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=== Stuff to look at in more depth === | === Stuff to look at in more depth === | ||
[http://www.refractions.net Refractions] developed PostGIS <br> | [http://www.refractions.net Refractions] developed [[PostGIS]] <br> | ||
[[Manifold]] GIS software <br> | [[Manifold]] GIS software <br> | ||
[[Remote sensing]] <br> | [[Remote sensing]] <br> | ||
Revision as of 15:11, 27 March 2006
The wildsong.biz domain has been transferred to a new owner;
my old content is now at www.wildsong.biz; please update your bookmarks. Thanks--
Brian Wilson 17:57, 7 January 2006 (PST)
I am using this site to track various interests and projects, but if you want to, you are free to add content and comment on anything you see here. To make comments, use the "Discuss this page" link at the bottom of each page.
--Brian Wilson 18:50, 28 November 2005 (PST)
Maps!
Corvallis area
City of Corvallis Parks
Paul, here are your Corvallis Airport area maps
Coastal Oregon
I've been preparing maps for my personal use on trips to Coastal Oregon. Yet another work in progress. I have 5 maps here so far.
Sonoma county
CDS Wireless Network I plan on putting these static maps into Mapserver any day now...
Projects
Solar CREEK -- "Clean Renewable Energy for Everyone's Kids."
Weather stations -- Gathering some information for CDS on IP-enabled weatherstations. Also thinking about grabbing and displaying METAR data. Also looking at Onset data collectors...
Magnavox GPS reference station (fondly known as MX-9212 or "The Blue Box") Now you can read satellite data from the MX-9212
Web-based map viewers
Feature list for mapserver viewers
Test projects: 1. SWF viewer 2. Orthoviewer
GIS projects, mostly for City of Corvallis
ArcGIS A few ArcObjects notes at the moment.
Geodatabases
MapServer iMap
ArcIMS + ColdFusion
ArcPad including notes on PDAs
Why a duck? I want documentation on every possible available addon and tool for ArcMap right now!! I suppose it is at http://www.esri.com/ knowledge base. I ran across the GPS stuff today in 9.1 ArcInfo. I wonder if it existed for ArcView 8.3? Probably not. They kept all the good stuff for release 9.
Using ArcMap as a front end to ArcIMS and/or Mapserver
ArcMap to ArcIMS: Jeroen Ticheler's script MXDtoAXL downloaded from http://arcscripts.esri.com/ -- this works quite well but breaks if version > 9.0 (There is another MXD converter on arcscripts by Mark Andrews. He provides only a snipped of VB and no instructions. Since we are not ArcObjects geniuses, Kevin and I are sticking to Veroen's program.)
ArcMap to Mapserver Still looking into this. On possibility is avein. See also this page.
Here is the ArcXML Programmer's Reference Guide. To tweak ArcIMS servers and viewers you really need to know ArcXML. It's used for ArcPad configuration too.
Some issues to think about
What are people doing for revision control with spatial data? I know ArcSDE has some form of versioning but have not had time to read up on it yet. ArcSDE costs money, uses expensive RDBMS as a backend, and I don't have access to a copy right now so I am not motivated.
Seems like a vector-based revision control system would not be impossibly difficult to implement. You could keep it in a spatial database and query on changes. "Show me all changes to the parcel database in the last 6 months". Rasters don't really get editted in GIS systems; either you have a new ortho photo or you don't, so storing the entire copy of each raster is not so bad. A query is "Show me the photo for this area for 1996", not "show me what changed between these two photos".
I talked with Toshimi Minoura yesterday and he said that there is a school in Germany that has been working on this problem (esp as it relates to editing and updating databases) for many years.
How can we best apply Flash to online cartography? The apps I have looked at so far use it for the user interface. It's regarded by some as an improvement over Javascript because the two predominant browsers have independently developed versions of Javascript that work differently, whereas Flash plugin comes from one company so it's more consistent across browsers and platforms.
We could also use it directly in the maps. For mapserver, see Flash support in Mapserver
Server side vs client side user interfaces for web mapping It's not really a matter of 'versus' rather than 'where do we draw the line?' Some things HAVE to be on the client. Others can be implemented in either place.
For significant work such as editting and updating we still need a desktop app. Web mapping should be used more for display and simple analysis, with a desktop app communicating with central data stores as the model for editting and advanced spatial analysis.
Fuzzy thoughts -or- Who gets to decide where the shoreline is, and why isn't it fuzzy?
