<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=us-ascii" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 9.00.8112.16443"></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=445431003-04052012><FONT color=#0000ff
size=2 face=Arial>Sam,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=445431003-04052012><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=445431003-04052012><FONT color=#0000ff
size=2 face=Arial>I won't be able to make it to Paris eitehr :(. I am on
the east coast :).</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=445431003-04052012><FONT color=#0000ff
size=2 face=Arial>I think just ideas will come out of Paris Sprint.
Nothing will be set in stone until discussed and voted and even then, I think it
would take time to integrate third party options if that is decided. So I
expect this to be one of many discussions.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=445431003-04052012></SPAN><SPAN
class=445431003-04052012></SPAN><FONT face=Arial><FONT color=#0000ff><FONT
size=2>I<SPAN class=445431003-04052012>f you are on the East and interested in
discussions. We are having a Boston OSGEO Code Sprint. A ways away
where there will be a large PostGIS developer
crowd.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012><A
href="http://wiki.osgeo.org/wiki/Boston_Code_Sprint_2013#Participation">http://wiki.osgeo.org/wiki/Boston_Code_Sprint_2013#Participation</A></SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012>Feel free to sign up of you are planning to come and do
some serious PostGIS development.</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012>We haven't set specific dates yet but we are looking at
Late January - March. Most likely February sometime
2013.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012>As far as tickets go, the best way to get started is to
attach patches to those tickets and we'll try to integrate them in. If you
start submitting too many quality patches, we may get tired of patching in and
ask you to proverbially sign some papers and become an official member of our
team.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012>Thanks,</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012>Regina</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012><A
href="http://www.postgis.us">http://www.postgis.us</A></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=445431003-04052012></SPAN></FONT></FONT></FONT> </DIV>
<DIV><BR></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #0000ff 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B>
postgis-devel-bounces@postgis.refractions.net
[mailto:postgis-devel-bounces@postgis.refractions.net] <B>On Behalf Of </B>Sam
Hariton<BR><B>Sent:</B> Thursday, May 03, 2012 11:32 AM<BR><B>To:</B> PostGIS
Development Discussion<BR><B>Subject:</B> Re: [postgis-devel] ST_Buffer in 3D
supporting Z<BR></FONT><BR></DIV>
<DIV></DIV>Regina,
<DIV><BR></DIV>
<DIV>Thanks. Unfortunately, I'm not <SPAN
style="BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: arial,sans-serif; COLOR: rgb(34,34,34); FONT-SIZE: 13px">going
to make it Paris but next time your on the east coast I'll try to stop by
(apparently I completely missed the event in DC last month).</SPAN></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"><BR></FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif">Is the Paris Sprint likely
to result in a decision about GEOS/Boost/CGAL/PostGIS core/etc.? Or is
it a longer term discussion than that?</FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"><BR></FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"><BR></FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif">In the meantime, looking
through the ticket list, there's a couple tickets (#430 and #428) that look
interesting and I'd like to make a stab at. What's the
proper etiquette for doing so?</FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"><BR></FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif">Thanks</FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"><BR></FONT></DIV>
<DIV><FONT color=#222222 face="arial, sans-serif"> - Sam</FONT></DIV>
<DIV><BR>
<DIV class=gmail_quote>On Wed, May 2, 2012 at 4:22 AM, Paragon Corporation
<SPAN dir=ltr><<A href="mailto:lr@pcorp.us"
target=_blank>lr@pcorp.us</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote><U></U>
<DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial>Sam,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial>Sam,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>Not to my
knowledge. There are a couple of hurdles we need to jump before that
step.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>The big
one:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>GEOS is
predominantly 2-D engine: PostGIS buffer and many other functions
piggy -back on that.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>so the big
question is whether to expand GEOS to handle new 3d types thus deviating
more from its JTS roots or use another engine like Boost or
CGAL.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>The other
option is just to build into PostGIS core, but not sure how much effort is
involved there.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>Olivier is
working on much of the 3D stuff and many of the PostGIS core
dev are having a code sprint in Paris.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>I think there
is still space left if you want to chat up with them and you can make
the trip.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial><A
href="http://trac.osgeo.org/postgis/wiki/DevWikiEvent"
target=_blank>http://trac.osgeo.org/postgis/wiki/DevWikiEvent</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial>Hope that
helps,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial>Regina</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff face=Arial><A
href="http://www.postgis.us"
target=_blank>http://www.postgis.us</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN><FONT color=#0000ff
face=Arial></FONT></SPAN> </DIV><BR>
<BLOCKQUOTE
style="BORDER-LEFT: #0000ff 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV dir=ltr lang=en-us align=left>
<HR>
<FONT face=Tahoma><B>From:</B> <A
href="mailto:postgis-devel-bounces@postgis.refractions.net"
target=_blank>postgis-devel-bounces@postgis.refractions.net</A> [mailto:<A
href="mailto:postgis-devel-bounces@postgis.refractions.net"
target=_blank>postgis-devel-bounces@postgis.refractions.net</A>] <B>On
Behalf Of </B>Sam Hariton<BR><B>Sent:</B> Tuesday, May 01, 2012 4:06
PM<BR><B>To:</B> <A href="mailto:postgis-devel@postgis.refractions.net"
target=_blank>postgis-devel@postgis.refractions.net</A><BR><B>Subject:</B>
[postgis-devel] ST_Buffer in 3D supporting Z<BR></FONT><BR></DIV>
<DIV>
<DIV class=h5>
<DIV></DIV>
<DIV class=gmail_quote>Is anyone looking at adding the ability for
st_buffer to keep Z coordinates as well for 3-dimensional spaces? If
so, I'd like to help.<BR><BR>The Postgis 2.0 docs state: <SPAN
style="BACKGROUND-COLOR: rgb(228,247,221); FONT-FAMILY: 'Lucida Grande',Verdana,Geneva,Arial,Helvetica,sans-serif; COLOR: rgb(46,46,46); FONT-SIZE: 13px">This
function ignores the third dimension (z) and will always give a 2-d buffer
even when presented with a 3d-geometry.</SPAN><BR><BR>Right
now <BR><BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote><SPAN>
<DIV>select st_astext(st_buffer(geomfromEWKT('POINT(0 0
0)'),1));</DIV></SPAN></BLOCKQUOTE><BR>Generates a flat Polygon/Circle of
radius 1 (completely dropping the z dimension):<BR><BR> POLYGON((1
0,0.980785280403231 -0.195090322016128,0.923879532511287
-0.382683432365089,0.831469612302546 -0.555570233019602,0.707106781186548
-0.707106781186547,0.555570233019603 -0.831469612302545,0.382683432365091
-0.923879532511286,0.19509032201613 -0.98078528040323,1.61554255216634e-15
-1,-0.195090322016126 -0.980785280403231,-0.382683432365088
-0.923879532511288,-0.555570233019601
-0.831469612302546,-0.707106781186546
-0.707106781186549,-0.831469612302544
-0.555570233019604,-0.923879532511286 -0.382683432365092,-0.98078528040323
-0.195090322016131,-1 -3.23108510433268e-15,-0.980785280403231
0.195090322016125,-0.923879532511288<BR> 0.382683432365086,-0.831469612302547
0.555570233019599,-0.70710678118655 0.707106781186545,-0.555570233019606
0.831469612302543,-0.382683432365094 0.923879532511285,-0.195090322016132
0.98078528040323,-3.73640463187386e-15 1,0.195090322016125
0.980785280403231,0.382683432365087 0.923879532511288,0.5555702330196
0.831469612302547,0.707106781186545 0.70710678118655,0.831469612302544
0.555570233019604,0.923879532511286 0.382683432365092,0.98078528040323
0.19509032201613,1 0))<BR><BR>Whereas, if it had z support it should
actually generate a Polyhedral Surface/Sphere of radius 1 centered on
(0 0 0)<FONT color=#888888><BR></FONT></DIV>
<DIV class=gmail_quote><BR></DIV>
<DIV class=gmail_quote> - Sam</DIV>
<DIV
class=gmail_quote><BR></DIV></DIV></DIV></BLOCKQUOTE></DIV><BR>_______________________________________________<BR>postgis-devel
mailing list<BR><A
href="mailto:postgis-devel@postgis.refractions.net">postgis-devel@postgis.refractions.net</A><BR><A
href="http://postgis.refractions.net/mailman/listinfo/postgis-devel"
target=_blank>http://postgis.refractions.net/mailman/listinfo/postgis-devel</A><BR><BR></BLOCKQUOTE></DIV><BR></DIV></BLOCKQUOTE></BODY></HTML>