MapFish & OpenLayers Technical Overview

 Open Source GIS, Web Mapping  No Responses »
May 222009
 

OpenLayers has its fair share of reputation as being one of the best and widely implemented (White House’s Delivering on Change using OpenLayers) open source JavaScript library for displaying dynamic map data in a webpage. Although originally developed by MetaCarta, in November 2007 it became a project of the Open Source Geospatial Foundation. Written in object-oriented JavaScript, OpenLayers supports a variety of data sources with methods for accessing geographic data such as Web Mapping Service (WMS) and Web Feature Service (WFS) protocols of the OpenGIS Consortium.

MapFish on the other hand is an open source application framework with Server and Client side components for building online mapping applications. The Mapfish Client is built upon OpenLayers for the mapping part, ExtJS and GeoExt for the GUI part. MapFish Server deals with server side functions and can be used with MapServer, GeoServer or MapGuide.

Geoweb Guru outlines the technical aspects of these open source mapping utilities with examples at Technical Overview: MapFish and Technical Overview: OpenLayers

 Posted by Sriharsha Vankadara at 10:57 pm  Tagged with: , , ,

Get a clean desktop on Ubuntu

 Linux, Tips  1 Response »
May 182009
 

Be it GNOME or KDE, most Linux power users prefer to have their desktops slick and geeky with screenlets, gadgets, docks or conky. But I on the other hand (cannot call myself a power user) like to keep my Ubuntu desktop clean without any visual clutter by preventing nautilus from drawing  icons. It is only then I believe the true beauty of a wallpaper can be relished.

To treat yourself with a clean desktop, bring up the run application dialog with Alt + F2.

Type gconf-editor to invoke the GNOME configuration editor. Navigate to the key /apps/nautilus/preferences and scroll down to the key show_desktop.  Uncheck the box next to the key under the value column.

show desktop

P.S. : Right-clicking on the desktop is disabled with this setting

 Posted by Sriharsha Vankadara at 8:44 pm  Tagged with: , , , ,

Moving to WordPress

 General  No Responses »
May 102009
 

I’ve been planning to move this blog from Blogger for quite some time now, and I believe the time and necessity has come.

Considering the features and advantages of having a blogging platform installed on a personal domain, I have decided to go ahead with WordPress as my choice.

The transfer could take some time, so please bear with any inconvenience that is caused during this process…

 Posted by Sriharsha Vankadara at 5:29 pm  Tagged with:

OpenGeo Architecture White Paper

 Open Source GIS, Web Mapping  No Responses »
May 072009
 

Paul Ramsey, James Fee and Geoweb Guru – all have blogged about it already.

OpenGeo, the geospatial division of The Open Planning Project which provides enterprise support for open source web mapping platform have published a new white paper on OpenGeo Architecture.

The paper addresses the distinct functionalities of each of the components that make up the OpenGeo Suite (PostGIS, GeoServer, GeoWebCache, OpenLayers and GeoExt) and how they interact with each other.

 Posted by Sriharsha Vankadara at 2:15 pm  Tagged with: ,
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