# User talk:Cmglee

## Thanks

1. File:Euler diagram of triangle types.svg — Clever... AnonMoos (talk) 10:49, 20 April 2011 (UTC)
2. re: http://en.wikipedia.org/wiki/File:Comparison_disk_storage.svg Excellent, deft compact display of layered information! Thank you. Dcsutherland (talk) 13:19, 14 July 2011 (UTC)
3. your http://en.wikipedia.org/wiki/File:Comparison_semiconductor_process_nodes.svg is another stunningly beautiful expression of information. Thank you so much for taking your time to put this together.
4. I loved your work on Convolution. I just had to come here and put a few words of thanks. I hope you get time to do more and contribute to helping others learn faster and with more clarity. --Aditya8795 (talk) 06:22, 15 October 2018 (UTC)
Thanks for your kind words — much appreciated! Cmglee (talk) 18:46, 17 November 2011 (UTC)

Hi There, I was interested in using your periodic table of elements graphic in a publication. Would that be possible? Thank you!

Thanks for asking — certainly! Could you please add the standard Wikimedia credit line below so that your readers can find its vector-graphics version, and also be aware of the discussion regarding its accuracy? Cheers, cmglee (talk) 00:10, 30 May 2016 (UTC)
© CMG Lee / http://commons.wikimedia.org/wiki/file:nucleosynthesis_periodic_table.svg / CC-BY-SA-3.0


## File:Variance_visualisation.svg

Hi! I love your illustration of Standard Deviation. It made the concept make sense to me for the first time.

Thanks, glad to be of help! cmglee (talk) 02:06, 1 February 2016 (UTC)

It is not a good idea to add photographer name into the filename. Credits are given in the image description ("Author"). Regards. Materialscientist (talk) 23:46, 25 July 2012 (UTC)

Hi I note that you have renamed a large number of my and other contributors' uploads under this Commons:FR#reasons:
# Aim Examples (old name) Examples (new name)
3. Correct misleading names into accurate ones File:MY_CUTE_MOUSE.JPG
File:1BIGGest_nOSE_everS33n.JPG
File:Dutch_pet_rabbit.jpg
File:John_Doe_at_concert.jpg
I do not see how prefixing my ID makes it a misleading name. It is certainly not what the examples illustrate. Can you point me to a Wikimedia guideline stating that IDs are not allowed in filenames?
The issue is not credit but to keep the filenames unique. E.g. being a popular subject, there could be any number of images called File:London_Aquatics_Centre_interior.jpg while File:cmglee_London_Aquatics_Centre_interior.jpg is much more likely to be unique and would almost certainly not clash with an existing file.
cmglee (talk) 13:24, 29 July 2012 (UTC)
Thanks for bringing this up. The renames were proposed by user:BaldBoris and I agreed with him, but you are correct that this is not reflected in the renaming guidelines, and you can claim the files should be moved back. I'm looking into the relevant guidelines and will get back to this. Cheers. Materialscientist (talk) 23:00, 29 July 2012 (UTC)
Thanks for your understanding. As there's a more thorough discussion at Commons:Administrators'_noticeboard#ID_in_filenames_.2F_User:Materialscientist, let's continue there. cmglee (talk) 11:21, 30 July 2012 (UTC)

## Thank you for making Phase_diagram_of_water.svg

It illustrates the phases very nicely! Thanks! Scraimer (talk) 08:42, 29 July 2012 (UTC)

Thanks, Scraimer; glad you find it useful! cmglee (talk) 11:22, 30 July 2012 (UTC)

hi, I tried to use this nice file at google.sites and it seems that svg files are not allowed therefore I uploaded the file at https://commons.wikimedia.org/wiki/File:Phase_diagram_of_water_as_png.png but I am not sure if it was well referenced..... please let me know if it is ok, because I am rookie in this things of Cretive Commons License...

— Preceding unsigned comment added by Joseasorrentino (talk • contribs) 16:54, 24 May 2016 (UTC)
Hi @Joseasorrentino, It's ok, as long as you link back to the original page [1], though I think you could have just linked to a PNG automagically rendered to the size you want by using a URL similar to http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Phase_diagram_of_water.svg/1234px-Phase_diagram_of_water.svg.png (replace 1234 with your preferred width in pixels). Cheers, cmglee (talk) 21:05, 24 May 2016 (UTC)

Thanks Cmglee.... I did not found the way to link it before although I saw the reference to this rendered file.... I am now using the file you produced because the main idea is to give you the credit.... very nice plot... yours. Joseasorrentino

Hi @Joseasorrentino, Thanks for your kind words. If you could link me to the Google sites you're using it on, I'd love to see your work! cmglee (talk) 23:45, 24 May 2016 (UTC)

## Dice Distribution

On File:Dice Distribution (bar).svg, could you remove the strange numbers on the left that don't line up with the values of the p.m.f.? And maybe move the fractions to the left axis? I would, but I can't get my Inkscape to do anything with it. Dicklyon (talk) 03:31, 29 April 2013 (UTC)

The numbers are not strange at all: they are probabilities in decimal representation (where the scale on the right is in fractions). They are useful to allow different distributions to be compared, as in File:Dice sum central limit theorem.svg. cmglee (talk) 08:58, 29 April 2013 (UTC)
But they're not being used for that, and multiples of 0.02 are strange when unrelated to anything useful. Dicklyon (talk) 19:42, 29 April 2013 (UTC)
Dicklyon, I don’t get what you’re talking about. The axis on the left is a completely normal decimal axis as used in any and all graphs. It is useful for the same reason and purpose as it is in all other graphs. The fractions are nice for the exact value, but the decimals are what give me the real feeling of magnitude. They should stay. — Timwi (talk) 23:11, 29 April 2013 (UTC)

## File:Centres of origin and spread of agriculture.svg

Kind of leaves out Ethiopia... AnonMoos (talk) 03:56, 26 August 2013 (UTC)

Thanks for your comment, but unfortunately, I'm not familiar enough with the subject to make an informed change. I merely made the arrows more visible in that graphic. cmglee (talk) 18:59, 26 August 2013 (UTC)

## File:Cmglee London Kings Cross platform 6.jpg

Hi, could you please add a date to this? -mattbuck (Talk) 20:12, 2 September 2013 (UTC)

Done. cmglee (talk) 21:08, 3 September 2013 (UTC)

## Untitled message

January 30, 2014

Hello,

I am writing to thank you for making your photograph available for publication through Creative Commons Attribution 3.0 License. We plan to use the following photograph for inclusion in Harold Kalman, Heritage Planning, to be published in 2014 by Routledge. The image that we plan to use is: https://commons.wikimedia.org/wiki/File:Herbert_Backstage_Pass_cmglee_02.jpg

You will be credited as the photographer in the caption as Cmglee, Wkimedia.

Thank you,

Susan Skicbbc (talk) 23:56, 30 January 2014 (UTC)

## File:MH370 map.svg

An excellent image, Cmglee. But, as my secondary school Geography teacher used to remind us (with tedious regularity): "a map isn't a map without a compass and a scale." I'm not sure you would necessarily agree with that statement. But - is there any chance of you adding a scale? (I think we can guess China is in the North). Many thanks. Martinevans123 (talk) 15:12, 11 March 2014 (UTC)

Thanks for your feedback, Martinevans123. They are valid points for large-scale maps indeed. On maps covering a significant part of the world's surface, however, having a scale would be misleading, as different parts of the map have different scales (the usual problem of representing a spherical surface on a flat plane). I also think that this part of the world is well-known enough that the reader can surmise that north is up. Many other maps on Wikipedia and other sites do not indicate north unless the direction was unobvious or "up" wasn't north for some reason. cmglee (talk) 20:46, 11 March 2014 (UTC)
Thanks. "I think we can guess China is in the North". I see we already have another contributor at that article. I thought your map was very clear. Martinevans123 (talk) 22:14, 11 March 2014 (UTC)

## WP:MOSMATH

This file uses hyphens instead of minus signs and fails to italicize variables. Thus instead of

n

we see

-n

Can that be fixed? 128.101.152.68 20:58, 10 April 2014 (UTC)

Done! cmglee (talk) 12:09, 11 April 2014 (UTC)

## Wikimania 2014

Deryck Chan (talk) 20:21, 17 August 2014 (UTC)

Thanks, Deryck. Hope you had a good week! cmglee (talk) 23:37, 17 August 2014 (UTC)

## Commons:Photo challenge/2014 - September-October - Big and small/Voting

You have voted 2/3 twice. Please can you amend your vote to have at most one of 3/3, 2/3 and 1/3 votes. Can you do this soon or I may have to remove your votes in order to determine the winners. Thanks. -- Colin (talk) 22:35, 1 December 2014 (UTC)

## Confusing homonym diagram.

Hello. The diagram you made https://en.wikipedia.org/wiki/File:Homograph_homophone_venn_diagram.svg is a bit confusing. I think it was a mistake to include synonyms in your diagram, as a homonym can never be a synonym. (Homonyms have different meanings by definition) I can see why you wanted to include synonym in your diagram, but it makes the whole thing quite confusing. For instance, it looks like heteronyms are not also homonyms, which is not the case. I think a better idea for a clearer diagram is to not include synonym at all, and instead nest everything under homonym.

I have many an example to show what I mean:

As you can see the diagram that I have made is not nearly as beautiful as yours. That is why I am contacting you instead of just replacing your diagram. Maybe if you have the time and willpower you can one day update your diagram.

