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pmav99

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@pmav99
pmav99 / cubed_sphere.py
Created November 21, 2024 22:36 — forked from darothen/cubed_sphere.py
Cubed Sphere Mesh Generation and Plotting
from itertools import product
import numpy as np
INV_SQRT_3 = 1.0 / np.sqrt(3.0)
ASIN_INV_SQRT_3 = np.arcsin(INV_SQRT_3)
def gaussian_bell(xs, ys, xc=0., yc=0., xsigma=1., ysigma=1.):
""" Compute a 2D Gaussian with asymmetric standard deviations and
@pmav99
pmav99 / GSHHG_Crude.txt
Created October 2, 2024 09:47
Equal Earth Projections comparison
count mean std min 0.01% 0.1% 1% 5% 50% 95% max
Sphere_Sinusoidal 763.0 1.914681e+11 2.372329e+12 12710.243678 19863.381206 84241.618957 319912.537468 736928.604246 7.063695e+06 3.933282e+10 5.037316e+13
World_Sinusoidal 763.0 1.916041e+11 2.374258e+12 12807.187297 19925.034360 83985.657924 321332.775607 734977.773185 7.105145e+06 3.955987e+10 5.047489e+13
Sphere_Mollweide 763.0 1.910515e+11 2.370221e+12 11428.973514 18679.709621 83936.334582 321039.742256 730216.371168 7.080316e+06 3.922586e+10 5.037068e+13
World_Mollweide 763.0 1.914797e+11 2.375534e+12 11454.594055 18721.584280 84124.496300 321759.423300 731853.311448 7.096188e+06 3.931379e+10 5.048360e+13
Sphere_Eckert_VI 763.0 1.914801e+11 2.372390e+12 10075.406577 17429.301224 83614.353046 317443.145553 73206
@pmav99
pmav99 / append_to_parquet.ipynb
Last active September 8, 2023 08:18
append to parquet files
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@pmav99
pmav99 / split_quads.md
Last active August 2, 2022 07:42
Split quads using numpy

image

image

import numpy as np

face_nodes = np.array([
    [1, 2, 6, np.nan],
    [1, 6, 5, np.nan],
@pmav99
pmav99 / dotted_to_nested.py
Created November 28, 2021 12:29
Convert a "dotted" dictionary to a nested one
from functools import reduce
from typing import Any
from typing import Dict
def merge(a, b, path=None):
""" Merge dictionary a into b (in-place)"""
# source: https://stackoverflow.com/a/7205107/592289
if path is None: path = []
for key in b:
@pmav99
pmav99 / transform_epsg_4326_to_3857_with_pyproj.py
Created December 18, 2020 23:10
Convert epsg:4326 to epsg:3857 using the latest version of pyproj
import numpy as np
import pyproj
# Use the "new" numpy API for the random number generation (requires numpy >=1.17)
rng = np.random.default_rng(seed=1)
# Create arrays with random points
no_points = 5
longitudes = rng.uniform(low=10, high=20, size=no_points)
latitudes = rng.uniform(low=33, high=45, size=no_points)
@pmav99
pmav99 / gatttool-polar-h10.txt
Created November 24, 2020 20:32 — forked from fphammerle/gatttool-polar-h10.txt
bluez gatttool: receive heart rate notifications from polar h10 (bluetooth heart rate sensor)
$ sudo hcitool lescan
AA:BB:CC:DD:EE:FF Polar H10 ABCDEFGH
$ gatttool -t random --device=AA:BB:CC:DD:EE:FF --interactive
[AA:BB:CC:DD:EE:FF][LE]> connect
Attempting to connect to AA:BB:CC:DD:EE:FF
Connection successful
[AA:BB:CC:DD:EE:FF][LE]> primary
attr handle: 0x0001, end grp handle: 0x0009 uuid: 00001800-0000-1000-8000-00805f9b34fb
attr handle: 0x000a, end grp handle: 0x000d uuid: 00001801-0000-1000-8000-00805f9b34fb
@pmav99
pmav99 / test_tf.py
Last active October 22, 2019 13:33
Simple tensorflow test
#!/usr/bin/env python3
import datetime
import numpy as np
import tensorflow as tf
# Processing Units logs
log_device_placement = True
@pmav99
pmav99 / verify_password.py
Created October 21, 2019 09:36
Verify jupyter / ipython password hashlib
import hashlib
import sys
if len(sys.argv) != 3:
sys.exit("Usage: python3 verify.py hash passphrase")
provided_hash = sys.argv[1]
passphrase = sys.argv[2]
salt = provided_hash.split(":")[1]
@pmav99
pmav99 / test_single_gpu.py
Created August 8, 2019 13:28 — forked from j-min/test_single_gpu.py
TensorFlow single GPU example
from __future__ import print_function
'''
Basic Multi GPU computation example using TensorFlow library.
Author: Aymeric Damien
Project: https://github.com/aymericdamien/TensorFlow-Examples/
'''
'''
This tutorial requires your machine to have 1 GPU
"/cpu:0": The CPU of your machine.