tangoGPS magnify patch

Marcus Bauer marcus.bauer at gmail.com
Sun Apr 11 20:05:04 CEST 2010

On Sat, 10 Apr 2010 23:06:48 -0400
Joshua Judson Rosen <rozzin at geekspace.com> wrote:

> > > I have a patch that makes it possible to scale the details on maps
> > > (e.g.: text, icons, line-widths) and change the amount of detail
> > > shown without zooming the map; 
> > 
> So, when you select `fewer, bigger details', the code just decreases
> *pixel-density* and a `zoom-level offset' adjusted accordingly.
> The map remains at the same zoom-level; but the text and icons get
> bigger, the streets and other lines get wider; the amount of
> visual `clutter' decreases, and information-clarity goes up.
> If you select `more, smaller details', the pixel-density is increased
> and the zoom-offset adjusted in the other direction. Again, the map
> remains at the same zoom-level; but the text and icons get smaller,
> the streets and other lines become thinner; the amount of information
> visible at a given zoom-level (the information-density) increases.

This patch is potentially interesting on the Freerunner due to the 3x
higher dpi of the screen. The patch makes future extensions for layers,
non-merkatoor and no wgs84 more error prone and therefore currently is
not suitable for tangoGPS. However, you can ask the packagers of SHR
etc. if they are interested in inclusion.


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