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Results tagged with raster
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user 2471
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
3
votes
How do I calculate a weighted centroid with respect to a raster, e.g. population weighted ce...
The following code is my attempt at replicating the now removed $$XMap and $$YMap grid expressions in python in ArcGIS 10.0:
import arcpy
import numpy
# reference to the weight raster
weightRas = arcpy.Raster … , specifying the lower left corner of the
# raster as well as cell size for x and y, which we pull from our weight raster
xMap = arcpy.NumPyArrayToRaster( xCoords, arcpy.Point(weightRas.extent.lowerLeft.X …
- 1,327
8
votes
2
answers
7k
views
How do I calculate a weighted centroid with respect to a raster, e.g. population weighted ce...
In ArcGIS 10.0, how do I calculate the weighted centroid of a collection of polygons, where I want the weight to be a raster layer. … In particular I am using a raster of population counts and would like to generate the population weighted centroid as a result. …
- 1,327
3
votes
2
answers
2k
views
How do I only view selected rasters from a geodatabase raster catalog in ArcGIS 10.0
I am using a geodatabase raster catalog to hold raster files for multiple countries, mostly for the sake of organization. … Also, for spatial analysis, I would want the selected raster to be the only raster operated on.
How do I accomplish this? …
- 1,327
5
votes
3
answers
2k
views
How can I have ArcGIS not automatically add raster clip output from Python window to the cur...
doing this in the Python window using the following as the main processing function:
arcpy.Clip_management( inputRasterFilename, "#", outputRasterFilename, "shapefile" )
Basically I want to read the raster …
- 1,327