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<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>I recall
asking this question before (with tongue in cheek).</FONT></SPAN></DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>Point -->
Sphere</FONT></SPAN></DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>Line -->
Sausage</FONT></SPAN></DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>Polygon
--> Extrusion</FONT></SPAN></DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>I imagine if
you were to look at this practically, each point would be buffered to a sphere
for a given geometry and then tangent planes would be added. The inner facing
surfaces of the spheroids would then be removed.</FONT></SPAN></DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=110034116-14082008><FONT face=Arial color=#0000ff>I think this
is a function of a rendering engine, not of a spatial
database.</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
postgis-users-bounces@postgis.refractions.net
[mailto:postgis-users-bounces@postgis.refractions.net] <B>On Behalf Of
</B>eehab hamzeh<BR><B>Sent:</B> Thursday, August 14, 2008 8:58
AM<BR><B>To:</B> postgis-users@postgis.refractions.net<BR><B>Subject:</B>
[postgis-users] 3d buffering<BR><BR></FONT></DIV>
<DIV style="TEXT-ALIGN: left">Hi, <BR><BR>Is it possible to do 3d buffer for
point or polygon.<BR><BR>thanks<BR></DIV><BR><BR>
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