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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hey Curtis,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Should your points contain
a timestamp field you might try to order by it ;-)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><u><font size=5 color="#0080c0" face="Bauhaus 93"><span
style='font-size:18.0pt;font-family:"Bauhaus 93";color:#0080C0'>Pedro Doria
Meunier</span></font></u><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>(351) 91 302 49 72 - (351) 96 247 99 12</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>MSN - <a href="mailto:pdoriam@hotmail.com">pdoriam@hotmail.com</a></span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>ICQ - 308-182-126<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Skype: pdoriam</span></font><font
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
postgis-users-bounces@postgis.refractions.net
[mailto:postgis-users-bounces@postgis.refractions.net] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Curtis W. Ruck<br>
<b><span style='font-weight:bold'>Sent:</span></b> segunda-feira, 27 de
Novembro de 2006 13:48<br>
<b><span style='font-weight:bold'>To:</span></b> postgis-users@postgis.refractions.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> [postgis-users] MakeLine
question</span></font><span lang=EN-US><o:p></o:p></span></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have a table with gps tracks stored as points, each point
being one data record for every second.<br>
<br>
I am trying to write a view which generates a polyline for each track. I
know I need to "select MakeLine(the_geom) from track_log" but the
postgis documentation suggests "You might want to use a subselect to order
points before feeding them to this aggregate."<br>
<br>
Does anyone have an example of how to do this, the postgres documentation
doesn't show an example of using a subquery in the SELECT list portion of the
query.<br>
<br>
Curtis<o:p></o:p></span></font></p>
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