Make web requests to a ResonantGeoData instance.
Project description
rgd_client - ResonantGeoDataClient
The rgd_client Python package allows users to make web requests to a ResonantGeoData instance within a Python script.
Installation
pip install rgd-client
Usage
Search and display results
import json
import matplotlib.pyplot as plt
import numpy as np
from rgd_client import Rgdc
def plot_geojson(gjs, *args, **kwargs):
points = np.array(gjs['coordinates'][0])
return plt.plot(points[:,0], points[:,1], *args, **kwargs)
client = Rgdc(username='username', password='password')
bbox = {
"type":"Polygon",
"coordinates":[
[
[-105.45091240368326,39.626245373878696],
[-105.45091240368326,39.929904289147274],
[-104.88775649170178,39.929904289147274],
[-104.88775649170178,39.626245373878696],
[-105.45091240368326,39.626245373878696]
]
]
}
q = client.search(query=json.dumps(bbox), predicate='intersects')
for s in q:
print(s['subentry_name'])
plot_geojson(bbox, 'k--', label='Search Region')
for s in q:
plot_geojson(s['footprint'], label=s['subentry_name'])
plt.legend()
plt.title(f'Count: {len(q)}')
Inspect raster
import imageio
from io import BytesIO
import requests
raster = requests.get(q[0]['detail']).json()
plot_geojson(bbox, 'k--')
plot_geojson(raster['outline'], 'r')
load_image = lambda imbytes: imageio.imread(BytesIO(imbytes))
count = len(raster['parent_raster']['image_set']['images'])
for i in range(count):
thumb_bytes = client.download_raster_thumbnail(q[0], band=i)
thumb = load_image(thumb_bytes)
plt.subplot(1, count, i+1)
plt.imshow(thumb)
plt.tight_layout()
plt.show()
Download Raster
import rasterio
from rasterio.plot import show
paths = client.download_raster(q[0])
rasters = [rasterio.open(im) for im in paths.images]
for i, src in enumerate(rasters):
plt.subplot(1, count, i+1)
ax = plt.gca()
show(src, ax=ax)
plt.tight_layout()
plt.show()
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