<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://wiki.osgeo.org/w/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Wiki-Brainey</id>
	<title>OSGeo - User contributions [en]</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.osgeo.org/w/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Wiki-Brainey"/>
	<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/wiki/Special:Contributions/Wiki-Brainey"/>
	<updated>2026-04-12T15:39:20Z</updated>
	<subtitle>User contributions</subtitle>
	<generator>MediaWiki 1.35.9</generator>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=OSGeo_California_Chapter_Spring_2013_Hackathon&amp;diff=68451</id>
		<title>OSGeo California Chapter Spring 2013 Hackathon</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=OSGeo_California_Chapter_Spring_2013_Hackathon&amp;diff=68451"/>
		<updated>2013-01-19T23:42:36Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: Added category stuff for navigation.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Event Details== &lt;br /&gt;
*Location: http://www.hackerdojo.com/&lt;br /&gt;
*Date: Saturday, January 19, 2013&lt;br /&gt;
*Start Time: 1PM Pacific Time&lt;br /&gt;
*End Time: 7Pm Pacific Time&lt;br /&gt;
&lt;br /&gt;
==People Attending:==&lt;br /&gt;
*Frank Warmerdam&lt;br /&gt;
*Ragi Burhum&lt;br /&gt;
*Landon Blake&lt;br /&gt;
* [[User:Brainey|Bill Rainey]]&lt;br /&gt;
&lt;br /&gt;
==Activities==&lt;br /&gt;
&lt;br /&gt;
===SlitherGrid Hacking===&lt;br /&gt;
&lt;br /&gt;
'''Project Description:'''&lt;br /&gt;
&lt;br /&gt;
http://redefinedhorizonsblog.com/2013/01/15/the-surveyos-projects-slithergrid-toolkit/&lt;br /&gt;
&lt;br /&gt;
'''Task Suggestions'''&lt;br /&gt;
* Implement basic raster processes by creating implementations of the GridWorker classes.&lt;br /&gt;
** Simplify raster.&lt;br /&gt;
** Classify raster.&lt;br /&gt;
** Fill null cells.&lt;br /&gt;
** Create polygons from classified raster cells.&lt;br /&gt;
** Create ridges and valleys from elevation raster.&lt;br /&gt;
** Classify slopes from elevation raster.&lt;br /&gt;
** Classify aspect from elevation raster.&lt;br /&gt;
** Create elevation raster from LIDAR data.&lt;br /&gt;
** Create elevation variability raster.&lt;br /&gt;
** Create raster from polygon coverage.&lt;br /&gt;
* Implement basic IO support for common vector and raster formats.&lt;br /&gt;
** Raster data as ASCII text file (http://paulbourke.net/dataformats/ppm/).&lt;br /&gt;
** Raster data as CSV file.&lt;br /&gt;
** Raster data as ESRI Grid (http://en.wikipedia.org/wiki/Esri_grid).&lt;br /&gt;
** Surface as TIN file.&lt;br /&gt;
** Surface as elevation grid.&lt;br /&gt;
** Simple feature geometry as WKT.&lt;br /&gt;
** Simple feature geometrys from Shapefiles.&lt;br /&gt;
*Implement basic grid painting.&lt;br /&gt;
** Paint grid as PNG image file.&lt;br /&gt;
** Paint grid as SVG.&lt;br /&gt;
&lt;br /&gt;
===Inkscape Cartography and Drafting Tools===&lt;br /&gt;
Inkscape is a great program for creating cartographic maps. It would be even better for this task with some simple CAD and cartography tools. Inkscape can be extended through Python extensions. (http://wiki.inkscape.org/wiki/index.php/Extensions)&lt;br /&gt;
&lt;br /&gt;
'''Task Suggestions''' &lt;br /&gt;
* Enter circle by Coordinate.&lt;br /&gt;
* Edit node coordinates in dialog box.&lt;br /&gt;
* Enter straight line by coordinates.&lt;br /&gt;
* Enter arc by coordinates and angle.&lt;br /&gt;
