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<DIV><FONT size=2 face=Arial>Pierre</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>These additional ways are not duplicates, as they
do not follow the same path as the main river. If you delete the shorter
ways then the islands will "disappear" from the map.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>There are two possible methods of mapping these
islands.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>1) the simple method, which has been used in your
example, where the main river is drawn as one way, and the path of the river
round an island is drawn as another way.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>2) use areas and relations, here the main
"outside of the river" would be drawn as one way, the island would be drawn as
another way, and both would be added to a multipolygon relation.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>David</FONT></DIV></DIV>
<DIV><FONT size=2 face=Arial> </FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=infosbelas-gps@yahoo.fr href="mailto:infosbelas-gps@yahoo.fr">Pierre
Beland</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=talk-ht@openstreetmap.org
href="mailto:talk-ht@openstreetmap.org">talk-ht@openstreetmap.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 22, 2010 2:09
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Talk-ht] River ways : How to
treat Duplicates</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Verdana><FONT size=2></FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT color=#0000ff size=2>
<DIV style="FONT-FAMILY: arial,helvetica,sans-serif; FONT-SIZE: 10pt">
<DIV
style="FONT-FAMILY: times new roman,new york,times,serif; FONT-SIZE: 12pt"><BR>
<META content=off http-equiv=x-dns-prefetch-control>
<DIV style="FONT-FAMILY: arial,helvetica,sans-serif; FONT-SIZE: 10pt">
<DIV style="FONT-FAMILY: arial,helvetica,sans-serif; FONT-SIZE: 10pt">
<DIV
style="FONT-FAMILY: times new roman,new york,times,serif; FONT-SIZE: 12pt">
<DIV
style="FONT-FAMILY: arial,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt">Before
deleting duplicate ways for rivers, I want your advice.</DIV>
<DIV
style="FONT-FAMILY: arial,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><BR><SPAN>For
Example, Les Trois Rivières, way=49375347 is the main river way. But we also
find few ways that trace a second route around islands : </SPAN></DIV>
<DIV
style="FONT-FAMILY: arial,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN>ways
48392811, 48392826, 48475427, 48475510, 48475442, 48474646, 48476419, 48474401, 48477201, 48474784, 48475251.
</SPAN><SPAN></SPAN></DIV>
<DIV
style="FONT-FAMILY: arial,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN>Should
these segments be considered as duplicates and deleted</SPAN><BR><BR><BR><SPAN
style="FONT-STYLE: italic; COLOR: rgb(0,0,191); FONT-WEIGHT: bold">Pierre
Beland<BR></SPAN></FONT></FONT><FONT
face=Verdana></DIV></DIV></DIV></DIV></DIV></DIV></DIV></FONT>
<P>
<HR>
<P></P>_______________________________________________<BR>Talk-ht mailing
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