Fourth Woods Wiki

2d_graphics

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

2D Graphics Formula for a line `y = mx + b` Slope of a line `m = (Delta y)/(Delta x) = (y_2 - y_1)/(x_2 - x_1)` Y-intercept * Y-intercept - where the line intersects with the line defined by the Y-axis * The line intersects the Y-axis when `x` is `0`.

3d_graphics

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

3D Graphics

awk

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Split a string $ echo "abc:def:ghi" | awk -F':' '{print $3}' ghi Find and Replace with Incrementing Value $ awk 'BEGIN {i = 0;}{ gsub(/([a-zA-Z0-9_]+)/, "foo"i++); print $0}' test.txt > out.txt

batch_files

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

List Files in Directory set src=%1 for /r %%a in (%src%) do echo %%a Trim Extension from Filename set src=%1 for /r %%a in (%src%) do echo %%~na echo %~n1 Replace Extension set src=%1 for /r %%a in (%src%) do echo %%~na.txt

copy_if

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

copy_if template OutputIterator copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred) { for( ; first != last; first++) { if(pred(*first)) *result++ = *first; } return result; }

discrete_math

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Discrete Math Graphs `G = (:N, A, f:)` * `N` - non-empty set of nodes * `A` - set of arcs * `f` - function that associates each arc with an unordered pair of endpoints `G = (:{1,2,3,4,5,6}, {a,b,c,d,e}, {(a, 2-3), (b, 1-4), (c, 4-5), (d, 1-3), (e, 2-2)}:)`

djdoom

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

DjDooM DjDoom is a reference implementation for the original Doom game engine that I have been working on for a little while. The purpose of this project is to build a playable Doom engine from the original Linux source code with minimal changes necessary to build and run in a Windows environment. This was created as a learning tool for me and I'm publishing this so it can be a learning tool for others. It is intended that this be a base for others to build and expand on.

dokuwiki

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Syntax Highlighting Changes to style in language file has no effect. Dokuwiki uses a single stylesheet for all languages. Comment out the following line in parserutils.php to disable. ... 760 // $geshi->enable_classes(); ... ASCIIMathML.js

ffmpeg

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Useful Commands dvd-slideshow -f slides.txt dvdauthor -o DVD -x dvdauthor.xml xine -u 0 dvd:"$(pwd)/DVD" mkisofs -dvd-video -o dvd.iso DVD/ growisofs -dvd-compat -Z /dev/dvdrecorder=dvd.iso mkisofs -r -R -J -o cd.iso dir/ cdrecord -v dev=ATA:0,1,0 cd.iso ffmpeg -i ${VIDEO}.flv -sameq ${VIDEO}.mpg ffmpeg -i ${VIDEO}.avi -pass 2 -target ntsc-dvd -aspect 4:3 ${VIDEO}.mpg transcode -i HT.mpg -y ffmpeg -F mpeg2video -j 64,96 -E 44100 -b 128 -o HT2 -m HT2.ac3 ffmpeg -i HT.mpg -croptop 64 -c…

form

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

git

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Git Cheat Sheet These are the commands that I look up the most to make sure I'm doing them right. Eventually I'll remember them... Branches Create a new branch from current changes This will create the new branch. When the branch is created, it will be active with the changes from the old branch. Switching back to the old branch will no longer show the changes.

html

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

* *

html5

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Canvas Element save() Pushes the current context settings onto the stack. ctx.save(); restore() Pops and restores the most recently saved context settings from the stack. This will undo any changes made to the drawing context since the last call to

input

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Attributes Attribute Value Description Optional disabled disabled

javascript

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Get Element getElementById() The getElementById() method returns the first element with the specified id. document.getElementById(id) Parameter Description id The id of the element to retrieve. var el = document.getElementById("theId"); alert(el.textContent); // the content of the element

midi_file_format

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

MIDI File Format License The bulk of information for this article comes from public domain sources, in particular Standard MIDI File Format by Dustin Caldwell. The rest was filled in through various sources and contributions. As such, even though most articles on this site are licensed under the

