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Direct Dimensions, Inc. in conjunction
with John Milner Associates used Surphaser® 25HSX to scan the historic
Madison Avenue entrance archway to the Druid
Hill Park
in Baltimore, USA. The 3D scan data will be
used to restore the Arch as part of an on-going preservation effort.
About the Arch:
• The park itself is one of the three oldest landscaped urban parks
in the United States (along with Central Park and Fairmount Park in
Philadelphia) and is on the list of National Register of Historic Places.
• The entrance arch was completed in 1868 and served as the main
entrance to the park until it was separated from the park proper by the
completion of Druid Park Lake
Drive.
• In 1961 the arches, declared to be a traffic hazard, were almost
torn down. $14,000 dollars were raised for the preservation of the arches
and demolition was avoided.
• Almost 50 years later the restoration efforts are finally
beginning.
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Scanning:
Model used: Surphaser®* 25HSX IR_X
23 scans
Total scanning time: 7.5 hours
Post-processing:
Cleaning and alignment in PolyWorks®: 2 days
Basic modeling into a 3D CAD model using Rhinoceros® and the Pointools for
Rhino™ plug-in: 3 days
Images in Druid Hill
case study are courtesy of Direct Dimensions, Inc.
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