Friday, September 19, 2008

Project Update 9/19/2008

This week we have been working on finishing the implementation of hallway segmentation and multi-desktop connections.

I have finished updating the woodward and cameron files with hallway polygons so that we can facilitate blocking/segmentation. This seems to be working well and Jianfei has implemented these changes in his program. We now have the capability to choose polygons and block them off, as well as stairways and elevators, and entrances.

The issue of multi-desktop connections works in theory, the only problem is we have not been able to connect to PostGIS remotely at the moment. However, we have been able to make changes on two program running on the local machine and were able to see dynamic updates when a section of the building has been blocked off. Next week we should be able to fix the remote connection problem so that we can log in and change things from another machine.

Progress of digitizing the atkins floorplans is very slow at the moment, currently I only have the polygon data converted from CAD. I have been experimenting with different spatial transformation algorithms to line the data up but them keep coming up very skewed. I have since went back to my old method of manually identifying a building footprint and aligning all other layers to this contour file. I hope by next week I will have a final model of the building to put in the database, and in subsequent weeks I will begin the process of identifying polygons and annotating them for use in our program. Then the last step will be creating the hallway networks, which I am very unsure about because of the complexity of this building.

Here is a screenshot of my progress digitizing cameron, this is the first floor: