Alex Harsányi alex-hhh

https://alex-hhh.github.io/2019/08/timezone-lookup.html

These are the test results when running the tests mentioned in the above blog post against Racket 7.3, I did not run the first test, as it takes way too long. These results indicate that Racket 7.3 is faster than Racket-on-Chez used for the measurements in that blog post, but the aim of the blog post was not to measure the performance difference between Racket versions. Since the results are interesting, I decided to move them here, rther than discard them.

You can run the tests yourself, see https://github.com/alex-hhh/time-zone-lookup-tests

	;; A tetris game -- partial implementation, part 3

	;; Copyright (c) 2020 Alex Harsányi ([email protected])

	;; Permission is hereby granted, free of charge, to any person obtaining a
	;; copy of this software and associated documentation files (the "Software"),
	;; to deal in the Software without restriction, including without limitation
	;; the rights to use, copy, modify, merge, publish, distribute, sublicense,
	;; and/or sell copies of the Software, and to permit persons to whom the
	;; Software is furnished to do so, subject to the following conditions:

	;; A tetris game -- partial implementation, part 2

	;; Copyright (c) 2020 Alex Harsányi ([email protected])

	;; Permission is hereby granted, free of charge, to any person obtaining a
	;; copy of this software and associated documentation files (the "Software"),
	;; to deal in the Software without restriction, including without limitation
	;; the rights to use, copy, modify, merge, publish, distribute, sublicense,
	;; and/or sell copies of the Software, and to permit persons to whom the
	;; Software is furnished to do so, subject to the following conditions:

	;; A tetris game -- partial implementation, part 1

	;; Copyright (c) 2020 Alex Harsányi ([email protected])

	;; Permission is hereby granted, free of charge, to any person obtaining a
	;; copy of this software and associated documentation files (the "Software"),
	;; to deal in the Software without restriction, including without limitation
	;; the rights to use, copy, modify, merge, publish, distribute, sublicense,
	;; and/or sell copies of the Software, and to permit persons to whom the
	;; Software is furnished to do so, subject to the following conditions:

	#lang racket/gui

	(define chess-piece-snip-class
	(make-object
	(class snip-class%
	(super-new)
	(send this set-classname "chess-piece-snip"))))

	(send (get-the-snip-class-list) add chess-piece-snip-class)

	#lang racket
	(require json racket/draw math/base)

	(define (lat-lon->map-point coordinates)
	(match-define (list lon lat _ ...) coordinates)
	(define-values (x y) (values (degrees->radians lon) (asinh (tan (degrees->radians lat)))))
	(list (/ (+ 1 (/ x pi)) 2) (/ (- 1 (/ y pi)) 2)))

	(define (draw-polygon dc polygons)
	(define path

	#lang racket
	(require json)

	;; Example 0: Load and manipulate the Timezone GeoJSON file

	;; You will also need to download timezone data from:
	;;
	;; https://github.com/evansiroky/timezone-boundary-builder/releases

	;; Copyright (c) 2019 Alex Harsányi

	#lang racket/base
	;; Copyright (c) 2019 Alex Harsanyi

	;; Permission is hereby granted, free of charge, to any person obtaining a
	;; copy of this software and associated documentation files (the "Software"),
	;; to deal in the Software without restriction, including without limitation
	;; the rights to use, copy, modify, merge, publish, distribute, sublicense,
	;; and/or sell copies of the Software, and to permit persons to whom the
	;; Software is furnished to do so, subject to the following conditions:

	#lang racket
	(require racket/draw
	racket/promise
	plot
	plot/utils
	pict)

	;; These color maps correspond to the Matplotlib 3.0.3 qualitative color maps
	;; with the same names. See
	;; https://matplotlib.org/examples/color/colormaps_reference.html

Alex Harsányi alex-hhh

Bounding Boxes (2)