[talk-au] Time to grow up...

Roy Rankin rrankin at ihug.com.au
Sat Dec 13 08:34:26 GMT 2008

The error message which is significant is the overlapping ways message 
for the runway. I have seen this on occasion, but do not know why it 
happens. Note that there are arrows on both ends of the runway and if 
you select the overlapping ways error, only one set of nodes appear.

There are two ways between the same two nodes.

To fix this add a node near the centre of the way and then shift this 
node and you should get a triangle.  Select the node you created. While 
holding shift, select one of the end nodes and then type p. Select the 
way between these two nodes and delete the way. Select your new node and 
delete it.

In regards to the overlapping areas, caused by common area boundaries I 
usually ignore them.(you can select each validation message and then 
click "ignore". Then you will not see the message again).  When better 
images become available it is much easier to adjust shared boundaries if 
they use the same nodes,.

Note that for city areas such as parks, I draw the boundaries inside the 
surrounding roads. After all there is usually a footpath between the 
park and the road.

Roy Rankin

Darrin Smith wrote:
> On Sat, 13 Dec 2008 13:27:50 +1100
> Matt White <mattwhite at iinet.net.au> wrote:
>> Anyway, I've been playing around in JOSM, and I've made some changes, 
>> and uploaded them, but it was giving me warnings or something about 
>> overlapped areas. I couldn't see anything I'd screwed up too badly,
>> but was wondering if anyone with more JOSM experience than myself (so
>> you'd need at least 43 mins of JOSM expererience to fulfull the
>> requirement), could cast a quick eye over what I just did, and make
>> sure I haven't cocked it up too bad.
>>From what I can tell, the JOSM validation will say it has
> overlapping areas when 2 adjacent closed ways share a common
> consecutive pair of nodes (i.e. a common line). I get the impression
> it's a matter of personal opinion whether or not you leave it like that
> or separate it in to 2 adjacent parallel ways with separate points (or
> even every 2nd point common if you want to be tricky I guess ;)

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