Original rendition
Hello! Thanks for your note. I drew the graphic based on File:Homograph_homophone_venn_diagram.png which also has synonyms. I don't know enough about linguistics to make a judgement call or find appropriate reference. If you can get a consensus on the exact changes required from the English Wikipedia language reference desk, I'll upload a new version. Cheers, cmglee (talk) 23:25, 29 December 2014 (UTC)

## Manhattanhenge

Cmglee - I am fascinated by the analysis you did visualizing location of sunrise and sunset at Manhattanhenge. I am trying to establish how close Greenwich Village/Meatpacking District's Gansevoort Street is aligned to the equinox. Have just discovered it is an old Native American trail and having lived in the area 15 years have always noticed the equinox sunsets each Spring and Fall. More detail here at Bolton's 1922 map but if you have any advice, I would appreciate it. I was a little confounded by the Earth System Research Laboratory website you linked to! Info use here w:Jackson Square Park WindingRoad (talk) 16:09, 29 March 2015 (UTC)WindingRoad

Thanks, WindingRoad. That's an interesting question! I took a screenshot of the area on Google Maps and pasted it in an image editor. I found that rotating it clockwise by 1 degree made Gansevoort St horizontal, so it would be most closely aligned on Mar 22, 2015 (solar declination = 0.84°) according to http://www.esrl.noaa.gov/gmd/grad/solcalc . Even better, the next street, Horatio St is almost exactly east-west, so it should exactly align during the equinox — though the trees may spoil the view! cmglee (talk) 19:41, 30 March 2015 (UTC)
Cmglee - thanks for doing that analysis, very helpful, very interesting. I just posted some pics I took before (believe it or not) i fully realized this was so close to the equinox! Unfortunately they are off by a few days, but I think you'll find them interesting, too!
Well done, WindingRoad. Excellent photos, especially the last one! cmglee (talk) 08:57, 26 April 2015 (UTC)

Could you adjust File:Ordnance Survey National Grid.svg to use a different landmark? It looks to me as if Nelson's Column, for example is slap on the square border, possibly edging over into the next square (TQ 30 80). Perhaps the nearby equestrian statue marking the site of Charing Cross would be suitable.

Rich Farmbrough, 07:06 17 January 2016 (GMT).

Hello, Rich. I like your choice of the statue as it's traditionally where distances to London are measured, as I just found out. However, its grid reference, TQ 30037 80373 still puts it at the edge of a square. I'll think about how I can better present it. Cheers, cmglee (talk) 15:47, 17 January 2016 (UTC)
P.S. This might sound silly, but I like "TRAFALGAR SQUARE" because "TQ" is hidden in it. I suppose I could also pick Buckingham Palace because it has "The Queen"!
I like the TQ/Trafalgar Square too, hadn't thought of "The Queen"! Rich Farmbrough, 22:58 18 January 2016 (GMT).
Thank "Q"!  ͡°  ͜১͡°

## APOD :)

Hey there, I see your work on APOD today. Congratulations! Reyk (talk) 06:32, 25 January 2016 (UTC)

Many thanks for bringing it to my attention, Reyk. It's a great honour! ୯ ͡°  ͜১͡° ੭ cmglee (talk) 13:35, 25 January 2016 (UTC)

Interesting graphic! Thanks. I was wondering if the abundance distribution of the elements could be laid over their sources too? That is how much from where from what? Ali, Oakland, CA —Preceding unsigned comment was added by 2601:643:8100:8A41:CD6B:6E94:F8FC:D3B8 (talk) 02:42, 26 January 2016 (UTC)

Thanks, I think it would be difficult to do so without cluttering up the table. Moreover, is it abundance in the Universe, Earth's crust, the human body, etc? Anyway, here are some diagrams you might be interested in:
Cheers, cmglee (talk) 14:19, 26 January 2016 (UTC)

Posting your image and caption on my blog, any credit you'd like me to attach besides "Cmglee"? I think it is worthy of it.- http://stanflouride.com/2016/01/25/we-are-star-stuff/ —Preceding unsigned comment was added by 192.195.81.149 (talk) 04:23, 26 January 2016 (UTC)

Thanks for asking — the standard Wikimedia credit line below will do. Cheers, cmglee (talk) 14:05, 26 January 2016 (UTC)
© CMG Lee / http://commons.wikimedia.org/wiki/file:nucleosynthesis_periodic_table.svg / CC-BY-SA-3.0

P.S. I like your collection of periodic tables, and thanks for your kind words, too!

Love it, but (to cmglee): I don't see an explanation for the brown color? Is that missing from the key? --Jasperjon (talk) 13:09, 24 October 2017 (UTC)

Huge thanks for the updated graphic (https://upload.wikimedia.org/wikipedia/commons/3/31/Nucleosynthesis_periodic_table.svg) -- 06:04, 20 November 2017 (UTC) —Preceding unsigned comment was added by 71.234.176.2 (talk) 06:05, 20 November 2017 (UTC)

## Nucleosynthesis

Nucleosynthesis_Cmglee_1080.jpg

Love the concept, well played! Small correction/suggestion: Technetium (Tc) should be L (large star) and M (man-made), since it has no stable isotopes. —Preceding unsigned comment was added by 65.128.187.16 (talk) 13:04, 26 January 2016 (UTC)

Thanks! I'm aware of several disputes. Please have a look at file_talk:nucleosynthesis_periodic_table.svg#Chart_accuracy Cheers, cmglee (talk) 14:28, 26 January 2016 (UTC)

## B, Li & Be

Isn't it more likely that these three, being close to He & H, are outliers of the big bang? -jlw

Not sure I understand the question, but if you're asking whether these elements were produced by the Big Bang, I don't have enough knowledge to answer the question. Try asking at en:Wikipedia:Reference_desk/Science. Cheers, cmglee (talk) 12:52, 28 January 2016 (UTC)

## 3d Bubble Chart

Hi,

I am really interested to know the name of the program you used to create that 3d bubble chart of life expectancy for males vs females. Any support either in terms of the code or any other information is gretaly appreciated. Thanks. You can reach me at: stat4everman@gmail.com

John

Hi John, the program is a one-off Perl script embedded in the SVG file itself. If you open http://upload.wikimedia.org/wikipedia/commons/b/b2/Comparison_gender_life_expectancy_CIA_factbook.svg in a text editor, from near line 4000 to the end of the file is an SVG comment ( <!-- --> ) containing the script. Extracting and running it generates the SVG file. I've since moved on to Python — see en:user:cmglee#animal_hearing_frequency_range.svg_.E2.98.8E_26_Oct_2014 — but if you've any questions about this script, just ask! Cheers, cmglee (talk) 13:23, 29 January 2016 (UTC)

## Thanks for the awesome graphics!

Hi!

I recently used parts of this graphic in a term project: https://commons.wikimedia.org/w/index.php?curid=35180401

And I just wanted to say: thanks for the awesome graphics you do for wikipedia! :) SpeedOfDarkness (talk) 09:51, 18 April 2016 (UTC)

Hi @SpeedOfDarkness, thanks for your kind words. Glad to be of help, and best wishes in your project! cmglee (talk) 10:03, 18 April 2016 (UTC)

## File:A Liter of Light 2 YouTube frame.jpg

 File:A Liter of Light 2 YouTube frame.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!

MichaelFrey (talk) 21:25, 7 May 2016 (UTC)

I am very sorry for this deletion request. Honest.
It looks to me as if "GMG NETWORK ORG" was not careful when uploading this video to youtube.
Note: We do not own the rights to this video, our goals are to promote this cause and do not make any financial gain from this video.
If "GMG NETWORK ORG" does not own the rights of the video,"GMG NETWORK ORG" can not release it under a creative commons license.
If it was released at some point under Creative Commons License, "GMG NETWORK ORG" forgot the attribution/source.
In both cases, we can not use the frame grab.
I am very very sorry. It is a valuable picture illustrating an idea, that makes the world a better place.
That is why am sad and sorry to request the deletion. But with the unknown original source, the image it self is a copy right risk.
I am very sorry.
-- MichaelFrey (talk) 21:40, 7 May 2016 (UTC)
No worries; that's fine by me. I found it on Google Image Search using the Labeled for reuse with modification option, so have no vested interest in it. Cheers, cmglee (talk) 11:57, 12 May 2016 (UTC)

## File:Comparison optical telescope primary mirrors.svg

Hi, your graphic of the large primary mirrors is really well made and accurate. It lacks a little something though, the Five hundred meter Aperture Spherical Telescope (FAST) which China is building and will complete in 2016. I figure it won't be too difficult to add since it's just a curved line at the bottom. I don't know if it will even be relevant because it will maybe look like a straight line, but since it will be the largest telescope in the world, I think it has its place. Thank you and good job on your great graphics. --Piponwa (talk) 21:19, 11 May 2016 (UTC)

Hi @Piponwa, Thanks for bringing FAST to my attention. It's a radio telescope whereas the graphic is about optical telescopes. Arecibo was put in as a comparison because it is well-known. I'll keep it in mind if I decide to make one on radio telescopes. Cheers, cmglee (talk) 11:53, 12 May 2016 (UTC)

Doing one on radio telescopes would definitely be cool, I feel like the more quality material there is, the more people are going to be excited about telescopes. Thanks for all that you do! --Piponwa (talk) 15:19, 14 May 2016 (UTC)

## Good work

I've been looking through the SVG images you've created and they're very impressive. I actually saw the comparison of bridges one in the past and was surprised SVGs could do that. As if the technical details weren't cool enough, the way you implemented them makes them really useful. Great experiments! Opencooper (talk) 06:24, 31 May 2016 (UTC)

Hi @Opencooper, Thanks for your kind words! If you're attending Wikimania 2016, I'm having a talk and hands-on session on Saturday, 25 June. Cheers, cmglee (talk) 12:23, 31 May 2016 (UTC)

## A small mistake?

First, thank you for your work.

