Text Archives

Software Archives / Snippet Archives

Midpoint Coons Patch

A fusion of two earlier patches (MP and GC), the Midpoint Coons patch boasts computational efficiency and interior control. Read all about it in our paper for the WAIT'17 conference. Also there is a nice set of slides (with a Star Trek reference).

Last update: 2017.01.31.

Introduction to Persian

I have worked trough all exercises in the 4th edition of "An Introduction to Persian" (by W. M. Thackston), which was a very nice experience. You can find all the words in the vocabulary lists (with Hungarian translations). I have bought the key for this textbook, but found that it had quite a lot of misprints and a few omissions, so I wrote up an errata containing all errors and typos I have found.

Last update: 2017.01.24.

Rust Memos

Some memos I've taken while reading the Rust manual.

Last update: 2016.12.29.

Hindi/Urdu Verb Forms

A table of Hindi and Urdu verb forms (in Hungarian).

Last update: 2016.11.22.

Interview

At the end of my 1-year stay in Hamamatsu, the Suzuki Foundation made a short interview with me about my research, life in Japan etc. (in Japanese).

Last update: 2016.09.12.

Log-Aesthetic Curves

A short review presentation on aesthetic curve representations, focusing on log-aesthetic curves.

Last update: 2016.07.28.

Fitting Generalized Bézier Surfaces

My first rejected paper! It was a short submission to the Pacific Graphics 2016 conference. It does not have much theoretical contribution, but I think it still does a good job as a technical report, so it deserves its place here.

Last update: 2016.07.21.

Books that Make You Smarter

A list (and minimal introduction) of some of my favourite books on programming, sorted by programming language.

Download it in Org-mode text or in HTML.

Last update: 2016.03.01.

Midpoint Patch

Another new paper, this time for the bi-annual Hungarian conference, contrasting multi-sided representations with fullness control, and also introducing a very nice transfinite formulation, which we call the midpoint patch.

Last update: 2016.02.26.

Generalized Bézier Patches

A new paper on the multi-sided generalization of Bézier patches is accepted to the Eurographics 2016 conference, so it will be published in the Computer Graphics Forum journal.

I have already created some slides for the presentation.

Last update: 2016.02.02.

Koranic Arabic

I have worked trough all exercises of "An Introduction to Koranic and Classical Arabic" (by W. M. Thackston), which was a very nice experience. These are all the words in the vocabulary lists (with Hungarian translations). I have bought the key for this textbook, but found that it had quite a lot of errors, even though most exercises used sentences or passages from the Koran or from hadith literature, so I wrote up an errata containing all errors and typos I have found.

Last update: 2015.11.18.

Julia Memos

Some memos I've taken while reading the Julia manual.

Last update: 2015.10.30.

Bayesian Statistics Notes

A memo of the methods in the book "Introduction to Bayesian Statistics".

Last update: 2015.10.15.

Poems in "Chinese through Poetry"

I have collected all poems in "Chinese through Poetry", using simplified characters (TXT, PDF), and also all characters in the vocabularies. There is also a list of errors I've found.

Last update: 2015.10.03.

Italian Memos

All the words I have learned from the classic "Teach Yourself Italian" by K. Speight. There are also some grammar notes. About using the dictionary file, see the snippet page.

Last update: 2015.09.13.

Checkers/Draughts Rule Variations

A short memo comparing different checkers rules: Russian checkers (shashki), English draughts, tournament (or pool) checkers and international checkers.

There is also a minimal printable shashki board for A4 paper using 1 inch squares (EPS source).

Last update: 2015.04.03.

Vim Memo

I'm a believer of Emacs, but every now and then I have to use the EviL editor. This is a brief guide on the essentials of movement and editing in vi/vim.

Here is the original Org mode file, and the generated HTML.

Last update: 2015.03.17.

Indonesian in 20 Pages

As an exercise, I've tried to write up a 20-page introduction to Indonesian grammar (in Hungarian), covering (almost) all the basic constructions, along with a worked out example text. The goal was to create a document that can be read and understood with no previous knowledge of the language.

Download the PDF or get the latest LyX source with Mercurial:

hg clone http://bitbucket.org/salvipeter/gyorstalpalo/
Last update: 2015.02.13.

Square Kufic Designs

Random Arabic phrases wrapped into a geometric design of Kufic script. The PBM files are just bitmaps, the larger PNGs also show the same phrase unwrapped and in standard (Naskh) script.

