[Talk-ca] Great Lakes shoreline

[Richard Weait]

On Wed, Apr 20, 2011 at 12:29 PM, James A. Treacy <treacy at debian.org> wrote:
> Hello,
> I have been adding canvec data for the last part of the Bruce
> Peninsula and noticed that the existing shoreline is quite different
> than that given by the canvec data. The source for the existing
> coastline is r_coastlines and I have no idea who/what that is.
> I don't know which is more accurate but the canvec coastline matches
> much better with the land features.
>
> Should the existing coastline be left alone or should it be switched
> over?

Dear Jay,

That's the eternal question isn't it?  With one source, we just use
it.  With multiple sources; it's always about evaluation and
comparison. ;-)

r_coastlines doesn't ring a bell, but I know that PGS coastlines was
fairly easy to improve upon.  Sounds like you are seeing canvec as a
better match to the other land features, which may also be from
canvec.  I'm not sure you should see that as definitive.  But if the
canvec is a better match, and yahoo / Bing don't disagree, ... ?

If you decide to proceed, and the water bodies are tagged as
coastline, be aware that coastline rendering is sensitive, and does
not re-render immediately.