Second, I think I might have found a small mistake in one of your additions: https://en.wikipedia.org/wiki/File:3D_shapes_in_isometric_projection.svg

In the cube there is a measurement that says sqrt(3) and I believe it should be 2*sqrt(3), I haven't checked the others, but I just happened to notice that.

Sorry if I am wrong.

Hi @Sempiedram, Thanks for your feedback. I think √3 is correct. One way of looking at it is to consider that the cube appears as a regular hexagon made of 6 equilateral triangles of side 1. Looking at the top-right one, its top most angle (the one just under the 3 of the √3 label) is 60°. As the top-right side (hypotenuse) has length 1, the horizontal width of the triangle is sin 60° = √32. Hence, the total width of two of these triangles back-to-back is √3. Cheers, cmglee (talk) 09:23, 13 June 2016 (UTC)

. The bug of translation is a thing we need to fix. Thank you. --Shangkuanlc (talk) 20:55, 22 June 2016 (UTC)

Hi @Shangkuanlc, Thanks for translating it! Clicking (to destroy a missile) works on my Chrome browser, but the text encoding is messed up. I'll see what I can do... cmglee (talk) 13:45, 23 June 2016 (UTC)
I think it's fixed... Can you please see if it's fixed on your PC? Ta, cmglee (talk) 15:39, 23 June 2016 (UTC)

## File:Gordon logo.svg

Yours sincerely, Josve05a (talk) 16:06, 23 June 2016 (UTC)

## Spherical panorama

Hi,

I'm curious- what device did you use to take the above image? Andy Mabbett (talk) 19:19, 10 July 2016 (UTC)

Hi Andy,
Just an old Nexus 7 (using the Photo Sphere mode of the native Google Camera app, then converting to a Tiny Planet projection on the same app). Alas, there are plenty of misstitches due to my handholding it... Are you planning to snap some yourself?
Cheers,
cmɢʟeeτaʟκ 19:48, 10 July 2016 (UTC)
Thanks. Yes, I'd like to have a go. You might like to use Category:Taken with Nexus 7. Andy Mabbett (talk) 10:54, 12 July 2016 (UTC)
Good idea – done!
You're probably aware of these but if not, here are some techniques for better results:
1. Choose scenes far from the camera to reduce parallax – best are landscapes, but at least stand up and stay away from railings.
2. If possible, choose scenes without obvious geometric patterns e.g. large floor tiles and roof beams.
3. Avoid taking a shot when moving people are in the scene to avoid half bodies.
4. Pick an identifyable point on the ground and try to keep the camera over it.
5. Pivot around the camera rather than standing still and turning the body; I grasp the device around the lens with one stationary hand and use the other to swing it around the pivot.
Shame I discovered them only as I went along, but I suppose one gets better with practice... Good luck :-) cmɢʟeeτaʟκ 11:31, 12 July 2016 (UTC)
Useful tips, thanks - why not write them up at, say, Commons:Polar coordinates panoramics, so others can benefit? Also, sadly, the Google Camera page on the app store tells me "Sorry! This content is not available in your country yet." :-( Andy Mabbett (talk) 20:06, 16 July 2016 (UTC)
I could do that, but I'm uncertain about Commons' policy; I know Wikipedia discourages How-to articles. Strange it complained about the country; mine came preinstalled. I suppose you could sideload it with adb, or find another app? Alternatively, just snap enough coverage and use AutoStitch (easier but less control) or Hugin (lots of options but a pain to use). After watching a clip on Hololens today, I had a thought that spherical panoramas would be a useful application, if only there was a good way of navigating between panoramas. Cheers, cmɢʟeeτaʟκ 20:26, 16 July 2016 (UTC)

Hello Cmglee!

I love your image of "Nucleosynthesis_periodic_table.svg" and would like to promote it on my Twitter account for public educational outreach, but with the character limitation, instead of using the image URL, could I download and than upload your image and insert the following in the Twitter text box "A Great Nucleosynthesis Periodic Table By Cmglee CC BY-SA 3.0" @annafrebel @jina_cee #FirstStarsV" Would this suffice?

I would also like to add your image to my Science Facebook page but would be able to add the full attribution since I'm not limited to characters.

You are more than welcome to visit both of my social media sites at these links.

Thank you for your time and support.

Tracy Karin Prell

— Preceding unsigned comment added by Tracykarin (talk • contribs) 15:38, 07 August 2016 (UTC)
Hello Tracy!
Thanks for kind words and for checking with me. I'm happy to grant you special permission for you to promote it as you've described. It's great to have science enthusiasts like you to make knowledge more accessible. Keep up the good work!
Cheers,
cmɢʟeeτaʟκ 22:52, 7 August 2016 (UTC)

## Quality Image Promotion

--QICbot (talk) 05:40, 28 October 2016 (UTC)

## https://commons.wikimedia.org/wiki/File:90855main_dispcrft.svg

Fixed Base64 typo

I know it's been years since you did this image. I hate to tell you this, but the spacecraft doesn't render. How are we supposed to see the labels and the scale comparision without a spacecraft?!?!? This image is literally USELESS in its current state!!! 8.40.151.110 00:59, 24 November 2016 (UTC)

Fixed. Thanks for bringing it to my attention, cmɢʟeeτaʟκ 18:29, 24 November 2016 (UTC)

## Quality Image Promotion

--QICbot (talk) 05:17, 22 December 2016 (UTC)

## Permission to use figure in a book.

Dear Cmglee,

I am working with Prof. Steven LaValle to help obtain permissions for borrowing figures or pictures in his upcoming book Virtual Reality, to be published by Cambridge University Press. The book is online here:

We are hoping to include the picture of yours (https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Comparison_double_triple_buffering.svg/320px-Comparison_double_triple_buffering.svg.png) in this book (Chapter 7, Figure 7.18). Could we please have your permission for this? Thank you.

Adam Warkoczewski —Preceding unsigned comment was added by 83.25.191.254 (talk) 13:58, 22 January 2017 (UTC)

Certainly, Adam; feel free to use it under the standard Creative Commons Attribution-Share Alike 3.0 Unported terms: https://creativecommons.org/licenses/by-sa/3.0/deed.en . I'd appreciate if you could link back to my user page http://en.wikipedia.org/wiki/user:cmglee . Best wishes for your publication! cmɢʟeeτaʟκ 02:33, 26 January 2017 (UTC)

## Torre Espacio request

Rotating model of Torre Espacio with floors colour-coded by designation. In the SVG file, hover over a floor to highlight it.

Torre Espacio is a 230 m skyscraper located in Madrid that has a floor plan that takes into acccount sinus and cosinus functions [2] To learn more [3]

Can you make an svg file similar to this [4] so it shows the floorplan for different floor numbers? Or maybe a gif with all florrplans. See official website, swf file and this floorplans in PDF

I know its lots of work, but I will be very thankful. This is 100% only for Wikipedia. Triplecaña (talk) 11:56, 5 February 2017 (UTC)

Thanks for bringing it to my attention. I'll study its feasibility. Cheers, cmɢʟeeτaʟκ 07:05, 7 February 2017 (UTC)
Hello @Triplecaña: I've made a rotating SVG model as on the right. What do you think? Cheers, cmɢʟeeτaʟκ 17:09, 2 April 2017 (UTC)

## Seven wonders of the world

Fantastic work on File:Ancient_seven_wonders_timeline.svg, I am highly pleased with this. Nicolas Perrault III (talk) 22:07, 13 February 2017 (UTC)

Hi @Nicolas Perrault III, Thanks for the compliment. Glad you've found it useful! Let me know if you've any suggestions for improvement. cmɢʟeeτaʟκ 12:16, 16 February 2017 (UTC)

## Requested updated of File:North Korean missile range.svg

If you have the time to update the above file with more up to date ranges from the BBC ( https://ichef.bbci.co.uk/news/624/cpsprodpb/26F5/production/_88837990_north_korea_missile_ranges2_map624new.png ), that would be appreciated

Many Thanks,

-Ethan

— Preceding unsigned comment added by Ethanmayersweet (talk • contribs) 06:47, 29 April 2017 (UTC)
Good catch, Ethan. I've replied on File_talk:North_Korean_missile_range.svg#Update maximum ranges. Cheers, cmɢʟeeτaʟκ 16:22, 29 April 2017 (UTC)

## A barnstar for you!

 The Brilliant Idea Barnstar I'm blown away by the bredth and clarity of your comparison of equal area projections. It's an incredibly helpful diagram. Cheers! —jameslucas ▄▄▄ ▄ ▄▄▄ ▄▄▄ ▄ 23:38, 30 April 2017 (UTC)

Many thanks, @JamesLucas: glad you found it useful! By the way, I was curious about the code linking to your talk page. I doesn't seem to be Morse code and interpreting it as 22 (101102) didn't lead me anywhere. Care to enlighten me? cmɢʟeeτaʟκ 14:56, 4 May 2017 (UTC)

It's a "prosign"! This particular one is KN, with the overscore denoting that K's dahdidah is followed directly by N's dahdit without the standard pause. There are a number of such prosigns, and the meaning of this one is "go ahead, specific named station", which is a less-than-perfect fit, since linking to my Talk page is perhaps more akin to inviting someone over to a different frequency, but I think the overall tone of the message is right. —jameslucas ▄▄▄ ▄ ▄▄▄ ▄▄▄ ▄ 11:45, 18 May 2017 (UTC)
Thanks, James. I never knew there were more characters to Morse code. Glad to have learnt something new! cmɢʟeeτaʟκ 18:47, 26 May 2017 (UTC)

## File:QueenYangIf74.jpg

 File:QueenYangIf74.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!

