w********2
发帖数: 16371 | 1 我用卫星图太多，似乎没有体会到，如果这些说的是真的，矢量图基本就是类似离线的
了：
“This might be an interesting counter-interpretation of the same data. It
explains that the 4% figure represents the # of people who are DOWNLOADING
DATA from Apple Maps on day 5 after iOS6 was released, and that this may be
very different from the # of people who are spending time USING Apple Maps.
Since one of the huge advantages of Apple Maps is that it is much more
efficient with representing and caching data, such that a one-time download
of data the first time you use it may cover your needs for quite a while
until you move to a different area. Where by different area, we're talking
practically a different country (see below). In contrast, every time you
open Google Maps in iOS5, it has to reload data. The key difference is that
Google Maps on iOS 5, because it uses raster graphics, needs repeated
downloads. You'll see this if you load a page on maps.google.com in iOS 5,
then turn the phone to Airplane mode - so the Wi-Fi and data connections are
off - and then try to scroll off the page. You'll hit a blank spot because
there isn't any data. By contrast, the vector graphics used in Apple Maps
don't require extra downloads. You can confirm this by loading a page (
choose your own location, for simplicity), and then turning the data
connections off. Now try scrolling across the page: it will load. You'll be
able to see detail in your surrounding area. You'll be able to zoom in and
out. If you're in a car or train, you should find that you can track your
travel - even plan your route, to some extent - with zero extra data. The
whole of the UK is encapsulated in less than 200MB, according to data from
CoPilot. That was certainly my experience earlier this week in Korea, where
on a visit to Samsung I had an iPhone running iOS 6 which had no data
contract. One evening I looked at the overview of North and South Korea (it
turns out Apple's Maps offer more detail than Google does for North Korea;
the latter's is just a white blank). The next day, with zero data coverage,
we were taken on a coach trip to a Samsung production facility. The phone
tracked our entire journey, with street-level data including the names of
shops, all the way. And all the way back. And then, later, out to the
airport. All that, without getting a single extra drop of data. So while
there's absolutely no reason to doubt that Snappli is correct in what it
shows about the amount of data being downloaded by iOS 6 users, it might be
worth pondering whether that's actually representative of time spent on maps
. That's likely to stay much the same.
Read more: http://www.electronista.com/articles/12/09/29/before.ios.6.25.percent.were.using.google.maps.daily/#ixzz27zlcHqhK
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