Geographic Information Systems

Questions tagged [spatial-filter]

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Spatial filtering technique for Image enhancement

In Spatial filtering, the output image has fewer rows and columns than the input image because it has an unfiltered margin corresponding to the top and bottom rows and the left and right columns of ...
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39 views

Designing a Low Pass Filter

How can I design a similar Low Pass Filter as given below which takes into account only 4-connectivity and ignores the pixels that complete 8-connectivity?
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1answer
25 views

Create feature collection of polygons' centroids in GEE

I am trying to determine the distance between province centroids and a polygon. Based on this past post, I was able to store the geographic coordinates of the province centroids into their feature ...
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1answer
29 views

Is there a way to filter results in the attribute table of a point shapefile by the extent of a second polygon shapefile in QGIS?

I am currently trying to temporarly filter data with in the attribute table to a confined area defined by a second polygon shapefile. The data set to be filtered consists of 100s of points that extent ...
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21 views

Stitch together images taken at similar times from different satellites

I assume this is a very common problem, but I don't know where to start. Given two Google Earth Engine image collections (both containing a timeseries of images and multiple scenes), how can I ...
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2answers
176 views

Does ArcPy (Standalone) have option like Spatial filter?

I want to get the polyline features intersecting with a polygon geometry and having a particular field values in ArcPy standalone script. There is another link for similar subject but it is not for ...
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474 views

Applying low pass/median filter over DEM in GeoTIFF format using ArcGIS Desktop?

I want to apply a median/low pass filter (over a few hundred kilometers) over my DEM to reduce the noise. I tried ArcGIS focal statistics tool but no luck. I got a blank GeoTIFF file. How can I do it ...
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425 views

Select by Location (Between two layers) - ArcObjects C#

I have two Point Feature Classes - Say FC1 and FC2 - added in the current map I want to Select Features from FC1 that intersect with Features of FC2 This can be easily done with ArcMap's Select By ...
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243 views

Framing of WFS GetFeature request using polygon intersect filter

I am trying to frame a Web Feature Service GET Request applying the INTERSECT filter but I am getting the following error. : <ows:ExceptionReport xmlns:ows="http://www.opengis.net/ows" version="1....
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1answer
1k views

Looking for documentation of OGR SetSpatialFilter

I need documentation on how to apply a spatial filter (using OGR's SetSpatialFilter). Setting the feature layer by which another layer should be filtered seems rather straightforward. But, how do ...
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570 views

What is the correct way to apply a SpatialFilter on a Layer using GDAL & Python?

I'm looking at Selecting those Polygons in One Shapefile which are contained inside the Polygon which is stored in another Shapefile. I have managed to make some progress, and I have modified the ...