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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am using postgis 1.5 and use the st_buffer function with
my spatial queries. I have set the srid to 3308 for my spatial data which the
measurement unit is meter, but when I use the st_buffer function and set the
radius of buffer in meter. The spatial queries return far more rows than what I
expected. The measurement unit of radius of buffer in st_buffer function does
not seem to me to be in meter. Instead of using 10 for a radius of 10 meters, I
have to use a value of 10*1.7453292519943283E-5 instead. What could be the
problem with this st_buffer function? I do not mind to use this value but it is
not what postgis documented. It would be appreciated if you could help on this.
<o:p></o:p></span></font></p>
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font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards,<o:p></o:p></span></font></p>
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font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=2 color=gray face=Arial><span
lang=EN-US style='font-size:10.0pt;font-family:Arial;color:gray'>Gorton ZHAO</span></font></b></strong><font
size=2 color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:gray'><br>
Traffic Management</span></font><o:p></o:p></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2
color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:
Arial;color:gray;font-weight:bold'>T </span></font></b><font size=2 color=gray
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:gray'>02 9319 9431 <b><span style='font-weight:bold'>F
</span></b>02 9319 2015</span></font><o:p></o:p></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:
Arial;color:gray'><a href="http://www.scats.com.au"><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>http://www.scats.com.au</span></font></a></span></font><o:p></o:p></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:
Arial;color:gray'><a href="http://www.rmservices.nsw.gov.au"><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>http://www.rmservices.nsw.gov.au</span></font></a><o:p></o:p></span></font></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:
Arial;color:gray'><o:p> </o:p></span></font></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:
Arial;color:gray'>Roads and Maritime Services<o:p></o:p></span></font></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><st1:Street w:st="on"><st1:address
w:st="on"><strong><b><font size=2 color=gray face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:gray'>2 Locomotive Street</span></font></b></strong></st1:address></st1:Street><strong><b><font
size=2 color=gray face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:gray'>, Eveleigh NSW 2015</span></font></b></strong><o:p></o:p></p>
<p class=section1 style='margin:0cm;margin-bottom:.0001pt'><font size=3
color=navy face="Times New Roman"><span lang=EN-US style='font-size:12.0pt;
color:navy'><o:p> </o:p></span></font></p>
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