To limit or reduce the extent of one dataset by the extents or boundary of another.

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5
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174 views

Is there a limit to the number of polygon points you can export to CSV in QGIS 2.4?

Using QGIS 2.4 I am currently importing a csv file with ~30,000 polygons (polygons in WKT format). I also have a United States shapefile. I have used the Clip function to get only the polygons that ...
4
votes
0answers
31 views

Changes to Clip and Intersect between 2.8 ltr and 2.12 for lines

Clip and Intersect in 2.8 yield the result as expected. When using 2.12 the shape file is empty. To test this I have run both versions on Linux (Opensuse Leap) and OSX. The results are consistent. ...
4
votes
0answers
69 views

Can I clip a geodatabase vector layer in QGIS?

I have a Vector layer loaded from a .gdb (geodatabase directory). I'm seeing my contour lines fine. I've drawn a polygon on top of the area I want to crop on a new layer. I select Geoprocessing ...
3
votes
0answers
71 views

Clipping raster with Postgis raster

I'm using Postgis 2.1.5 on Ubuntu 15.04. In my system there is a second disk mounted with the raster data as /media/name1/data/rasters/*.tif. The *.tif are good looking when I watch the metadata with ...
3
votes
0answers
43 views

How to calculate average value of a raster, that is clipped by multiple polygons?

I am using QGIS 2.12.0. I have a raster of coherence value (SAR interferometry) and a land use shape. I wish to calculate mean coherence value for those areas with a specific land use. I split land ...
3
votes
0answers
180 views

How to calculate areas in raster files

I got three files. The first is a shape file for country boundaries and the second and third are two raster files with the global land covers for 2005 and 2009. I'm thus encharged to calculate the ...
2
votes
0answers
31 views

QGIS clipper taking forever

As the project requires, I built virtual raster catalog merging two raster DEM files. Because I don't want to use the whole surface of the new Virtual Raster, I went on to clip a desired rectangle. ...
2
votes
0answers
15 views

units for gdalwrap output extent

I am attempting to write a small bash script that will mass process a large number of raster .tif files. It should do the following: Clip to a smaller extent Reproject to UTM This is what I have, ...
2
votes
0answers
40 views

Using ogr2ogr for clipping vector files

I am looking for alternative (more efficient) methods for clipping large feature class datasets. When using the 'Clip' tool in ArcGIS, often times the tool will crash after many hours of processing. ...
2
votes
0answers
48 views

Clipping two shapefiles results in missing features in QGIS?

I want to clip a shapefile to fit another and when I do parts of my map end up missing. Any thoughts? (Clipping census shapefile (blue) to a custom shapefile (grey))
2
votes
0answers
164 views

How to use more cpu while processing in qgis

I'm trying to do some clip process with a quile large layers but the process is too slow. When I see the task administrator, just around 28% of the cpu is being used. I've tried with 32-bit and 64-...
2
votes
0answers
104 views

Error when I try to convert Corine Land Cover 2000 tiff to shapefile in QGIS 2.10.1 or clip CLC2000 by a polygon

I want to clip Corine Land Cover 2000 tiff by a polygon or to convert it to shapefile in QGIS 2.10.1. So far I have tried the following always getting an error message that 'ascii' codec can't encode ...
2
votes
0answers
34 views

Clipping street layer with district layer in QGIS?

What I am trying to do is clip a streets layer within a district using Qgis. They are in different CRS's and I've tried saving them into the same CRS. I right click both of the layers and in the ...
2
votes
0answers
40 views

Clip feature according to its areas

I have a layer that has several overlapping areas (coming from CAD). So usually I do a "SORT" (tool), so I can view all the features. However, I wonder clip a shape according to their areas, it's ...
2
votes
0answers
47 views

Clip and Zip Coordinate system options Geocortex

I have the standard geoprocessing service, Clip & Zip, which references a spatial reference folder containing various coordinate systems (in prj). The service works in geocortex via the standard '...
2
votes
0answers
123 views

clipping raster changes raster values?

