[OSM-talk] 1) Messy Overlapping 2) Messy Layers 3) Bridges 4) Trunk/primary 5) Forum

[Ben Robbins]

5 problems I have...please split up into seperate topics for reply.  Check 
image for refernces..

http://i57.photobucket.com/albums/g226/ben_robbins_/osm3things.png

1)  Where different highway types meet at junctions it usually renders quite 
a messy overlap of the core where 1 of the cores renders later and has a 
rounded end.  In just adding an additional tag (for the purpose of the 
example I have added core=yes) you can make selected cores render again 
later and clean up junctions.  What would a good tag for this be? or...are 
there better methods of sorting out this asthetical fault?.

I seem to have had to make loads of different tags just to sort out how 
things rendered.  I'm considering just putting them all under "misalanius=" 
or extra/other/render etc.  Any ideas/suggestions?

2)  A common problem that I've heard mentioned.  When things are on 
different layer there are lines between them.  If an additional way is stuck 
over the top tagged the same as in point 1, this goes away for the core.  Is 
it ok just to add this tag and have a set of layers to sort the problem?  
sounds 'route planner messy' to me.

3)  Bridges....  I've been adding them for quite some time, and now there is 
the bridge=yes rendereding.  I stated why I thourght this tag was 
inconsistent before, but I am more concerned with the way the problem of 
bridges has been approuched.  I have a bad feeling that there are so many 
different forms and odd and excentric bridges in the world, that just adding 
a tag and trying to render them correct is not going to always be 
satisfactory.  The bridge may in most parts corralate strognly with the way 
that passes over it, but there are many exceptions.  I would have tried to 
solve the problem from the bottom up.  So just have the bridge drawn, as I 
do so, in its elements in josm. Its incredably basic, but therefore can be 
used anywhere, and if JOSM (or any editing program) created them 
automatically or on command then I think this would confront the problem 
from the correct angle.  This allows for full freedom of reshaping the 
bridge, as well as allowing the bridge tags to be seperate.   A road can 
split into 2, rejoin itself, go threw a slalum and have a river running over 
and under it all the way along the bridge, and it would still be quite 
simple to map.

In the end I think drawing a map with a pencil and paper will have far less 
hurdles than osm is having/will face, just becuase it has no rules. The more 
data that can be seen in osm datas raw elements the better as it is free of 
these rules.    Predefined tags are great where they work and I'm all for 
them, but there should always be the safety net allowing data to be added in 
its most basic form, and therefore most acurate.  If josm could support this 
it would be extreamly helpful I think.

4)  Primary and Trunk render differently at the different zoom levels 
online.  I asume this is known about, but I've never heard it mentioned.  Is 
it not quite an easy thing to fix?

5) As disscussed on the wiki main page disccusion, where is the forum? It's 
been gone for a while now, and it was in a bit of a state, but I, along with 
quite a few others it would seem, would far prefer to be using that to sort 
problems such as these ^^.

Sorry these emails seem to get kinda long.  I easily have a 100 
questions/concerns but these are some at the front of my mind at present so 
I throught I would chuck them into the ML and see what comes out.

Thanks!

Ben

_________________________________________________________________
MSN Hotmail is evolving – check out the new Windows Live Mail 
http://ideas.live.com