edits
edits

file:a/index.md -> file:b/index.md
#GovHack Toolkit #GovHack Toolkit
Welcome to the GovHack toolkit. This page provides all the information you need to prepare hackfest entries. Welcome to the GovHack toolkit. This page provides all the information you need to prepare hackfest entries.
These tools can be used to make entries like mobile apps, web apps and data visualisations/infographics. These tools can be used to make entries like mobile apps, web apps and data visualisations/infographics.
   
The text of this toolkit is open for reuse under a Creative Commons Attribution licence and improvements are encouraged via Git http://github.com/maxious/govhack-tools or via email patches to govhack@lambdacomplex.org The text of this toolkit is open for reuse under a Creative Commons Attribution licence and improvements are encouraged via Git http://github.com/maxious/govhack-tools or via email patches to govhack@lambdacomplex.org
   
# How to register and submit your entry # How to register and submit your entry
## Registering your team ## Registering your team
Coming Soon: how to use the website "Hacker Space" to register and find teams. Coming Soon: how to use the website "Hacker Space" to register and find teams.
   
## Preparing your submission ## Preparing your submission
   
You should record a 3 minute speech and mix images/text to accompany. You should record a 3 minute speech and mix images/text to accompany.
http://www.screenr.com/ and other screencasting tools allow you to demo apps. http://www.screenr.com/ and other screencasting tools allow you to demo apps.
To mix together clips, you can use youtube video editor http://www.youtube.com/editor or local software like http://www.videolan.org/vlmc/ or http://www.lwks.com/ To mix together clips, you can use youtube video editor http://www.youtube.com/editor or local software like http://www.videolan.org/vlmc/ or http://www.lwks.com/
   
You also need to submit your "source material". For an application this may be source code, for another work it might be your notes or prototypes. You also need to submit your "source material". For an application this may be source code, for another work it might be your notes or prototypes.
The key thing here is that your source material demonstrates to the judges that some of the end result was your own work and that it is possible for another person to replicate that work. The key thing here is that your source material demonstrates to the judges that some of the end result was your own work and that it is possible for another person to replicate that work.
   
   
# General References {#general-data-hacking-and-programming-references} # General References {#general-data-hacking-and-programming-references}
   
   
## The basics of being a data scientist ## The basics of being a data scientist
   
* Have a hypothesis - even if you're making a tool/api that helps people with their questions too, remember what the objective of that is. * Have a hypothesis - even if you're making a tool/api that helps people with their questions too, remember what the objective of that is.
* Find the people and tools you need to prove/show/find. This rest of this page will help with the latter. * Find the people and tools you need to prove/show/find. This rest of this page will help with the latter.
* Analyse and present results - were they what you expected? Do they help explain to others what you have found out? * Analyse and present results - were they what you expected? Do they help explain to others what you have found out?
Can present as a interactive data visualisation or a web/mobile application or just a infographic/motion graphics video that tells a story. Can present as a interactive data visualisation or a web/mobile application or just a infographic/motion graphics video that tells a story.
   
[![](img/How-to-participate-in-GovHack_html_m6a65720f-300x199.gif "Data Journalism Diagram")](img/How-to-participate-in-GovHack_html_m6a65720f.gif)</dt> [![](img/How-to-participate-in-GovHack_html_m6a65720f-300x199.gif "Data Journalism Diagram")](img/How-to-participate-in-GovHack_html_m6a65720f.gif)</dt>
Illustration from Data Journalism Handbook, CC BY-SA 3.0</dd> Illustration from Data Journalism Handbook, CC BY-SA 3.0</dd>
   
The best high level reference is the 'Understanding Data' and 'Delivering Data' chapters of the Data Journalism Handbook which is available online for free at The best high level reference is the 'Understanding Data' and 'Delivering Data' chapters of the Data Journalism Handbook which is available online for free at
[datajournalismhandbook.org](http://datajournalismhandbook.org/) [datajournalismhandbook.org](http://datajournalismhandbook.org/)
   