I am working with BIOCLIM temperature/precipitation layers and I have noticed that when I clip the global raster down to a specific region, something happens and the raster value at a specific point ...
2
votes
0answers
42 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 ...
2
votes
0answers
237 views

How to clip a big shapefile from another shapefile's extent

I am working on mangroves in Sundarbans (Bangladesh / India), using Landsat pictures. I need to equalize them in reflectance, before classification, for the evolution of the biomass in this region. I ...
2
votes
0answers
65 views

Thiessen polygons extend outside of extent of projection

I'm working on a geological project on the past position of continents (in ArcMap 10 Service Pack 5, build 4400). The tool I'm creating in Model Builder uses Create Thiessen Polygons and all input ...
2
votes
0answers
125 views

Consistent errors with flow accumulation raster from Hydro1k

I'm working with bioclim and hydro1k variables in ArcMap (10.2.2), ultimately with the goal of doing niche modeling. I've got all my h1k variables in their original formats (Lambert Azimuthal Equal ...
2
votes
0answers
86 views

What are my options to handle Raster Clipper ERROR 6: ADRG driver doesn't support 4 bands?

I have a tif file which contains 4 bands (RGB + alpha). The clipper does not work and gave me the message below; ERROR 6: ADRG driver doesn't support 4 bands. Must be 3 (rgb) bands. Any patch file ...
2
votes
0answers
112 views

QGIS 2.4 Clip function in Raster layer Style Single band pseudocolour not working?

I've been using QGIS for a while and recently upgraded to 2.4, but now find that displaying raster layers is difficult. In particular, the clip function (tick box bottom left of "Style">"Singleband ...
2
votes
0answers
110 views

Clipping and reprojecting in one process for modelbuilder // “Save raster layer as” … in modelbuilder

I want to build a model in the QGIS Modelbuilder. First it should do a clip. Afterwards it should be reprojected (from Geographic WGS84 Coordinates to Gauss-Krüger). I only see one way to do this: ...
2
votes
0answers
40 views

QGIS is locking the clipboard from other application? (SitesPlus)

We are starting to use QGIS along with Sales Forecasting software Sites Plus by Gravitec. An ugly problem just popped up: Whenever QGIS is open, any attempts to calculate a data table in SitesPlus ...
2
votes
0answers
84 views

Why does my clipped raster seem to be slightly moved?

I'm having some problems with clipping rasters. I started clipping my raster using extents, but I saw that the clipped raster is different from the original raster. I created a virtual raster to use ...
2
votes
0answers
136 views

Can I clip raster maps by vector boundaries on fly while serving them via geoserver?

I have a lot of georeferenced raster topographic map sheets which contain not only map itself, but some sketch elements like legends, stamps outside the map frame. I want to make seamless coverage ...
2
votes
0answers
60 views

Quick Way to Finish Area of Interest GIS Data Export Requests

I would say that after custom map creation, data requests are the most frequent GIS requests I have on a daily basis. Now they don't take long, but they add up and I have much more important work to ...
2
votes
0answers
542 views

Clipped raster leaks outside polygons

I am trying to clip a raster (DEM) with a polygon layer in ArcGIS10.1, using Data Management>>Raster>>Clip. Basically the clipped raster has many pixels outside the polygon boundary, mainly for thin ...
2
votes
0answers
817 views

Why does Clip analysis generate (some) empty output?

I am running a script that is working (see below) - it pulls a file from a folder, clips from that file based on an intersection with another file, and creates a new shapefile in a new folder. It has ...
2
votes
0answers
697 views

Output raster extents when using the Spatial Analyst Extract By Mask tool to clip a raster

I am using ArcGIS 9.2 and I have a simple python script that does the following : Loop over a polygon feature class (shown in red in the image below) For each record, create a feature layer to ...
1
vote
0answers
22 views

Compressing clipped raster in QGIS?

I am using QGIS: Raster/Extraction/Clipper I have a raster image (Sentinel 2 satellite 3 bands combination, total area: 1,000,000 hectares, file size 740 MB) from which I clip a certain area, which ...
1
vote
0answers
48 views

How can I prevent gdal_translate from rounding coordinates when clipping?

I want to clip a raster (a VRT of several Ascii files) to a set of coordinates. Ideally I'd like to use gdal_translate to do this, but I only get an accurate result when using gdalwarp. gdal_translate ...
1
vote
0answers
31 views

Error executing algorithm Clip raster by mask layer 'NoneType' object has no attribute 'GetGeoTransform'

Processing modeler: GDAL "clip raster by mask layer" tool I have a raster layer that I wish to be clipped by a polygon layer (buffer zone). I intend to repeat to process many times in a more ...
1
vote
0answers
30 views

Removing overlap within multipart polygon in ArcGIS for Desktop?

