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Convert .xyz elevation models to GeoTiff

In Germany, more and more state agencies allow free access to high resolution elevation models. However, these are often released as xyz tables, which are not easily used in GIS environments. A standard method to convert this format to raster formats (eg. GeoTiff) is the GDAL function gdal_translate [1, 2]. However, converting 1M lines takes dozens of seconds and is not trivial to parallize.

See also:

Service	Type	RAM	Storage	Limitations
👉 Adaptable	PaaS	256 MB	Non-persistent? (1 GB database storage available)
AWS EC2	IaaS	1 GB		⚠️ Only free for 1 year

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Creating a Windows 11 Install USB in 2022

I have been installing Windows for a long time. Does it get easier? I want to say it gets easier, but it seems like there's always some new wrinkle! These instructions are as much a note to my future self as they may be useful to anyone else.

For me, I was not able to get any exfat-based installs, or even any of the GUI helpers to make this process any more straightforward. Maybe on your target Windows / host OS those helpers will work, but the below process (as of current year) is consistent, and not overly complicated.

Overview:

Downloading an official ISO image from MS:
- https://www.microsoft.com/software-download/windows11
Formatting the drive (at least 8GB) as GPT, and one FAT-format partition (aka MS-DOS)

Can use Disks or Disk Utilty for this

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	import numpy as np
	import cv2

	img = cv2.imread('baseball.png')
	imgray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
	ret, thresh = cv2.threshold(imgray, 127, 255, 0)
	contours, hierarchy = cv2.findContours(thresh, cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)
	print("Number of contours = " + str(len(contours)))
	print(contours[0])

	# all imports
	from IPython.display import Javascript
	from google.colab import output
	from base64 import b64decode
	from io import BytesIO
	!pip -q install pydub
	from pydub import AudioSegment

	RECORD = """
	const sleep = time => new Promise(resolve => setTimeout(resolve, time))

	<?xml version="1.0" encoding="UTF-8"?>
	<!-- Do not edit this file, it will be overwritten on install.
	Copy the file to $HOME/.config/openbox/ instead. -->
	<openbox_config xmlns="http://openbox.org/3.4/rc" xmlns:xi="http://www.w3.org/2001/XInclude">
	<resistance>
	<strength>10</strength>
	<screen_edge_strength>20</screen_edge_strength>
	</resistance>
	<focus>
	<focusNew>yes</focusNew>