Open SesamePBMPNG
Time is Like a SwordPBMPNG
(my name)PBMPNG / Color PNG / Seal (password-protected)
(my wife's name)SVGPNG
Thank YouPBMPNG
KebabPBMPNG
Kufic ScriptPBMPNG
Merry ChristmasPBMPNG / Paper-cut
Indonesian LanguagePBM / Dotless versionPNG

Last update: 2015.02.07.

n-Patch Comparison and Poster

A comparison between the generalized Coons patch and our version of the Gregory patch was presented at the 10th Conference of the Hungarian Association for Image Processing and Pattern Recognition. This paper was accepted as a poster (PDF, Scribus) displayed on a fullHD display.

Last update: 2015.01.30.

Hindi Memos

All the words I have learned from "Teach Yourself Beginner's Hindi" (R. Snell), "Teach Yourself Hindi" (R. Snell), and "Living Language Hindi" (M. Bhat) - the latter lists containing only the words not appearing in the previous ones. There are also some grammar notes. About using the dictionary file, see the snippet page.

Last update: 2014.12.31.

Elementary Bridge Techniques

A summary of some elementary Contract Bridge techniques (in Hungarian): trump play, notrump play, and defensive leads and signals.

Last update: 2014.12.22.

Spanish Memos

All the words I have learned from the classic "Teach Yourself Spanish" by N. S. Wilson. There are also some grammar notes. About using the dictionary file, see the snippet page.

Last update: 2014.10.25.

G2 Surface Interpolation

A new paper on creating G2 Gregory patches over a curve network. It was presented at the Pacific Graphic 2014 Conference in Seoul, and it is published in the Computer Graphics Forum journal. A (less polished) previous version was presented at the Seventh Hungarian Conference on Computer Graphics and Geometry, 2014.

Last update: 2014.10.13.

My Favourite Knots

A list of my favourite knots, mostly found in Geoffrey Budworth's wonderful "The Knot Book" (and of course in the Ashley Book of Knots).

Last update: 2014.09.29.

Ribbon-based Transfinite Surfaces

After two years and three revisions, at last our paper is published in the Computer Aided Geometric Design journal.

Note: I have also presented this work at the GMP'15 conference in Lugano.

Last update: 2014.08.05.

Advanced Bridge Techniques

A summary of some advanced Contract Bridge techniques (elimination, throw-in, squeeze, trump/grand coup, Bath coup, Deschapelles coup) illustrated with examples (in Hungarian).

Get it in plain text or in PDF format.

Last update: 2014.07.28.

Hindi Numbers

A logical summary of how numbers are built up in Hindi.

Last update: 2014.06.11.

Persian Memos

All the words I have learned from "Teach Yourself Modern Persian" - both the wonderful 1971 version by John Mace, and the awful 2004 version by N. Farzad, the latter list containing only the words not appearing in the first. There are also some grammar notes. About using the dictionary file, see the snippet page.

Added the words from "An Introduction to Persian" by W. M. Thackston.

Last update: 2014.01.31.

Origami Introduction

I've done an origami workshop at an Asia-related event, and also created some slides to introduce the main concepts (in Hungarian).

Last update: 2014.01.29.

Korean Memos

These are my Korean wordlists. I have tried to learn Korean from quite a few books. The first was Teach Yourself Korean (M. Vincent & J. Yeon), then came the Elementary & Continuing Korean (R. King & J. Yeon), then I found the nice website of Sogang University, which included a few courses. I've also taken some grammar notes.

It was only much later when I realized that Korean is very easy to learn through Japanese. So I bought 文法をしっかり学ぶ韓国語 and 前田式韓国語中級文法トレーニング, and started it all over again (wordlist, grammar notes). About using the dictionary file, see the snippet page.

Last update: 2014.01.15.

IMA 2013 Conference Paper

Our paper "Transfinite surface interpolation over specific curvenet configurations" at the 14th IMA Conference on Mathematics of Surfaces.

Last update: 2013.09.17.