You can learn the technical skills from scratch in Visualize This: The FlowingData Guide to Design, Visualization, and Statistics by Nathan Yau or for more advanced You can learn the technical skills from scratch in Visualize This: The FlowingData Guide to Design, Visualization, and Statistics by Nathan Yau or for more advanced
practical advice check out Data Analysis with Open Source Tools by Philipp K. Janert practical advice check out Data Analysis with Open Source Tools by Philipp K. Janert
For further reading in this space For further reading in this space
[http://flowingdata.com/2012/04/27/data-and-visualization-blogs-worth-following/](http://flowingdata.com/2012/04/27/data-and-visualization-blogs-worth-following/) [http://flowingdata.com/2012/04/27/data-and-visualization-blogs-worth-following/](http://flowingdata.com/2012/04/27/data-and-visualization-blogs-worth-following/)
   
   
**Statistics** **Statistics**
   
A great guide to statistics is A great guide to statistics is
[Think Stats](http://greenteapress.com/thinkstats/html/index.html) [Think Stats](http://greenteapress.com/thinkstats/html/index.html)
   
**Programming** **Programming**
   
Programming is valuable skill for manipulating and displaying data. Programming is valuable skill for manipulating and displaying data.
Basic tutorials for a variety of languages are available for free online or you can learn interactively with websites like [Codecademy for JavaScript](http://www.codecademy.com/#!/exercises/0), [Learn Python](http://www.learnpython.org/) or [Try Ruby](http://tryruby.org/) Basic tutorials for a variety of languages are available for free online or you can learn interactively with websites like [Codecademy for JavaScript](http://www.codecademy.com/#!/exercises/0), [Learn Python](http://www.learnpython.org/) or [Try Ruby](http://tryruby.org/)
   
For web applications and visualisations, you'll need a basic understanding of JavaScript in order to configure pre made libraries like jQuery. A good source for Javascript information is the [Mozilla Development Network Javascript Page](https://developer.mozilla.org/en/JavaScript) For web applications and visualisations, you'll need a basic understanding of JavaScript in order to configure pre made libraries like jQuery. A good source for Javascript information is the [Mozilla Development Network Javascript Page](https://developer.mozilla.org/en/JavaScript)
   
**Accessibility/User Experience** **Accessibility/User Experience**
   
Following accessibility guidelines not only make a application accessible but make it a better experience for all users! Even if not making an app, good to consider these things to do and not do when designing for humans: [http://www.w3.org/TR/WCAG/](http://www.w3.org/TR/WCAG/) Following accessibility guidelines not only make a application accessible but make it a better experience for all users! Even if not making an app, good to consider these things to do and not do when designing for humans: [http://www.w3.org/TR/WCAG/](http://www.w3.org/TR/WCAG/)
   
   
   
# Developer Tools For Your Computer {#developer-tools-for-your-computer} # Developer Tools For Your Computer {#developer-tools-for-your-computer}
No matter what kind of application you have for the data, there are many tools you can use to better collaborate and manage your project. No matter what kind of application you have for the data, there are many tools you can use to better collaborate and manage your project.
   
### Source Control ### Source Control
Using a version control system like Git or Subversion allows you to keep many different versions of what you have been working on so you can collaborate with others or simply back up your files so you don't lose them! Using a version control system like Git or Subversion allows you to keep many different versions of what you have been working on so you can collaborate with others or simply back up your files so you don't lose them!
   
[![](img/Screenshot-at-2012-04-29-172132-300x235.png "Git Screenshot")](http://progit.org/book/) [![](img/Screenshot-at-2012-04-29-172132-300x235.png "Git Screenshot")](http://progit.org/book/)
   
There are [tutorials on git](http://progit.org/book/) and [GUIs to help you](http://code.google.com/p/tortoisegit/) There are [tutorials on git](http://progit.org/book/) and [GUIs to help you](http://code.google.com/p/tortoisegit/)
There is also a [manual for Subversion](http://svnbook.red-bean.com/) and a [similar GUI for Subversion](http://tortoisesvn.net/) There is also a [manual for Subversion](http://svnbook.red-bean.com/) and a [similar GUI for Subversion](http://tortoisesvn.net/)
   
   
### Task Tracking ### Task Tracking
   
Issue/task trackers allow you to outline the tasks required for your project and assign them to people to do. Issue/task trackers allow you to outline the tasks required for your project and assign them to people to do.
   
