This requires you have a github account and personal access tokens. See https://stackoverflow.com/questions/58919401/installing-packages-from-github-npm-registry-auth-error-401
> npm i
> npm run serve
# First, increase the version number in package.json to the
# next in sequence from the current NPM version.
> npm run build
> npx rollup -c
# Push to demo site:
> git add . ; git ci -m 'Pushing version x.x.x' ; git push
> npm publish
Command for working with .xyz files.
~/dbs/xyz> ./xyz.py
usage: xyz.py [-h] [-infile INFILE] [-outfile OUTFILE] [-xmin XMIN] [-ymin YMIN] [-xmax XMAX] [-ymax YMAX]
Extracts regions bounded by the given arguments. By default, reads from stdin and writes to stdout, with infinite
upper and lower bounds.
optional arguments:
-h, --help show this help message and exit
-infile INFILE
-outfile OUTFILE
-xmin XMIN
-ymin YMIN
-xmax XMAX
-ymax YMAX