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The use
of high-density 3D scanning surveys is a relatively new approach for
heritage preservation. Professionals from the cultural, artistic,
and archeological fields now benefit from PolyWorks’ tools for
various applications, such as:
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Creating polygonal models
for visualization, file sharing, and public libraries |
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Archiving for reconstruction |
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Monitoring deterioration
over time |
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Exporting features to downstream
survey software suites |
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Extracting measurements directly
on point clouds |
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PolyWorks combines point matching and
a powerful best-fit alignment method to align scans using the
geometrical shape of the scene. |
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No field targets are required for the
alignment. However, markers can be used in the scene to validate
the alignment results. |
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| Elsinore Tower - Eden Park
- Cincinnati, Ohio USA |
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| PolyWorks offers an automatic meshing technology
that processes all data points, without sacrificing any points through
uncontrolled subsampling. PolyWorks can efficiently handle up to 100 million
points. |
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| Chiang Kai Shek Memorial Hall, Taipei,
Taiwan |
Point cloud model |
Polygonal model |
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PolyWorks provides
a wide array of polygon editing tools that optimize the polygonal
model and correct problems caused by the limitations of 3D scanners,
including:
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Hole filling |
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Edge and Corner reconstruction |
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Smoothing |
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Measurements
Various measurements can be taken directly on point clouds or
on polygonal models, such as:
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Distances (horizontal, vertical, slope) |
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Angles (bearing, azimuth) |
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Radii |
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Volumes |
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Features which can be extracted
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Cross-sections (profiles, contours, and footprints) |
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Sharp edges
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Feature lines
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Colored boundaries |
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Export
These extracted elements can then be directly exported to DXF
and IGES and/or imported into MicroStation V7 and V8. |
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Surveyors can visualize colored point clouds and colored
polygonal models of scanned objects, and make them available for inventory
databases and public libraries |
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Surveyors can easily create 3D animated videos (in AVI), or
directly visualize their polygonal models with PolyWorks’ free viewer
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Persepolis, Ancient Capital of Persia– Achaemenid
Empire
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| The artist’s original work is digitized using a
high-density point cloud digitizer. |
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The various scans are loaded into PolyWorks and are
accurately aligned in a single 3D point cloud model. |
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The 3D point cloud model is meshed to create a highly accurate
polygonal model. |
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The polygonal file is edited, rescaled, and directly exported as
a STL file to the machining equipment (CAM).
The model is machined in foam from which a casting will be created.
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Dance at Bougival, Pierre Renoir 1883 |
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