[OSM-newbies] more rendering questions

[Robert Helvie]

Previously on the newbies list ...

>> My question is ... Does JOSM not bother to actually correctly render
>> items with respect to layer? I have yet to upload the changes to the
>> data to see if Mapnik or Osmarender renders them correctly, but I
>> will. (I was more concerned with what JOSM was showing me.) If JOSM
>> DOES take the layer tag into consideration, then any ideas on what is
>> happening here?

> Thomas Wood said:
> I don't think that JOSM takes layering into account, osmarender and
> mapnik should render it as you've described it.

OK, so the bridges in question have rendered correctly in Osmarender, so I
will take Thomas' supposition about JOSM and make it my own. (Though I think
correct rendering in JOSM would make adding bridges and layer tags more
obvious to edit-ers (editors?) )
<http://img374.imageshack.us/img374/4746/okbridgespr5.jpg>

However I have encountered something else rather odd.
<http://img522.imageshack.us/img522/8899/notokbridgesqh7.jpg>

I edited the highways to include the bridges after putting in the surface
road. However, at the time I did not bother to include a layer tag seeing as
there is only the one layer, the bridge, above layer 0 (surface layer). Note
how the highways are above the surface road, but the "bridge" designator
still renders below the surface road. Rather odd if you ask me, and
something I think the renderer should be able to handle without a layer tag.
Is this a one-off, or are layer tags essential now? For every road, river,
and way?

I have since added the layer tags via Potlatch to hopefully make things
render correctly. Note: Mapnik has yet to show the changes in this area.

Just thought I would add a little closure to the subject. While opening up
another can of worms.

Thanks for the comments.

Robert


-- 
"We should give meaning to life, not wait for life to give to
give us meaning. "
~ unknown
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