Spatial operations extend fiona and rasterio
Project description
Geo-Sardine
Collection of spatial operation which i occasionally use
Setup
install it with pip
pip install geosardine
How to use it
Drape and spatial join
import geosardine as dine
import rasterio
import fiona
with rasterio.open("/home/user/data.tif") as raster, fiona.open("/home/user/data.shp") as vector:
draped = dine.drape_geojson(vector, raster)
joined = dine.spatial_join(vector, raster)
IDW Interpolation
import numpy as np
import geosardine as dine
xy = np.array([
[106.8358, -6.585 ],
[106.6039, -6.7226],
[106.7589, -6.4053],
[106.9674, -6.7092],
[106.7956, -6.5988]
])
values = np.array([132., 127., 37., 90., 182.])
"""
if epsg not provided, it will assume that coordinate is in wgs84 geographic
Find your epsg here https://epsg.io/
"""
interpolated = dine.interpolate.idw(xy, values, spatial_res=(0.01,0.01), epsg=4326)
# Save interpolation result to tiff
interpolated.save('idw.tif')
# The result array can be accessed like this
print(interpolated.array)
"""
[[ 88.63769859 86.24219616 83.60463194 ... 101.98185127 103.37001289
104.54621272]
[ 90.12053232 87.79279317 85.22030848 ... 103.77118852 105.01425289
106.05302554]
[ 91.82987695 89.60855271 87.14722258 ... 105.70090081 106.76928067
107.64635337]
...
[127.21214817 127.33208302 127.53878268 ... 97.80436475 94.96247196
93.12113458]
[127.11315081 127.18465002 127.33444124 ... 95.86455668 93.19212577
91.51135399]
[127.0435062 127.0827023 127.19214624 ... 94.80175756 92.30685734
90.75707134]]
"""
Geosardine CLI
You can use it through terminal or command prompt by calling dine
$ dine --help
Usage: dine [OPTIONS] COMMAND [ARGS]...
GeoSardine CLI
Options:
--help Show this message and exit.
Commands:
drape Drape vector to raster to obtain height value
info Get supported format
join-spatial Join attribute by location
idw Create raster with Inverse Distance Weighting interpolation
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