* Make line parallel to another line.&lt;br /&gt;
* Make text parallel to another line.&lt;br /&gt;
* Make line perpendicular to another line.&lt;br /&gt;
* Add nodes at distance along path.&lt;br /&gt;
* Match label parts to path segments.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
===Balloon Mapping===&lt;br /&gt;
&lt;br /&gt;
Last Saturday I went balloon mapping with some people from [http://publiclaboratory.org/home Public Laboratory] and we ended up with a whole bunch of [https://t.co/Dh1VpAfw balloon imagery] that needs to be stitched and geo-referenced. I was surprised to see that although there are [http://graphics.cs.cmu.edu/courses/15-463/2004_fall/www/Papers/MSR-TR-2004-92-Sep27.pdf several algorithms] that could help with this, the popular tools like [http://mapknitter.org/ Mapknitter] don't have something to do things in batch, so the process can become manually intensive. I'd love to see if we can use the new [http://trac.osgeo.org/gdal/wiki/Correlator GDAL Surf Correlator] or the classes in the [http://www.orfeo-toolbox.org/SoftwareGuide/SoftwareGuidech9.html Orfeo Toolbox] which seem to do have the fundamental algorithms that we would need. IMHO, building a GUI would not be out of the question (web or native or whatever).&lt;br /&gt;
&lt;br /&gt;
[[Category: Local Chapters]]&lt;br /&gt;
[[Category: California]]&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=OSGeo_California_Chapter_Spring_2013_Hackathon&amp;diff=68443</id>
		<title>OSGeo California Chapter Spring 2013 Hackathon</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=OSGeo_California_Chapter_Spring_2013_Hackathon&amp;diff=68443"/>
		<updated>2013-01-19T04:18:19Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Event Details== &lt;br /&gt;
*Location: http://www.hackerdojo.com/&lt;br /&gt;
*Date: Saturday, January 19, 2013&lt;br /&gt;
*Start Time: 1PM Pacific Time&lt;br /&gt;
*End Time: 7Pm Pacific Time&lt;br /&gt;
&lt;br /&gt;
==People Attending:==&lt;br /&gt;
*Frank Warmerdam&lt;br /&gt;
*Ragi Burhum&lt;br /&gt;
*Landon Blake&lt;br /&gt;
* [[User:Brainey|Bill Rainey]]&lt;br /&gt;
&lt;br /&gt;
==Activities==&lt;br /&gt;
&lt;br /&gt;
===SlitherGrid Hacking===&lt;br /&gt;
&lt;br /&gt;
'''Project Description:'''&lt;br /&gt;
&lt;br /&gt;
http://redefinedhorizonsblog.com/2013/01/15/the-surveyos-projects-slithergrid-toolkit/&lt;br /&gt;
&lt;br /&gt;
'''Task Suggestions'''&lt;br /&gt;
* Implement basic raster processes by creating implementations of the GridWorker classes.&lt;br /&gt;
** Simplify raster.&lt;br /&gt;
** Classify raster.&lt;br /&gt;
** Fill null cells.&lt;br /&gt;
** Create polygons from classified raster cells.&lt;br /&gt;
** Create ridges and valleys from elevation raster.&lt;br /&gt;
** Classify slopes from elevation raster.&lt;br /&gt;
** Classify aspect from elevation raster.&lt;br /&gt;
** Create elevation raster from LIDAR data.&lt;br /&gt;
** Create elevation variability raster.&lt;br /&gt;
** Create raster from polygon coverage.&lt;br /&gt;
* Implement basic IO support for common vector and raster formats.&lt;br /&gt;
** Raster data as ASCII text file (http://paulbourke.net/dataformats/ppm/).&lt;br /&gt;
** Raster data as CSV file.&lt;br /&gt;
** Raster data as ESRI Grid (http://en.wikipedia.org/wiki/Esri_grid).&lt;br /&gt;
** Surface as TIN file.&lt;br /&gt;
** Surface as elevation grid.&lt;br /&gt;
** Simple feature geometry as WKT.&lt;br /&gt;
** Simple feature geometrys from Shapefiles.&lt;br /&gt;
*Implement basic grid painting.&lt;br /&gt;
