The mask tag has no wiki summary.
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How do I calculate acreage grouped by owner, masked by a poly?
I have statewide land ownership data and have created a mask to project ownership for only one county. I need to calculate the acreage of each owner within that county. Is there a quick way to ...
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2answers
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How to modify raster pixel inside a polygon?
I would like to set to novalue all the pixels of my raster inside a polygon.
I'm trying the gdalwarp command line with -cutline option.
But this command extract the values of my raster inside the ...
5
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3answers
374 views
How do I use polygons to apply a unique value to all raster cells within those polygons?
In ArcGIS 9.3, I have a raster file that I would like to "mask" with polygons, giving a single value to all the raster cells that overlap the polygons. How can I do this? Here's a screen shot, where ...
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1answer
164 views
looping the mask in python for arcgis 10
I am working with raster data on a worldwide level with a resolution of 30 arc seconds.
I need to export the data into a table format but given the high resolution you can not run the "Sample" ...
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254 views
How to create mask bands in GDAL and Python?
I have small program in Python that uses gdal and numpy to perform a logarithmic scale of some data into the RGB 0-255 range.
Now this input data has a nodata value set to mask the valid values, and ...
7
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1answer
244 views
Reduce extent of raster processing
I need to reduce the processing extent of my raster by some sort of automatic procedure in python. Currently the borders of the dataset I've been using has anomalies (due to the classification of the ...
