<div dir="ltr">I would be very interested to know any attempt to visualize 3D point cloud from data base !<br><div>We did the same but our solution is far from perfect.</div><div>Bob, is you rporject public/open source, have you any paper/doc about it ?</div>
<div><br></div><div>Cheers,</div><div><br></div><div>Rémi-C</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/12/11 Basques, Bob (CI-StPaul) <span dir="ltr"><<a href="mailto:bob.basques@ci.stpaul.mn.us" target="_blank">bob.basques@ci.stpaul.mn.us</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple">
<div>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS"">Hmm,
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS"">I’m working with the Minneapolis International Airport (MSP) on a project, any chance that data is open/accessible enough to play with? This could tie directly into a project I’m
already working on.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS"">Thanks<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS"">Bobb<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Comic Sans MS""><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a>]
<b>On Behalf Of </b>Gerry Creager - NOAA Affiliate<br>
<b>Sent:</b> Tuesday, December 10, 2013 2:14 PM</span></p><div><div class="h5"><br>
<b>To:</b> PostGIS Users Discussion<br>
<b>Subject:</b> Re: [postgis-users] Old question resurfacing<u></u><u></u></div></div><p></p><div><div class="h5">
<p class="MsoNormal" style="margin-left:.5in"><u></u> <u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in">Bob, all:<u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">I agree. I'll have to spend some time with pointcloud but it DOES look very promising. <u></u><u></u></p>
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<div>
<p class="MsoNormal" style="margin-left:.5in"><u></u> <u></u></p>
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<div>
<p class="MsoNormal" style="margin-left:.5in">Another application? Lidar. Pointed at the sky, not at the ground (we use 'em to determine cloud layers [ceiling] and sky cover at airports for aviation data...).<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:.5in"><u></u> <u></u></p>
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<div>
<p class="MsoNormal" style="margin-left:.5in">Thanks, all!<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:.5in">gerry<u></u><u></u></p>
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<u></u> <u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in">On Tue, Dec 10, 2013 at 1:49 PM, Basques, Bob (CI-StPaul) <<a href="mailto:bob.basques@ci.stpaul.mn.us" target="_blank">bob.basques@ci.stpaul.mn.us</a>> wrote:<u></u><u></u></p>
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<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Gerry,</span><u></u><u></u></p>
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<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Remi’s idea about using a point cloud may be spot on for your use. It allows you to set a point cloud down to a revolution if need be, which seems like what you are looking for.. If the data becomes
too massive for insertion into DB at real-time speeds, then you could also separate this revolution into separate DB’s as well, you could separate a whole number of ways, by elevation, or quadrant, or . . .</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">I’m very interested in visualization possibilities with something like this being available in a database. We’re doing some similar db 3d visualization stuff on some rather dense point clouds. Your
data once available could use the same visualizer.</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Bobb</span><u></u><u></u></p>
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<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
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<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a>]
<b>On Behalf Of </b>Gerry Creager - NOAA Affiliate<br>
<b>Sent:</b> Tuesday, December 10, 2013 1:41 PM<br>
<b>To:</b> PostGIS Users Discussion<br>
<b>Subject:</b> Re: [postgis-users] Old question resurfacing</span><u></u><u></u></p>
<div>
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<p class="MsoNormal" style="margin-left:1.0in">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
Bob<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
<u></u><u></u></p>
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At least preliminarily, I can post-process, so speed of db adds isn't too troubling. Maintaining accurate representation of the bin-volume data is, however, important.<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
Typical rotation is 1-3 RPM, and a complete volume scan takes ~11 min in clear air (where you best see biologicals if so inclined) or ~5 min in one of the storm data collection modes. These are for common WSR88D, stationary radars. SMARTR's and others we have
here that are mobile present a whole host of other options/data eval and speed problems.<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
<u></u><u></u></p>
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Current radar data are nominally considered to have a horizontal resolution of ~250 m, ignoring distortion or keyholing due to range.Typically 16 elevations are scanned, once or or twice in storm mode and a few less elevations in clear air mode.<u></u><u></u></p>
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<u></u><u></u></p>
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Now, the interesting thing that's on the horizon is Phased Array Radar. When that happens, more data, more resolution, and faster updates. <u></u><u></u></p>
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<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
gerry<u></u><u></u></p>
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<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