SCIM Input Method Tables

A Greek (which is a port of the modified Emacs greek-babel input method), a Latin (that contains diacritical marks), a Russian (which is a port of the Emacs transliterated cyrillic input method), a Turkish (which is a prefix translation of the Emacs turkish-postfix input method - another Emacs input method mimics the (non-modified) characters of the Turkish Q layout), a Persian (which is a translation of the Emacs farsi-isiri-9147 input method), an Arabic, implementing the standard layout (image from Wikipaedia), and two Hungarian tables for the Smart Common Input Method (SCIM). Place these files in ~/.scim/user-tables, and don't forget to edit the icon path in the txt files. There is also an Emacs port of the SCIM JyutPing (Cantonese Big5) input method, and a postfix Yoruba input method for Emacs (not yet translated to SCIM).

Last update: 2013.12.28.

Go & the Japanese Language

My lecture on the game of go and the Japanese language, presented at the Japan Foundation office in Budapest. I have also created a 9x9 PostScript board for the students (also in PDF and with wood background), and one twice as large for the whiteboard using 40mm magnets (also in PDF).

Added: a 5x5 PostScript board for goro problem solving (also in PDF).

Added: a template for recording go games (碁罫紙) (19x19, A4 size).

Last update: 2013.07.15.

More Papers on Transfinite Surface Interpolation

Two recent papers: a longer one presented at the Hungarian KÉPAF 2013 conference, and a short paper for Eurographics 2013.

Last update: 2013.05.20.

Wedding Invitation

Our invitation card created in Scribus. There is also another version for our wedding party in Japan with an RSVP card.

Last update: 2013.03.21.

PhD Dissertation

My PhD dissertation on "Fair Curves and Surfaces", along with its synopsis (in English and in Hungarian), and the theses booklet (in English and in Hungarian). The main results are also illustrated in the (Hungarian) slides that I presented at the defense of my dissertation.

Last update: 2012.12.14.

Transfinite Surface Interpolation with Interior Control

A paper that will be published in the Graphical Models journal.

Last update: 2012.04.26.

New Papers on Transfinite Surface Interpolation

Two papers we've written for the Sixth Hungarian Conference on Computer Graphics and Geometry, 2012: 3D Shape Design Using Curve Networks with Ribbons, and New Schemes for Multi-sided Transfinite Surface Interpolation.

I have also given a talk on the latter topic at the International Workshop on New Trends in Applied Geometry held in Gazzada, Italy.

Last update: 2012.02.18.

Curriculum Vitae

My CV in European (EuroPass) and in Hungarian format.

Last update: 2012.01.17.

My PGP Key

This is my public key for anyone who wants to send me secure data. You can import it to your keyring using GnuPG with gpg --import peter-salvi.pgp.

PGP Fingerprint: F069 3534 5174 7418 F532 5FD2 CF7A 4AA7 B89A BC28

GTalk/OTR Fingerprint: 01904A6A 78CB8BCB DDBEA30B E0274B8F FBBA3D95

ICQ/OTR Fingerprint: 4502CD10 404F82BC 89E4E9F3 10BDDB91 5B3B4264

MSN/OTR Fingerprint: EC68BEF1 DDB9319E B87D0B35 DF17EEA2 200DA5FE

Last update: 2011.10.13.

Transfinite Surface Interpolation over Irregular n-sided Domains

A paper we've written for the SPM2011 conference. It will be published in the CAD journal.

Last update: 2011.10.01.

Swahili in 20 Pages

As an exercise, I've tried to write up a 20-page introduction to Swahili grammar (in Hungarian), covering (almost) all the basic constructions, along with a worked out example text. The goal was to create a document that can be read and understood with no previous knowledge of the language.

Download the PDF (there is also a cheat sheet), or get the latest LyX source with Mercurial:

hg clone http://bitbucket.org/salvipeter/gyorstalpalo/
Last update: 2011.07.30.

Configuring Gamepads under Linux

A description on configuring my cheap Kraun gamepad to work under Linux. It involves downloading various tools, hacking a kernel module and patching the SDL library - all in a day's work for a programmer!

Last update: 2011.05.08.

Swahili Memos

All the words I have learned from "Colloquial Swahili" (D. McGrath & L. Marten) and those I have learned from "Teach Yourself Swahili" (J. Russell) and those from "Living Language Swahili" (Kh. Mohamed & A. Mazrui), containing only the words not appearing in the previous lists. There are also some grammar notes. About using the dictionary file, see the snippet page.

2010.02.24.: The word list of "Colloquial Swahili" is complete.

2010.04.24.: The word list of "Teach Yourself Swahili" is complete.

2011.05.05.: The word list of "Living Language Swahili" is complete.

Last update: 2011.05.05.

