Live data from Hacker News

Google Maps is no longer a flat map

techcrunch.com

131–140 of 173 posts

Re: Google Maps is no longer a flat map

#131
post #20

I wonder what the long term geopolitical consequences will be when we all stop looking at projected maps. That small peninsula to the west of Asia just got a little smaller. A certain island kingdom is now more clearly the size of Uganda. Maybe Google can also flip the globe "upside-down" for all users "below" the equator.

Do we really think very much is really affected by map projections? Korea looms large in people's imaginations for a lot of reasons that have nothing to do with its occupied land mass size, and a lot to do with their history and cultural and economic power.

If Korea is not occupied by the U.S. and allowed to unite then it would take a decade or so before their economy would be number two in the world with them kind of needing to be on the U.N. Security Council.

The same can't be said about if Sudan was united again, Sudan would not be magically punching above India, Russia and Germany in international commerce.

The world where we see the world as it is, a sphere that we can interact with and with that sphere being the default view has been a long time coming. We will look back and wonder why we got the perspective wrong for so long. There are no other objects we display in Mercator Projection et al.

If we could go back in time with what the fine people at Google have achieved and give it to navigators of the past, in the days before aeroplanes got popular, then all the hacks that 'demand Mercator' would never have arisen. Maybe we would have to teleport GPS back to this fictional past too.

The none-sphere maps make as much sense as those paintings done before perspective was worked out, we have just ended up believing them out of familiarity and due to the navigation and other hacks devised for the atlas makers of the past.

As recently as twenty years ago the idea of just showing the earth as a sphere for things like weather broadcasting would have seemed a radical and controversial idea. Thanks to Google and de-facto Maps we have made a small but important evolutionary leap in understanding our world.

Re: Google Maps is no longer a flat map

#132

A couple of suggestions for improvements: 1) Use quaternions instead of Euler angles for rotation 2) Show latitude and longitude grid so it's easier to identify equator and polar regions, etc...

Langitude longitude grid would definitely make it easy to map it to the flag mercaretor projection.

One can easily also correlate why things on the pole look so big when you have evenly spaced latitudes in a sphere.

Re: Google Maps is no longer a flat map

#133
post #73

Earlier quoted context omitted.

And once you land on those country crossroads, you can continue exploring the area at the street level. It's really an incredible tool for sating wanderlust - just pop over to some place you've wanted to visit and wander the streets via streetview, all from the comfort of your seat! Speaking of which, GeoGuessr [1] is a great example of how to enjoy Google Maps. You start at some random streetview and try to figure o…

As far as I know google street view costs money from this month, and it's not exactly cheap, $14 for a thousand streetviews: https://cloud.google.com/maps-platform/pricing/sheet/ I wonder if this tool stays free, lots of site owners are complaining about paying much more with the new pricing.

I've never seen a third party site using streetview so not much will be lost. But considering the effort and volume of data they have meticulously collected you can't blame them for monetizing it directly. Google is going to learn their lesson with the insane pricing on regular maps, though.

Re: Google Maps is no longer a flat map

#135
post #69
post #42

Earlier quoted context omitted.

That does seem to show older images though.

Agreed, the images do seem lower quality than they used to be. I was curious, though, and chose buildings at random around the Google office in NYC, just to do a side-by-side, and even the old pictures look better: https://i.imgur.com/0xEG4pb.jpg https://i.imgur.com/bxwr3Ez.jpg

I'm assuming left is old and right is new? This looks like aerial photography shot from a plane rather than satellite imagery, which seems like it would depend more on the quality(?) of the plane than the quality of the cameras.

Re: Google Maps is no longer a flat map

#136
post #76

Earlier quoted context omitted.

The author of TFA didn't write "perfectly accurate" but "land mass size on a relative scale". Bud is correct.

the author of TFA probably thought the desire for correct shape in a map is implied and wasn’t trying to defend against map pedantry. of what use is a map if the shapes are wrong?

One of the revolutions in the first Underground/Subway/Metro maps was that by throwing away the actual shapes, it is able to represent the stations and the relationships between them far clearer than otherwise.

Re: Google Maps is no longer a flat map

#137
post #130

While I was working on the PowerBI globe map visualization https://powerbi.microsoft.com/en-us/blog/visual-awesomeness-... (video in link) I had to do some funky magic to stitch square tiles in a sphere from bing maps and do reverse mercerator projection. I had to also ensure GPS coordinates would exactly align to the right pixel otherwise the 3D chart would all look weird. So there was a lot of fun math involved ove…

I'm interested in learning more! I imagined linear interpolation could work too. What went wrong?

Re: Google Maps is no longer a flat map

#139
post #73

Earlier quoted context omitted.

As far as I know google street view costs money from this month, and it's not exactly cheap, $14 for a thousand streetviews: https://cloud.google.com/maps-platform/pricing/sheet/ I wonder if this tool stays free, lots of site owners are complaining about paying much more with the new pricing.

I've never seen a third party site using streetview so not much will be lost. But considering the effort and volume of data they have meticulously collected you can't blame them for monetizing it directly. Google is going to learn their lesson with the insane pricing on regular maps, though.

They could monetize it by putting ads on the maps/streetviews. They are an ad company after all, so they should have an option to show a map with ads for free, or without ads, but then it costs money.

Re: Google Maps is no longer a flat map

#140
post #49

Earlier quoted context omitted.

The eyes see a 2-dimensional picture. Computer displays produce a 2-dimensional picture. There is no such thing as a “3D map” on a standard computer display. Only an orthographic (or maybe perspective) projection which animates in response to user input. In general an orthographic projection is a poor choice. The thing going for it is that it is easy to understand by analogy to a physical globe, and human spatial und…

Regardless of what the eye sees, the brain perceives three dimensions. This projection happens to be the one that the brain can automatically unpack into an accurate 3D representation. Technically, things near the edges are squished and distorted, but that gets undone in the wetware.

Let me give you a concrete example.

Here is what North America looks like on this new map:

https://i.imgur.com/lCI8DjY.jpg

This is not a good projection to use if you want to see all of North America. There is dramatically more distortion than necessary, and shapes near the edges get very squished (the west coast of the US is okay), but it is not at all obvious to a naïve viewer what kind of distortions are involved, and past experience looking at soccer balls or whatever isn’t going to fix it.

(Note: a Mercator projection is also not a good choice for this. On a Mercator projection sizes are dramatically bloated as you go north.)

Post reply on HN