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

learn more… | top users | synonyms

1
vote
1answer
98 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 ...
0
votes
1answer
34 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
0answers
51 views

How to raster clip in outside 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= ...
1
vote
0answers
148 views

Using the esri analysisTool Erase class in C#

I am trying to use eSRI.ArcGIS.AnalysisTools.Erase class but I keep getting blank layers. I can get the layer that can be used for the input and the layer for the erase. I don't really understand the ...
0
votes
0answers
18 views

R: Topology Exception Error

I'm trying to do the gDifference between two polygons, but I was getting an error: Error in RGEOSBinTopoFunc(spgeom1, spgeom2, byid, id, drop_not_poly, "rgeos_intersection") : TopologyException: ...
0
votes
0answers
23 views

Assign a dummy value for removed features in a Polygon-Grid

I want to calculate the entropy index for landuses classes for an area based on a 100m Polygon Grid. I did find an existing toolbox that does all the required calculation. Input features are the 100m ...
0
votes
0answers
130 views

erase a “line feature” (erase feature) from a “polygone feature”

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 ...