Pitpisit (talk) 12:50, 25 May 2017 (UTC)

## Pyramid SVG

I really admire your Comparison_of_pyramids.svg and Comparison_of_pyramids_SMIL.svg images of many of the most famous pyramids around the world.

I don't have any experience with SVG files, but was wondering if you might consider updating them to include Monk's Mound at the UNESCO Cahokia site. It is considered the largest pre-Columbian site of its size north of Mexico. It has been damaged considerably by less-sensitive early European settlers, but Monk's Mound remains. It stands at about 30 meters so on the smaller side by height, but the base is similar in size to the Great Pyramid. Monk's Mound was also probably taller when the area was inhabited prior to European settlement, given that it is earthen like some of the Chinese pyramids.

Thanks for your work and consideration, --24.148.29.243 23:47, 30 July 2017 (UTC)

Thanks for the compliment, and bringing Monk's Mound to my attention. It looks quite interesting and I'll consider adding it to the graphic when I next update it. Cheers, cmɢʟeeτaʟκ 12:27, 2 August 2017 (UTC)

## Animations on Fourier Series

Thank you for these animations! They make the concept crystal clear, thanks again! NickGarvey (talk) 04:22, 2 August 2017 (UTC)

Thanks, NickGarvey, and you're welcome! I'm glad you found them useful; in case you might be interested, there are two more animations at http://commons.wikimedia.org/w/index.php?search=cmglee+fourier+gif . Cheers, cmɢʟeeτaʟκ 12:37, 2 August 2017 (UTC)

## Label on File:DiagnosticTesting_Diagram.svg

The label POR in the image should probably be FOR (false omission rate). —Preceding unsigned comment was added by 2620:0:1040:20:CD4A:219A:AC5B:E28D (talk) 12:36, 6 September 2017 (UTC)

Thanks,   Done cmɢʟeeτaʟκ 18:52, 10 September 2017 (UTC)

## Eight days into Wiki Loves Monuments

 Thank you for taking part in Wiki Loves Monuments UK Thank you for submitting your photos to the competition, it really helps improve our coverage of historic sites. Photos from this year are already being used on Wikipedia - though it may take a while for the monuments map to catch up so don't be disheartened if some pins haven't turned blue yet. WLM runs until the end of the month, so please add more and invite other people to take part. The UK is closing in on 1,000 uploads putting us just behind the United States in 14th place out of 49 countries taking part. Let's see if we can jump a few places! If you have any questions, feel free to leave a message here or contact me directly at richard.nevell@wikimedia.org.uk. Richard Nevell (WMUK) (talk) 12:51, 8 September 2017 (UTC)

## Let's make Commons Conference a reality

Hello Cmglee,

I'm writing you as one of the most advanced SVG creators on Commons. Since a while now, the idea of a dedicated Commons conference has been floating around. But since the last Wikimania concrete steps have been taken to actually make it happen next year. If you're interested in participation or maybe willing to help organize the first ever Commons Conference, I invite you to check out the project page and add your ideas; or just show your support for the idea, by signing up.

Cheers,

--MB-one (talk) 09:04, 10 September 2017 (UTC)

## Box-Muller Transform SVG

Fixed

Hi Cmglee,

Firstly, thanks for the excellent SVG of the Box-Muller transform.

Would it be possbile to have the round points (U0, U1) start at 0 and go to 1, so that (0,0) and (1,1) can be selected as points? That way it's easier to see the transformation because cos(0) = 1 and sin(0) = 0.

Delboie

(Derek)

— Preceding unsigned comment added by Delboie (talk • contribs) 09:25, 18 September 2017 (UTC)
Thanks, Delboie. Good idea! u1 must be larger than zero, otherwise the point will be infinitely far from the centre. Cheers, cmɢʟeeτaʟκ 12:07, 18 September 2017 (UTC)

## An update from Wiki Loves Monuments UK

 Thank you for taking part in Wiki Loves Monuments UK More than 300 people have contributed a total of 4,000 photos to this year's competition and we wanted to say thank you for helping us get this far. The competition runs until the end of September, and you can upload as many images as you want - so feel free to document some more sites. Or why not go through your old images to see if you have any others that could be submitted? Since you've already submitted some pictures to the competition, you might be interested in the banner mini-contest; to take part you crop your images to a 7:1 and upload a new version. You can find out more about how to do that here. In the meantime, we hope you enjoy the competition and share it with others! MediaWiki message delivery (talk) 12:24, 22 September 2017 (UTC)}

 Some contents have been listed at Commons:Deletion requests so that the community can discuss whether they should be kept or not. We would appreciate it if you could go to voice your opinion about this at their entry.If you created these pages, please note that the fact that they have 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 them, 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!

Affected:

Yours sincerely, Themightyquill (talk) 15:52, 24 October 2017 (UTC)

## Nucleosynthesis periodic table

Hi Cmglee,

I left a note for you over on the talk page for this, just in case there is no automated alert for you. (I'm a little new to Wikipedia editing.) https://commons.wikimedia.org/wiki/File_talk:Nucleosynthesis_periodic_table.svg

— Preceding unsigned comment added by Geckzilla (talk • contribs) 05:10, 26 October 2017 (UTC)

Geckzilla (talk) 05:10, 26 October 2017 (UTC)

## Signature

Hi, Could you please fix your signature, so that the link works (and preferably that it shows some characters). Thanks, Yann (talk) 18:04, 6 November 2017 (UTC)

Done Interesting that en:user:cmglee didn't work but w:user:cmglee does. Cheers, cmɢʟee ⋅τaʟκ 14:05, 7 November 2017 (UTC)

## Diagram of Integrating Sphere use in measuring transmittance and reflectance

In the first part of the figure, dealing with transmittance measurement, shouldn't the bottom port simply be plugged (i.e. covered with the same material as the rest of the inside of the sphere) rather than being fitted with a reflectance standard? 72.89.126.128 08:09, 8 November 2017 (UTC)

Hi @72.89.126.128, I assume that the reflectance standard is opaque and fills the port, in which case, plugging it is redundant. If it weren't, plugging it would be a good idea. Fig. 6 of http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/archives/2013/ERDP-2013-02/metadata gives an example of this use. Cheers, cmɢʟee ⋅τaʟκ 10:11, 8 November 2017 (UTC)

## Use of an image for an open access (cc4.0) /printed book

Dear Cmglee,

Thank you for uploading the image of the Aerial view of Cambridge city center.

We would like to use this image in a chapter of an edited book named “Geographies of the University” which will be available through the Creative Commons Attribution 4.0 International License as e-book in open access, and also as a buyable hardcover version. The book is part of the series and project “Knowledge and Space” at Heidelberg University (http://www.knowledgeandspace.uni-hd.de/).

We would like to ask for your permission to use this image within a chapter of the book that deals with change in the architectural concepts of university buildings. Of course you will be credited as copyright holder and photographer. We would be grateful if you could contact us at knowledgeandspace@uni-heidelberg.de.

Thank you very much, and best regards, Laura Suarsana Department of Economic Geography, Heidelberg University —Preceding unsigned comment was added by 2.247.247.93 (talk) 09:31, 14 November 2017 (UTC)

Dear Laura, A pleasure!  Can you please link me to the book? The standard Wikimedia credit line below should do. Cheers, cmɢʟee ⋅τaʟκ 00:31, 15 November 2017 (UTC)
© CMG Lee / http://commons.wikimedia.org/wiki/file:cmglee_Cambridge_aerial.jpg / CC-BY-SA-3.0


Dear Cmglee, Thank you very much! We will link you to the book accordingly! Would we also have your permission for the image of the Library of Cambridge Trinity College?

Thank you, and best regards, Laura —Preceding unsigned comment was added by 84.58.181.97 (talk) 13:13, 17 November 2017 (UTC)

No problem, Laura – please use a similar credit line for the library picture. Thanks, cmɢʟee ⋅τaʟκ 06:54, 1 December 2017 (UTC)

## File:Hybrid image decomposition.jpg

 File:Hybrid image decomposition.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!

Ccaps (talk) 21:00, 19 November 2017 (UTC)

## Dice sum central limit theorem

I'm doing a project and would really like to make graphs similar to the one you made on the dice sum central limit theorem - on the central limit theorem page. Which software did you use to create it?

