Archive for the ‘GIS’ Category
Serving your map tiles 30 times faster
Recently I’ve been experimenting with TileStache tiles caching system, which is similar to TileCache and other tile caching systems in scope. TileStache revealed itself as a powerful and flexible product and was very good to cache tiles generated with my Django-backed mapscript-powered WMS server. Caching and serving tiles with TileStache was by far faster then [...]
Categoria: Django , GIS , Python , Sysadmin , Tech , WebGis
17 January 2012
TileStache Vector simplify provider
This is the third part of the story that I started with part 1: Polymaps, TileStache and SVG CSS styling issues part 2: TileStache Django tiny wrapper during my experiments I wanted to reach the goal of minimize both the bandwith consuption and the number of vector coordinates that the browser needs to handle, this means that [...]
Categoria: GIS , Python , Tech , WebGis
11 January 2012
TileStache Django tiny wrapper
This is the second part of the story about my experiments with the wonderful TileStache that I started with TileStache and Polymaps SVG experiments. First, I would like to thank Michal for the quick patch inclusion, the Polymaps patch is still waiting for the pull and the Django admin patch is awating for somebody to [...]
Categoria: Django , GIS , JavaScript , Programmazione , Python , Tech , WebGis
09 January 2012
Polymaps, TileStache and SVG CSS styling issues
A few days ago I started playing with Polymaps and TileStache, two very promising WebGIS building tools. The final goal of this experiments was the integration with Django. Polymaps Polymaps is a Javascript library aimed to display svg maps in a web page, recently I’ve watched to an interesting talk about a Django-powered app built [...]
Categoria: Django , GIS , JavaScript , Programmazione , Python , Tech , WebGis
05 January 2012
Meeting di programmatori QGIS a Zurigo
Lo scorso mese di novembre 2011, si è tenuto a Zurigo il meeting internazionale di programmatori QGIS. Ho avuto la fortuna di partecipare, dato che mi occupo da diverso tempo della nuova infrastruttura web, basta su Django e sono autore di un paio di plugin QGIS python. È il secondo meeting QGIS al quale partecipo [...]
Categoria: Django , GIS , Python
16 December 2011
OpenStreeetMap and OpenCycleMap extent bookmarklet
Today I wrote a simple bookmarklet to get the map extent in EPSG:4326 from the wonderful OpenCycleMaps.org website. It also works on the OpenStreetMap.org website. You can just right-click and save it on your bookmarks, the click on the bookmark while in the OpenCycleMap site and a popup will appear with the extent coordinates printed [...]
Categoria: GIS , JavaScript , Tech
24 November 2011
GeoExt debug build
How to build an uncompressed debug version of GeoExt.
Categoria: GeoExt , GIS , JavaScript , Tech
08 November 2011
Il nuovo componente Joomla! GeoContent
GeoContent è un componente per Joomla! 1.7 e 2.5 che permette di inserire mappe di Google o OpenLayers nelle pagine del sito. Le mappe possono essere facilmente personalizzate e gli articoli possono essere georeferenziati per costruire un indice geografico del sito.
Categoria: GIS , Joomla , WebGis
09 September 2011
QGIS hackmeeting 2011
Last week I participated to the QGIS hackfest in Lisbon. It was a wonderful opportunity to meet a lot of interesting people, most of whom I’ve only known by email or chat.
Categoria: GIS , Programmazione
29 April 2011
Right click map control in OpenLayers
Thanks to a post in Spatial Notes Blog I’ve finally found a cross-browser way to handle right click on an OL map, I’ve been using an homebrew solution only to discover how it did not work correctly in MSIE. The proposed solution involves a custom control subclass and the standard OL machinery, the MSIE oddities [...]
Categoria: GIS , JavaScript , Tech
11 January 2011