ArcMap 10.1 SP 1 License: Advanced I am attempting to remove overlapping portions of a multipart without going through the steps exporting or creating a layer from each part and clipping individually....
1
vote
0answers
46 views

Clip raster using a shapefile of 5500 polygons

I have a nightlights raster file of India, and i want to clip it using the block shapefile for India. There are 5500 blocks. But I can't find a unique attribute(except for serial no.) to clip the ...
1
vote
0answers
24 views

Clipping vector polygons by previous vector polygons in same layer in QGIS

I have extremely large datasets as vector polygons in single layers. The polygons are in an order. I want the previous ordered polygons to clip the later polygons. Therefore, once an area has been ...
1
vote
0answers
53 views

Clipping raster brick object in R

I have MODIS NDVI TIFF files for a year I want to first clip it with a irregular polygon (not by its extent only) of my study area and save it as a multi band raster in TIFF format The TIFF image are ...
1
vote
0answers
23 views

Clip Layer Stack

I layer stacked the Landsat 8 Bands (1-7) in QGIS and made a polygon shapefile. Every time I try to clip my layerstack with the Mask layer I just get a completely black output raster. I want to use ...
1
vote
0answers
30 views

Automating selection of input files based on names in ArcGIS ModelBuilder?

I am trying to clip watershed polygons contained inside a field polygon. I have 388 field polygons named from MFID0 to MFID388 and I have watershed polygons for respective fields named from merge0 to ...
1
vote
0answers
33 views

I clip a raster with a vector mask in qgis, the result is correct but its a little bit of, why is this?

On one side the result is "bleeding" over the vector on the other side its more than one raster pixel from the vector on the inside. How to correct this? http://i.imgur.com/d0v6mqt.png http://i....
1
vote
0answers
51 views

Clipping lines not working in QGIS

Trying to clip a line layer with another renders an empty shapefile. I've looked through older threads and have made sure that the CRS is the same (they do align) and that I've converted multipart ...
1
vote
0answers
71 views

clip raster with polygon in postgis

I am newbie in postgis. I have a raster landsat images in table "ras" and a polygon shapefile image in table "shp". Now I want to clip raster with polygon using postgis, but I have a problem The ...
1
vote
0answers
37 views

Black image after clipping with ArcGIS for Desktop?

I am trying to clip my tif image but i got it readable only in arcgis, and when i open the folder where it is recorded i found it black and cannot open it or read it with Autocad .. what do you think ...
1
vote
0answers
98 views

Clipping polygon using QGIS?

I want to clip a polygon using Qgis "clip" tool. The problem is that the resulting polygon presents areas that where not clipped off. The first screenshot shows the layer I want to clip using the ...
1
vote
0answers
31 views

Clip Categorized Polygon with another Polygon

Ok, so first off, I've gone through the forum, and looked at every post that sounds similar. They have all been solved, but none of the solutions have worked for me. Basically, I have created a ...
1
vote
0answers
36 views

Is it possible to interact with a running instance of QGIS from the command line?

I just started looking at QGIS on MacOSX. I installed the MacPorts package and found the executable: /Applications/MacPorts/QGIS.app/Contents/MacOS/QGIS* Unfortunately it appears that the command ...
1
vote
0answers
87 views

Clip layout view to output graphics extent using python

I need to implement, within this very simple piece of code, the option that replicate the "Clip to output graphics extent" available from the ArcGIS 10.0 Export Map UI standard command. Is it possible?...
1
vote
0answers
37 views

Clip only works on some areas, and not on others, despite being from the same dataset

I have a shapefile of provinces (nxprovincias), and another shapefile of small, disconnected areas ("protected areas") that overlaps with the provinces. I want to easily calculate the total area of ...
1
vote
0answers
60 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
42 views

Script for batch-clipping or masking rasters in R

I need a script that can do following batch process for all files in a folder: a) Clip or mask each raster layer (LAI product from MODIS MCD15A3) with a vector layer (vegetation types obtained from ...