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

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1
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1answer
335 views

How to clip a shapefile to an interpolated surface (contours) in R?

R novice here, trying to work through the ever-daunting task of clipping my data. I've posted several questions regarding how to clip various types of data, so here we go with another, complete with ...
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
2answers
71 views

clip raster to polygon with 3 srids

I have 70 raster landsat images with srid: 32647,32648,32649 and want to clip raster to polygon (shapefile, srid: 4326) in postgis. I imported all raster into 1 table with parameter -s : 32648, ...
0
votes
1answer
27 views

Failing to Extract by Mask with Small Groundwater Basins?

I am using ArcGIS for Desktop. I am working with 4km resolution precipitation rasters from the PRISM website because I am trying to calculate the total annual precipitation for each groundwater basin ...
2
votes
0answers
30 views

Clip raster to new column in feature? [closed]

I'm trying to clip a raster using a feature set. I'd like to then have a new value added to a column in attribute table of the feature set based on the majority of the pixels in the raster. In this ...
1
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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 ...
2
votes
1answer
61 views

Clipping DEM / DTED data selecting by extent

similar to a few queries but really struggling to clip a DEM file from say USGS. Going to Raster > Extraction > Clipper and then "select the extent by drag on canvas", does not work. The process ...
6
votes
2answers
420 views

Clipping vs Intersecting

I was curious why clipping shapefiles was just so difficult and whether it was different to intersecting shapefiles? You will see from one my questions that I gave up trying to clip a polyline with a ...
4
votes
2answers
155 views

How to do ArcMap style clip in QGIS

I would like to know if it's possible to do ArcMap style clip with QGIS. The operation I'd like to do is to clip overlapping polygon(s) in the same layer with the selected polygon. For example: I ...
0
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2answers
40 views

Viewing result query in PostGIS? [duplicate]

I have some queries which clip rasters from polygon. So how I can see my result query in postgis or How I can check my query true or false ?
5
votes
2answers
241 views

Is it possible to clip a shapefile to an image() in R?

I am working on mapping some netcdf data in R and have been having a tough time trying to perform a clip with an imported country shapefile that I'm using. Here is my question from yesterday. If you ...
1
vote
1answer
96 views

How to clip a spatial polygon to a large matrix (that is plotted as a large trellis, originated as a netcdf) in R?

I would first like to issue a disclaimer that I am a novice at GIS, and I have only just begun learning R. So if I use the wrong terminology for something or my question is confusing, please help ...
1
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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 ...
0
votes
0answers
67 views

Trimming downloaded Worldclim Climate Projection Layers to specific area in QGIS for use in Maxent Program?

I am very new to QGIS and modeling. I have downloaded many Future Climate prediction files(GeoTiff) from Worldclim. I only need to use a small portion of the globe, but they do not allow for the ...
1
vote
1answer
30 views

Raster turns into 4 separate rasters after clipping

I have a raster with a .sid extension. After I clip my raster, it produces 4 separate new rasters (3 of which are black and white). When I delete any of the Black and White rasters, the clipped ...
0
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0answers
23 views

What is the easiest way to export tiles from a raster predefined shapefile extents? [duplicate]

I have one large raster that I need to clip according to a grid defined within a shapefile. Below is an illustration: What would be the most efficient way of doing this with either ArcGIS 10.0 or ...
0
votes
2answers
239 views

Python buffer points and clip with line-segment (OS Open Roads in BNG) [duplicate]

I have an array of points (in latitude, longitude coordinates) which I would like to buffer and dissolve (into a polygon) and then intersect the Ordnance Survey Open Roads (projected in BNG) with that ...
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 ...
1
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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
1answer
63 views

Can I clip a georeferenced tif to a shape file?

If I import a tiff file of a zoning map for a city and then georeference it to a shape file of the city boundary, is it possible to clip the georeferenced tiff file to the city boundary shape file? I ...
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 ...
3
votes
1answer
111 views

Clipping points by a polygon attribute in QGIS

I am trying to clip a point layer with a polygon layer. My polygon layer has multiple polygons (e.g. country with different states). I am wanting to clip the point layer based on the different states ...
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 ...
3
votes
1answer
177 views

Clipping raster-image increases file size

Working with QGIS 2.4.0 Chugiak I have a question regarding the clipping of raster images. I have an aerial picture that I want to clip using the extents of a shape file. So far so good, I used the ...
2
votes
2answers
282 views

QGIS 2.10.1 Clipping Algorithm Results In Empty Layer

I apologize for the redundancy of this issue, but I have explored all the information I could find over the past couple days and have yet to find a solution to what seems to be a very simple task. I ...
2
votes
1answer
37 views

QGIS: How to scale attributes when clipping / intersecting

I'm working on a project involving a ratio of frequent travellers / population divided in Forward Sortation Areas from Canada Post (FSAs are the first three characters of a postal code: A1A). I ...
0
votes
2answers
117 views

Why are my raster images losing quality when they are clipped?

