Last modified on 8 October 2014, at 16:05

User talk:David Eppstein

Return to the user page of "David Eppstein".

Welcome!Edit

I took the liberty of placing my welcome on top of the welcome of the stinky bot which got there before me. Hopefully the bot did not get offended. Oleg Alexandrov 05:00, 6 May 2007 (UTC)

Bot welcomeEdit

Welcome to the Commons, David Eppstein!
Afrikaans | Alemannisch | العربية | Asturianu | Azərbaycanca | Беларуская (тарашкевіца)‎ | Български | বাংলা | Català | Čeština | Dansk | Deutsch | Deutsch (Sie-Form)‎ | Zazaki | Ελληνικά | English | Esperanto | Español | Euskara | Estremeñu | فارسی | Suomi | Français | Frysk | Galego | עברית | हिन्दी | Hrvatski | Magyar | Հայերեն | Interlingua | Bahasa Indonesia | Italiano | 日本語 | ქართული | 한국어 | Latina | Lietuvių | Македонски | മലയാളം | मराठी | Bahasa Melayu | Plattdüütsch | नेपाली | Nederlands | Norsk bokmål | Occitan | Polski | Português | Português do Brasil | Română | Русский | Scots | Slovenčina | Slovenščina | Shqip | Српски / srpski | Svenska | Kiswahili | தமிழ் | ไทย | Türkçe | Українська | Vèneto | Tiếng Việt | 中文 | 中文(简体)‎ | 中文(繁體)‎ | 中文(台灣)‎ | +/−
Crystal Clear app korganizer.png First steps tutorial

Our first steps help file and our FAQ will help you a lot after registration. They explain how to customize the interface (for example the language), how to upload files and our basic licensing policy. You don't need technical skills in order to contribute here. Be bold contributing here and assume good faith for the intentions of others. This is a wiki - it is really easy.

Icon apps query.svg Getting help

More information is available at the Community Portal. You may ask questions at the Help desk, Village Pump or on IRC channel #wikimedia-commons. You can also contact an administrator on their talk page. If you have a specific copyright question, ask at Commons talk:Licensing.

Transmission icon.png Goodies, tips and tricks
  • Put Babel boxes on your user page so others know what languages you can speak and indicate your Graphics abilities.
  • All your uploads are stored in your personal Gallery
  • Please sign your name on Talk pages by typing ~~~~
  • Use the CommonSense tool to find good categories for your files (then other people can find them too!)
  • To link to an image page, write this: [[:Image:Foo.jpg]], it makes this: Image:Foo.jpg
  • If you're copying files from another project, be sure to use the CommonsHelper
Nuvola filesystems trashcan full.png Made a mistake?
  • Did you want to rename or move a file? Simply upload the file again and mark the old one like this: {{bad name|Correct name}}
  • For more information read the full Deletion guidelines
(P.S. Would you like to provide feedback on this message?)

geometry categoryEdit

Dear David,

I have cleaned up the geometry category, only your files are remaining as you were not happy with one of my edits. It would be very nice of you if you could sort your files into a suitable subcategory. Geometry (like mathematics) is a big category, which should be empty from pictures.

best wishes, Darapti

Ok, I've cleared out the rest. To do so I added two more subcategories, discrete geometry and computational geometry. —David Eppstein 06:25, 28 October 2007 (UTC)

thanks, well done


Commons-emblem-issue.svg File:Octahedral_diagram_deligne.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!


Afrikaans | العربية | বাংলা | Беларуская (тарашкевіца)‎ | Català | Čeština | Dansk | Deutsch | Deutsch (Sie-Form)‎ | Zazaki | Ελληνικά | English | Esperanto | Español | Eesti | فارسی | Suomi | Français | Galego | עברית | Magyar | Bahasa Indonesia | Íslenska | Italiano | 日本語 | 한국어 | Македонски | മലയാളം | Plattdüütsch | Nederlands | Norsk nynorsk | Norsk bokmål | Occitan | Polski | Português | Português do Brasil | Română | Русский | Slovenčina | Slovenščina | Српски / srpski | Svenska | Türkçe | українська | Tiếng Việt | 中文 | 中文(简体)‎ | 中文(繁體)‎ | +/−

Ryan Reich (talk) 05:51, 14 January 2009 (UTC)

File:Stephen_Smale.jpgEdit

Commons-emblem-issue.svg File:Stephen_Smale.jpg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!