[Trello](https://trello.com/) and [Workflowy](https://workflowy.com/) are free, lightweight project management tools suitable for a rapid project! [Trello](https://trello.com/) and [Workflowy](https://workflowy.com/) are free, lightweight project management tools suitable for a rapid project!
   
## Hosted Developer Tools {#hosted-developer-tools} ## Hosted Developer Tools {#hosted-developer-tools}
   
Can get many tools (source control, issue tracking) combined into one service cloud hosted so there's no setup required. Can get many tools (source control, issue tracking) combined into one service cloud hosted so there's no setup required.
   
### Github ### Github
Git obviously but svn/hg interfaces are also available. Provide their own GUI for Windows/OSX or use a variety of Git capable tools Git obviously but svn/hg interfaces are also available. Provide their own GUI for Windows/OSX or use a variety of Git capable tools
   
### Sourceforge ### Sourceforge
   
Subversion, Git, Mercurial, Bazaar, CVS, issue tracker, wiki, release file downloads. Unlimited free use for open source projects. Subversion, Git, Mercurial, Bazaar, CVS, issue tracker, wiki, release file downloads. Unlimited free use for open source projects.
   
You can create your own Sourceforge project at [http://sourceforge.net/](http://sourceforge.net/) You can create your own Sourceforge project at [http://sourceforge.net/](http://sourceforge.net/)
   
### Google Code Project Hosting ### Google Code Project Hosting
   
Git, Mercurial, and Subversion code. Issue tracker, wiki, release file downloads. Unlimited free use for open source projects. Git, Mercurial, and Subversion code. Issue tracker, wiki, release file downloads. Unlimited free use for open source projects.
   
You can host your Google Code project and get access to developer tools, APIs and documentation at [http://code.google.com/](http://code.google.com/) You can host your Google Code project and get access to developer tools, APIs and documentation at [http://code.google.com/](http://code.google.com/)
   
   
# Applications of data hacking # Applications of data hacking
   
## API Development {#api-development} ## API Development {#api-development}
   
   
So an API isn't just an XML file ![;)](http://www.govhack.org/wp-includes/images/smilies/icon_wink.gif) So an API isn't just an XML file ![;)](http://www.govhack.org/wp-includes/images/smilies/icon_wink.gif)
   
A good web based data API: A good web based data API:
   
* Is logically organised * Is logically organised
* Can filter returned data * Can filter returned data
* Can return results in different open formats (CSV/JSON etc.) * Can return results in different open formats (CSV/JSON etc.)
* Is efficient and responsive by using caching and databases appropriately * Is efficient and responsive by using caching and databases appropriately
* Handles errors gracefully * Handles errors gracefully
* Monitors and controls access (to show benefit realised of API and prevent abuse) * Monitors and controls access (to show benefit realised of API and prevent abuse)
* Provides appropriate documentation with examples * Provides appropriate documentation with examples
   
Some people like sensis [http://](http://developers.sensis.com.au/)[developers.sensis.com.<wbr>au</wbr>](http://developers.sensis.com.au/)[/](http://developers.sensis.com.au/) use a provider like[http://](http://mashery.com/)[mashery.com](http://mashery.com/)[/](http://mashery.com/) or [https](https://apigee.com/)[://](https://apigee.com/)[apigee.com](https://apigee.com/) or [http://](http://apiaxle.com/)[apiaxle.com](http://apiaxle.com/)[/](http://apiaxle.com/) or [http://www.3scale.net/](http://www.3scale.net/) which handles making a good API for them. Some people like sensis [http://](http://developers.sensis.com.au/)[developers.sensis.com.<wbr>au</wbr>](http://developers.sensis.com.au/)[/](http://developers.sensis.com.au/) use a provider like[http://](http://mashery.com/)[mashery.com](http://mashery.com/)[/](http://mashery.com/) or [https](https://apigee.com/)[://](https://apigee.com/)[apigee.com](https://apigee.com/) or [http://](http://apiaxle.com/)[apiaxle.com](http://apiaxle.com/)[/](http://apiaxle.com/) or [http://www.3scale.net/](http://www.3scale.net/) which handles making a good API for them.
   
