20 December 2011

Google Vector Layers (Project)

Google Vector Layers (Project)

*This is an open source project so enhancements and patches are encouraged.

Google Vector Layers allows you to easily add one or more vector layers from a number of different geo web services to a Google Maps API based application.

Overlaying custom vector layers (CartoDB) on-top of Google Maps - An excellent use of geojason

How it works?
Google Vector Layers works by listening to map events (pan and zoom) and then fetching features within the map bounds after each event. This method works great for data sets with lots of features that you want to interact with, but not load all at once.

  • Multi-Provider Support - Current support for ArcGIS Server, Arc2Earth, Geocommons and CartoDB (with more in mind)
  • Easy InfoWindow Templating - Create InfoWindow templates with a simple string with property names {mustached} or with a function that gets passed feature properties, and should return valid HTML for the InfoWindow
  • Dynamic Data Support - Easily visualize live data that auto-updates at an interval that you set (and makes sense for your data’s update frequency)
  • Simple, Powerful Symbology - Style your layers with a single symbology, a unique symbol for specific attribute values or set symbols to display if a feature’s attibutes are within a specific range. Or …
  • Use Your Current Styles - If you’re using an ArcGIS Server layer you can use the styles you’ve already spent time creating in ArcMap
  • Scale Dependent Rendering - You wouldn’t want to show lots of features with complex geometries at lower zoom levels - Using scaleRange lets you set the minimum and maximum scales a layer should be visbible
Planned Layers
    Google Fusion Tables

Examples with code

Created by
Jason Sanford

08 December 2011

Scotland Flood and Warnings Maps

Scotland Flood and Warnings Maps

Wind and Rain now hitting Scotland

Indicative River & Coastal Flood Map [Not Real-Time]

Image source STV

Met Office - Red Alert  Map (Beta)


Know of  anymore maps/tools for Weather in Scotland - comment on blog.

06 December 2011

Mapped: Every death on every road in Great Britain 1999-2010

Mapped: Every death on every road in Great Britain 1999-2010

The live map shows the location and detail of each collision and will be updated as information is received throughout the day.


"Britain has one of the best records in the world for road casualties. However, hundreds still die on the roads every year. In 2010, the police recorded 1,850 deaths, 22,660 people seriously injured and 184,138 who received light injuries.
About this data
Using official data recorded by police in Great Britain between 1999 and 2010, we have plotted every road collision in which someone died. In all, 36,371 fatalities are marked on this interactive map. You will also find partial data for Northern Ireland, for 2004-2009.

Detailed information about each crash is recorded by the police at the scene. It is subsequently transferred onto a computer database. This is available to researchers from the Economic and Social Data Service. As with any large collection of data, there will be errors and omissions that occur in this process and some of these will be found in this map. The BBC apologises for any distress or offence that may be caused by the inclusion of these errors."


Thanks to @neilhansonphoto
for the link.