For georeferencing historical maps, can we use a fuzzy confidence overlay to indicate what areas of the map look good spatially and what ones don't?
Fuzzy GIS articles
Integrating exploration dataset in GIS using fuzzy inference modeling
Stuff to look at in more depth
Refractions developed PostGIS
Manifold GIS software
Remote sensing
GRASS Open source GIS software
Elkhorn Slough Wireless Project Spring 2003 CSU Monterey Bay project
Clipping orthophotos Process used in CDS Wireless project
Cartography
To learn more than you could want to know about color and shading on maps, visit these sites.
http://www.reliefshading.com/ has articles by Bill Patterson of the National Park Service on producing 2d and 3D maps using natural colors.
http://shadedrelief.com/ has lots of information on shading techniques and very interesting articles about cartographers.
Geobuzzword Compliance section
ACSM
ASPRS: American Society for Photogrammetry and Remote Sensing
AGU: American Geophysical Union
SAF
Hydrophiles
Oceanography
Geology
Hydrology
Forestry
Biometrics
SCGIS Society for Conservation GIS
SAS
Electronics
File:Bfd background.gif Yellowstone Weatherstation
M-audio Microtrack Digital audio recorder
Wireless
Web site content management
Mediawiki
I am currently using the stable version of Mediawiki which is the software used for the Wikipedia. At home I am running the development version downloaded from CVS.
Reasons I like Mediawiki: It is easy to install. It is easy to customize. It is easy to learn. It is very well supported and has a large user community.
Update. I have been using Mediawiki for over a year now. I have deployed it at work, at home, at my ISP, and for pedalwiki.ihpva.org and solarcreek,org. I like it. I use it for site management, and I document all my work in wikis now. No more lost scraps of paper or random txt files scattered all over creation.
But there are things it does not do well, so I am back looking at Drupal now for ihpva.org main page.
Mediawiki extensions
There are maps in the Wikipedia, so I should really look at the wikimedia extensions for GIS and maps first.
Drupal
For a while I was convinced Drupal was the best CMS so I started writing this Beginner's guide for Drupal. I stopped working on it when I quit using Drupal. (Which was almost immediately...) I am leaving the page here because I might revisit it at any moment.
(and that moment is NOW. Brian Wilson 07:03, 13 March 2006 (PST))
Other
I might revisit Zope and Plone instead. The only reason I am interested in plone right now is because of plonemap. The plonemap server seems to be down right now so I can't even research it. (29-Nov-2005) Later for this...
XML and the weather
The National Weather Service has a (relatively) new service providing forecasts and updates in XML and RSS formats. I have been running a screen scraper that I whipped out in perl to insert the weather conditions into my personal web page. Converting this to use the XML feed would be a good first XML project. Weather reports via XML
Programming for GIS
What classes are there out there? What do I want to learn? Pre-requisite: any computer programming class, any GIS class
A bit beyond the basics
- How data are stored (not just raster or vector! I've heard that already)
Things common to most programming languages
- values and references
- assignments and expressions
- decisions and branches
- loops and iterations
- functions
- modules
- objects
- linear, event-driven and mvc
Geometry for Geographers-- Calculations based on spatial features
- extents and bounding boxes
- length, perimeter, area, volume
- midpoint, center, centroid
- fuzziness
- error
Working data from other sources
- The nature of GPS data
- Tabular data
- Scanned paper maps and photos
- Autocad drawings
- Legacy data (Coverages, elevation data, other sources)
Working with very large data sets
ArcMap
- Building Definition Queries
- Building expressions for labelling.
- Special symbologies?
- Maplex?
ArcGIS Extensions
- Spatial and 3D analyst
- Network analyst
VB + ArcObjects
- What does it take to get set up for VB programming in ArcGIS? Visual Studio?
The many faces of Microsoft, what can we safely ignore?
VBscript Jscript Java VBA VB C/C++/C# OLE COM DOM ActiveX .net
Python
- Model Builder
- ArcMap
- ArcCatalog
SQL
- Database design
- Using access
- Building reports with Crystal
Beyond ArcGIS
- ArcIMS
- GRASS
- Mapserver
- Exploring FWtools
- SAS
Resources
- Coping with change :-)
Projects
- Creating a data entry page for attributing.
- Finding the highest values in a field and displaying them; sub-selecting on type.
- Working with ArcPad Application Builder
- Spatial statistics
- Image classification
- Write a script to clean data
- Write a script to convert data from one format to another
- Write a script to extract data from a set of layers using the same extent
- Write a script to put all data into the same projection
