| 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 | |
| ) |
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.
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:
| 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"> |
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.
Based on this guide.
| // 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 |
| const getLoadedImg = (url: string) => new Promise<HTMLImageElement>(resolve => { | |
| const img = new Image(); | |
| img.crossOrigin = "anonymous"; | |
| img.src = url | |
| img.onload = function () { | |
| resolve(img); | |
| } | |
| }); |
On Mac OS X you can install the “GDAL Complete” Framework from kyngchaos.com.
GDAL applications are run through the Mac OS X Terminal. The first time you install the GDAL package there is one additional step to make sure you can access these programs. Open the Terminal application and run the following commands:
vi ~/.zshenv
| import time | |
| import random | |
| import concurrent.futures | |
| e = concurrent.futures.ThreadPoolExecutor(4) | |
| s = range(10) | |
| def sleep_and_return(i): | |
| time.sleep(random.randint(3,7)) | |
| return i |