geo_dd
  • Member for 6 years, 11 months
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GRASS 7.1 (dev.) i.landsat.toar error
6 votes

I think that for the input file you don't use the number of band. Your input must be LC81700832014160LGN00_B and then the channel number automatically filled. You can try this. i.landsat.toar input=...

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Add image not providing north arrow directory in QGIS?
4 votes

When you choose "add image" you have to drag the cursor and you will get something like pic.1. Then, to the right side there is search directories you click on it and waiting to open an then you can ...

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Keep "no data" tiles with r.reclass rules
3 votes

Perhaps another way is to set all your values to a text like you mentioned and then for the values you want to keep same (no data) you can use *. e.g: 1 thru 5 = 2 3 thru 8 = 10 * = *

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What are the most effective methods for monitoring changes in polygon layers over time
Accepted answer
1 votes

Aaron is right about raster- based analysis. There are a lot of methods for change detection.One very popular method is the Post-classification Comparison. I think the effectiveness of a method is ...

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Converting between CRS in degrees to meters in Qgis 2.10.1
1 votes

I am still not sure what you want for prj. This is a simple example to save a file in prj you want. I have a file in EPSG:4326 and I want it in 2100 (in meters). From my layer i choose Save as and ...

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What logical function should i use to do a union of two raster files in GRASS?
1 votes

I think is better to use r.series. You have 4 files with different values (as I can see). You have to choose the function according to what you want to have. I suppose you want the files with the ...

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Error in executing commands in GRASS GIS
1 votes

Well this is confusing. Try to use short names because sometimes long names might cause you problems. eg. "dem_map-AlbSRTMdem" don't use "-" in names. Try "_" and make names shorter. Perhaps that is ...

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new layer from calculations with fields of other layers in QGIS
1 votes

Perhaps the calculator is your answer. From "Raster-Raster Calculator" you can create new layers from others. For the the intersection you can use the "AND".

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Where can I get the Cadinput plugin for QGIS
1 votes

I think the repository you are looking for is https://github.com/olivierdalang/CadInput. Plugins-Manage and install plugins and you can give the repository there in order to install and use this ...

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Addon installation problem on GrassGIS
0 votes

Thank you markusN for your interest! It worked. Because of the problem with the plugin, I did the viewshed analysis through command shell. First I saved my points in ascii with the command: v.out....

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Free download NDVI images or raw satellite images for Sri Lanka?
0 votes

You can try USGS http://www.usgs.gov/. You can create an account for free and then through Earth Explorer http://earthexplorer.usgs.gov/ you can search and download images from different satellites (e....

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How to cut a raster into smaller, equal area parts?
0 votes

Do you need something like Raster-Extraction-Clipper plugin?? you can give the polygon file as mask layer or you can "play" with the extent (for the parts you want to cut).

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