— Preceding unsigned comment added by Justdrinkthewater (talk • contribs) 15:54, 23 November 2017 (UTC)
Hi @Justdrinkthewater, The SVG was generated by a custom Perl script embedded as a comment in the SVG file itself. Extract the lines after the line "<!-- Perl script to create above; please do not remove." in http://upload.wikimedia.org/wikipedia/commons/8/8c/Dice_sum_central_limit_theorem.svg (except for the last line) and save it as a .pl file. Hope that's useful, cmɢʟee ⋅τaʟκ 13:55, 14 December 2017 (UTC)

## Permission to Use Diffraction Limit Graphic

Dear Cmglee,

I'd like permission to use the graphic at the URL below in a popular science trade bookon Black Holes for Norton. Their standard language is in the next paragraph,

Sincerely, Chris Impey, Professor of Astronomy, University of Arizona

I am requesting your permission to reproduce, on a non-exclusive basis, the material identified below (collectively, the “Licensed Content”) in all editions and formats (including, without limitation, all print and electronic editions as well as editions and formats, if any, made for use by the blind or physically handicapped) of a work by me tentatively titled Einstein’s Monsters (the “Work”) which is currently scheduled to be published by W.W. Norton and Company, Inc. (the “Publisher”) on October 2018. The rights granted in and to the Licensed Content shall include distribution of the Work and incidental promotion by the Publisher and its and my licensees in all languages throughout the world. For good and valid consideration, receipt and sufficiency of which is hereby acknowledged, you grant me the rights contained in this agreement and specifically acknowledge and agree that there shall be no royalties or other monies due to you from me, Publisher, or Publisher’s licensees in connection with any use of the Licensed Content except as herein set forth.

https://commons.wikimedia.org/wiki/File:Diffraction_limit_diameter_vs_angular_resolution.svg —Preceding unsigned comment was added by 73.24.181.34 (talk) 18:04, 10 December 2017 (UTC)

Dear Chris,
Certainly. Please include the standard Wikimedia credit:
© CMG Lee / http://commons.wikimedia.org/wiki/file:diffraction_limit_diameter_vs_angular_resolution.svg / CC-BY-SA-3.0

Thanks,
cmglee

## Permission to use a graphics

Dear Cmglee, I'm looking for permission to use your graphic on telescope diffraction limit vs angular resolution in a trade book on black holes I am writing for Norton. Happy to give you whatever credit you prefer, and I can send the normal publishing terms describing the book. You can reach me directly at cimpey@as.arizona.edu

Sincerely,

Chris Impey Professor of Astronomy University of Arizona —Preceding unsigned comment was added by 150.135.165.92 (talk) 00:11, 15 December 2017 (UTC)

Dear Chris,
Certainly. Please include the standard Wikimedia credit:
© CMG Lee / http://commons.wikimedia.org/wiki/file:diffraction_limit_diameter_vs_angular_resolution.svg / CC-BY-SA-3.0

Thanks,
cmglee

## Easter date

Hello Cmglee, I would like to let you know that I have just modified your graph of Easter date. The reason was you had swapped the graph of Eastern and Western Easter. Best regards — Draceane talkcontrib. 19:48, 18 December 2017 (UTC)

Thank you very much, Draceane. You're absolutely right! I've updated the embedded script. Best regards, cmɢʟee ⋅τaʟκ 20:28, 27 February 2018 (UTC)

## Hawai CSS

Hello Cmglee,

I just discovered your CSS-animated Haiwaian map. As a cartographer I find this purely fabulous. If by chance you have or could write a tutorial on how to convert stack of svg layers into such CSS animated svg, the cartographers of the en:WP:GL/MAPS would likely love it, learn from it, and experiment with it on other maps. --Yug (talk) 16:09, 28 December 2017 (UTC)

Thanks, Yug. I'm unsure how much detail I should go into, so let me know if you'd like me to elaborate on the steps below:
1. Extract paths of contours from an existing SVG, File:Hawaii_Island_topographic_map-en.svg in this case.
2. Assign each path to a class with CSS3 animation (360° rotation).
3. Scale each rotating class by half vertically and progressively translate them to give the appearance of 3D.
4. Add special effects e.g. the wavy surface denoting sea level.
You may also be interested in my experiments below:

Cheers,
cmɢʟee ⋅τaʟκ 07:50, 17 January 2018 (UTC)

## File:Comparison house brick size.svg

Thank you for creating a graphic for the different brick sizes over the world. One correction that needs to be made is changing the word "nominal" to "actual" since that is what is shown in the associated table. Nominal is the actual size of brick plus a mortar joint thickness. The table lists actual sizes. Also, you should consider deleting the word "house" brick since the brick shown in the table and your graphic can be used in buildings as well as homes.

— Preceding unsigned comment added by Bricktrimble (talk • contribs) 15:49, 22 January 2018 (UTC)
Done I've updated the caption and description. Thanks, cmɢʟee ⋅τaʟκ 13:09, 9 February 2018 (UTC)

## French version of chart comparing telescopes

Hi Cmglee,

I am illusrator and webmaster of an educational website deciated to astronomy. Should it be possible to get a Photoshop.psd version with layers at least in height 800 pixels of the chart displayed in english at https://commons.wikimedia.org/wiki/File:Comparison_optical_telescope_primary_mirrors.svg

I would like to translate it into French.

Thanks to reply at Luxorion AT outlook dot com

or via the website Luxorion easy to find on the web. —Preceding unsigned comment was added by 2001:7E8:CC44:4200:5520:D6A8:652F:AA32 (talk) 11:57, 16 March 2018 (UTC)

Hi Luxorion, as it's an SVG file, it's not trivial to convert it into separate layers of a PSD file. You could try importing it into Illustrator, but I'm unfamiliar with the process. Cheers, cmɢʟee ⋅τaʟκ 00:47, 19 March 2018 (UTC)

## Thanks for Central Limit Theorem SVG

I made this derived image from yours: https://commons.wikimedia.org/wiki/File:Dice_sum_central_limit_theorem_vertical.svg. The SVG code was well organized, making it really easy to rearrange it the way I wanted. Thanks! --Doradus (talk) 12:19, 29 March 2018 (UTC)

Thanks, Doradus. I make SVG by hand, so it tends to be more well-structured than output from Inkscape etc. I look forward to seeing what you'll do with your version. Cheers, cmɢʟee ⋅τaʟκ 12:46, 29 March 2018 (UTC)

## Requesting help to fix SVG

Hi there, it's been a while. Since it's election season in Malaysia, I've emerged from the proverbial cave to upload another SVG related to the topic. However, the text doesn't look quite as well as this one. Have they changed the SVG rendering, or have I left out something in the stylesheet or XML namespace?

Also, I'm sure some parts of my SVG code are redundant, such as reusing colours. I couldn't think of an elegant way to do it without breaking the neat format you have introduced. Can you help on this? Thanks a bunch! Hytar (talk) 07:44, 16 April 2018 (UTC)

Hi Hytar, thanks for updating the graphic – good work! I've updated the file after
1. Moving the class to the top of the stylesheet – there's a small chance that the stylesheet has a bug before the word class preventing the class from being parsed and the text reverting to the default style (I don't see any bugs when eyeballing it,
2. Turning style tags with colours into classes, and
3. Aligning columns of numbers etc
I've no idea why the font looks different even though both SVG specify 14px normal Bitstream Vera Sans, thought I've previously encountered Wikimedia thumbnails being broken, often because the XML header was incorrect (it's fine in this case) or the renderer had temporary issues. The latter often cleared up after a few days, so it might be worth clearing the cache and rerendering it by adding ?action=purge at the end of the URL.
As a side note, I normally specify "Helvetica,Arial,sans-serif" instead of Bitstream Vera Sans as I think it's more likely that users have these fonts, should they wish to view the SVG on their browser.
Hope that helps, cmɢʟee ⋅τaʟκ 13:03, 16 April 2018 (UTC)
P.S. I find the colours (especially the faded versions) of PKR, Warisan and Independent, and DAP and PPBM hard to distinguish. Not knowing Malaysian politics well, I cannot recommend alternative colours, but how about increasing their colour saturation, or adding subtle versions of their symbols in the hexagons?
Thank you for your fixes! I have uploaded another version after changing the colours a little. At first I'm basing all colours on this template, but the faded colours (under "/shading" in templates) are more suited as background for text, and seemed too bright for map use. Hence I stuck with the previous colour template from 2008 and adjusted from there. I might tweak them some more to find the "best" palette, but for now I'll put the image into this article.
As for the text, I removed other properties deemed extraneous and used "sans-serif" as font. They are readable even though they look a little off, so I'll give it a pass. Hytar (talk) 18:14, 16 April 2018 (UTC)
Thanks, Hytar. That's clearer. I'd prefer to specify a widely-available font, though. Otherwise, people who have a very different-looking font assigned as sans-serif will see it garbled. I think Helvetica,Arial is a good choice for wide support and acceptance, and neutral appearance.
A nitpick: I noticed that "general election" is in lowercase where it's in title case in the previous image. Cheers, cmɢʟee ⋅τaʟκ 12:05, 17 April 2018 (UTC)
I prefer it to be lower case "general election" following the convention on Wikipedia article titles. That means I need to change the 2013 file, which I try not to; but you can change it if you want, including your suggested font change.
Eventually I'll touch the parliament "changes" file and will take your suggestion into account. In the meantime, I need to work on three files:
• State assembly/DUN changes file — more work due to increased Sarawak seats in 2016.
• Base SVG for 2018 parliamentary election — easier because seat number is retained, only name changes and additional parties required.
• Base SVG for 2018 state assembly elections — "changes" file in item 1 plus increased Sabah seats.
Not sure how much you could help on these. Hytar (talk) 12:47, 17 April 2018 (UTC)

## Changes in File:Bayes theorem visualisation.svg

Hi Cmglee,

You have changed File:Bayes theorem visualisation.svg so that a description update in articles is required, but the description have been updated in one article only, and in enwiki only.

