<div dir="ltr"><div><div>Please, forgive my 2 cents on this:<br><br></div>Depending on which projection each system is using, distance calculation may (and usually) differ by that much and maybe more. As far as I know, Google uses a Mercator-like projection on a spherical Earth model, which is not correct since Google coordinates refer to the WGS-84 ellipsoid. So you can expect differences, greater with higher latitudes.<br>
<br>So don't use Google as an accurate reference.<br><br></div>all the best,<br><br>Paulo<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-02-20 17:23 GMT-03:00 WanMil <span dir="ltr"><<a href="mailto:wmgcnfg@web.de" target="_blank">wmgcnfg@web.de</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Gerd,<br>
<br>
which difference do you expect regarding the indirect links? I want to get an idea what I should check on my device.<br>
<br>
I have compiled a map using the patch and it seems that distances are slightly underestimated.<br>
One example: The distance between Hambug, An der Alster and Munich, Maximiliansplatz:<br>
MapSource: 776km<br>
Google Maps: 788km<br>
Both use the same route.<br>
<br>
I didn't notice it before.<br>
<br>
WanMil<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi all,<br>
<br>
attached is a patch for r3065 in the high-prec-coord branch.<br>
<br>
It should improve long distance routing, as it adds additional<br>
arcs from minor roads to major roads (so called indirect links).<br>
Maybe the improvement is only seen on the device.<br>
<br>
It would be great to hear some test results (good or bad),<br>
compared to trunk r3057 and compared to r3065.<br>
<br>
A compiled binary is here:<br>
|<a href="http://files.mkgmap.org.uk/download/179/mkgmap.jar" target="_blank">http://files.mkgmap.org.uk/<u></u>download/179/mkgmap.jar</a><br>
<br>
|Gerd<br>
<br>
<br>
<br>
<br>
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