Afrikaans | العربية | বাংলা | Беларуская (тарашкевіца)‎ | Català | Čeština | Dansk | Deutsch | Deutsch (Sie-Form)‎ | Zazaki | Ελληνικά | English | Esperanto | Español | Eesti | فارسی | Suomi | Français | Galego | עברית | Magyar | Bahasa Indonesia | Íslenska | Italiano | 日本語 | 한국어 | Македонски | മലയാളം | Plattdüütsch | Nederlands | Norsk nynorsk | Norsk bokmål | Occitan | Polski | Português | Português do Brasil | Română | Русский | Slovenčina | Slovenščina | Српски / srpski | Svenska | Türkçe | українська | Tiếng Việt | 中文 | 中文(简体)‎ | 中文(繁體)‎ | +/−

Nsk92 (talk) 02:19, 16 December 2010 (UTC)

Quality Image PromotionEdit

Ten Mile River (California).jpg
Your image has been reviewed and promoted

Congratulations! Ten Mile River (California).jpg, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

Quality Image PromotionEdit

Nested hyperboloids.png
Your image has been reviewed and promoted

Congratulations! Nested hyperboloids.png, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

Quality Image PromotionEdit

BigRiver.jpg
Your image has been reviewed and promoted

Congratulations! BigRiver.jpg, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

SciencePlaza.jpg
Your image has been reviewed and promoted

Congratulations! SciencePlaza.jpg, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

Quality Image PromotionEdit

UCI Donald Bren Hall.jpg
Your image has been reviewed and promoted

Congratulations! UCI Donald Bren Hall.jpg, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

TUSC token 9fa35723c5367067637c78cad809f4e2Edit

I am now proud owner of a TUSC account!

File:Grigory_Margulis.jpgEdit

Commons-emblem-issue.svg File:Grigory_Margulis.jpg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!


Afrikaans | العربية | বাংলা | Беларуская (тарашкевіца)‎ | Català | Čeština | Dansk | Deutsch | Deutsch (Sie-Form)‎ | Zazaki | Ελληνικά | English | Esperanto | Español | Eesti | فارسی | Suomi | Français | Galego | עברית | Magyar | Bahasa Indonesia | Íslenska | Italiano | 日本語 | 한국어 | Македонски | മലയാളം | Plattdüütsch | Nederlands | Norsk nynorsk | Norsk bokmål | Occitan | Polski | Português | Português do Brasil | Română | Русский | Slovenčina | Slovenščina | Српски / srpski | Svenska | Türkçe | українська | Tiếng Việt | 中文 | 中文(简体)‎ | 中文(繁體)‎ | +/−

Yerpo Eh? 12:34, 15 January 2012 (UTC)

Quality Image PromotionEdit

Orange County Museum of Art exterior.jpg
Your image has been reviewed and promoted

Congratulations! Orange County Museum of Art exterior.jpg, which was produced or nominated by you, was reviewed and has now been promoted to Quality Image status.

If you would like to nominate another image, please do so at Quality images candidates.

File:Tucker's Genus Two Group.jpgEdit

Commons-emblem-issue.svg File:Tucker's Genus Two Group.jpg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!


Afrikaans | العربية | বাংলা | Беларуская (тарашкевіца)‎ | Català | Čeština | Dansk | Deutsch | Deutsch (Sie-Form)‎ | Zazaki | Ελληνικά | English | Esperanto | Español | Eesti | فارسی | Suomi | Français | Galego | עברית | Magyar | Bahasa Indonesia | Íslenska | Italiano | 日本語 | 한국어 | Македонски | മലയാളം | Plattdüütsch | Nederlands | Norsk nynorsk | Norsk bokmål | Occitan | Polski | Português | Português do Brasil | Română | Русский | Slovenčina | Slovenščina | Српски / srpski | Svenska | Türkçe | українська | Tiếng Việt | 中文 | 中文(简体)‎ | 中文(繁體)‎ | +/−