Atlassian have a great page on what makes a good API https://developer.atlassian.com/display/REST/Atlassian+REST+API+Design+Guidelines+version+1) Atlassian have a great page on what makes a good API https://developer.atlassian.com/display/REST/Atlassian+REST+API+Design+Guidelines+version+1)
   
HowTo.gov has a bunch of api resources about choosing SOAP vs. REST etc. http://www.howto.gov/mobile/apis-in-government HowTo.gov has a bunch of api resources about choosing SOAP vs. REST etc. http://www.howto.gov/mobile/apis-in-government
   
API documentation is important too! Traditionally for SOAP APIs, you use WSDL but for REST try [Swagger](http://swagger.wordnik.com/) or [iodocs](https://github.com/mashery/iodocs) API documentation is important too! Traditionally for SOAP APIs, you use WSDL but for REST try [Swagger](http://swagger.wordnik.com/) or [iodocs](https://github.com/mashery/iodocs)
Many web app frameworks can generate the documentation for you. For example Symfony for PHP http://symfony.com/ https://github.com/FriendsOfSymfony/FOSRestBundle http://williamdurand.fr/2012/08/02/rest-apis-with-symfony2-the-right-way/ https://github.com/nelmio/NelmioApiDocBundle Many web app frameworks can generate the documentation for you. For example Symfony for PHP http://symfony.com/ https://github.com/FriendsOfSymfony/FOSRestBundle http://williamdurand.fr/2012/08/02/rest-apis-with-symfony2-the-right-way/ https://github.com/nelmio/NelmioApiDocBundle
Or for Ruby on Rails there is is https://github.com/elc/rapi_doc https://github.com/Pajk/apipie-rails Or for Ruby on Rails there is is https://github.com/elc/rapi_doc https://github.com/Pajk/apipie-rails
   
better apis https://github.com/liip/LiipHelloBundle better apis https://github.com/liip/LiipHelloBundle
   
http://amberonrails.com/building-stripes-api/ http://amberonrails.com/building-stripes-api/
   
example WeatherTree weather API example WeatherTree weather API
   
   
## Infographics and Data Visualisation {#data-visualisation} ## Infographics and Data Visualisation {#data-visualisation}
   
Infographics try to contextualise charts and graphs to tell a story. Data vis builds on this to find new ways to design insight. Infographics try to contextualise charts and graphs to tell a story. Data vis builds on this to find new ways to design insight.
   
Most of the categories to follow have visualisation tools specific to their purpose. Most of the categories to follow have visualisation tools specific to their purpose.
   
You can find some data visualisation tools below: You can find some data visualisation tools below:
   
[Essential Colletion](http://www.visualisingdata.com/index.php/2011/07/part-6-the-essential-collection-of-visualisation-resources/) [Essential Colletion](http://www.visualisingdata.com/index.php/2011/07/part-6-the-essential-collection-of-visualisation-resources/)
[Drawing By Numbers Tools and Resources](http://drawingbynumbers.org/toolsandresources) [Drawing By Numbers Tools and Resources](http://drawingbynumbers.org/toolsandresources)
- http://selection.datavisualization.ch/ data viz tools catalog - http://selection.datavisualization.ch/ data viz tools catalog
Also check out [http://thejit.org](http://thejit.org/) &amp; [http://www.senchalabs.org/<wbr>philogl/</wbr>](http://www.senchalabs.org/philogl/) (contributed by Matt Adcock) Also check out [http://thejit.org](http://thejit.org/) &amp; [http://www.senchalabs.org/<wbr>philogl/</wbr>](http://www.senchalabs.org/philogl/) (contributed by Matt Adcock)
   
