Karsten Schmidt postspectacular
🎉
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| import { | |
| comp, | |
| groupByObj, | |
| map, | |
| multiplex, | |
| noop, | |
| pairs, | |
| postProcess, | |
| pushKeys, | |
| range2d, |
postspectacular
/ dem-tiler.ts
Created
August 8, 2026 07:33
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| import { output, processImage } from "@thi.ng/imago"; | |
| import { GRAY8 } from "@thi.ng/pixel"; | |
| import { readGeoTiff } from "@thi.ng/pixel-io-geotiff"; | |
| import { range2d } from "@thi.ng/transducers"; | |
| import { readFileSync } from "node:fs"; | |
| // a 44155 x 25153 pixel GeoTIFF file | |
| const path = "DOM_Tirol_5m_epsg31254/DOM_Tirol_5m_epsg31254_2017-2023.tif"; | |
| // load GeoTIFF |
postspectacular
/ tag-query.test.ts
Created
November 6, 2025 22:21
Query engine example using a Lisp-like syntax to perform nested tag queries with Set-semantics (TODO insert URL)
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| import type { FnU2, Maybe, Predicate2 } from "@thi.ng/api"; | |
| import { difference, intersection, union } from "@thi.ng/associative"; | |
| import { isArray, isString } from "@thi.ng/checks"; | |
| import { illegalArgs } from "@thi.ng/errors"; | |
| import { evalSource } from "@thi.ng/lispy"; | |
| import { defQuery, type QueryOpts } from "@thi.ng/oquery"; | |
| import { expect, test } from "bun:test"; | |
| type Note = { id: number; tags: string[] }; |
postspectacular
/ mastodon-markdown.ts
Created
November 5, 2025 15:07
Example code to convert the body of a single Mastodon post to Markdown (see https://mastodon.thi.ng/@toxi/115496400071927410 for details)
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| import { parseHtml } from "@thi.ng/hiccup-html-parse"; | |
| import { serialize } from "@thi.ng/hiccup-markdown"; | |
| import { arrayZipper, type Location } from "@thi.ng/zipper"; | |
| const HOST = "mastodon.thi.ng"; | |
| const STATUS_ID = "115464108396925195"; | |
| // load a Mastodon status via API | |
| const res = await ( | |
| await fetch(`https://${HOST}/api/v1/statuses/${STATUS_ID}`) |
postspectacular
/ delete-bookmarks.js
Last active
September 4, 2026 15:06
Configurable batch deletion of Mastodon bookmarks (using Mastodon API). MIT Licensed. Edit the configuration at the top of the file and then run via `node delete-bookmark.js`. The script uses various delays to help with API throttling and generally be a good netizen...
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| import { writeFile } from "node:fs/promises"; | |
| // your account domain | |
| const DOMAIN = "mastodon.social"; | |
| // your API access token | |
| const ACCESS_TOKEN = "TODO"; | |
| // directory path for storing JSON backups of deleted bookmarks | |
| const BACKUP_DIR = "backup/20260901"; |
postspectacular
/ swizzle.zig
Created
September 15, 2025 12:54
Comptime enum-based 1D-4D vector swizzling
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| fn swizzleEnum(comptime N: usize, comptime T: type, a: @Vector(N, T), comptime id: Swizzle) @Vector(swizzleLength(id), T) { | |
| comptime var code = @intFromEnum(id); | |
| comptime var i = 0; | |
| comptime var offset = 0; | |
| comptime var count = 4; | |
| inline while (code >= offset + count) { | |
| offset += count; | |
| count <<= 2; | |
| i += 1; | |
| } |
postspectacular
/ lsys-fizzbuzz.ts
Created
March 16, 2025 13:10
L-System based FizzBuzz implementations (using https://thi.ng/lsys)
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| import type { Fn2 } from "@thi.ng/api"; | |
| import { | |
| DEFAULT, | |
| expand, | |
| interpret, | |
| type LSysSymbol, | |
| type RuleImplementations, | |
| } from "@thi.ng/lsys"; | |
| // iterative rule expansion |
postspectacular
/ svg-gauge.html
Last active
November 28, 2024 08:21
Pure SVG based ASCII/UTF art gauge using patterns & symbols to define dither pattern "characters" based on ░▒▓█ (2KB minified, 616 bytes gzipped for entire doc, but only needs around 660 chars (uncompressed) per 24h gauge...)
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge" /> | |
| <title>svg-gauge</title> | |
| <style> | |
| :root { | |
| --gauge-col: #0c9; |
postspectacular
/ ffmpeg-xfade.ts
Last active
August 3, 2024 12:41
TypeScript & ffmpeg-based crossfading & looping slideshow generator. Supports GIF or MP4 output. Configure options at the end of the file, then run via https://bun.sh
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| import { Z4, type Stringer } from "@thi.ng/strings"; | |
| import { | |
| comp, | |
| iterator, | |
| map, | |
| mapcat, | |
| partition, | |
| range, | |
| wrapSides, | |
| } from "@thi.ng/transducers"; |
postspectacular
/ hatching.ts
Created
July 18, 2024 15:38
Hatched polygons with https://thi.ng/umbrella
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| import { | |
| asSvg, | |
| bounds, | |
| circleFrom2Points, | |
| group, | |
| GroupAttribs, | |
| line, | |
| Polygon, | |
| starWithCentroid, | |
| svgDoc, |
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