Cantonese Words

All the words I have learned from "Colloquial Cantonese" (Keith S.T. Tong & Gregory James), along with Hungarian meanings and chinese characters (also in HTML version). There is another list in text or in HTML for "Teach Yourself Cantonese" (H. Baker & P. Ho), containing only the words not appearing in the first list. About using the dictionary files, see the snippet page.

2009.11.22.: The word list of "Colloquial Cantonese" is complete.

2011.03.24.: The word list of "Teach Yourself Cantonese" is complete.

Last update: 2011.03.24.

Indonesian Memos

All the words I have learned from "Teach Yourself Indonesian" (Ch. Bymes & E. Nyimas) and some grammar notes. About using the dictionary file, see the snippet page.

2011.02.07.: The word list of "Teach Yourself Indonesian" is complete.

Last update: 2011.02.07.

Arabic Memos

All the words I have learned and some grammar notes (HTML) I took (in Hungarian) while learning from "Teach Yourself Arabic" (J. R. Smart) and other sources, such as "Arabic - An Essential Grammar" (Faruk Abu-Chacra) and "A New Arabic Grammar of the Written Language" (J. A. Haywood & H. M. Nahmad). The words file also has a pattern search feature (written in Emacs Lisp).

Another ASCII-based dictionary contains all the words from the book "Teach Yourself Gulf Arabic" (J. Smart & F. Altorfer).

There is also yet another dictionary based on the words from the series العربية بين يديك (Arabic Between Your Hands). About using the dictionary file, see the snippet page.

Counting may be the most complex part of the Arabic language. Here is a short (Hungarian) memo with a few examples (also in HTML).

Last update: 2010.12.11.

What Makes a Programming Language Comfortable?

A few thoughts on what are the prerequisites for a comfortable programming language. Of course all of this is very subjective.

Last update: 2010.08.16.

Constrained Fairing of Freeform Surfaces

A paper I've written for the Fifth Hungarian Conference on Computer Graphics and Geometry, 2010 and the slides I've presented. It was also rewritten as a short paper for the SPM2010 conference (there is also a longer version).

Last update: 2010.05.28.

Installing VimClojure

A memo on how to install VimClojure.

Last update: 2010.04.06.

Scripting with CLISP

A memo on how to setup CLISP for writing scripts, along with a short example.

Last update: 2009.12.15.

Wubi - Pinyin Dictionary

A list that contains every (1-character) wubi code and maps them to their corresponding chinese character and pronounciation (in pinyin). There is a version with Unicode accents, and a two-column PDF.

This dictionary is automatically generated from the data files of my Wubi Practice program and the tonepy input method in Emacs.

Last update: 2009.11.09.

Compilation in Clojure

A memo on how to compile Clojure programs into JAR files.

Last update: 2009.06.06.

Fairing Posters

Two posters about my research, created with Scribus. Available in Scribus (first, second), EPS (first, second) and JPG (first, second) file formats.

Last update: 2009.05.20.

Ancient Greek Memos

All the words I have learned and some grammar notes (HTML) I took (in Hungarian) while learning from "Introduction to Attic Greek" (D. J. Mastronarde). This table contains sample words for practicing every declension and conjugation I (should) know (there is a filled version here, and also in PDF format). There is also a list of my solutions to the exercises of the book "Homeric Greek - A Book for Beginners" (C. Pharr). About using the dictionary file, see the snippet page.

Note: The Homeric Greek exercises are temporarily suspended.

Last update: 2008.12.26.

Mahjong Rules

A short memo (in Hungarian) on the rules of Chinese and Japanese mahjong, containing the most important words in both languages (also with romaji for Japanese).

Download it in TXT or in HTML.

Last update: 2008.11.18.

Slides on the ICFP'08 Contest

The slides of the presentation I've given on the ICFP'08 programming contest with my friend 黄涧石 at a Lisp seminar in Tokyo.

Download in English (PPT, PDF) or in Japanese (PPT, PDF).

Last update: 2008.11.17.

Cybook Thumbnails

I've created a few (four-gray) thumbnails for some books I've uploaded to my Cybook, using this snippet.

Last update: 2008.10.25.

Anime Ratings

A more-or-less complete list of anime titles I've seen, with a four-scale (very subjective) rating system.

Last update: 2008.10.23.

