Talk:2807: Bad Map Projection: ABS(Longitude) - Revision history

MDwayne: Canada \(^,^)/

2023-08-05T20:27:22Z

Canada \(^,^)/

These Are Not The Comments You Are Looking For: Relocation complaint

2023-08-01T02:23:48Z

Relocation complaint

162.158.74.63 at 21:25, 28 July 2023

2023-07-28T21:25:10Z

Ianrbibtitlht: Question on Correct Formula section content

2023-07-28T19:29:05Z

Question on Correct Formula section content

Andrewtheexplainer at 15:27, 28 July 2023

2023-07-28T15:27:05Z

141.101.97.54 at 12:51, 28 July 2023

2023-07-28T12:51:55Z

Coconut Galaxy at 16:47, 27 July 2023

2023-07-27T16:47:52Z

ProphetZarquon at 15:06, 27 July 2023

2023-07-27T15:06:45Z

172.70.127.80: Aleutian

2023-07-27T15:02:12Z

Aleutian

172.70.114.141: new comment

2023-07-27T14:41:13Z

new comment

← Older revision		Revision as of 20:27, 5 August 2023
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	I'm in Serbia and nothing changes for me. I wonder how the Indian subcontinent and Central Asia are dealing with the sudden Americans. [[User:Andrewtheexplainer\|Andrewtheexplainer]] ([[User talk:Andrewtheexplainer\|talk]]) 15:27, 28 July 2023 (UTC)		I'm in Serbia and nothing changes for me. I wonder how the Indian subcontinent and Central Asia are dealing with the sudden Americans. [[User:Andrewtheexplainer\|Andrewtheexplainer]] ([[User talk:Andrewtheexplainer\|talk]]) 15:27, 28 July 2023 (UTC)
		+
		+	As a Canadian of course I would notice this. It appears Canada has the most references on the map with seven just ahead of the USA with only six. Given our typical low self esteem, we take our "wins" whenever we can: thanks Randall [[User:MDwayne\|MDwayne.ca]] ([[User talk:MDwayne\|talk]]) 20:27, 5 August 2023 (UTC)

← Older revision		Revision as of 02:23, 1 August 2023
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	:Anyway, I think that section isn't necessary, but it may be of interest. [[Special:Contributions/162.158.74.63\|162.158.74.63]] 21:25, 28 July 2023 (UTC)		:Anyway, I think that section isn't necessary, but it may be of interest. [[Special:Contributions/162.158.74.63\|162.158.74.63]] 21:25, 28 July 2023 (UTC)

		+	I wondered why it got so frigid and hard-to-breath overnight. Thanks a lot, Randal, for moving me to the Himalayas.[[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:23, 1 August 2023 (UTC)

	== an ABS(Latitude) map ==		== an ABS(Latitude) map ==

← Older revision		Revision as of 21:25, 28 July 2023
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	The formula added in the "Correct formula" section of the explanation is not consistent with how Randall has overlaid the negative longitudes on top of the positive longitudes. This section was added by an anonymous editor. This formula mirrors the negative longitudes into positive longitudes but leaves them in a separate hemisphere from the positive longitudes, without overlaying the two hemispheres as Randall has done. I think this section needs to be removed completely. Anyone else agree? [[User:Ianrbibtitlht\|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht\|talk]]) 19:29, 28 July 2023 (UTC)		The formula added in the "Correct formula" section of the explanation is not consistent with how Randall has overlaid the negative longitudes on top of the positive longitudes. This section was added by an anonymous editor. This formula mirrors the negative longitudes into positive longitudes but leaves them in a separate hemisphere from the positive longitudes, without overlaying the two hemispheres as Randall has done. I think this section needs to be removed completely. Anyone else agree? [[User:Ianrbibtitlht\|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht\|talk]]) 19:29, 28 July 2023 (UTC)
		+	:I edited it. Not the author, but I think the intent was that this is what correct formula ''should'' have been used, instead of the "whoops!" indident where he actually used abs().
		+	:So I made it more clear (or, possibly less, you decide), plus added another alternative positive-normalising form of formula.
		+	:Though the use of mod (or % operator) may depend upon the mod-function implementation involved (whether it even needs the +360, can handle float longitudes, can perhaps even work well beyond -180..+180 input...) but it can be the much clearer method. Just test it with various values from all quadrants (and beyond +-180) ahead of time to make sure (what the comic map's creator should have done with ''their'' method).
		+	:Or, in code, just run something like <code>while (lon<0) {lon+=360}; while (lon>=360) {lon-=360};</code>, or however that'd work in your chosen coding dialect's syntax. And you might need to accept a possible bit of loop-spam if the input is somehow vastly high/low, but it works well in skipping over entirely unnecessary multiplative/divisive operations (it'll do no more than one of the loops, on the way past).
		+	:TMTOWTDI, though, and the usable methods are practically unlimited, I'd probably use whatever method looks good against the surrounding code (or shuttle it away into a subprocedure call, where I now make it look neat alongside its fellow subs).
		+	:Anyway, I think that section isn't necessary, but it may be of interest. [[Special:Contributions/162.158.74.63\|162.158.74.63]] 21:25, 28 July 2023 (UTC)

