[Talk-GB] Who was mapping Dulwich park? (also make alledits public!)

Richard Fairhurst richard at systemeD.net
Thu Jul 26 11:04:15 BST 2007

Tom Chance wrote:

> Here's the area, just have a look in JOSM:
> http://www.openstreetmap.org/?lat=51.44551183981207&lon=-0.077243376360124&zoom=15
> Problems I've found include:
> 1. Adding ways to existing nodes often doesn't work, resulting in two nodes
> right next to each other. See, for example, way #4946782 (a semi-circular
> footway at the top of Dulwich Park). Perhaps Potlatch could be a bit more
> obvious when it is connecting a way to an existing node (visually, I mean),
> and a bit more zealous to do this?

That's an interesting point, there's a bug there I'd not noticed before!

Theoretically the pointer changes to pen-with-x when you're connecting  
to an existing node, or pen-with-+ when you'd be connecting to a new  
node. But it looks like the pen-with-x doesn't appear when you're  
hovering over an endpoint. I'll fix that.

The other visual prompt is the text at the top right. This really  
needs a semi-transparent background so it stands out more. That's half  
done, I must finish it.

> 2. I also can't work out how to start a new way with a new node in an
> existing way. For example, there are two parallel ways in place and I want
> to add a road that connects them. I usually start it somewhere in the
> middle, connect it to one, and then revert to JOSM to finish the job. Maybe
> I'm being an idiot!

Like Andy says, shift-click. I think this is definitely one for the  
online docs. :)

> 3. When you create a new node in an existing way, it seems to leave the old
> segment in place, so you have to find that in JOSM and delete it;

Hm, thanks for that. I can't reproduce that (well, not in the current  
Potlatch), but that's not to say it's not happening. Will investigate.

> 4. There are some ways over the top of existing, un-tagged and un-wayed
> segments. Perhaps Potlatch should show these by default, and make it easy
> to erase them? In this case it looks like the segments contained no useful
> data and just need to be scrubbed from underneath the new ways;

The main reason I don't have unwayed segment display turned on by  
default is that it's really slow. It would boggle the server if  
everyone using Potlatch requested those little pink lines on each  
redraw. It's not ideal, I know.

Potlatch does now allow you to 'wayify' or erase unwayed segments,  
though not in a particularly intuitive manner as yet.

Thanks for the suggestions - certainly some stuff for me to be getting  
on with! :)


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