SVG Images

Well, it's SVG, which is a markup language, so it's text in a way :). There is an Emacs logo (100dpi PNG), the famous FailWhale (100dpi PNG) and a character from the anime series Honey and Clover called Yamada (100dpi PNG).

Last update: 2008.09.25.

Latin Memos

All the words (html) I have learned and some grammar notes (html) (in Hungarian). There is also a list of my solutions (html) to the exercises of the book "Latin for Beginners" (B. L. D'Ooge). About using the dictionary file, see the snippet page.

2008.07.04.: The answer list is now complete.

Last update: 2008.07.04.

C++ Slides

These were my "slides" for two C++ classes I gave. The first is about templates (exercises, solutions), and the second is about STL (exercises, solutions).

Last update: 2008.07.03.

OpenGL Memos

These memos are to help me remember how can I do different things with OpenGL: rotation, zoom and pan in a perspective view; NURBS surface textures; maybe more to come later.

There is also a utility to generate isophote textures.

Last update: 2008.06.30.

Essential Program list

List of the (mostly open-source) programs I frequently use.

Last update: 2008.04.14.

Fast and Local Fairing of B-Spline Curves and Surfaces

A paper I've written for the GMP 2008 conference held in Hangzhou, China. Also presented in a shorter form at the annual meeting of the Japan Society for Precision Engineering.

Last update: 2008.04.10.

Emacs Challenge

An attempt to create an enjoyable `test yourself' quiz for Emacs users. There are only a few (basic) tasks for the moment.

There is also an answer list for my personal use.

Last update: 2008.04.05.

German Memos

All the words I have learned and some grammar notes (in Hungarian). About using the dictionary file, see the snippet page.

Last update: 2008.03.12.

When to Use Which Language?

A short note to remind myself when to use which programming language / library.

Last update: 2008.02.14.

Hebrew Memos

All the words I have learned and some grammar notes (in Hungarian). About using the dictionary file, see the snippet page.

Last update: 2008.01.24.

Russian Memos

All the words I have learned and some grammar notes (in Hungarian). About using the dictionary file, see the snippet page.

Last update: 2008.01.24.

Autotools

A memo for using Autoconf/Automake.

Last update: 2007.12.21.

Music Scores

I sometimes jot down the melodies in my head - movie themes and songs, mainly. These scores were created with Lilypond; I've uploaded the source files I still have, too.

Composer Title Image Source Sound
Liu Song-bai Chun Xiao png ly
Naozumi Yamamoto Fighting Elegy Theme png ly midi
Qi Yu Ganlanshu png ly
John Williams Harry Potter Theme png ly
? JR Signal at Takada no Baba png ly
Loituma The famous Leekspin Song png ly midi
Li Chun-bo Loulan Xinniang png ly
? Misaki no toudai png ly midi
? Fragment of a repeating Naruto theme png ly midi
Tchaikovsky A few measures from (maybe) the
overture of Romeo and Juliet
png ly
? Rudolph the Red-Nosed Reindeer png ly
Li Chun-bo Xiao Fang png ly
Li Chun-bo Yi feng jiashu png ly
Deng Li-jun Yueliang daibiao wo de xin png ly

Last update: 2007.10.19.

CLOS Slides

Some slides (in Hungarian) about CLOS and the conditions system in Common Lisp, written for a class at university. Largely based on Peter Seibel's talk at Google TechTalks, also his wonderful book "Practical Common Lisp" and some other sources.

Available in OpenOffice and PDF file formats. There is also an archive of the examples I have shown during the presentation.

Last update: 2007.09.28.

Local Fairing of Freeform Curves and Surfaces

A paper I've written for the Third Hungarian Conference on Computer Graphics and Geometry, 2005.

Last update: 2007.04.13.

Master's Thesis

My master's thesis at the Eötvös Loránd University.

Last update: 2007.04.13.

Movie list

Some movies I like.

Last update: 2007.04.13.

Translations

Timed Hungarian translation of the Rurouni Kenshin OVA in SubStation Alpha format.

Last update: 2007.04.13.

Classical Japanese Conjugation

Classical Japanese conjugation tables in Hungarian.

Last update: 2007.04.13.

Emacs Beginner's Guide

Emacs basics in English and in Hungarian.

Last update: 2007.04.13.

Interactive Fiction Walkthroughs

Walkthroughs for Dunnet and Hunter, in Darkness.

See more information at Baf's Guide.

Last update: 2007.04.13.

Copyright (C) 2007-2017 Peter Salvi