<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body text="#000000" bgcolor="#ffffff">
Hi<br>
<br>
I <i>think</i> I'm responsible for the problems in Hudson Bay. The
issue was I forgot to delete the intermittent coastline from Canvec
and only discovered my error once the coastline was updated. I've
fixed the problem, but I have no idea if I am responsible for that
big blob of grey in the southern half (I didn't do any editing
there, I have to wait until the next update to find out). I've seen
coastline errors many times before, I remember there was a large one
in Southern Ontario for a while, and Newfoundland had several until
recently.<br>
<br>
Here is the problem:<br>
-Editors don't notice their mistakes until the coastline is updated,
so they stick around in the data for a while<br>
-When the mistakes are fixed it takes a few weeks for the
corrections to show up on mapnik<br>
-Coastlines are handled differently than the natural=water tag,
which confuses people<br>
-Mapnik doesn't render natural=water at high levels<br>
-Mapnik ignores the water=intermittent tag <br>
<br>
I'm not suggesting we use natural=water (that would be a terrible
idea), there just needs to be a way for editors to check the
rendering of their coastlines.<br>
<br>
Sam Dyck <br>
</body>
</html>