** Paint grid as PNG image file.&lt;br /&gt;
** Paint grid as SVG.&lt;br /&gt;
&lt;br /&gt;
===Inkscape Cartography and Drafting Tools===&lt;br /&gt;
Inkscape is a great program for creating cartographic maps. It would be even better for this task with some simple CAD and cartography tools. Inkscape can be extended through Python extensions. (http://wiki.inkscape.org/wiki/index.php/Extensions)&lt;br /&gt;
&lt;br /&gt;
'''Task Suggestions''' &lt;br /&gt;
* Enter circle by Coordinate.&lt;br /&gt;
* Edit node coordinates in dialog box.&lt;br /&gt;
* Enter straight line by coordinates.&lt;br /&gt;
* Enter arc by coordinates and angle.&lt;br /&gt;
* Make line parallel to another line.&lt;br /&gt;
* Make text parallel to another line.&lt;br /&gt;
* Make line perpendicular to another line.&lt;br /&gt;
* Add nodes at distance along path.&lt;br /&gt;
* Match label parts to path segments.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
===Balloon Mapping===&lt;br /&gt;
&lt;br /&gt;
Last Saturday I went balloon mapping with some people from [http://publiclaboratory.org/home Public Laboratory] and we ended up with a whole bunch of [https://t.co/Dh1VpAfw balloon imagery] that needs to be stitched and geo-referenced. I was surprised to see that although there are [http://graphics.cs.cmu.edu/courses/15-463/2004_fall/www/Papers/MSR-TR-2004-92-Sep27.pdf several algorithms] that could help with this, the popular tools like [http://mapknitter.org/ Mapknitter] don't have something to do things in batch, so the process can become manually intensive. I'd love to see if we can use the new [http://trac.osgeo.org/gdal/wiki/Correlator GDAL Surf Correlator] or the classes in the [http://www.orfeo-toolbox.org/SoftwareGuide/SoftwareGuidech9.html Orfeo Toolbox] which seem to do have the fundamental algorithms that we would need. IMHO, building a GUI would not be out of the question (web or native or whatever).&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=User:Brainey&amp;diff=68442</id>
		<title>User:Brainey</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=User:Brainey&amp;diff=68442"/>
		<updated>2013-01-19T04:17:04Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= [[User:brainey|Bill Rainey]] =&lt;br /&gt;
[[File:Bill-Rainey.jpg|256px|Bill Rainey]]&lt;br /&gt;
&lt;br /&gt;
* Sponsoring / participating in [[OSGeo_California_Chapter_Spring_2013_Hackathon]]&lt;br /&gt;
* Joined as a member January 2013&lt;br /&gt;
* Attended the [[California_Chapter_2012_Annual_Meeting]] October 2012&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=User:Brainey&amp;diff=68441</id>
		<title>User:Brainey</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=User:Brainey&amp;diff=68441"/>
		<updated>2013-01-19T04:16:14Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: Create home page for me, Bill Rainey.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[File:Bill-Rainey.jpg|256px|Bill Rainey]]&lt;br /&gt;
&lt;br /&gt;
* Sponsoring / participating in [[OSGeo_California_Chapter_Spring_2013_Hackathon]]&lt;br /&gt;
* Joined as a member January 2013&lt;br /&gt;
* Attended the [[California_Chapter_2012_Annual_Meeting]] October 2012&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=File:Bill-Rainey.jpg&amp;diff=68440</id>