A good infographic should use visual art concepts and [good color schemes](http://www.r-bloggers.com/the-paul-tol-21-color-salute/) A good infographic should use visual art concepts and [good color schemes](http://www.r-bloggers.com/the-paul-tol-21-color-salute/)
For more information on the theory of data visualisation check out the (Stanford CS448B notes)[https://graphics.stanford.edu/wikis/cs448b-12-fall/] For more information on the theory of data visualisation check out the (Stanford CS448B notes)[https://graphics.stanford.edu/wikis/cs448b-12-fall/]
   
Some examples of data visualisation can be seen on [the Sunlight Foundation tumblr](http://sunfoundation.tumblr.com/) or at the GovHack alumn [The Open Budget](http://www/.theopenbudget.org) Some examples of data visualisation can be seen on [the Sunlight Foundation tumblr](http://sunfoundation.tumblr.com/) or at the GovHack alumn [The Open Budget](http://www/.theopenbudget.org)
   
   
## Web Applications ## Web Applications
   
With the rise of HTML5 technologies it is easier than ever to make a web application for engaging use of data. With the rise of HTML5 technologies it is easier than ever to make a web application for engaging use of data.
It's easy to quickly make a good looking and accessible webpage if you use a CSS framework like Bootstrap or Zurb Foundation. It's easy to quickly make a good looking and accessible webpage if you use a CSS framework like Bootstrap or Zurb Foundation.
There are a variety of bootstrap themes like [Flat-UI](http://designmodo.com/flat-free/) There are a variety of bootstrap themes like [Flat-UI](http://designmodo.com/flat-free/)
   
Check out the visualisation tools listed in the data sections for web application tools like these [CSS Dashboard gauges](http://www.larentis.eu/donuts/) Check out the visualisation tools listed in the data sections for web application tools like these [CSS Dashboard gauges](http://www.larentis.eu/donuts/)
   
### Examples ### Examples
   
   
#### PlanningAlerts #### PlanningAlerts
   
[![Planning Alerts Screenshot](img/How-to-participate-in-GovHack_html_2f0199ff1-300x221.png "Planning Alerts Screenshot")](img/How-to-participate-in-GovHack_html_2f0199ff1.png)Description: Planning Alerts takes data from local government development applications and sends alerts to users based on what applications are lodged in their area. [![Planning Alerts Screenshot](img/How-to-participate-in-GovHack_html_2f0199ff1-300x221.png "Planning Alerts Screenshot")](img/How-to-participate-in-GovHack_html_2f0199ff1.png)Description: Planning Alerts takes data from local government development applications and sends alerts to users based on what applications are lodged in their area.
   
Programming Language: Ruby Programming Language: Ruby
   
Source Control: [Git](https://github.com/openaustralia/planningalerts-app) Source Control: [Git](https://github.com/openaustralia/planningalerts-app)
   
Issue Tracking: [Atlassian JIRA](http://tickets.openaustraliafoundation.org.au/browse/PA/) Issue Tracking: [Atlassian JIRA](http://tickets.openaustraliafoundation.org.au/browse/PA/)
   
#### LobbyLens #### LobbyLens
   
[![](img/129-Screenshot-LobbyClue_-_Chromium-300x180.png "LobbyLens screenshot")](img/129-Screenshot-LobbyClue_-_Chromium.png) [![](img/129-Screenshot-LobbyClue_-_Chromium-300x180.png "LobbyLens screenshot")](img/129-Screenshot-LobbyClue_-_Chromium.png)
   
Description: Displays connections between government contracts, business details, politician responsibilities, lobbyists, clients of lobbyists, political donors and the location of these entities. Description: Displays connections between government contracts, business details, politician responsibilities, lobbyists, clients of lobbyists, political donors and the location of these entities.
   
