IxWiki:Global Maps: Difference between revisions

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=Size and Scale=

As of 4/11/2021 the base map that all global maps display is 8,400 pixels long and 4,200 pixels in height. The scale of these maps is 1px=10sqmi (25.90 sqkm). This means that the circumference of this world is 42,000 miles making our world 1.6 times larger than Earth. We have collectively agreed that, for RPing purposes, this will not have an impact of the gravity of our world.

The world map is bound by the polar circles and represents the habitable land in our world. This is called '''polar offset'''. It means that any latitudinal coordinate is calculated and then added to 23.433 (the latitude of the polar circles from the poles) for the final coordinate number.

==Calculating Latitude and Longitude==

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To calculate a coordinate you need understand that the Equator is in the middle of the map height-wise at 2100 pixels from the top and the Prime Meridian is in the middle of the map width-wise at 4200 pixels from the left. Open the Raw map in a program that tells me which pixels you are pointing to. I use [https://download.cnet.com/Paint-NET/3000-2192_4-10338146.html Paint.net] because its free, but Photoshop and other programs are just fine. The image to the right shows you where to find that information in Paint.net using the regular pointer tool.

===Longitude===

To determine the longitude of a location look at the first number in the bottom right, in the example 5286. Since it is greater than 4200 that means it is east of the Prime Meridian. To determine how many degrees east of the Prime Meridian subtract 4200 from 5286 equaling 1086. Because there are 46.667px in each line of longitude, divide 1086 by 46.667, equaling 23.271. This is the number of decimal degrees east of the Prime Meridian the point is, written as 23.271 east longitude.

To determine the latitude of a location look at the second number in the bottom right, in the example 1605. Since it is less than 2100 that means it is north of the Equator. To determine how many degrees north of the Equator subtract 1605 from 2100 equaling 495. Because there are 23.333px in each line of latitude, divide 495 by 23.333, equaling 21.214. This is the number of decimal degrees north of the Equator the point is, written as 21.~~214~~ north latitude.

===Latitude===

To determine the latitude of a location look at the second number in the bottom right, in the example 1605. Since it is less than 2100 that means it is north of the Equator. To determine how many degrees north of the Equator subtract 1605 from 2100 equaling 495. Because there are 23.333px in each line of latitude, divide 495 by 23.333, equaling 21.214. Then to account for '''polar offset''' add 23.433 to 21.214, equaling 46.704. This is the number of decimal degrees north of the Equator the point is, written as 46.704 north latitude.

===Final calculations===

To convert these into geographic coordinates click this link to the [https://www.fcc.gov/media/radio/dms-decimal Degrees Minutes Seconds to/from Decimal Degrees calculator] and scroll to the second calculator, titled Decimal Degrees to Degrees Minutes Seconds. Input your decimal latitude in the first box, in this example 21.214, and your decimal longitude in the second box, in this example 23.271. It will output your coordinates in degrees minutes and seconds. In this example 21° 12' 50.3994" and 23° 16' 15.6". Now to complete the coordinates you need to give them their hemispheric references (North or South of the Equator, and East or West of the Prime Meridian). In this case because we know that this example is from north of the Equator and West of the Prime Meridian we would complete it as follows: 21° 12' 50" N and 23° 16' 15" E. I choose to take out the superfluous decimals because they are far to specific for references in this world. I am not trying to locate a pinhead, I am pointing to a city, or town most likely.

@@ Line 10: / Line 10: @@
 =Size and Scale=
 As of 4/11/2021 the base map that all global maps display is 8,400 pixels long and 4,200 pixels in height. The scale of these maps is 1px=10sqmi (25.90 sqkm). This means that the circumference of this world is 42,000 miles making our world 1.6 times larger than Earth. We have collectively agreed that, for RPing purposes, this will not have an impact of the gravity of our world.
+The world map is bound by the polar circles and represents the habitable land in our world. This is called '''polar offset'''. It means that any latitudinal coordinate is calculated and then added to 23.433 (the latitude of the polar circles from the poles) for the final coordinate number.
 ==Calculating Latitude and Longitude==
@@ Line 16: / Line 18: @@
 To calculate a coordinate you need understand that the Equator is in the middle of the map height-wise at 2100 pixels from the top and the Prime Meridian is in the middle of the map width-wise at 4200 pixels from the left. Open the Raw map in a program that tells me which pixels you are pointing to. I use [https://download.cnet.com/Paint-NET/3000-2192_4-10338146.html Paint.net] because its free, but Photoshop and other programs are just fine. The image to the right shows you where to find that information in Paint.net using the regular pointer tool.
+===Longitude===
 To determine the longitude of a location look at the first number in the bottom right, in the example 5286. Since it is greater than 4200 that means it is east of the Prime Meridian. To determine how many degrees east of the Prime Meridian subtract 4200 from 5286 equaling 1086. Because there are 46.667px in each line of longitude, divide 1086 by 46.667, equaling 23.271. This is the number of decimal degrees east of the Prime Meridian the point is, written as 23.271 east longitude.
-To determine the latitude of a location look at the second number in the bottom right, in the example 1605. Since it is less than 2100 that means it is north of the Equator. To determine how many degrees north of the Equator subtract 1605 from 2100 equaling 495. Because there are 23.333px in each line of latitude, divide 495 by 23.333, equaling 21.214. This is the number of decimal degrees north of the Equator the point is, written as 21.214 north latitude.
+===Latitude===
+To determine the latitude of a location look at the second number in the bottom right, in the example 1605. Since it is less than 2100 that means it is north of the Equator. To determine how many degrees north of the Equator subtract 1605 from 2100 equaling 495. Because there are 23.333px in each line of latitude, divide 495 by 23.333, equaling 21.214. Then to account for '''polar offset''' add 23.433 to 21.214, equaling 46.704. This is the number of decimal degrees north of the Equator the point is, written as 46.704 north latitude.
+===Final calculations===
 To convert these into geographic coordinates click this link to the [https://www.fcc.gov/media/radio/dms-decimal Degrees Minutes Seconds to/from Decimal Degrees calculator] and scroll to the second calculator, titled Decimal Degrees to Degrees Minutes Seconds. Input your decimal latitude in the first box, in this example 21.214, and your decimal longitude in the second box, in this example 23.271. It will output your coordinates in degrees minutes and seconds. In this example 21° 12' 50.3994" and 23° 16' 15.6". Now to complete the coordinates you need to give them their hemispheric references (North or South of the Equator, and East or West of the Prime Meridian). In this case because we know that this example is from north of the Equator and West of the Prime Meridian we would complete it as follows: 21° 12' 50" N and 23° 16' 15" E. I choose to take out the superfluous decimals because they are far to specific for references in this world. I am not trying to locate a pinhead, I am pointing to a city, or town most likely.

IxWiki:Global Maps: Difference between revisions

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