@@ Line 30: / Line 30: @@
 Gondwanaland explained as a coordinate error.
 [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 15:06, 27 July 2023 (UTC)
 == an ABS(Latitude) map ==

← Older revision		Revision as of 15:27, 28 July 2023
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	:[[User:ProphetZarquon\|ProphetZarquon]] ([[User talk:ProphetZarquon\|talk]]) 15:06, 27 July 2023 (UTC)		:[[User:ProphetZarquon\|ProphetZarquon]] ([[User talk:ProphetZarquon\|talk]]) 15:06, 27 July 2023 (UTC)

−	I'm in Serbia and nothing changes for me. I wonder how the Indian subcontinent and Central Asia are dealing with the sudden Americans. [[~~Special~~:~~Contributions/141.101.97.54~~\|~~141.101.97.54~~]] 12:51, 28 July 2023 (UTC)	+	I'm in Serbia and nothing changes for me. I wonder how the Indian subcontinent and Central Asia are dealing with the sudden Americans. [[User:Andrewtheexplainer\|Andrewtheexplainer]] ([[User talk:Andrewtheexplainer\|talk]]) 15:27, 28 July 2023 (UTC)

← Older revision		Revision as of 12:51, 28 July 2023
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	:Even at first glance it looks faked up though, because half the paisleys are backward.		:Even at first glance it looks faked up though, because half the paisleys are backward.
	:[[User:ProphetZarquon\|ProphetZarquon]] ([[User talk:ProphetZarquon\|talk]]) 15:06, 27 July 2023 (UTC)		:[[User:ProphetZarquon\|ProphetZarquon]] ([[User talk:ProphetZarquon\|talk]]) 15:06, 27 July 2023 (UTC)
		+
		+	I'm in Serbia and nothing changes for me. I wonder how the Indian subcontinent and Central Asia are dealing with the sudden Americans. [[Special:Contributions/141.101.97.54\|141.101.97.54]] 12:51, 28 July 2023 (UTC)

← Older revision		Revision as of 16:47, 27 July 2023
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	*There's a misspelling on the map: "Aleutian" is misspelled as "Aelutian". --[[Special:Contributions/172.70.127.80\|172.70.127.80]] 15:02, 27 July 2023 (UTC)		*There's a misspelling on the map: "Aleutian" is misspelled as "Aelutian". --[[Special:Contributions/172.70.127.80\|172.70.127.80]] 15:02, 27 July 2023 (UTC)
		+	* Reykjavík is misspelled as Reykjavic. Makes it kinda Serbo-Croatic-looking. --[[User:Coconut Galaxy\|Coconut Galaxy]] ([[User talk:Coconut Galaxy\|talk]]) 16:47, 27 July 2023 (UTC)

	Gondwanaland explained as a coordinate error.		Gondwanaland explained as a coordinate error.

@@ Line 26: / Line 26: @@
 *There's a misspelling on the map: "Aleutian" is misspelled as "Aelutian". --[[Special:Contributions/172.70.127.80|172.70.127.80]] 15:02, 27 July 2023 (UTC)
 == an ABS(Latitude) map ==
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 This would actually make a great fantasy map, as my father pointed out. Just swap out the city names with fantasy ones, and players would not be able to figure out where you got the map from. [[Special:Contributions/172.70.114.141|172.70.114.141]] 14:41, 27 July 2023 (UTC)

← Older revision		Revision as of 15:02, 27 July 2023
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	So... Lemuria was South America all along! [[User:Shirluban\|Shirluban]] 12:20, 27 July 2023 (UTC)		So... Lemuria was South America all along! [[User:Shirluban\|Shirluban]] 12:20, 27 July 2023 (UTC)
		+
		+	*There's a misspelling on the map: "Aleutian" is misspelled as "Aelutian". --[[Special:Contributions/172.70.127.80\|172.70.127.80]] 15:02, 27 July 2023 (UTC)

	== an ABS(Latitude) map ==		== an ABS(Latitude) map ==

← Older revision		Revision as of 14:41, 27 July 2023
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	:Can you do abs(log), abs(lat)? [[Special:Contributions/162.158.110.142\|162.158.110.142]] 14:22, 27 July 2023 (UTC)		:Can you do abs(log), abs(lat)? [[Special:Contributions/162.158.110.142\|162.158.110.142]] 14:22, 27 July 2023 (UTC)
		+
		+	This would actually make a great fantasy map, as my father pointed out. Just swap out the city names with fantasy ones, and players would not be able to figure out where you got the map from. [[Special:Contributions/172.70.114.141\|172.70.114.141]] 14:41, 27 July 2023 (UTC)