If you make such changes to an image that require description update, please remember to update descriptions in all articles that use the image, in all languages. Or create a separate new image and replace the old one in an article(s) you want to update.

Kind regards,

--Olexa Riznyk (talk) 05:32, 22 April 2018 (UTC)

Hi Olexa Riznyk, I see your point. I had thought that not much has changed, such that captions need to be updated. I'll run through where the image is used and see what I do to update the captions. Thanks for letting me know, cmɢʟee ⋅τaʟκ 11:38, 1 May 2018 (UTC)

## µ symbol not png-ified in Comparison_CD_DVD_HDDVD_BD.svg

Hi, just a quick note to say the µ symbol used in File:Comparison_CD_DVD_HDDVD_BD.svg doesn't appear to show up when mediawiki converts the SVG into a PNG. I don't know how easy it would be to get that fixed? Mike1024 (t/c) 18:16, 31 July 2018 (UTC)

Done — I've fixed it. Well spotted, Mike1024!  Cheers, cmɢʟee ⋅τaʟκ 19:10, 31 July 2018 (UTC)

## May I use your geostationary satellite image in a book?

I would very much like to use the following image:

I am putting together a book on http://roger-wood.com. The chapter that I am working on now is called "the Clarke Orbit". Your image would make a wonderful illustration for the chapter. If you are agreeable, I will need to know how to give proper attribution.

best regards Roger —Preceding unsigned comment was added by 2600:1010:B00C:80D1:5C2E:8B0D:E6FB:F624 (talk) 17:24, 15 August 2018 (UTC)

Thanks, and certainly, Roger. The standard attribution:
 © CMG Lee / http://commons.wikimedia.org/wiki/file:comparison_satellite_navigation_orbits.svg / CC-BY-SA-3.0

will do. I look forward to seeing your book. Cheers, cmɢʟee ⋅τaʟκ 20:09, 15 August 2018 (UTC)

Thank You! - Roger —Preceding unsigned comment was added by 2600:1010:B023:6623:ECDB:1D84:3A43:E091 (talk) 07:27, 17 August 2018 (UTC)

## Very impressed with images

I am curious about their creation. I read you've used Python in the past. Do you have any additional information, or some code of how you went about it? I've been interested in delving into a similar project myself. The possibility of controlling a complex visualization programmatically seems like it opens up many interesting doors. I was particularly impressed by the visualization of the binomial theorem (up to the 4th power). I'm well versed in software and Python, so please feel free to be as technical as necessary. Thank you very much for any information, and for the wonderful contributions. (talk) 04:18, 19 August 2018 (UTC)

Thank you for your kind words, ‪Rmiguez0‬. My Python code comprises standalone scripts which output SVG files with the Python code embedded. I wrote short articles on my almost-polyglot SVG-generating Python code and improved its handling of format strings on my Wikipedia user page.
I've since split the generated SVG into two parts: definitions and the main body. If you'd like to see an example, download https://upload.wikimedia.org/wikipedia/commons/2/2a/Plato_number.svg and look at its contents. Does the above help answer your question? Let me know if you'd like to work on an illustration together. Cheers, cmɢʟee ⋅τaʟκ 23:58, 19 August 2018 (UTC)

### File:Folding paper into thirds.svg

This message was added automatically by MifterBot (TalkContribsOwner), if you need some help about it please read the text above again and follow the links in it, if you still need help ask at the   Commons:Help desk in any language you like to use. --MifterBot (TalkContribsOwner) 13:40, 27 September 2018 (UTC)

## A barnstar for you!

 The Graphic Designer's Barnstar I was so impressed by one of your images (water phase diagram) that tracked other work you have done. Now I have a folder full of amazing images. I am a teacher (Earth Sciences) and like to use visual aids. Your work prompted me also to read enough about how to properly attribute CC... Thank you for the work you do. VBIK (talk) 16:39, 9 October 2018 (UTC)

Thank you so much, VBIK – that's the kindest thing someone has told me in a long time!

I love spreading useful knowledge and as I wrote on my Wikipedia user page, I'm eager to illustrate science, technology, architecture or mathematics, and always on a lookout for ideas. Please let me know if you know of anything that can be better explained in a diagram.

cmɢʟee ⋅τaʟκ 18:51, 10 October 2018 (UTC)

## Barnstar

 The Random Acts of Kindness Barnstar With many thanks for your lovely photographs of Friar House. SarahSV (talk) 23:20, 13 October 2018 (UTC)

Thank you very much, Sarah. I don't often get photography requests, so it was a fun mission! Cheers, cmɢʟee ⋅τaʟκ 08:55, 14 October 2018 (UTC)

## File:Volcanic eruption map.svg requires updating

Hi Cmglee,
Thank you for your contributions to Commons. I noticed File:Volcanic eruption map.svg is out of date. Could you update it? Thanks again. (And sorry for the somewhat blunt automated message!) OwenBlacker (talk; please ping me in replies) 16:45, 14 December 2018 (UTC)

## File:Voyager 2 velocity vs distance from sun.svg

Hi

Perhaps I'm wrong but the shape of the "solar system escape velocity" chart in blue looks wrong to me.

I tried to make a version in Excel and it looks quite different (I'm afraid I can;t manage to upload it). My chart is based on the escape velocity changing as one over the square root of the distance from the sun. I wonder if you have used some other formula?

Kind regards

David Shaffer

— Preceding unsigned comment added by Blitzer99 (talk • contribs) 17:49, 21 December 2018 (UTC)
Thanks, David. Your concern had already been raised on File_talk:Voyager_2_velocity_vs_distance_from_sun.svg. As I replied, since the data was taken from the graph at the NASA site, I am rather reluctant to change it without further evidence from an equally or more reliable source. (Other factors besides r² losses may affect it.) Cheers, cmɢʟee ⋅τaʟκ 03:11, 24 December 2018 (UTC)

## Planetary Elevation Models

Hi There,

I love the work you have done so far with the planetary elevation models so far, particularly Mars. Unfortunately the Wikipedia page for downloading the STL seems broken. Would it be possible for you to upload it to a separate file-sharing website for us to download?

(As a note on this, what program did you use to create it/can you change the height scale (currently at 20x) easily?) —Preceding unsigned comment was added by 62.252.189.68 (talk) 19:49, 7 January 2019 (UTC)

Thanks! It seems to be working for me. Note that each is over 20 MB, so it might take a while to download. Another way to view them is by clicking the viewstl button e.g.

I wrote a Python 2 script using PyPNG to create the STL from a heightmap in PNG format. Here is the source code. By changing the variables at the top of the script and the heightmap, one can tweak the model. The one you asked about is exaggeration. The script is described at en:user:cmglee#Mars_elevation.stl_☎_1_May_2018. Do give it a go!
Cheers, cmɢʟee ⋅τaʟκ 00:50, 9 January 2019 (UTC)

Thank you very much for linking the code! I have got it up and running, however struggling to track down a suitable image to use. Do you have a link available to the image that you ended up using, or any guidelines for what sort of image works best? From the code I have seen that they need to be 1-channel equirectangular, but what about colour/BW?

EDIT: The link is unavailable (I assume due to the current government shutdown in the US). Is there a way to for you to upload the image you saved to use? —Preceding unsigned comment was added by 54.37.18.131 (talk) 19:55, 11 January 2019 (UTC)

Thanks again —Preceding unsigned comment was added by 54.37.18.131 (talk) 19:51, 11 January 2019 (UTC)

Hello! Here's an archive of it in JPEG format. Convert it to an 8-bit greyscale PNG and feed it into my script. There's a higher-quality TIFF version, but it fails to download from http://astrogeology.usgs.gov/search/details/Mars/GlobalSurveyor/MOLA/Mars_MGS_MOLA_DEM_mosaic_global_463m . If you want to use your own heightmaps, they must be full-planet equirectangular 8-bit greyscale PNGs with dark being low elevations. The variables at the top of the script determine the scale and spheroid eccentricity. http://google.com/images?q=heightmap+filetype:png has some you can try. Good luck! cmɢʟee ⋅τaʟκ 14:04, 18 January 2019 (UTC)

## {{Svg lang}}

Hi. Currently all thumbnails in a {{Svg lang}} template just link to the SVG file, which is quite redundant. I'd prefer having a link to the corresponding ?lang=xyz page on Commons. Would you mind, if I changed {{Source thumb}} accordingly? Is {{Source thumb}} used anywhere outside of {{Svg lang}}? Thanks. TilmannR (talk) 19:46, 3 March 2019 (UTC)