Programing Language: PHP Programing Language: PHP
   
Source Control: SVN (Subversion) Source Control: SVN (Subversion)
   
Issue Tracking: A whiteboard Issue Tracking: A whiteboard
   
#### bus.lambdacomplex.org #### bus.lambdacomplex.org
   
[![](img/How-to-participate-in-GovHack_html_3789acae-300x253.jpg "Bus.lambda screenshot")](img/How-to-participate-in-GovHack_html_3789acae.jpg) [![](img/How-to-participate-in-GovHack_html_3789acae-300x253.jpg "Bus.lambda screenshot")](img/How-to-participate-in-GovHack_html_3789acae.jpg)
   
Description: Online Canberra Bus Timetables and Trip Planner. Description: Online Canberra Bus Timetables and Trip Planner.
   
Programing Language: PHP/Ruby Programing Language: PHP/Ruby
   
Source Control: Git Source Control: Git
   
Issue Tracking: Github Issue Tracking: Github
   
## Mobile ## Mobile
   
If you want to get stared quickly with mobile application development, it's worth considering cross platform frameworks like http://www.sencha.com/products/touch http://phonegap.com/ http://cordova.apache.org/ If you want to get stared quickly with mobile application development, it's worth considering cross platform frameworks like http://www.sencha.com/products/touch http://phonegap.com/ http://cordova.apache.org/
   
For a simple mobile app, a web application with a framewrok like jQuery Mobile can work quite well (as used on directory.gov.au) For a simple mobile app, a web application with a framewrok like jQuery Mobile can work quite well (as used on directory.gov.au)
   
For data visualisation, there are a variety of graph widgets http://code.google.com/p/afreechart/ http://code.google.com/p/snowdon/ http://code.google.com/p/chartdroid/ http://androidplot.com/ http://code.google.com/p/achartengine/ For data visualisation, there are a variety of graph widgets http://code.google.com/p/afreechart/ http://code.google.com/p/snowdon/ http://code.google.com/p/chartdroid/ http://androidplot.com/ http://code.google.com/p/achartengine/
   
You may wish to consider backend frameworks like http://helios.io/ or https://www.parse.com/ You may wish to consider backend frameworks like http://helios.io/ or https://www.parse.com/
   
### Examples ### Examples
   
Bureau of Meteorology Water Storage App http://icelab.com.au/work/bureau-of-meteorology/ Bureau of Meteorology Water Storage App http://icelab.com.au/work/bureau-of-meteorology/
   
NZ Gov budget http://www.treasury.govt.nz/budget/app NZ Gov budget http://www.treasury.govt.nz/budget/app
   
   
# Geographical Data Tools {#geographical-data-tools} # Geographical Data Tools {#geographical-data-tools}
   
Check out the [GeoRabble Boundary Mapper's Cookbook](http://georabble.org/2012/05/31/the-boundary-mappers-cookbook/) to see how you can tie all these things together! Check out the [GeoRabble Boundary Mapper's Cookbook](http://georabble.org/2012/05/31/the-boundary-mappers-cookbook/) to see how you can tie all these things together!
   
   
## Key datasets ## Key datasets
There are a variety of base layers like AGRI aerial imagery of Australia http://agri.openstreetmap.org/ or WMS services like http://irs.gis-lab.info/ wms or http://www.gdal.org/frmt_wms_openstreetmap_tms.xml There are a variety of base layers like AGRI aerial imagery of Australia http://agri.openstreetmap.org/ or WMS services like http://irs.gis-lab.info/ wms or http://www.gdal.org/frmt_wms_openstreetmap_tms.xml
   
ASGS from ABS including suburbs/postcodes andrewharvey4.wordpress.com postgis/asgs tutorial ASGS from ABS including suburbs/postcodes andrewharvey4.wordpress.com postgis/asgs tutorial
You can also get KML layers for various statistical measures on the ABS TableBuilder tool. You can also get KML layers for various statistical measures on the ABS TableBuilder tool.
   
