Archive for October, 2006

MetaCarta PageMapper

Posted in Locality and Space on October 23rd, 2006 at 17:53:14

This weekend, I did something a bit different than the last time I wrote — instead of writing something that geeks with maps can use, I wrote something that anyone who mentions a place in page can use.

The MetaCarta PageMapper lets you map out the locations mentioned in any page.


You can drag this link up to your browser toolbar, or you can just hit it here — see Boston, London, and Tokyo on a map with the click of a button.

It’s not perfect, but hey, nothing is. And I think it’s pretty neat.

Map Rectification

Posted in Locality and Space on October 2nd, 2006 at 08:05:21

So, what did I do with my weekend?

Built a web-based map rectification system.

‘A what?’, says the masses.

The service will allow you to upload an image, and using a reference map, you can select ground control points — points from the reference map which match up to the uploaded image — and then warp the image. You can use any of a number of default base maps to reference against, or add your own WMS or KaMap layers to the map and use them to find ground control points.

Warping the image creates two kinds of output: a GeoTIFF, which can be downloaded for use in desktop GIS. Also, a WMS URL is provided for copy-and-pasting into OpenLayers applications.

Read more about it in the new MetaCarta Labs Weblog, and try it out for yourself!