Good idea, TilmannR; please go ahead. It's used in many derived images to show the original image, but if the default has the same behaviour, there should be no problem. Cheers, cmɢʟee ⋅τaʟκ 00:04, 4 March 2019 (UTC)
Oops, I don't think I got notified of your reply ({{Ping}} seems more reliable than {{U}} for this purpose), so I went ahead and created my own Template:Lang gallery, which has the disadvantage of having smaller thumbnails, but looks exactly like any other <gallery>, which is nice. (E.g. File:Bobo_doll.svg#Summary)
Regarding "the default has the same behaviour": Do you mean "the default has the same behaviour as the non-default" or "the default has the same behaviour as before"? Currently it links to the Commons page, but I can make it link to the raw file, if you want. TilmannR (talk) 10:20, 5 March 2019 (UTC)
And I have a small question. I don't have much experience with template development, so I don't know where I can look this up: If you have a template A within a template B on a file page F, does {{PAGENAME}} evaluate to the name of B or F? The first version of {{Lang gallery}} didn't work (the {{Lang gallery/thumb}} were invisible) and passing {{{file|{{PAGENAME}}}}} to {{Lang gallery/thumb}} fixed it. On the other hand, if the file name had simply been invalid, I would have expected the thumbnail to be a redlink and not invisible. Not sure how to debug this. TilmannR (talk) 10:32, 5 March 2019 (UTC)
Never mind. The actual problem was that I tried to pass an empty first parameter, which automatically turned the second parameter into the first parameter and made the second parameter empty, which made the template invisible. TilmannR (talk) 10:54, 5 March 2019 (UTC)
Never mind. The actual actual problem was, that {{{1|default value}}} doesn't yield the default value, when 1 is empty, but not undefined. I really should have read meta:Help:Template before writing that template. TilmannR (talk) 20:47, 5 March 2019 (UTC)
Hi @TilmannR:, sorry for the slow reply. Template:Lang_gallery looks great! Re Do you mean "the default has the same behaviour as the non-default" or "the default has the same behaviour as before"?, I meant the latter. I'm happy to have your new template replace my old one, if you like. Cheers, cmɢʟee ⋅τaʟκ 18:33, 18 March 2019 (UTC)
Oh, weird: I didn't get alerted about the ping either. Also your "thanks" are linking to the specific edit, for which you thanked me, so I completely missed your reply. I changed {{Source thumb}} to link to the raw file, when no language is specified. Makes sense: There are still links to the file page and its #filelinks section, so no functionality got lost. I actually came here to talk about mars elevation... TilmannR (talk) 12:27, 24 March 2019 (UTC)

## Mars elevation STLs

Moved to User_talk:TilmannR#Mars_elevation_STLsTilmannR (talk) 21:35, 26 March 2019 (UTC)

P.S.: I don't have time to do this right now, but {{Viewstl}} should have an optional parameter for passing a file name instead of a complete URL. TilmannR (talk) 13:18, 24 March 2019 (UTC)   Done TilmannR (talk) 18:45, 24 March 2019 (UTC)

Excellent – thank you very much! cmɢʟee ⋅τaʟκ 13:32, 26 March 2019 (UTC)

## Animated SVG Templates

@user:cmglee: For VideoWiki,we are planning on building animated SVG Templates, so that once we build a template, let's say bar charts, simple circle percentages, etc- a normal Wikipedian user can then just input the text variable and use that animated SVG in any of the slides of a video he or she is building. For Eg: Dengue Fever - if we have an animated svg bar chart that shows no. of days it can be showed on the "Recovery" slide, severe dengue slide, etc. Would love your advise/ and help if you are interested. The goal is to work hard once (make a template once) in such a way that the animated svgs can be used multiple times across any video by an average Wikipedian user. -

Ian Furst created an amazing "Medical Symptoms Template" that can be used across several medical videos such as Dengue, Malaria, Arthritis as the necessary symptoms can be marked as "visible/hidden" depending upon the disease. -Pratik.pks (talk) 00:23, 27 May 2019 (UTC)

I have no idea if possible, but if there is a way to pass text items to the svg it would be ideal. But I can't figure out a way to do it. E.g. the "Head" label could read "headache" or "unconscious". Would appreciate any input. Ian Furst (talk) 11:59, 27 May 2019 (UTC)
Hi @Pratik.pks: and @Ian Furst:, thanks for your message. It's a great idea to have SVGs easily generated by editors and I'd love to contribute to the effort. Is it possible to embed SVG files directly in a Wiki page, though? I don't know of a way to pass text into an SVG. The best workarounds I know of are:
1. Using a specialised extension, e.g. en:Template:Graph,_chart_and_plot_templates and en:Wikipedia:EasyTimeline
2. Hacking the systemLanguage property, e.g. File:Tallest_towers_in_the_world.svg – according to commons:Translation_possible/Learn_more#Language_codes, there are 443 codes, so can support all combinations of only 8 "visible/hidden" options, and would make the file unnecessarily large
3. Generating an SVG file for the user to upload, e.g. @Slashme:'s Parliament diagram tool
4. Generating an SVG offline e.g. en:user:cmglee/Dynamic_SVG_for_Wikimedia_projects#GIF_animation_to_SVG_converter – likely too difficult for the average editor
Perhaps one method (that requires an external webserver) is to have image tags which refer to an external URL. The webserver can then dynamically render or return an image matching the referrer. This might work only if the reader views the SVG and not the thumbnail.
I don't quite understand the purpose of the animation of the "Medical Symptoms Template" – all it seems to do on my browser is to fade in.
Cheers, cmɢʟee ⋅τaʟκ 22:00, 28 May 2019 (UTC)
Thanks cmglee, the upload svg is here. It's less about the animations, and more about the user being able to quickly create a standardized diagram for (in this case) symptoms. The svg code has a bunch of <g>roupings. One for each label, overlaid on the body silhouette. The logic, is that a user can quickly make each label group visible/hidden, or change the label name. Right now, a new diagram has be be created for each set of symptoms, for each language (give or take). With this, it can be quickly edited in a text editor, for a new svg. In an ideal world, the user would enter a simple template text, calling the file, like {{File:symptoms_man|viewbox;torso|head;hidden|chest;visible;angina|...}} for each symptoms. Thoughts? Wrt to the fade-in, given that commons won't even support the simple fade animation I'm thinking I should remove that. Ian Furst (talk) 10:59, 30 May 2019 (UTC)
Thanks @Ian Furst: I see what you mean now. Considering the limitations of SVG on Wikimedia (no Javascript), may I suggest an alternative solution: make it up from parts e.g. en:Template:Football_kit. Even better, since the main differences are the labels, you can use en:Template:Superimpose2, en:Template:Annotated_image_4 etc to position markers and labels over a blank image, similar to en:Template:Location_map+ but for anatomy. The drawback is that the compositing is done by the viewer's browser, but hopefully it's recent/compatible enough to render it correctly. You could make a wrapper template to do the positioning for the editor; I can help you with this if you like. Will that work? cmɢʟee ⋅τaʟκ 12:44, 30 May 2019 (UTC)
I think so. I've been surfing around today reading about templates (I tripped across a map with the overlay), and saw some of your 2016 discussions from phabricator. As I understand it, all CSS is essentially scrubbed? One of the issues is turning a label on or off (I use the hidden/visible parameter in the code, with all defaulted to visible). I'm a novice with templates, so let me take a day or two to educate myself and will ping back. Why don't they allow some CSS controls of svg's? What is the security issue? Ian Furst (talk) 21:17, 30 May 2019 (UTC)
Hi @Ian Furst, I've created en:template:symptoms_man. An example of its use is en:user:cmglee/Symptoms_man. The table is merely to not take up too much vertical space. Feel free to change them.
By the way, your image has markers for "Nausea" and "Fever" on the chest. Is that correct? Cheers, cmɢʟee ⋅τaʟκ 12:40, 31 May 2019 (UTC)
To see how I thought the template could be used, see the dengue videowiki, press the "preview my changes". In this case, I've imported it to aftereffects, but it would be so much easier (and more versitile) if the HTML/CSS version could be shown in Wikipedia. If doesn't see to want to show a preview of the svg. I don't have any .js in it, I'm not sure why it won't show the preview. Ian Furst (talk) 18:57, 31 May 2019 (UTC)
The fever and nausea are just placeholders. Can be subbed in for anything. Ian Furst (talk) 19:26, 31 May 2019 (UTC)
@Ian Furst: Right, now I see what you wanted the template for. I suppose you can take screenshots of my template with the relevant symptoms turned on. If After Effects requires SVGs directly, perhaps the best methods are to manually edit the file's CSS as you had done, or automate the process either online (as in the Parliament diagram tool) or offline (using Python etc). I'll retain the template in case another editor has any use for it on Wiki articles. Cheers, cmɢʟee ⋅τaʟκ 11:36, 3 June 2019 (UTC)
P.S. I couldn't fix the SVG thumbnail so have posted this help request. Please monitor the page. Ta!

Hey Cmglee, I just finished a different svg (for electric vehicles), and I'm starting to better understand everything you've been talking about wrt a simple template to add in labels. In an ideal world, the labels from a template would be imported to the svg script but I'm not sure how that's possible without .js. en:Template:Annotated_image_4 seems the best solution, although it's an inelegant solution. I'll be at Wikimania, and was going to bring it up there. Can you help me refine the ask? "I'dd like to make a template, similar to Annotated_image_4, that can a text string be brought into an svg to use as a label rather than just overlaying it" Possible avenue is embedding the svg within the html object? I know nothing of html. Ian Furst (talk) 12:04, 17 June 2019 (UTC)

Hey @Ian Furst:, hope you don't mind my starting a new section as indentation of the previous one was getting unwieldy. Very nice illustration you've made – just curious why Battery has two w:leader lines. If there are two batteries, wouldn't Regenerative brake also have them? Great idea to bring it up at Wikimania. I plan to be there, so can give you my support. The good news is that it's in the SVG 1.2 standard (see http://www.w3.org/TR/SVGTiny12/struct.html#SwitchElement) and has been implemented in the case of systemLanguage. Still, we'll have to justify why it's worth adding it and find someone able and willing to implement it (I haven't a clue!) I think embedding SVG in HTML is out of the question, as the SVG can possibly modify the page outside its bounds. In 2016, I brought up displaying it in the w:Wikipedia:Media_Viewer on http://phabricator.wikimedia.org/T138665 but it's in the backlog. If you're motivated to push it through, I'll be most grateful! Cheers, cmɢʟee ⋅τaʟκ 00:52, 23 June 2019 (UTC)

## File:Comparison US standard atmosphere 1962

I had a look at the density scale in the graph which indicates a density of at least 1.03 kN/m2 at 0 altitude (at one pixel above the 0 line) whereas the measured pressure is 1.01 kN/m2.

