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AncientJames / pixelmap.py

Created February 28, 2025 02:14

This is the TPC I used to pixel map the Fibrovisor ( https://www.youtube.com/watch?v=zz59e1wWyVc ). It uses rgbmatrix ( https://github.com/hzeller/rpi-rgb-led-matrix ) to light up one pixel at a time, and opencv to record the position of the brightest spot in the frame.

	#!/usr/bin/env python
	import time
	import sys
	import getpass

	from rgbmatrix import RGBMatrix, RGBMatrixOptions
	import cv2 as cv

	options = RGBMatrixOptions()
	options.hardware_mapping = 'regular'

jimbrayrcp / Text Field Character Count.swift

Created June 10, 2020 19:18

For Swift UI: a simple text field character counter with return value into another text field.

	import SwiftUI
	import Combine


	class TextCountMgr: ObservableObject {
	@Published var counted = "0"
	@Published var text = "" {
	didSet {
	counted = String(text.count)
	}

marslin1220 / RequestPlayground.swift

Last active April 7, 2025 08:06

How to create a HTTP GET request on Swift Playground

	import Foundation
	import PlaygroundSupport

	URLCache.shared = URLCache(memoryCapacity: 0, diskCapacity: 0, diskPath: nil)
	PlaygroundPage.current.needsIndefiniteExecution = true

	// Refer to the example: https://grokswift.com/simple-rest-with-swift/
	let todoEndpoint: String = "https://jsonplaceholder.typicode.com/todo/1"
	guard let url = URL(string: todoEndpoint) else {
	print("Error: cannot create URL")