Operation of removing unwanted details from data, data smoothing algorithm for clearing the general view. For a raster, it is a processing window where the cell values are changed.
1
vote
3answers
2k views
OpenLayers WFS protocol: work with filters if the protocol is defined out of layer constructor
follow question:wfs-load-feature-check
the scenario is: i am trying to load a WFS layer, since it takes a while to load all features, I want to give user a notice while waiting for response. the ...
11
votes
2answers
2k views
How to filter big datasets in Geoserver WMS?
Is there a good way to filter datasets with approx 50,000 features in Geoserver? I'd have to select between 100 and 200 features based on ids. These ids are different from the FeatureIds. Couldn't ...
8
votes
1answer
472 views
How to apply a Majority filter in GRASS GIS?
I was wondering if someone could help me write a majority filter for GRASS GIS. I have this map (see below) which I need to run a filter over to make the red areas a bit more dominant. I know I can ...
6
votes
1answer
648 views
How to filter wrong GPS readings?
I have absolutely no experience with GIS, it just so happens that one of the hobby projects I am doing at the local hackerspace includes tracking a model boat with a GPS... I hope this is the right ...
3
votes
1answer
697 views
How to filter features in a layer?
I am trying to display certain features in a shapefile-based layer using QGIS. I have found the subset function in the properties panel, which does exactly what i want, but is too tedious given that I ...
3
votes
2answers
467 views
What is the best approach to using IQueryFilter.WhereClause in ArcObjects?
What is your preferred / best approach to using IQueryFilter.WhereClause statements in ArcObjects (e.g. when selecting features by attributes)?
You need to check the source type (shapefile / personal ...
1
vote
1answer
344 views
Filtering a raster by pixel value with GDAL
I have downloaded Globcover data in GeoTIFF format. I want to create a new grid which only has values where the Globcover data (the only band in the TIF file) has one certain value (==190).
Can I do ...
