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好感动——P社论坛内的长篇大论

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我昨天在P社论坛EU4 MOD区的Typus Orbis Terrarum(那个新地图投影)贴上水了一发
NaiveCarto said: ↑Great Work!
I tried to designed a mod which covert the map to an Equal-Area map projection,while it's hard to seek any data like the height map so I gave up and nothing done, So I really comprehend the difficulty of making this mod.
Cylindrical Equal-Area map projections are so ugly while it is better for EU4 really,the area deviation cause big problems like the exaggerated distance among the Siberia.Maybe you can add any march speed modified to it.
By the way, I wonder the maximum limit of map size,can it be bigger than 5632*2048?
结果作者bizarcasm回复了这么多:
Cylindrical Equal Area projections aren’t actually any better for gameplay. In fact, the distortion is just as bad for province-to-province distance. No matter what you do, a cylindrical projection will always stretch out the map horizontally the same relative amount, so different projections distort things vertically to compensate in way or another.

Conformal cylindrical projections, such as the Mercator, stretch the map out as you go toward the poles, in order to preserve locally correct angles and shapes. This makes it relatively easy to draw and trace provinces with these. Typus’ map, the Braun Stereographic, and the more common Miller projections are compromises, which attempt to remain relatively conformal, while reducing the extent of the distortion at the poles.

Equal-area projections stretch the tropics vertically to give them the correct overall area. This is useful for some things, like mapping population density, and for certain educational purposes, but not much else, IMO. They not only distort the shape to be completely ugly, but also distort the north-south distance between the meridians, making it next to useless for a game map.

If you wanted more accurate province-to-province travel time, the best you could do would be an Equidistant, or Equirectangular Projection, which preserves North-South distance along the meridians. A map like this is actually comparatively easy to make, since most available data is in that format anyway. I’ve been working on one as a side project, and it’s progressing much more quickly than Typus did. I was actually considering using it instead for the revival of my formerly-known-as-Theatrum project.

You can make a map slightly larger than vanilla, but not much. Typus is actually a little bigger. There’s a list CanOmer came up with of maximum map sizes on page 6 of the Map Guide thread, here it is:

CanOmer said: ↑Possible Biggest Map Resolutions
Max: 200x(256x256
18 x 11 = 198 : 4608 x 2816
20 x 10 = 200 : 5120 x 2560
22 x 9 = 198 : 5632 x 2304 (Typus)
25 x 8 = 200 : 6400 x 2048
28 x 7 = 196 : 7168 x 1792
33 x 6 = 198 : 8448 x 153
22 x 8 = 176 : 5632 x 2048 (vanilla)


Maybe I should write up a new Map Guide at some point. Sakura’s is a little out of date, and is missing a few bits of crucial information.
他亲切地告诉我各种投影方式的优劣,这么多好感动(怎么这么有闲工夫!)
顺便问下怎样回应他呀


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1楼2016-01-03 17:51
    回复:fuck you (翻译:感谢回复)


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    3楼2016-01-03 18:07
      3楼666666


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      来自iPhone客户端4楼2016-01-03 18:16
        回复:I ain't posting my reply in tieba for pretending b on English


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        来自iPhone客户端6楼2016-01-03 18:28
          I can't understand English~\(≧▽≦)/~


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          来自Android客户端7楼2016-01-03 19:54
            三楼,五楼,七楼说的都很对,


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            来自Android客户端9楼2016-01-04 06:53
              看不懂诶


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              来自iPhone客户端11楼2016-01-04 09:28
                big wate B,too young,too native


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                来自Android客户端12楼2016-01-04 09:53
                  回复:ni tamagei laozi hunyuan dian hundan
                  翻译:说得很好赞一个


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                  来自iPhone客户端13楼2016-01-04 09:56
                    The American reporter, Wallace.I don't know he is how much taller than you.I talked warmly with him.


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                    来自Android客户端14楼2016-01-04 10:27
                      外国友人还是挺热情的


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                      15楼2016-01-04 11:31
                        国外地理大神让人钦佩


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                        16楼2016-01-04 11:42
                          其实说白了就是为了让瑞典大一点,所以才选择的墨卡托投影
                          根本不用解释那么多.................


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                          17楼2016-01-04 13:48