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Tools for working with Geographical Information System Rasters

Project Description

The Georasters is a python module that provides a fast and flexible tool to work with GIS raster files. It includes tools to

  • Given a point (lat,lon) find its location in a raster
  • Aggregate rasters to lower resolutions
  • Align two rasters of different sizes to common area and size
  • Get all the geographical information of raster
  • Create GeoTiff files easily
  • Load GeoTiff files as masked numpy rasters

Install

pip install gisrastertools

Example Usage

from gisrastertools import *
# Get info on raster
NDV, xsize, ysize, GeoT, Projection, DataType = get_geo_info(raster)

# Load raster
data = load_tiff(raster)

# Find location of point (x,y) on raster, e.g. to extract info at that location
col, row = map_pixel(x,y,GeoT[1],GeoT[-1], GeoT[0],GeoT[3])
value = data[row,col]

# Agregate raster by summing over cells in order to increase pixel size by e.g. 10
aggregate(data,NDV,(10,10))

# Align two rasters
data2 = load_tiff(raster2)
(alignedraster_o, alignedraster_a, GeoT_a) = align_rasters(raster, raster2, how=np.mean)
Release History

Release History

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0.5.8

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0.5.7

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0.5.6

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0.5.5

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0.5.4

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0.5.3

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0.5.2

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0.5.1

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0.5.1a0

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0.5

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0.4.1

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0.4

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0.2

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0.1.20

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0.1.19

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0.1.19rc0

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0.1.19a0

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0.1.18

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0.1.17

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0.1.16

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0.1.14

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0.1.13

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0.1.12

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0.1.10

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0.1.4

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0.1.3

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0.1.2

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0.1.1

This version
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0.1

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
georasters-0.1.tar.gz (18.8 kB) Copy SHA256 Checksum SHA256 Source Dec 2, 2014

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