GregKaye (talk) 08:39, 5 June 2019 (UTC)

Thanks, @GregKaye:. The graphs were traced from the image at http://www.centennialofflight.net/essay/Theories_of_Flight/atmosphere/TH1G1.jpg which credited to NASA and also gives the value at around 1.03 kN/m². Unfortunately, I can no longer find reference to the graph on a more reliable source now. I'm a little reluctant to update it for just this value, as it will possibly then make other values wrong. If you know of better data for the 1962 US standard atmosphere, I'll be happy to redraw the whole thing. Cheers, cmɢʟee ⋅τaʟκ 13:37, 11 June 2019 (UTC)

## File:Maddison GDP per capita 1500-1950.svg

 File:Maddison GDP per capita 1500-1950.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!

Laviaread78b (talk) 14:39, 3 July 2019 (UTC)

I'd like to know whether the temperature can be added to the graphic

--Backinstadiums (talk) 10:55, 11 July 2019 (UTC)

Likely not, Backinstadiums, as different parts of the world at the same latitude have different temperatures at different times. For example, Marseille and Vladivostok are both at 43°N, but have vastly different climates! cmɢʟee ⋅τaʟκ 11:25, 11 July 2019 (UTC)

## A barnstar for you!

 The Original Barnstar Thanks for the graphics Backinstadiums (talk) 10:55, 11 July 2019 (UTC)

Thank you very much, Backinstadiums. Much appreciated! cmɢʟee ⋅τaʟκ 11:09, 11 July 2019 (UTC)

## File:Milky Way Arms ssc2008-10.svg

Hi! The galaxy map File:Milky Way Arms ssc2008-10.svg credits File:Milky_Way_2005.jpg as the source for the embedded galaxy image. However, on inspection it would appear instead to be a later version, File:Milky_Way_2008.jpg. There are also two more recent versions, but it doesn't appear to be either of those (and of course the 2013 image wasn't around in 2011 when you first made this map!):

I'm pretty confident of this (I pulled apart the SVG and compared the embedded image to all four versions—the map is rotated 180° compared to the last three, at least), but I didn't want to change your stated attribution without checking with you first. But could you have a look and then, if necessary, update the attribution? -- Perey (talk) 09:52, 14 July 2019 (UTC)

Hi @Perey:. Looking at the file history of the 2005 version, it seems that Ashill's upload of 4 June 2008 was reverted on 19 April 2014. The SVG's source is the Ashill version. I'm unsure how to update the attribution, as it was correct at the time of creation. Cheers, cmɢʟee ⋅τaʟκ 12:29, 14 July 2019 (UTC)
Huh. Quite right—not sure how I missed that! As the revert comment notes, the new image (the Ashill version) is what became File:Milky_Way_2008.jpg. So I guess updating the attribution would work... but leaving it as-is would also make sense. (See, I knew asking here first would be the right thing!)
Alternatively, maybe the whole issue would be avoided if the SVG were updated to use the artist's latest version... ;-) -- Perey (talk) 14:50, 14 July 2019 (UTC)
Done As its track record shows that it's liable to change, perhaps the JPEG version should follow a consistent naming scheme which includes its date? cmɢʟee ⋅τaʟκ 17:12, 14 July 2019 (UTC)

## Wallis product improperly labeled?

I think the Wallis product is the blue square markers, not the purple asterisks. The Wallis product alternatively estimates above and below the value of pi/2 as it converges to the value.

— Preceding unsigned comment added by To9g3qa (talk • contribs) 02:35, 21 August 2019 (UTC)
Thanks for bringing it to my attention. There are two possible expansions of the Wallis product:
${\displaystyle {\frac {\pi }{2}}={\frac {2}{1}}\cdot {\frac {2}{3}}\cdot {\frac {4}{3}}\cdot {\frac {4}{5}}\cdot {\frac {6}{5}}\cdot {\frac {6}{7}}\cdot {\frac {8}{7}}\cdot {\frac {8}{9}}\cdot \cdots }$  and ${\displaystyle {\frac {\pi }{2}}=\prod _{n=1}^{\infty }\left({\frac {4n^{2}}{4n^{2}-1}}\right).}$
Using the former, the product oscillates around ${\displaystyle \pi }$ . The latter groups two terms at a time (note that a • a(a - 1)(a + 1) = a² - 1), and does not. I'll make it clearer on the Wikipedia article. Cheers, cmɢʟee ⋅τaʟκ 12:09, 4 September 2019 (UTC)

## Symmetrical set Venn diagram

Wow! It's amazing how you made Symmetrical 5-set Venn diagram ! May I ask you how you obtained it and if it's possible to use this how-to in order to make Symmetrical set Venn diagram with more than 5 sets, please. It would be very kind. 92.188.54.144 17:43, 24 August 2019 (UTC)

Thanks! It was originally designed by mathematician Branko Grünbaum. I wrote the Python program at http://commons.wikimedia.org/wiki/File:Symmetrical_5-set_Venn_diagram.svg#Summary to make the smallest regions as large as possible. Let me know if you've other questions. Cheers, cmɢʟee ⋅τaʟκ 15:09, 25 August 2019 (UTC)

May I ask you if there is a way to obtain a 6-or-more by using a software ? Note : it's me the former called "92.188.54.144 17:43, 24 August 2019 (UTC)". My IP provider changes my ip adress any time.2A01:CB0C:38C:9F00:31CD:9270:5879:5FE6 16:41, 2 September 2019 (UTC)

I don't know if a way to do that, but know of the above 6-set Venn diagram made of only triangles, devised by Jeremy J Carroll ( http://www.hpl.hp.com/techreports/2000/HPL-2000-73.pdf ). In the SVG, Hover over a set to highlight it, and click it to select and deselect it.
Would it help to register an account so that you can have a permanent customisable identity? You needn't use your real name if you prefer not to. Cheers, cmɢʟee ⋅τaʟκ 00:18, 3 September 2019 (UTC)

I fact, I prefer ellipses. Furthermore, in this figure there are areas far too small.2A01:CB0C:38C:9F00:31CD:9270:5879:5FE6 00:25, 3 September 2019 (UTC)

Me too. Sadly, I don't know of a way to generate them analytically. Would you like to post your question at en: Wikipedia:Reference_desk/Mathematics? Someone there may be able to answer it. Cheers, cmɢʟee ⋅τaʟκ 08:49, 4 September 2019 (UTC)

## File:Fourier series sawtooth wave circle animation.svg

 File:Fourier series sawtooth wave circle animation.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!

Bob K (talk) 12:33, 25 August 2019 (UTC)

## September 2019: it's Wiki Loves Monuments time again!

Hi

You're receiving this message because you've previously contributed to the annual Wiki Loves Monuments contest in the UK. We'd be delighted if you would do so again this year and help record our local built environment for future generations.

You can find more details at the Wiki Loves Monuments UK website. Or, if you have images taken in other countries, you can check the international options. This year's contest runs until 30 September 2019.

Many thanks for your help once more! MichaelMaggs (talk) 15:34, 3 September 2019 (UTC)

## Collaboration on a Sunburst_peripheral_drift_illusion demo?

Fixate at the center to get the colour disappearance effect

I have made the observation on your https://commons.wikimedia.org/wiki/File:Sunburst_peripheral_drift_illusion.svg that if you fixate the centre, the colour almost immediately disappears. I would like to publish this effect with your collaboration as a co-author.

I have mocked up a version of the figure that exemplifies this new effect:

Please email me at cwtyler2020@gmail.com for full details.

— Preceding unsigned comment added by Cwtyler (talk • contribs) 18:32, 4 September 2019 (UTC)

Fixed version

Hue channel of the original
Thanks, @Cwtyler: That's kind of you! It was actually a serendipitous discovery. I had intended it to be the image on the left, but wasn't knowledgeable enough about SVG at the time, and the thumbnail didn't quite match the rendering on my web browser. Do you see the same effect on the new version? Cheers, cmɢʟee ⋅τaʟκ 20:48, 5 September 2019 (UTC)

Yes, indeed, that new version looks more controlled and gives stronger peripheral motion effects, so it is optimal for your purposes. However, it is less successful for the color suppression effect that I am interested in, Are you willing to provide me with a file of only the color component of the older image? Many thanks in advance, if so.

— Preceding unsigned comment added by Cwtyler (talk • contribs) 21:44, 5 September 2019 (UTC)
Hi @Cwtyler: I've uploaded just the colour channels of the old version. Is that what you wanted? Cheers, cmɢʟee ⋅τaʟκ 13:17, 8 September 2019 (UTC)

## Sum of Three Cubes

Just discovered: ${\displaystyle 42=(-80538738812075974)^{3}+80435758145817515^{3}+12602123297335631^{3}}$

Can you update File:Sum_of_3_cubes.svg? –Gus Polly (talk) 16:05, 6 September 2019 (UTC)

Done Thanks, @Gus Polly: cmɢʟee ⋅τaʟκ 13:13, 8 September 2019 (UTC)

## Community Insights Survey

RMaung (WMF) 01:14, 10 September 2019 (UTC)