		<title>File:Bill-Rainey.jpg</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=File:Bill-Rainey.jpg&amp;diff=68440"/>
		<updated>2013-01-19T04:07:39Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: Profile photo of Bill Rainey&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Profile photo of Bill Rainey&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
	<entry>
		<id>https://wiki.osgeo.org/w/index.php?title=California_Chapter_Membership_Page&amp;diff=68439</id>
		<title>California Chapter Membership Page</title>
		<link rel="alternate" type="text/html" href="https://wiki.osgeo.org/w/index.php?title=California_Chapter_Membership_Page&amp;diff=68439"/>
		<updated>2013-01-19T04:06:23Z</updated>

		<summary type="html">&lt;p&gt;Wiki-Brainey: Added myself (Bill Rainey) to membership list.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Members List ==&lt;br /&gt;
Name(IRC/Chat Handle) - Short Description &lt;br /&gt;
&lt;br /&gt;
*[[User:Cwhitney|Chris Whitney (Cwhitney)]] - UC San Diego / NASA ISS EarthKAM &lt;br /&gt;
*[[User:SunburnedSurveyor|Landon Blake(Sunburned Surveyor)]] &lt;br /&gt;
*[[User:Hollander|Allan Hollander ]] &lt;br /&gt;
*[[User:Cgs bob|Bob Moskovitz (cgs_bob)]] &lt;br /&gt;
*[[User:Wildintellect|Alex Mandel (Wildintellect)]] - UC Davis &lt;br /&gt;
*[[User:Dmbianco|David Bianco (talldave)]] - US Army Corps of Engineers, San Francisco &lt;br /&gt;
*[[User:Mdhancher|Matt Hancher]] - Google Earth Engine - interested in Bay Area local activities &lt;br /&gt;
*[[User:Jlivni|Josh Livni (jlivni)]] Google Developer Relations (San Francisco) &lt;br /&gt;
*[[User:Bwoodall|Bill Woodall(bwoodall)]] San Diego &lt;br /&gt;
*[[User:StaceyEllis|Stacey Ellis]] - UC Davis &lt;br /&gt;
*[[User:MicheleTobias|Michele Tobias]] - UC Davis &lt;br /&gt;
*[[User:Mtreichler|Mike Treichler]] - UC Davis &lt;br /&gt;
*[[User:TaraAthan|Tara Athan]] &lt;br /&gt;
*[[User:Glennon|Alan Glennon]] - spatial@ucsb &lt;br /&gt;
*[[User:Darkblue b|Brian Hamlin (darkblue_b)]] - Berkeley &lt;br /&gt;
*[[User:J03lar50n|Joe Larson (j03lar50n)]] | CAL FIRE / San Luis Obispo County Fire | Cal Poly - SLO Alumni &lt;br /&gt;
*[[User:TheSteve0|Steve Citron (TheSteve0)]] - Pousty - ICF/Jones&amp;amp;amp;Stokes, San Jose &lt;br /&gt;
*[[User:Osospdb|Paul Bartsch (osospdb)]] | UC Santa Barbara | Cal Poly - SLO Alumni &lt;br /&gt;
*[[User:Rburhum|Ragi Yaser Burhum(rburhum)]] | Self &lt;br /&gt;
*[[User:DylanBeaudette|Dylan Beaudette]] | CA Soil Resource Lab - UC Davis &lt;br /&gt;
*[[User:MPfister|Marc Pfister (drwelby)]] | ENPLAN (Redding) &lt;br /&gt;
*[[User:Lbali|Lokesh Bali]] | Richmond Police &lt;br /&gt;
*[[User:PacificGeodata|Matt Lamborn]] | Pacific Geodata - Napa, CA&lt;br /&gt;
* Frank Warmerdam | Google&lt;br /&gt;
*[[Jeff Hobbs]] | San Jose Water Company - San Jose, CA&lt;br /&gt;
* Bborie Park | Center for Vectorborne Diseases, UC Davis&lt;br /&gt;
* Brian Galey | Geospatial Innovation Facility, UC Berkeley&lt;br /&gt;
* [[User:brylie|Brylie Oxley]] | (brylie on freenode) - Nevada City, CA&lt;br /&gt;
* [[User:brainey|Bill Rainey]] - Santa Clara, CA&lt;br /&gt;
&lt;br /&gt;
== Navigation ==&lt;br /&gt;
&lt;br /&gt;
[http://wiki.osgeo.org/wiki/California California Chapter Wiki Home Page]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category: Local Chapters]]&lt;br /&gt;
&lt;br /&gt;
[[Category: California]]&lt;/div&gt;</summary>
		<author><name>Wiki-Brainey</name></author>
	</entry>
</feed>