to know if there is a tool that will create a polygon layer of ...
7
votes
3answers
14k views
Subtracting (erasing) polygons from polygon using ArcGIS for Desktop?
I have two polygon layers, one is green that represents all non-public right-of-way land. I have another polygon that is just a circle with a specified radius.
I would like my output to be a polygon ...
1
vote
3answers
125 views
A mistake in very easy python code (Buffer 1 - Buffer 2- Erase 2 fom 1)
I need to make 500m rings (not full circle) around points (cities). I try to make 1. buffer: 2500 - 8500m (each 500m) and second buffer 3000 - 9000 (each 500m) and then erase 2500m from 3000m, 3000m (...
1
vote
1answer
883 views
ArcGIS Erase Function in Python
Aplogoises if this has already been solved but I'm having problems using the Erase function in ArcGIS. I have had problems using the normal function, as it throws a Error9999 Topology error amongst ...
11
votes
3answers
3k views
How to 'reverse clip' (erase) in R
A reverse clip saves only the part of your spatial object that is outside
the bounds of another object, as opposed to a regular clip which saves the
parts that are inside the other object. Here's how ...
0
votes
2answers
96 views
Erase within a feature class - Planar enforcement
I´m using ArcGIS v10 ArcInfo.
I´m working with a feature class that has 5 features which are waterdepths (1 to 5m). These features are overlapping each other. What I need, is that they are not ...
0
votes
1answer
833 views
Erasing line feature (erase feature) from polygon feature in ArcGIS Desktop?
How can I erase a "line feature" (erase feature) from a "polygone feature" (input) in ArcGIS 10?
With the tool "erase" I can only use an other "polygon feature" as erase feature for a polygon (input)...
1
vote
1answer
178 views
Calculate 2D line of site from line layer and polygon layer using ArcGIS 10
I'm trying to run an analysis where I need to clip a radiating lines layer by land features to get the maximum distance from the central point to the nearest obstacle. What I have is a large line ...
2
votes
0answers
91 views
How to erase using feature(s) within the same feature class? [closed]
I develop an application and I want to erase overlay features in a feature class in the application. I use ArcEngine 10. I don't have another layer that have erase features then I can't use erase tool ...
2
votes
1answer
552 views
Easiest way to find spatial differences between Polyline shapefiles
I run into this problem a lot. I have two polyline's and I need to test for Spatial differences in them. Usually I use Erase and I have my answer, but on this PC I now only have access to ArcGIS Basic ...
1
vote
1answer
86 views
ArcGIS - Cell Content Deletion
I have a really simple question I can't find the answer to. I'm looking to delete a range of values from an attribute table in ArcGIS 10. I'm looking for a quick way to delete about 3000 records. The ...
2
votes
2answers
951 views
Erase method using OGR
I'm trying to find the erase geoprocessing method as I am familiar with in ARC, but I can't seem to find it in OGR using Python. I have looked through the module OGR documentation but perhaps I missed ...
2
votes
2answers
329 views
Erase features from feature classes based on record ID?
This is the challenge:
I have two feature classes, which have the same number of polygon features, that when overlaid form concentric "rings." I need to erase the inner circle from the outer circle ...
17
votes
2answers
8k views
Is there a QGIS equivalent of the erase tool in ArcGIS?
Is there a QGIS equivalent of the Erase tool in ArcGIS for Desktop?
8
votes
1answer
625 views
Reduce processing time in Erase function using Arcpy in IDLE
I am processing 18,000 feature classes (saved in a file GDB), each with ~500 records (polygon features) in ocean areas, and I am running a script to remove area overlapping with the coast, using the ...
