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/sci/ - Science & Math

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File: 221 KB, 2048x1024, pierce_quincuncial_1.jpg [View same] [iqdb] [saucenao] [google]
2553111 No.2553111 [Reply] [Original]

I am a nerd about map projections. I don't like how typical maps distort the area near the poles. It makes it so you can't see the shape of Antarctica, Greenland is always either misshapen or large, and you can't see how the north of Eurasia curves around the pole.

I wanted to make a projection that shows the shape of all the continents accurately, and shows their placement relative to the nearest continent. To achieve this I threw away the standard orientation. What do you think?

I wrote my map projector in C and OpenCL and I am using the Pierce Quincuncial projection. I take advantage of its tesselability to make the map rectangular, instead of the square this projection usually generates.

>> No.2553124

Pretty cool OP. Image saved.

>> No.2553127

That's pretty cool, I have never seen the actual shape of greenland. Interesting. Got any other rotations? I take it you tried to get most the distortion over the sea?

>> No.2553128

That is an awesome projection OP!

10/10 and saved.

>> No.2553129

yep, saved

I prefer china centric maps. Not really, but I'm amused by cultural bias involved in mapmaking.

>> No.2553134
File: 95 KB, 829x551, 36-x24--World-Map-Poster-With--204109.jpg [View same] [iqdb] [saucenao] [google]
2553134

helps if I include an example...

>> No.2553139

Hey. I have an idea. What if we just map the surface of the Earth to a sphere? Then features would correspond roughly one-to-one.

I think I'll call it a "globe."

>> No.2553146

>>2553139
fuck off, globe is three dimensional, and we need two dimensional, just to print on paper.

OP good job, saved.

>> No.2553158

>>2553146
What if we made paper that acted like a television screen, so we could use it to represent 3D models in a variety of orientations?

>> No.2553174
File: 49 KB, 400x382, globe map.jpg [View same] [iqdb] [saucenao] [google]
2553174

>> No.2553192

hooray for OP!

>> No.2553203
File: 28 KB, 395x220, map projection.png [View same] [iqdb] [saucenao] [google]
2553203

>> No.2553208
File: 13 KB, 254x321, 1295464352444.jpg [View same] [iqdb] [saucenao] [google]
2553208

>wants accurate shape
>uses a projection to represent the world
mfw

get a fucking globe with the world printed on it. It isn't perfect but it's a good approximation.

>> No.2553209
File: 114 KB, 1757x924, transverse_mercator_3.jpg [View same] [iqdb] [saucenao] [google]
2553209

>>2553127
Here's an earlier projection I made, but it's not as good. This one is a Mercator projection. It has too much distortion at the top and bottom.

Yea, I try to put the distortion in the ocean. In the OP map there are four points of maximum distortion, 90 degrees apart, in a great circle. I position the earth so one point is in the south Atlantic, one is in the south Indian Ocean, and two are in the north Pacific. You can see these four points arranged in a square on the map.

>> No.2553215

>>2553158
What if we made a television screen that acted like a 3D screen, so we could use it to represent 4D models in a variety of orientations?

>> No.2553218

India and Sri Lanka are all types of fucked up

>> No.2553234
File: 165 KB, 800x427, in_the_mind.jpg [View same] [iqdb] [saucenao] [google]
2553234

>>2553174
It's a cube, you retard.
Simplicity is the best complexity.
Just because making the Earth's structure look more complex, doesn't mean it's correct or smarter. It's like peeling a banana, you can use your hands and do it quick, or you can go cut down six trees and carve special skinning knives; start a fire with two twigs and some hay, slowly melt the skin of the banana, and as it hits a hot temperature, stab stab a knife into the skin, cut it down slowly, and sort of scrape the knife around until the skin comes off. Then eat.

Science is fucking retarded.

>> No.2553242

>>2553215
What if we brought Carl Sagan back from the dead?

>> No.2553248

>>2553234
Actually, it's an ellipsoid. And cubes are more complex than spheres.