I'm using the ArcGIS data management clip tool for raster, a jpg file. It is being clipped with a polygon. After the clip is successful, the clipped image is appearing in lower quality and the colors ...
1
vote
1answer
133 views

Clipping a coloured raster with polygon shp in gdalwarp changes original values, why?

I need to clip my raster based on a polygonal shapefile, basically leave raster values inside the polygon shape (inside red perimeter in the figure below) as shown here: Therefore, I use: gdalwarp ...
4
votes
3answers
363 views

Python GDAL/OGR: How to Erase features?

I have a big round polygon feature (5km diameter) and a small round polygon feature (3km diameter) that I would like to clip with Python GDAL/OGR to obtain the "donut". Once this is done, I will apply ...
0
votes
1answer
89 views

Clip an interpolated raster using points or create an extent polygon from points using ArcGIS for Desktop

I have a point feature class that I have imported from lat longs in an Excel spreadsheet. I have created a raster image from these points however areas outside of the point set extent are interpolated....
0
votes
1answer
33 views

Fuzzy Clip Layer to maintain feature geometry

I have a number of large datasets that I want to clip to a specific area to make more manageable and carry out further processing. I have a polygon outline of my AOI, however I don't want to hard cut ...
0
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0answers
63 views

Showing two locations in map closer to each other than in reality for space issues

I'm working on ArcMap 10.2.2. I need to print two maps for three municipalities, a city (Florence, Italy) and two smaller towns (Signa and Impruneta) in its vicinity. One map with the city and the ...
0
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0answers
40 views

Clipping only overlapping datasets using Iterator function in ArcGIS ModelBuilder?

I've create a geodatabase with about 100 feature classes for my home province. I want to be able to specify a project extent and clip the feature classes to that extent and save into a new ...
0
votes
0answers
83 views

Avoiding pixelation of results following Extract by Mask or Clip tools?

I need to clip my IDW results to the boundaries of my survey areas. However, whenever I use the Clip or Extract by Mask tools, my results become pixelated and lose accuracy. Is there some way that ...
1
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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
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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 ...
3
votes
2answers
195 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
0answers
25 views

Is it possible to set up the atlas coverage layer to automatically clip other layers contained in the project?

Lets say I have two layers, one with county limits and another with roads for that same area. I'm trying to set up an atlas with counties as the coverage layer, so that I get a set of maps, one for ...
1
vote
1answer
66 views

Percent total from postgis clip

How would I calculate the percentage of streets that have sidewalks summarized by census tracts using PostGIS. My sidewalks file has an id that links it to its adjacent street and I've worked out how ...
0
votes
0answers
27 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: ...
1
vote
1answer
45 views

Clipping features

Using ArcGIS 10.3 - I have a large polygon file that shows slope in 10-increment categories (0-10, 10-20, etc.) that I have clipped to parcel boundaries to show how much of a an area (acreage) in each ...
3
votes
2answers
446 views

Snapping raster grids in R

I am trying to align two raster grids in R. Once aligned I would like to be able to add them together. I have tried to check whether making a stack would work: grid_snap <- stack(habi_sdw, ...
4
votes
1answer
222 views

Clip raster by raster with data extraction and resolution change

I need to stack multiple maps (tif) together and clip them all according to extent of one small raster map (second raster at the top of picture below). However, the size of pixels in each map is ...
0
votes
1answer
68 views

Clip lines by overlapping polygons

I want to cut a line shape into parts by polygon areas. No problem so far. But the polygons overlaps each other at the border. I need one line result for the whole area of every polygon. Any ideas for ...
1
vote
1answer
91 views

Erase shapfile (polygon) area from GeoTIFF

I've been reading several posts to do so and one option would be to use gdalwarp -cutline, but I would need to keep what it is NOT inside the polygon area. GDAL or any command-line tool does that? ...
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?...
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 '...
1
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2answers
117 views

Clipping polygon layer by raster value

I've seen many ask how to clip a raster via a polygon mask but have yet to find the opposite operation. How does one clip a polygon layer via raster? ta Specifically how does one clip a polygon layer ...
1
vote
1answer
83 views

In PostGIS: How to delete completely overlapping polygons?

I would like to eliminate overlapping polygons from a table that is often updated with new polygons, but only if a certain attribute has a higher value. If this higher-priority polygon only partly ...
1
vote
2answers
306 views

Clip Raster to Polygon Grid?

I have a polygon grid file and want to clip my raster imagery to the shapes outlined by it. I am using arcmap and was wondering if there was a tool directly for this? I would like to also be able to ...