## Wrangling ## Wrangling
   
### Converting ### Converting
There are many spatial data formats and often the one your tool requires is not the one the dataset is provided in. There are many spatial data formats and often the one your tool requires is not the one the dataset is provided in.
You can convert spatial datasets online with http://converter.mygeodata.eu/vector or locally using GDAL (which better for >10 megabyte datasets) You can convert spatial datasets online with http://converter.mygeodata.eu/vector or locally using GDAL (which better for >10 megabyte datasets)
   
### Geocoding ### Geocoding
Google Maps APIs allow you to convert an address to map co-ordinates (geocoding) but you must display on a Google Map. The easiest way to do is with a Google Spreadsheet/Fusion Table http://williamparry.blogspot.com.au/2011/04/putting-data-into-google-fusion-tables.htm http://support.google.com/fusiontables/answer/1012281?hl=en&ref_topic=2592806 Google Maps APIs allow you to convert an address to map co-ordinates (geocoding) but you must display on a Google Map. The easiest way to do is with a Google Spreadsheet/Fusion Table http://williamparry.blogspot.com.au/2011/04/putting-data-into-google-fusion-tables.htm http://support.google.com/fusiontables/answer/1012281?hl=en&ref_topic=2592806
   
If you need geocoding for more than display (working out the distance between points etc) or you don't want to use Google Maps, Cloudmade offers free OpenStreetMap based geocoding http://developers.cloudmade.com/projects/show/geocoding-http-api If you need geocoding for more than display (working out the distance between points etc) or you don't want to use Google Maps, Cloudmade offers free OpenStreetMap based geocoding http://developers.cloudmade.com/projects/show/geocoding-http-api
   
## Analysis ## Analysis
   
   
### PostGIS ### PostGIS
   
[![](img/postgisexample-300x130.jpg "postgisexample")](img/postgisexample.jpg)PostGIS is an extension for the PostgreSQL database server that allows you to store and manipulate geospatial data on a large scale. For example finding which points are in an area or what points are closest . It is also very useful for storing geospatial data because it can convert between all major formats including ESRI Shape files and Google Earth/Maps KML. [![](img/postgisexample-300x130.jpg "postgisexample")](img/postgisexample.jpg)PostGIS is an extension for the PostgreSQL database server that allows you to store and manipulate geospatial data on a large scale. For example finding which points are in an area or what points are closest . It is also very useful for storing geospatial data because it can convert between all major formats including ESRI Shape files and Google Earth/Maps KML.
   
### Quantum GIS ### Quantum GIS
   
[![](img/How-to-participate-in-GovHack_html_m50afbe88-300x160.jpg "QGIS Screenshot")](img/How-to-participate-in-GovHack_html_m50afbe88.jpg)QGIS is a graphical desktop application that allows viewing and editing of geospatial data. Some good base maps are available by adding the WMS layer/server [http://irs.gis-lab.info/](http://irs.gis-lab.info/) [![](img/How-to-participate-in-GovHack_html_m50afbe88-300x160.jpg "QGIS Screenshot")](img/How-to-participate-in-GovHack_html_m50afbe88.jpg)QGIS is a graphical desktop application that allows viewing and editing of geospatial data. Some good base maps are available by adding the WMS layer/server [http://irs.gis-lab.info/](http://irs.gis-lab.info/)
   
## Visualisation ## Visualisation
   
### Layar and other augmented reality tools ### Layar and other augmented reality tools
[Layar](http://www.layar.com/) provides a platform for exploring a dataset by travelling to the actual locations of the data and looking through a smartphone. Custom markers (2D or 3D) seem to float in the air and can be clicked on for more information. You can even trigger an event like playing music when within a certain range of a location. [Layar](http://www.layar.com/) provides a platform for exploring a dataset by travelling to the actual locations of the data and looking through a smartphone. Custom markers (2D or 3D) seem to float in the air and can be clicked on for more information. You can even trigger an event like playing music when within a certain range of a location.
   
