Posts Tagged ‘planning’

Landscape and GIS Modeling Development

Friday, March 30th, 2012

In the paper published by Couclelis in 2005, the author presents a problem that attracts lots of research interests in GIS, the rethink about the relationship between the landscape modeling and the planning. Planning is a kind of strategy making processing, whereas modeling is mathematical and scientific process. GIS modeling process takes the previous data as input, and outputs the patterns extracted from past geospatial information. But planning is about the future strategies, we need to take the future into account based on today’s information. The gap between GIS modeling and planning brings numerous troubles in landscape studies, and this gap has been decreased by the development of technologies.

Recently, the advance of technologies has brought great changes in the landscape modeling systems. For example, web 2.0 has provided a new platform for geospatial information exchange, which means users do not only get geospatial information for web 2.0, but they also contribute information for GIS studies. With the increasing number of web 2.0 users, the information collected with web 2.0 gradually plays a pivotal role in decision-making process.

Another important factor that changes GIS modeling in landscape planning is visualization. Visualization technologies, especially 3D visualization in GIS, provide a standard view about the landscape. Compared with previous 2D technologies, 3D provides much detailed view about the landscape information. By viewing the 2D image, users may treat the landscape as flat and use their own information to imagine the true landscape. This may cause difference between people with different knowledge about designing and planning. 3D visualization significantly limits this difference by providing a standard view. With remote sensing technologies and 3D techniques, detailed information that cannot be collected by the naked-eyes can be delineated, as the video demonstrated.


35mm Photos are to Digital Photos as Paper Maps are to GIS

Thursday, February 9th, 2012

I agree with sah. I’m excited about geovisualization! It is truly amazing how maps have become a dynamic user interface! Even when I first started studying Geography several years ago, maps on paper were almost obsolete. On some levels I want to feel nostalgic, as I do for the era of film cameras, but ultimately GIS is far more practical. In his 1965 article titled New Tools for Planning, Britton Harris writes that “so long as the generation and spelling out of plans remain[s] an arduous and slow process, opportunities to compare alternative plans [are] extremely limited” (Harris 1965). Geovisualization and electronic, dynamic databases allow us to be more creative with existing information.

The MacEachren and Kraak article seems to stress the importance of having a universal map that serves many different fields at the same time (like cyberinfrastructure inferred, this hints at the future and the web 3.0, where the machines are doing a lot of the work on their own, catering to the needs of the user without being prompted). This is where I will raise an issue. I agree that it would be nice to have one map to serve multi-disciplinary studies, but at the end of the day, a tool optimized for a specific field will always do a better, more thorough job than a universal tool. For example, the cross-training running shoe is a good shoe for many different exercises. It allows you to have support in many different directions and is a great shoe for the gym, but you don’t see many basketball players wearing cross-trainers. Furthermore you would never consider wearing a soccer cleat on a gym floor. Don’t get me wrong, a cross-trainer is great, but if you want to get the most out of a shoe, you may want to try a shoe that is sport-specific.

Gone are the days of the 35mm film, quality photos and photo albums;  we’re left with millions of self portraited digital Facebook photos… Quality is rare but the options are now limitless, just like the world of GIS and geovisualization.

Andrew GIS