Moshe Jonathan Gordon Radian VehpuS

Rasterio has different ways to access datasets located on disk or at network addresses and datasets located in memory buffers. This document explains the former once again and then introduces the latter for the first time.

Accessing datasets on your filesystem

To access datasets on disk, give a filesystem path to rasterio.open().

import rasterio

# Open a dataset located in a local file.
with rasterio.open('data/RGB.byte.tif') as dataset:

What is git-crypt

In short, git-crypt is a tool that allows you to encrypt and decrypt files with GPG keys in the background of Git commands. Once the tool is properly configured, the files are encrypted on push to and decrypted when fetched from the remote server.

NOTE: git-crypt is not a super secure encryption, and does not replace the need to protect the repo behind 2FA. It's use is to allow us to share code level data that should not be saved with our codebase (i.e. external credentials) but that we still wish to share with the team.

Setup

Based on this guide.

	/**
	* Get a list of all upvotes urls for a user from a single page
	* @param {string} user - The logged in username (you won't be able to get a response for another user)
	* @param {number} pageNum - The page of upvotes to query
	* @returns {Promise<string[]>} a list of upvoted URLs from the page
	*/
	const queryUserUpvotesByPage = async (user, pageNum) => {
	const req = await fetch(`https://news.ycombinator.com/upvoted?id=${user}&p=${pageNum}`);
	const text = await test.text();
	return Array.from(text.matchAll(/titleline.?a href\="(.?)"/g)).map(([t, url]) => url);

	import subprocess
	import sys

	def run_os_cmd(
	cmd: str, # Command to run
	interactive_write: bool=True, # Should the command print as it's running
	):
	print(f"Running '{cmd}'")
	cmd_proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True )

	def range_from_slice_overcomplicated(slc: slice, length: int) -> range:
	step = 1 if slc.step is None else slc.step
	assert step != 0, "slice step cannot be zero"
	default_start = 0 if step > 0 else length - 1
	default_end = length if step > 0 else 0
	return range(
	default_start if slc.start is None else (length + slc.start) if slc.start < 0 else slc.start,
	default_end if slc.stop is None else max(-1, (length + slc.stop)) if slc.stop < 0 else min(slc.stop, length),
	step
	)

	MASKED_VAL = -1 # Will depend on the band data (in my case it was always positive)

	width = im.shape[-1]
	height = im.shape[-2]

	b = math.ceil(max(width, height)/factor)
	dest_dim = b * factor
	width_pad = dest_dim - width
	height_pad = dest_dim - height

	<html>
	<head>
	</head>
	<body>
	<div class="toc-content">
	<p class="large">This is a list of all the data available from MuseIO. For the data available from LibMuse, please see the API Reference for your platform.</p>

	<div class="admonition-note-weak">NOTE: Different data parameters like sampling rate, resolution, and more can be configured using <a title="Headband Configuration Presets" href="https://web.archive.org/web/20181105231756/http://dev.choosemuse.com/hardware-firmware/headband-configuration-presets">preset commands</a> that are sent when a connection to Muse is established.</div>
	<h2><span id="EEG_Data"><b>EEG Data</b></span></h2>
	<div class="toc-step-content">

	#!/bin/bash
	let x=0;until ((x==120)); do let x+=1;echo $x;done

	// neither recursion nor looping is necessary to compute a mod b. That's easily done by a - (b * floor(a/b)).
	const mod = (a, b) => a - (b * floor(a/b))

	// Simple, but powerful when running on platforms that lack the function but have the floor function (i.e. GLSL for deck.gl)

	// Thanks to https://stackoverflow.com/questions/35155598/unable-to-use-in-glsl for the idea

Moshe Jonathan Gordon Radian VehpuS

Accessing datasets on your filesystem

What is git-crypt

Setup

Git-crypt and GPG installation