ZScan User Guide
7
The user can change the coordinates system either automatically with the auto-
detected reference model, or manually by creating another reference with the Add
Reference tool. This wizard allows the creation of references from existing features in the
scan.
Each reference available in the selected scan can be renamed, deleted or set to be
used as the origin of a new reference frame. Exported features or facets will then be
located in that reference frame.
Surface and Volume
Scanning with the ZScanner 800 takes place in a virtual
cube called Scanning Volume, which is represented by a
bounding box on the screen. In order to be represented,
the object has to be located in that volume. It is possible
to adjust the size and position of that volume through the
Surface view. It is also possible to set the resolution of the
volume in order to match the level of detail needed on
the object scanned.
Facets, Edition and Multi-resolution
Facets represent the final output of the scanner which is
structured as a continuous mesh of triangles. Contrary to
many scanners, the ZScanner 800 does not rely on a point
cloud that is later triangulated but generates directly a
surface.
Prior to generating the final result, it is possible to edit the
scan inside ZScan. However, ZScan being mainly an
acquisition software, the editing tools are not meant to
replace those offered in post-processing software, but are
rather aimed to improve the facets to produce a cleaner
result.
The software allows to remove facets and to increase or decrease resolution on selected
parts of the object. For example, the user may want to get a higher resolution on a
specific detail on the surface to see its edges more cleanly, or remove triangles
belonging to the background. Those deleted facets are transferred into the Recycle Bin
and can always be restored later.