<div dir="ltr">i will run splitter log now on all my countries i need to update due to my international work <div>and as done i will post accordingly </div><div><br></div><div>stephen </div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 6, 2015 at 7:14 AM, GerdP <span dir="ltr"><<a href="mailto:gpetermann_muenchen@hotmail.com" target="_blank">gpetermann_muenchen@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Stephen,<br>
<br>
last year mkgmap failed for a tile in Canada because of<br>
a special case, see my post:<br>
<a href="http://gis.19327.n5.nabble.com/ontario-canada-maps-tp5798080p5798490.html" target="_blank">http://gis.19327.n5.nabble.com/ontario-canada-maps-tp5798080p5798490.html</a><br>
<br>
At that time I changed mkgmap so that it doesn't<br>
generate as many POI for these ways, and maybe later<br>
we also changed the split algo in mkgmap to<br>
avoid this problem.<br>
I think there is no good reason to use a very small --max-nodes<br>
value when you plan to create a map for a country<br>
or continent. It may be useful for the new devices with only<br>
8 MB on a memory card.<br>
<br>
Gerd<br>
<br>
<br>
steve sgalowski wrote<br>
> in some of the countries i do , if i dont make the node count small , the<br>
> map size exceedds , size limit of 3 gb<br>
> then unshure how , canada has done this ok<br>
><br>
> stephen<br>
><br>
><br>
> On Tue, Jan 6, 2015 at 5:24 AM, Gerd Petermann <<br>
<br>
> gpetermann_muenchen@<br>
<br>
>> wrote:<br>
><br>
>> Hi all,<br>
>><br>
>> I wonder what splitter should do in this case:<br>
>><br>
>> Stephen uses paramter --max-nodes=80000<br>
>> and splitter reports<br>
>> "Highest node count in a single grid element is 557,084"<br>
>><br>
>> It is obvious that at least one tile will have much more than the<br>
>> requested 80.000 nodes,<br>
>> on the other hand, the file africa.osm.pbf contains large nearly empty<br>
>> areas,<br>
>> and that makes it very difficult to find a good split.<br>
>> The current version r416 fails because it doesn't accept tiles with less<br>
>> than 5% of<br>
>> the max-nodes value, so it searches for a solution where every tile has<br>
>> at<br>
>> least 4000 nodes,<br>
>> and that might not exist.<br>
>><br>
>> I see these options:<br>
>> 1) splitter can continue trying to split the data, accepting almost empty<br>
>> output files<br>
>> (e.g. some with < 5 nodes and very high aspect ratios like 32)<br>
>> 2) if that fails, splitter can set the max-nodes value to 557,084 and<br>
>> try<br>
>> again<br>
>> 3) or stop with an error message that tells the user that it is not<br>
>> possible<br>
>> to split with the used resolution<br>
>> 4) or restart using a higher resolution (15 would be required here<br>
>> instead of 13),<br>
>><br>
>> @Stephen<br>
>> What reason do you have to use such a small max-nodes value?<br>
>> Would it be ok for you to use a higher one?<br>
>><br>
>> Gerd<br>
>><br>
>><br>
>><br>
>><br>
>><br>
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>><br>
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>><br>
><br>
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</blockquote></div><br></div>