### Google Fusion Tables/ChartsBin/[OpenHeatMap](http://www.openheatmap.com/) ### Google Fusion Tables/ChartsBin/[OpenHeatMap](http://www.openheatmap.com/)
   
[![](img/fusiontablesscreenshot-300x168.jpg "fusiontablesscreenshot")](img/fusiontablesscreenshot.jpg)Input numerical values and areas to a spreadsheet and maps are produced where the areas are colored on a scale of the values [![](img/fusiontablesscreenshot-300x168.jpg "fusiontablesscreenshot")](img/fusiontablesscreenshot.jpg)Input numerical values and areas to a spreadsheet and maps are produced where the areas are colored on a scale of the values
   
http://www.peteraldhous.com/CAR/Making_maps_with_Google_Fusion_Tables.pdf tutorial or http://support.google.com/fusiontables/topic/2592754?hl=en&ref_topic=27020 for google help files http://www.peteraldhous.com/CAR/Making_maps_with_Google_Fusion_Tables.pdf tutorial or http://support.google.com/fusiontables/topic/2592754?hl=en&ref_topic=27020 for google help files
   
### [Cartographer.js](http://cartographer.visualmotive.com/) ### [Cartographer.js](http://cartographer.visualmotive.com/)
   
[![](img/cartographerjs-300x187.png "cartographerjs screenshot")](img/cartographerjs.png)Input data as JSON and interactive maps are produced. [![](img/cartographerjs-300x187.png "cartographerjs screenshot")](img/cartographerjs.png)Input data as JSON and interactive maps are produced.
You can also try d3 maps: http://bost.ocks.org/mike/map/ You can also try d3 maps: http://bost.ocks.org/mike/map/
   
   
### OpenLayers/Google Maps/[Leaflet](http://leaflet.cloudmade.com/) ### OpenLayers/Google Maps/[Leaflet](http://leaflet.cloudmade.com/)
   
[![](img/How-to-participate-in-GovHack_html_512fcbe1-300x173.jpg "OpenLayers Screenshot")](img/How-to-participate-in-GovHack_html_512fcbe1.jpg)Display points and different layers. Leaflet is the easiest to use if you just want to show points with popups when clicked on. [![](img/How-to-participate-in-GovHack_html_512fcbe1-300x173.jpg "OpenLayers Screenshot")](img/How-to-participate-in-GovHack_html_512fcbe1.jpg)Display points and different layers. Leaflet is the easiest to use if you just want to show points with popups when clicked on.
There are wrappers for Google maps like http://hpneo.github.com/gmaps/examples.html and Mapstraction that can make it easier to use too. There are wrappers for Google maps like http://hpneo.github.com/gmaps/examples.html and Mapstraction that can make it easier to use too.
   
If you need to customise the base map, try TileMill. If you need to customise the base map, try TileMill.
   
### NASA World Wind/Google Earth ### NASA World Wind/Google Earth
   
[![](img/How-to-participate-in-GovHack_html_4dda24a4-300x261.jpg "WorldWind screenshot")](img/How-to-participate-in-GovHack_html_4dda24a4.jpg)Google Earth provides 3\. viewing of KML/GML files which represent points and shapes, both through a desktop application and a web plugin. These can be extended with interactive features that allow you to view by timeline or have animated tours between different points. You can also develop and customise your own viewer with the open source [NASA World Wind toolkit.](http://goworldwind.org/demos/) [![](img/How-to-participate-in-GovHack_html_4dda24a4-300x261.jpg "WorldWind screenshot")](img/How-to-participate-in-GovHack_html_4dda24a4.jpg)Google Earth provides 3\. viewing of KML/GML files which represent points and shapes, both through a desktop application and a web plugin. These can be extended with interactive features that allow you to view by timeline or have animated tours between different points. You can also develop and customise your own viewer with the open source [NASA World Wind toolkit.](http://goworldwind.org/demos/)