Work Log                                                                                

Jan 13^th, 2004

This project contains 82 scanworlds which will take a long time to put together. The good thing is that the operators, Karen and professor Louden kept good record of the scanning process and all positions and targets are highly organized which makes it easier to do the registration in Geomagic.

As always, the original database file was copied and I am using a test copy to do the registration.

Since there are so many scanworlds, I decide to group the scanworlds by the scan positions. Register the scanworlds in the same positions first, then put the registered parts together.

I start from position A which contains scanworld 1-9. During the registration process, I found that the positions P and O will be very helpful to be included in part one.

In order to show the situation of the tent inside the room, I decided to keep some of the glass and solid walls. The cloud points were clean up in cyra cyclone.

Registration wasn’t cause a lot of trouble.

The 12 scanworlds were put together successfully.

Jan 14^th, 2004

Start with position B and finished it.

Jan 15-Jan 18, 2004

All registration completed. For future work, the I saved several files with different conditions. Below,

This one shows the final registered tent

This one shows how the outer tent and the inner layer were put together in the environment of Geomagic software.

This is the site plan of the tent. From which you can see the inner layer of the tent and its relationship with the outer layer.

Jan 19, 2004

The final presentation should be brought to the schedule. I was trying to figure out a way to finish the final drawings which will fulfill the HABS requirement.

Jan 20, 2004

As shown above, the screen capture from Geomagic software show the fabric perfectly, so I made sever screen caps to show the different elevation view.

Jan 21, 2004

The screen caps play as a hatch part in the final CAD layouts. But it needs to be cleaned out before I can put into real use. This requires that I switch between several views back and forth. So it is very important to make the whole model using the global system in geomagic software. I used “Move to Exact Position” order under the menu of “tools”. In geomagic.

The order allows you to move the whole model to a certain place by adjust the relationship between the model and the global coordinate system as showed below.

Then, the switch between top and side views becomes a piece of cake by click orders under the “view” menu.

But it is still very important to save a certain view port to do the final screen capture. In case that possible to screen cap  the same view several times with different parts showing, always switch to the saved view port and do the snapshot with the same resolution, so they can be matched in photoshop or auto CAD.

Jan 22, 2004

Since the cloud point model in Geomagic is transparency, it is necessary to separate the inner and outer layer apart. To do the screen capture for autocad drawings, I also set the other side of the tent un-viewable, so that we can get a crystal clear view of the elevation.

Then I screen captured the other parts that are viewable from this direction, and match them under Photoshop before bring it to autoCAD.

The result is pretty good. So I began the tracing  work at once.

The original photo picture of the tent’s detail is needed to get the final draft. But it looks ok right now.

Edited by Wei Xiong