[OSM-talk] New tool in Potlatch 2 for areas that share a way

[Daniel Sabo]

This is a really bad idea. Drawing collinear features by sharing nodes is NEVER a good idea beyond 1 or 2 shared corners, that's what multipolygons are for.

When the ways get attached to large objects (like an administrative boundary or national park) it becomes impossible to edit them from an extract without unintended side effects.

On Jan 30, 2011, at 4:20 PM, Steve Bennett wrote:

> Hi all,
>  Thought I would announce a new tool that is now available in
> Potlatch 2 that makes it easier to draw ways that share nodes with
> another way: "follow".
> 
> Here's how it works. Say you want to map a golf course that shares
> half its boundary with a landuse=industrial.
> 
> 1) Start drawing the golf course
> 2) Click on one of the nodes of the industrial area, as normal
> 3) Click the next node in the industrial area, as normal. (Without
> this tool you would just continue doing this all the way around)
> 4) Press "F". The way is now automatically extended to the next node.
> 5) Keep pressing F as far as necessary.
> 
> You could also use it for administrative boundaries that run along
> roads, beaches that run along coastlines, or any other place where
> ways are colinear. It's just a shortcut for drawing much faster.
> 
> Obviously, follow the conventions that are in place in your local area
> - if your convention says that a park should not share nodes with a
> road that runs along its edge, continue to respect that.
> 
> Steve
> 
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