Showing posts from December, 2013

Defense of Schools

​Prior to joining the architecture profession, I observed that the design of schools and prisons were starting to converge. Prisons started getting libraries and schools started getting metal detectors. Long have students looked at schools as prisons keeping them from the play and exploration that they desire. A great fear came upon the administration decades ago. The staging of protests, sit ins and teach ins affected the design of schools for a generation. School designs included fewer and fewer windows and increasingly durable exterior finishes. Campuses that once were open to the neighbors, started having chain link and wrought iron fences.

SCRUG 11/2013

SCRUG 11/21/13 Was all about tools for scanning existing buildings.
The presenters were:
John Russo, President / CEO at Architectural Resource Consultants
Nicholas Kramer, Director of Technology at Perkowitz+Ruth Architects
Edward Tallmadge, Strategic Account Manager at U.S. CAD
The history:
• Tape measures, photographs, record drawings, hand held laser
• Static laser, on a tripod, scan, move, repeat
o Each scan takes 5-10 minutes
o Line of sight based
o High level of accuracy
o Reflective and black surfaces are challenges
o In one day a crew of two can make 50-70 scans
• Mobile scanner, auto mounted, uses GPS
o Less accurate than static
o Used for transportation projects
• Mobile interior, +/- 4” accuracy, very fast
• Air born LiDar, less accurate than other methods
Registration – a series of scans must be knit together, match corners that appear in adjacent scans, common physical targets
• Minimum: three common points
• Registration is bringing scans into alignment, a small drift…