Note
To simplify assessment of the match result, each group and each measurement are displayed in
a different color. This makes it easier to identify how well the measurements overlap in the
overlapping area.
By pressing <Space Bar> (if the cursor is in one of the two 3D views), you can toggle the mode
of operation for the two 3D views between point definition (cursor) and viewing mode (hand).
To synchronize the display selection for the two 3D views, activate the middle button
in the
3D Viewer Control
group.
You can access the surface matching parameters directly from the dialog by pressing the
button to the right of
Start matching
. The parameters for surface matching are described in
more detail in chapter 17.2.
11.3.2 Tolerance Based Matching
As opposed to global matching, tolerance based matching takes additional constraints into
account in the process. A threshold defines the maximum movement of a data set during
matching. Tolerance based matching helps to prevent global scaling errors or an uncontrolled
deformation of the object shape, and achieves a high global accuracy of the match result. To
execute tolerance based matching, choose
Edit
Matching
Tolerance based matching…
.
The following dialog appears (the dialog may take some time to open, depending on the
amount of data):