Scanning 1000 year old Hohokam petroglyphs - note the Phoenix skyline in the background
On December 28 my friend Scott Cedarleaf with Plowman Craven Associates asked me to meet him and representatives from the Gila River Indian Community, the City of Phoenix, Arizona State University and the University of Arizona at South Mountain Park. The purpose of the field trip was to demonstrate the combination of 3D laser scanning and Autodesk software.
Similar to my work on Easter Island this trip had an archaeological focus. The attendees were all very curious to see how laser scanning and the resulting 3D models could help them in their work and research.
As expected once the group got to see the point clouds generated by the scanner the conversations about how the technology could be applied heated up.
If you too are curious about how to work with laser scanning data and Civil 3D check out CloudCUBE from VirtualGEO.
If you are really serious about laser scanning I recommend that you attend the SPAR conference in Houston. I'll see you there!
There are many theories to explain their purpose, depending on their location, age, and the type of image. Some petroglyphs are thought to be astronomical markers, maps, and other forms of symbolic communication, including a form of "pre-writing". Petroglyph maps may show trails, symbols communicating time and distances traveled, as well as the local terrain in the form of rivers, landforms and other geographic features.
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