Questions tagged [erase]

The action of removing data attributes or features through the processes of positive or negative selection and deletion.

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20
votes
2answers
11k views

Seeking QGIS equivalent of ArcGIS Erase tool?

Is there a QGIS equivalent of the Erase tool in ArcGIS Desktop? The Erase tool: Creates a feature class by overlaying the Input Features with the polygons of the Erase Features. Only those ...
14
votes
3answers
4k views

Reverse clipping (erasing ) 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. ...
10
votes
4answers
42k views

Cutting features to do opposite of clipping in ArcGIS Desktop? [duplicate]

What´s the easiest/smartest way of getting the opposite output of the clipping tool? I just need the area of feature A1 which is not covered by feature A2 in a new Layer/File. Now, I get the result ...
8
votes
1answer
703 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 ...
7
votes
3answers
18k 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 ...
6
votes
5answers
2k views

erase one line layer by another line layer

I keep on having this issue and I can't find the "perfect answer": First of all, I work in ArcGIS 9.3.1. I have 2 layers: roads1950, roads2000. I need to make a layer with roads which were built/...
5
votes
3answers
1k 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 ...
4
votes
1answer
460 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 ...
4
votes
1answer
297 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 ...
3
votes
2answers
642 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/...
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 ...
3
votes
1answer
9k 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 ...
3
votes
1answer
166 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 ...
3
votes
1answer
521 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
0answers
401 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) ...
2
votes
1answer
3k 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 ...
2
votes
2answers
1k 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
1answer
475 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 ...
2
votes
3answers
263 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
258 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 ...
2
votes
2answers
397 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 ...
2
votes
4answers
397 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 ...
2
votes
1answer
596 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 ...
2
votes
0answers
114 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 ...
1
vote
2answers
359 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 ...
1
vote
2answers
67 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?
1
vote
2answers
7k views

Removing overlap in raster using Erase command line?

I am trying to erase a raster and is there a erase command for the Raster side? I am using ArcGIS 9.3.1. I have 2 rasters that are in the Landcover and there is overlap in between and would like ...
1
vote
1answer
119 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() ...
1
vote
1answer
116 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 ...
1
vote
1answer
987 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 ...
1
vote
1answer
410 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 ...
1
vote
3answers
454 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
149 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 ...
1
vote
1answer
110 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 ...
1
vote
1answer
184 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
1answer
239 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, ...
1
vote
3answers
130 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
190 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 ...
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 ...
1
vote
2answers
72 views

Getting Erase ExecuteError 999999?

I've made an arcpy script which worked last week, but I placed it somewhere different on my computer. I've made sure all the source files etc. are connected. However now I keep getting an error ...
1
vote
0answers
13 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 ...
0
votes
3answers
511 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
62 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 ...
0
votes
1answer
193 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
1k views

Failed to delete a domain from the database

I am trying to delete a domain I am using from ArcCatalog -> Feature Class Properties-> Subtypes-> Domains. But when I try to do that I get this error message: "Failed to delete a domain from the ...
0
votes
1answer
32 views

Erasing part of line vector outside raster region using GRASS?

I need to delete all the vector 'part' that it's outside the yellow raster region. How can I do it?
0
votes
1answer
24 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 ...
0
votes
1answer
138 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 ...
0
votes
1answer
61 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 ...
0
votes
1answer
189 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'...