mapcss find one or more nodes next to current one

[francians]

Hello,

I'd like to use mapcss to find all the nodes next to current one...
Example: if there is a natural=tree and I want to search for another one in 20 mt or so.
Is there something like this?
I also think to use this to search for a platform for each stop position with the same name.
What do you think?

Francesco

[Klumbumbus]

Replying to francians:

Is there something like this?

No, nothing like this so far.

[francians]

Ok. Thanks for replying...
I could work on this if there is any kind of interest and if you could give some help.

[Klumbumbus]

Replying to francians:

if you could give some help.

Sorry I personally not, I can't program Java.

[francians]

I am a Java developer.. but I don't have much experience in JOSM project (just few patches still unrewevied) and so I may need some hint

[GerdP]

You may start looking at methods NavigatableComponent.getNearestNodes() and DataSet.searchNode()

[francians]

Will do! Thanks

[francians]

Replying to GerdP:

You may start looking at methods NavigatableComponent.getNearestNodes() and DataSet.searchNode()

I started thinking to the new syntax and I come with:

closest(expr, distance): returns a list of matching nodes

please find some example:

*[public_transport=platform][!contains(key("name"), closest(
    "*[public_transport=stop_position][name]",
    20))]

*[natural=tree][count(closest("*[natural=tree]", 10))>1]

searchNodes() could be fine, do I also need a Finder to evaluate my expression?
Should I cut the BBox for the distance?