Eleassar (t/p) 13:29, 19 October 2012 (UTC)

Autopatrol givenEdit

Commons Autopatrolled.svg

Hello. I just wanted to let you know that I have granted autopatrol rights to your account; the reason for this is that I believe you are sufficiently trustworthy and experienced to have your contributions automatically sighted. This will have no effect on your editing, and is simply intended to help users watching Recent changes or Recent uploads to find unproductive edits amidst the productive ones. Thank you. INeverCry 20:16, 8 January 2013 (UTC)

Thanks! —David Eppstein (talk) 20:16, 8 January 2013 (UTC)

Picture of the Year voting round 1 openEdit

Dear Wikimedians,

Wikimedia Commons is happy to announce that the 2012 Picture of the Year competition is now open. We're interested in your opinion as to which images qualify to be the Picture of the Year for 2012. Voting is open to established Wikimedia users who meet the following criteria:

  1. Users must have an account, at any Wikimedia project, which was registered before Tue, 01 Jan 2013 00:00:00 +0000 [UTC].
  2. This user account must have more than 75 edits on any single Wikimedia project before Tue, 01 Jan 2013 00:00:00 +0000 [UTC]. Please check your account eligibility at the POTY 2012 Contest Eligibility tool.
  3. Users must vote with an account meeting the above requirements either on Commons or another SUL-related Wikimedia project (for other Wikimedia projects, the account must be attached to the user's Commons account through SUL).

Hundreds of images that have been rated Featured Pictures by the international Wikimedia Commons community in the past year are all entered in this competition. From professional animal and plant shots to breathtaking panoramas and skylines, restorations of historically relevant images, images portraying the world's best architecture, maps, emblems, diagrams created with the most modern technology, and impressive human portraits, Commons features pictures of all flavors.

For your convenience, we have sorted the images into topic categories. Two rounds of voting will be held: In the first round, you can vote for as many images as you like. The first round category winners and the top ten overall will then make it to the final. In the final round, when a limited number of images are left, you must decide on the one image that you want to become the Picture of the Year.

To see the candidate images just go to the POTY 2012 page on Wikimedia Commons

Wikimedia Commons celebrates our featured images of 2012 with this contest. Your votes decide the Picture of the Year, so remember to vote in the first round by January 30, 2013.

Thanks,
the Wikimedia Commons Picture of the Year committee


Delivered by Orbot1 (talk) at 09:04, 19 January 2013 (UTC) - you are receiving this message because you voted last year

Picture of the Year 2013 R1 AnnouncementEdit

Round 1 of Picture of the Year 2013 is open!Edit

2012 Picture of the Year: A pair of European Bee-eaters in Ariège, France.

Dear Wikimedians,

Wikimedia Commons is happy to announce that the 2013 Picture of the Year competition is now open. This year will be the eighth edition of the annual Wikimedia Commons photo competition, which recognizes exceptional contributions by users on Wikimedia Commons. Wikimedia users are invited to vote for their favorite images featured on Commons during the last year (2013) to produce a single Picture of the Year.

Hundreds of images that have been rated Featured Pictures by the international Wikimedia Commons community in the past year are all entered in this competition. These images include professional animal and plant shots, breathtaking panoramas and skylines, restorations of historical images, photographs portraying the world's best architecture, impressive human portraits, and so much more.

For your convenience, we have sorted the images into topical categories. Two rounds of voting will be held: In the first round, you may vote for as many images as you like. The top 30 overall and the most popular image in each category will continue to the final. In the final round, you may vote for just one image to become the Picture of the Year.

Round 1 will end on . Click here to learn more and vote »

Thanks,
the Wikimedia Commons Picture of the Year committee

You are receiving this message because you voted in the 2012 Picture of the Year contest.

Picture of the Year 2013 R2 AnnouncementEdit

Round 2 of Picture of the Year 2013 is open!Edit

2012 Picture of the Year: A pair of European Bee-eaters in Ariège, France.

Dear Wikimedians,

Wikimedia Commons is happy to announce that the second round of the 2013 Picture of the Year competition is now open. This year will be the eighth edition of the annual Wikimedia Commons photo competition, which recognizes exceptional contributions by users on Wikimedia Commons. Wikimedia users are invited to vote for their favorite images featured on Commons during the last year (2013) to produce a single Picture of the Year.

Hundreds of images that have been rated Featured Pictures by the international Wikimedia Commons community in the past year were entered in this competition. These images include professional animal and plant shots, breathtaking panoramas and skylines, restorations of historical images, photographs portraying the world's best architecture, impressive human portraits, and so much more.

There are two total rounds of voting. In the first round, you voted for as many images as you liked. The top 30 overall and the most popular image in each category have continued to the final. In the final round, you may vote for just one image to become the Picture of the Year.

Round 2 will end on . Click here to learn more and vote »

Thanks,
the Wikimedia Commons Picture of the Year committee

You are receiving this message because you voted in the 2013 Picture of the Year contest.

This Picture of the Year vote notification was delivered by MediaWiki message delivery (talk) 19:22, 22 February 2014 (UTC)

Picture of the Year 2013 Results AnnouncementEdit

Picture of the Year 2013 ResultsEdit

The 2013 Picture of the Year. View all results »

Dear David Eppstein,

The 2013 Picture of the Year competition has ended and we are pleased to announce the results: We shattered participation records this year — more people voted in Picture of the Year 2013 than ever before. In both rounds, 4070 different people voted for their favorite images. Additionally, there were more image candidates (featured pictures) in the contest than ever before (962 images total).

  • In the first round, 2852 people voted for all 962 files
  • In the second round, 2919 people voted for the 50 finalists (the top 30 overall and top 2 in each category)

We congratulate the winners of the contest and thank them for creating these beautiful images and sharing them as freely licensed content:

  1. 157 people voted for the winner, an image of a lightbulb with the tungsten filament smoking and burning.
  2. In second place, 155 people voted for an image of "Sviati Hory" (Holy Mountains) National Park in Donetsk Oblast, Ukraine.
  3. In third place, 131 people voted for an image of a swallow flying and drinking.

Click here to view the top images »

We also sincerely thank to all 4070 voters for participating and we hope you will return for next year's contest in early 2015. We invite you to continue to participate in the Commons community by sharing your work.

Thanks,
the Picture of the Year committee

You are receiving this message because you voted in the 2013 Picture of the Year contest.

Delivered by MediaWiki message delivery (talk) 22:59, 26 March 2014 (UTC)

File:Levi's lemma.svgEdit

If you still have the [LaTeX, I assume] source for this, please covert its fonts to SVG paths/shapes as well. The SVG itself looks fine on Windows, but the mediawiki software runs on Linux, which substitutes fonts with slightly different metrics. As a result, the green rectangle cuts right across the middle of a "1" in the way mediawiki renders it (as png conversion) in the article(s) were it's used. You can use dvisvgm --no-fonts to force conversion of font glyphs to paths/shapes. JMP EAX (talk) 11:23, 1 September 2014 (UTC)

The really weird thing is that your SVG actually uses Liberation Serif as font (which is a Linux/RedHat font), but the (supposedly Linux) boxes where mediawiki does conversion to png apparently have the font with different metrics. Either that, or they might not have the font installed at all. Or maybe their SVG2PNG conversion program is bugged somehow. JMP EAX (talk) 12:03, 1 September 2014 (UTC)

It's not LaTeX. I drew it in Adobe Illustrator and then converted the fonts from times to liberation by doing a text replace in the svg file. So what you see is all there is. —David Eppstein (talk) 16:54, 1 September 2014 (UTC)
I'd be interested in any comments you have about tools for generating SVGs. Are your graphs usually hand-drawn in Illustrator? I was looking at the source for some of them and they are wonderfully clean. - Pointillist (talk) 09:43, 8 October 2014 (UTC)
Yes, usually hand-drawn. Some of the more complicated ones use Python scripts to generate svg instead; those usually have source code included on the description page. —David Eppstein (talk) 16:05, 8 October 2014 (UTC)