[HOT] Feedback on I think mapswipe

john whelan jwhelan0112 at gmail.com
Sun Dec 17 13:44:57 UTC 2017

It was apparent on at least a dozen tiles with different mappers.  One
classic one was a highway that ran top right to bottom left, four segments
of highway and three of no highway and that sort of matched the pattern on
the tile view in TM.  Several places where the image was a bit darker the
segments were missing.

There was no regular pattern as you might expect with mini tiling or grid.

My thoughts run along the lines of a large IPS monitor shows the contrast
and image better than a small smartphone screen but that's only a guess.

Cheerio John

On 16 December 2017 at 22:20, Pat Tressel <ptressel at myuw.net> wrote:

> I think the mapswipe overlay has now been removed but what I have noticed
>> is a number of highways in a straight line are not connected up.  You get a
>> stretch of highway then nothing other than a faint mark on the imagery
>> followed by another stretch of highway.
> What that pattern immediately makes me think of is that people were
> working within a grid cell, and just mapped the part of the highway within
> their cell, and that the intervening cells have not yet been mapped.  If
> the spacing isn't the same as the TM grid, perhaps some folks are using a
> different grid, perhaps something self-imposed.  For instance, they might
> map the area that shows in one screen at whatever zoom level they're using,
> save their work, go off to dinner...
> Is the faint mark on the imagery a mapped way of some sort, or is it the
> actual highway image?
> -- Pat
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