<div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br>
Taking the third element of each line (that is '0.00087415387662070204' for the first line) as what I think as 'road length',<br>
I got total value of 0.0447577289587.<br>
<br>
If '0.0447577289587' the total length of route, what is it's 'Unit of measure' ? </blockquote><div><br></div><div>The unit is the unit of your projection. It's probably degree in your case.</div><div>
<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">How to got value in 'Kilometers/meters' ?<br></blockquote><div><br></div><div>You can transform your projection for example to some meter projection like "World Mercator" (ie. EPSG:3785). </div>
<div>Then length(geometry) will be in meter.</div><div><br></div><div>Like "SELECT length(ST_transform(<geometry column>,3785)) AS meter FROM <table>".</div><div><br></div><div>Daniel</div><div><br>
</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Note : When I try to count the route using same start Lat/Lon and end lat/lon, google map said it was about 2.1 km<br>
<br>
Sincerely<br>
-bino-<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse">Georepublic UG & Georepublic Japan<br>eMail: <a href="mailto:daniel.kastl@georepublic.de" style="color:rgb(66,99,171)" target="_blank">daniel.kastl@georepublic.de</a><br>
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