Re: [talk-au] How many points are too few to upload?

2009-06-17 Thread Ross Scanlon


 the other hand you can get 10,000+ point files being
 uploaded as well and I need to run gpsbabel over the file
 before uploading it.

 Does anyone know if this is a good filter to use against gpx files?

 gpsbabel -i gpx -f test -x simplify,crosstrack,error=0.0001k -o gpx -F
 test.gpx

 Before: 9180 points
 After: 3207 points

Have you loaded both into josm and seen how they compare?

That would give you an idication on how the filter affects the data.

-- 
Cheers
Ross



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Re: [talk-au] How many points are too few to upload?

2009-06-17 Thread John Smith

--- On Thu, 18/6/09, Peter Ross pe...@emailross.com wrote:
 In that case I can't help you whether it's a good idea or
 not.
 Generally I upload all my points to OSM and then let other
 people
 decide whether or not they want to filter them.

I have no problem doing that, but I thought I was being, in a sense 
responsible, by filtering out the redundant points recorded. 


  

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Re: [talk-au] How many points are too few to upload?

2009-06-17 Thread John Smith

--- On Thu, 18/6/09, Ross Scanlon i...@4x4falcon.com wrote:
 Have you loaded both into josm and seen how they compare?
 
 That would give you an idication on how the filter affects
 the data.

No I hadn't, but I'm in the process of doing it now.

I was hoping for a common consensus, if there was one, on redundant information.

Something interesting I did note, when I compressed both files, so I could 
download/test them, the before file was 35k, the file gpsbabel produced is 45k.


  

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Re: [talk-au] How many points are too few to upload?

2009-06-17 Thread John Smith

 Have you loaded both into josm and seen how they
 compare?

For the most part they are almost identical, but there is a few small 
differences, although probably not enough that most people would worry about, 
but the bigger question is how OSM stores them, if they compress the files the 
original would be better as gpsbabel makes them bigger.


  

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