SH3 Globe

I would like to know how much bigger is SH3 globe compared to real world ?

1 km Sh3 = ? km RL

[Pisces]

Well, there is no such thing as a SH3 Globe.

The real world and the SH3 world have different shapes. The coordinates in the SH3 world (and SH4 and 5 I think) are basically the latitude and longitude axis on the globe. But the SH3 world is a flat rectangular plane, whereas the real world is a sphere (-like) shape. On the SH3 map the north and south pole regions are stretched out to the same size as the equator. (0 meters becomes 43200 km ... ) So you can't really compare both distances. Meridians on the SH3 map never come together at the poles, like they do in the real world. So horizontal distances on the SH3 map can NOT be compared to horizontal (East-West) distances in the real world. And compass headings don't match either in most cases.

That said, the game uses 120000 game-meters (or 120 'game kilometers') for each degree along the latitude and longitude axis. If you measure distances from a point to the Greenwich Meridian (vertical line through London) and to the equator (horizontal in the middle of the map), then divide those by 120, then you'll get the latitude and longitude degrees which you can use to locate on a real map, or Google Earth for example.

According to this Wiki page the length of the equator is around 40075 km. But according to the above scale, in the SH3 world it would be 43200km. From north to south pole would be 21600 km on the map, and in the real world it is about 40008 km.

The question is, what do you want to do with these distances and coordinates?

p.s. nautical miles (like for speed) in the game are just like the real value: 1 NM = 1852 meters

Crap, this is not going to work as I planned then

The thing is I got bored to play the old way so decided to try something new

I'm doing some sort of experiment: My Boat is U-642, I'm in second war patrol, that looks like this: http://www.uboat.net/boats/patrols/patrol_1916.html

Now that gives an option to track daily U-boat positions by cooridantes. I already made an analogical course by those coordinates in my Google Earth, but when I started to mark positions of waypoints of the game I see huge difference from what is in Google Earth (GE) and in the SH3.

I compared eguator lenght's from GE and SH3 and it gave me huge difference:

From my calculations I see:

SH3 equator length is: 43154 Km

GE -//- : 40000

Meridian had less noticable differences than equator.

So what I had in mind was to get the value of the difference and make adjustments setting up waypoints so that it would at least look close to reality as much as possible. However due to the fact that the map is plain and in whole width we have equatorial lenght I guess it's going to benot that easy to make, or even impossible:

[Pisces]

I made several additions to my message above while you were typing yours. So you may have missed that.

Hold on, there are no nautical miles in SH3 right ?

[Pisces]

Originally Posted by PapaKilo

Crap, this is not going to work as I planned then

The thing is I got bored to play the old way so decided to try something new

I'm doing some sort of experiment: My Boat is U-642, I'm in second war patrol, that looks like this: http://www.uboat.net/boats/patrols/patrol_1916.html

Now that gives an option to track daily U-boat positions by cooridantes. I already made an analogical course by those coordinates in my Google Earth, but when I started to mark positions of waypoints of the game I see huge difference from what is in Google Earth (GE) and in the SH3.

I compared eguator lenght's from GE and SH3 and it gave me huge difference:

From my calculations I see:

SH3 equator length is: 73990 Km

GE -//- : 40000

Meridian had less noticable differences than equator.

So what I had in mind was to get the value of the difference and make adjustments setting up waypoints so that it would at least look close to reality as much as possible. However due to the fact that the map is plain and in whole width we have equatorial lenght I guess it's going to benot that easy to make, or even impossible:

If you measured 73990 km then I think you did something wrong. Or screen resolution messes up with map window size, possibly related to screen aspect ratio. Maybe it is showing 2 maps side by side, or the Pacific is much larger due to extra margins on the side. Either way, I got my values from the Scenario editor, and checked them in my game just now again. It's definitely 432000 km east to west, and 21600km north to south.

Your idea has been suggested before, but it's use would be limited. The path would look weird in GE nearer to the poles (different compass headings, and much more compressed east-to-west), and the time and distances would not match your actual in game speeds. But for example, Heligoland is where it is supposed to be on the SH3 map.

Sorry I made a mistake there with equator

images of what I'm into:



How it should be..



And where it ends in the game..

[Pisces]

Originally Posted by PapaKilo

Sorry I made a mistake there with equator

images of what I'm into:

...

How it should be..

...

And where it ends in the game..

I don't get it. What's stopping you? How it should be, and where it ends. The difference is just perseverance in calculating coordinate conversions and laying that out on the map.

Waypoints on the map are found in savegamename.map file in the My_Documents\SH3\data\cfg\Careers\_CommanderName_\ _PatrolNumber_ folder under the [Waypoint] block, like:

[Waypoint]
PointsNb=4
Pt0=616151.47,7781153.31,-9.68
Pt1=609641.38,7806604.00,0.00
Pt2=498241.50,7858804.00,0.00
Pt3=282241.50,7746804.00,0.00

So using an excel sheet to convert the numbers and saving it to txt table (CSV format) might make it easier on you to insert your waypoint on the map.

[Pisces]

Originally Posted by PapaKilo

Hold on, there are no nautical miles in SH3 right ?

What do you think "knots" are? Hint: naut's per hour

But you are right in thinking there are no nautical mile rulers to measure with.

Originally Posted by Pisces

I don't get it. What's stopping you? How it should be, and where it ends. The difference is just perseverance in calculating coordinate conversions and laying that out on the map.

Ehm.. I'm not sure how should I make distance between waypoints in SH3 look like in GE ?

If I knew how much should I adjust scale for SH map to mirror the correct distance of waypoints of GE it would be the end of problem

Currently I'm half sober, so it might be true that I'm speaking nonsence at the moment

Waypoints on the map are found in savegamename.map file in the My_Documents\SH3\data\cfg\Careers\_CommanderName_\ _PatrolNumber_ folder under the [Waypoint] block, like:

[Waypoint]
PointsNb=4
Pt0=616151.47,7781153.31,-9.68
Pt1=609641.38,7806604.00,0.00
Pt2=498241.50,7858804.00,0.00
Pt3=282241.50,7746804.00,0.00

So using an excel sheet to convert the numbers and saving it to txt table (CSV format) might make it easier on you to insert your waypoint on the map.

I wish I knew how to make this ? My ignorance in excel knowledge is miserable

Originally Posted by Pisces

What do you think "knots" are? Hint: naut's per hour

But you are right in thinking there are no nautical mile rulers to measure with.

Yeah.. it's tragicomedy. They gave us knots without nautical miles ruler

Just thinking about all of this puts me in despair

[Gerald]

Should you use the folder,to sail around the world, with the SH3?,

Originally Posted by Vendor

Should you use the folder,to sail around the world, with the SH3?,

I'm sorry, but what do you have in mind with: "use the folder" thing ?

[Gerald]

Originally Posted by PapaKilo

I'm sorry, but what do you have in mind with: "use the folder" thing ?

CHART! Better...

Originally Posted by Vendor

CHART! Better...

Not that it had something to do with problems we discuss here