9.5.2

1140 • CHAPTER 23
STRUCTURE MANAGER • 1141
To import a point cloud
 Choose Object > Polygon Object to create an empty Polygon object.
 In the Structure manager, choose Mode > Points (to be able to import points,
you must rst be in points mode).
 In the Structure manager, choose File > Import ASCII Data and use the system
le selector that opens to select the desired ASCII le.
Point clouds are invisible when rendered since they do not include polygons.
To create surfaces that you can see, connect the cloud’s points together using
the Bridge tool.
Export ASCII Data
You can export the data shown in the Structure manager as an ASCII le — perhaps for export to
another 3D application. In Point mode, the X, Y and Z coordinates of each point are exported. If the
selected object is a Bezier spline, its tangent values are exported also. In Polygon mode, the edge
data for each polygon is exported. In UVW mode, the UVW coordinates of each polygon (dened so
far) are exported.
Close
Closes the Structure manager.
Edit Menu
Undo, Redo
Undo undoes the last change to the object’s structure. The previous values are restored to the cells.
You can set the undo level (i.e. how many changes are remembered and can be undone) on the
Document page of the preferences. Redo undoes (i.e. cancels) the last undo. The redo level is the same
as the undo level set on the Document page.
Cut, Copy, Paste, Delete
Cut removes the selected row(s) from the table and copies this to the clipboard. Copy copies the
selected row(s) from the table into the clipboard, without deletion. Paste inserts any data copied or cut
into the clipboard back into the table, above the selection frame. Delete deletes the selected rows.