On Tue, Dec 10, 2013 at 11:05 AM, Basques, Bob (CI-StPaul) <<a href="mailto:bob.basques@ci.stpaul.mn.us" target="_blank">bob.basques@ci.stpaul.mn.us</a>> wrote:<u></u><u></u></p>
<div>
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<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Gerry,</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Seems like the biggest hangup would be in adding the data to the DB fast enough. How many points, per revolution, and what is the frequency of a revolution (stationary Radar, correct, although as I
think about it, it could be mobile if needed, just need to add in the radar location to each record)?</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS"">Bobb</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.0in">
<span style="font-size:8.0pt;font-family:"Comic Sans MS""> </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:1.5in">
<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:postgis-users-bounces@lists.osgeo.org" target="_blank">postgis-users-bounces@lists.osgeo.org</a>]
<b>On Behalf Of </b>Gerry Creager - NOAA Affiliate<br>
<b>Sent:</b> Tuesday, December 10, 2013 10:52 AM<br>
<b>To:</b> PostGIS Users Discussion<br>
<b>Subject:</b> [postgis-users] Old question resurfacing</span><u></u><u></u></p>
<div>
<div>
<p class="MsoNormal" style="margin-left:1.5in">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
I asked this years ago, and I think Paul was less than pleased with me (:-), but:<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
Has anyone, in the ensuing years looked at encoding radar data into a postGIS database? We've a little idea that might benefit one project, and getting the radar data into a good geospatial format would be beneficial.The data, of coure, would start out as radial-distance
and intensity from the radar site, although we could preprocess it by gridding.<br clear="all">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
Thanks, Gerry<u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-left:1.5in">
-- <u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:1.5in">
Gerry Creager<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
NSSL/CIMMS<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.5in">
<a href="tel:405.325.6371" target="_blank">405.325.6371</a><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.5in">
++++++++++++++++++++++<u></u><u></u></p>
</div>
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<p class="MsoNormal" style="margin-left:1.5in">
“Big whorls have little whorls,<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.5in">
That feed on their velocity; <u></u><u></u></p>
</div>
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<p class="MsoNormal" style="margin-left:1.5in">
And little whorls have lesser whorls, <u></u><u></u></p>
</div>
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<p class="MsoNormal" style="margin-left:1.5in">
And so on to viscosity.” <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.5in">
Lewis Fry Richardson (1881-1953)<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal" style="margin-left:1.0in">
<br>
_______________________________________________<br>
postgis-users mailing list<br>
<a href="mailto:postgis-users@lists.osgeo.org" target="_blank">postgis-users@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users" target="_blank">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a><u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-left:1.0in">
<br>
<br clear="all">
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:1.0in">
<u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-left:1.0in">
-- <u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
Gerry Creager<u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
NSSL/CIMMS<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
<a href="tel:405.325.6371" target="_blank">405.325.6371</a><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
++++++++++++++++++++++<u></u><u></u></p>
</div>
<div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
“Big whorls have little whorls,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
That feed on their velocity; <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
And little whorls have lesser whorls, <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
And so on to viscosity.” <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:1.0in">
Lewis Fry Richardson (1881-1953)<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal" style="margin-left:.5in"><br>
_______________________________________________<br>
postgis-users mailing list<br>
<a href="mailto:postgis-users@lists.osgeo.org" target="_blank">postgis-users@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users" target="_blank">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a><u></u><u></u></p>
</div>
<p class="MsoNormal" style="margin-left:.5in"><br>
<br clear="all">
<u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in"><u></u> <u></u></p>
</div>
<p class="MsoNormal" style="margin-left:.5in">-- <u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in">Gerry Creager<u></u><u></u></p>
<div>
<p class="MsoNormal" style="margin-left:.5in">NSSL/CIMMS<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">405.325.6371<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">++++++++++++++++++++++<u></u><u></u></p>
</div>
<div>
<div>
<p class="MsoNormal" style="margin-left:.5in">“Big whorls have little whorls,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">That feed on their velocity; <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">And little whorls have lesser whorls, <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">And so on to viscosity.” <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in">Lewis Fry Richardson (1881-1953)<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div></div></div>
</div>
<br>_______________________________________________<br>
postgis-users mailing list<br>
<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users" target="_blank">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a><br></blockquote></div><br></div>