movies_with_subtitles

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Title Media Region Position Type Comment 12 Years a Slave BD US

mus_file_format

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

MUS File Format License The bulk of information for this article comes from public domain sources, in particular The MUS File Format by Vladimir Arnost. The rest was filled in through various sources and contributions. As such, even though most articles on this site are licensed under the

mysql

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Login $ mysql -u root -p List Users mysql> SELECT User FROM mysql.user; Databases List Databases mysql> show databases; Change/Select Database mysql> use ; Tables List Tables mysql> show tables; List Table Columns mysql> SHOW COLUMNS FROM ;

oauth2

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

OAuth2 Introduction History Security Authentication vs. Authorization Spring Security Demo Application Spring Boot The demo applications will be developed using Spring Boot. It is assumed you already have an understanding of Spring Boot. If not, have a look at the

programming_tutorial

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Introduction This tutorial is a basic introduction to programming. It is written with the assumption that the student has never written a computer program before beginning with the basic program structure and the ever popular "Hello, world!" program.

samba

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Useful Commands List shares on host: smbclient -L 192.168.1.100 Browse share: smbclient \\\\192.168.1.100\\shared Mount: mount -t smbfs -o username=foo,password=bar //192.168.1.100/shared /mnt/smb or smbmount //192.168.1.103/shared ~/mnt -o username=foo,password=bar,rw

secure_programming

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Uninitialized Variables Unchecked Return Values * When developing an algorithm, developers tend to focus attention on the "good" path, the path that leads to the desired result. * The failure paths are given lower priority or forgotten about. *

sed

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Delete a matching line sed '/pattern/d' filename > newfile Or edit in place (GNU) sed -i '/pattern/d' filename

site_index

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Site Index A B C D E F awk Batch Files copy_if Discrete Math ffmpeg

standard_midi_file_format

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Standard MIDI File Format Dustin Caldwell The standard MIDI file format is a very strange beast. When viewed as a whole, it can be quite overwhelming. Of course, no matter how you look at it, describing a piece of music in enough detail to be able to reproduce it accurately is no small task. So, while complicated, the structure of the midi file format is fairly intuitive when understood.

start

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Fourth Woods Wiki This wiki is intended to be a repository of tips and tricks and general HowTos for all things computer and technology related. New topics usually start as a place to hold my notes and grow from there. Use the search or browse the index at the link below. If you have a topic you'd like to add, feel free to start a new page.

svn

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

SVN Create Server Repository Once SVN is installed on the server execute the following. $ cd /path/to/svn/repos $ svnadmin create repositoryname Change the owner of the repository directory and files. $ chown -R www-data:subversion repositoryname

the_mus_file_format

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

MUS File Format Vladimir Arnost, QA-Software Updated: March 9, 1996 Version: 1.31 Internet: xarnos00@dcse.fee.vutbr.cz FIDO: 2:423/36.2 1. General Description A .MUS file is a simple clone of .MID file. It uses the same instruments, similar commands and the same principle: a list of sound events. It consists of two parts: header and body.

topics_in_computer_science

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Topics in Computer Science * Discrete Math * 3D Graphics

vim

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

Syntax Highlighting :syntax on This can also be added to .vimrc Yank or delete between parentheses Motion select These work for matching parenthesis (), square brackets [], curly brackets {}, angle brackets <>, etc... y% - yank d% - delete

xterm

Anonymous (anonymous@undisclosed.example.com) — 2023-08-18T18:15:42+00:00

.Xdefaults ! Aterm customized defaults Aterm*reverseVideo: true Aterm*visualBell: true ! for unix only (otherwise, use xterm or xterm-color) Aterm*termName: dtterm Aterm*saveLines: 5000 Aterm*transparent: true Aterm*transpscrollbar: true Aterm*shading: 40 Aterm*font: -*-clean-medium-r-*--14-*-*-*-*-60-*-* ! blue is usually too dark to see. this fixes that Aterm*color4: RoyalBlue Aterm*color12: RoyalBlue ! Xterm customized defaults XTerm*reverseVideo: false XTerm*foreground: green XTerm*backg…