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<DIV><FONT face=Arial size=2>+1 from me</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>David</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=S.L.Chilton@mdx.ac.uk href="mailto:S.L.Chilton@mdx.ac.uk">Steve
Chilton</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=artem@mapnik.org
href="mailto:artem@mapnik.org">Artem Pavlenko</A> ; <A
title=reviews@pacific-rim.net href="mailto:reviews@pacific-rim.net">David
Groom</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=talk@openstreetmap.org
href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 26, 2007 2:39
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [OSM-talk] Slippy map -
Mapnik layer UK coastlines</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff
size=2>Artem,</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff size=2>Can
you explain what is possible/required (step-wise), somewhere in
wiki?</FONT></SPAN></DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff size=2>I am
willing to particpate in the work if it is something I can
encompass.</FONT></SPAN></DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff
size=2>Cheers</FONT></SPAN></DIV>
<DIV><SPAN class=637403813-26032007><FONT face=Arial color=#0000ff
size=2>STEVE</FONT></SPAN></DIV><!-- Converted from text/plain format -->
<P><FONT size=2>Steve Chilton, Learning Support Fellow<BR>Learning and
Technical Support Unit Manager<BR>School of Health and Social
Sciences<BR>Middlesex University<BR>phone/fax: 020 8411 5355<BR>email: <A
href="mailto:steve8@mdx.ac.uk">steve8@mdx.ac.uk</A><BR><BR>Chair of the
Society of Cartographers:<BR><A
href="http://www.soc.org.uk/">http://www.soc.org.uk/</A><BR>Mind the (Map)
Gap:<BR><A
href="http://news.bbc.co.uk/1/hi/magazine/5413010.stm">http://news.bbc.co.uk/1/hi/magazine/5413010.stm</A><BR></FONT></P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
talk-bounces@openstreetmap.org [mailto:talk-bounces@openstreetmap.org] <B>On
Behalf Of </B>Artem Pavlenko<BR><B>Sent:</B> Friday, March 23, 2007 1:49
PM<BR><B>To:</B> David Groom<BR><B>Cc:</B>
talk@openstreetmap.org<BR><B>Subject:</B> Re: [OSM-talk] Slippy map - Mapnik
layer UK coastlines<BR><BR></FONT></DIV>Hi David,
<DIV><BR>
<DIV>
<DIV>On 23 Mar 2007, at 11:48, David Groom wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV style="MARGIN: 0px">It seems that the UK coastline is beginning to
render better in the Mapnik<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">layer of the slippy map (it's a solid blue fill,
rather than the odd shaped<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">grey polygons).</DIV></BLOCKQUOTE>
<BLOCKQUOTE type="cite">
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV style="MARGIN: 0px">However it does appear that the source for the
coastline might be a rather<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">out of date planet file.</DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV style="MARGIN: 0px">In some places, eg<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px"><A
href="http://www.openstreetmap.org/index.html?lat=50.85383936185782&lon=-1.315713476905844&zoom=15">http://www.openstreetmap.org/index.html?lat=50.85383936185782&lon=-1.315713476905844&zoom=15</A><SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">,there is an exact correlation between coastline
which is shown in the<SPAN class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">Mapnik and Osmarender layers.</DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV style="MARGIN: 0px">In other places eg ,<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px"><A
href="http://www.openstreetmap.org/index.html?lat=50.81094579389664&lon=-0.09869895092239864&zoom=15">http://www.openstreetmap.org/index.html?lat=50.81094579389664&lon=-0.09869895092239864&zoom=15</A><SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">,the coastline outline in the Osmarender layer
seems to be much more recent<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MARGIN: 0px">than the Mapnik layer.</DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV></BLOCKQUOTE>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>For most of the world I was using original shoreline data, hence it's
not as smooth as it should. Polygons are only available for England and
Wales, the rest gets blue shoreline lines. To have proper
polygons for the whole planet :</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>1. We need to agree that storing countries boundaries as polygons is
way forward.</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>2. We have to decide if storing these polygons in main OSM database is
a good idea or not. I personally think it'll be better to store them
separately. </DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>3. Start creating polygons. I have all the tools and I'm happy to help
anyone, but it is a big task which requires community participation.</DIV>
<DIV> On the other hand, If one person capable of fixing most of the UK
coastline it should be peanuts for OSM as a whole. If you want to see nice
blue sea and land just do it, don't wait!</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV> Cheers,</DIV>
<DIV>Artem</DIV><BR>
<BLOCKQUOTE type="cite">
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"></DIV>
<DIV style="MARGIN: 0px">David<SPAN
class=Apple-converted-space> </SPAN></DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV
style="MARGIN: 0px">_______________________________________________</DIV>
<DIV style="MARGIN: 0px">talk mailing list</DIV>
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href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</A></DIV>
<DIV style="MARGIN: 0px"><A
href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk">http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk</A></DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV></BLOCKQUOTE></DIV><BR>
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<DIV>Artem Pavlenko</DIV>
<DIV><A href="http://mapnik.org">http://mapnik.org</A></DIV>
<DIV><BR class=khtml-block-placeholder></DIV><BR
class=Apple-interchange-newline></SPAN></DIV><BR></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>