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548 Chapter 20: Managing Scenes and Projects
Inter face
Geometry panel: Scale group
Model S ize—Incoming geometry is evaluated
to determine its bounding box size. This field
displays the scene extents based on three factors:
• Incoming File Units
•SystemUnitsin3dsMax
• Display Units in 3ds Max
Note: Ifthesizecannotbedetermined,thefield
w i ll show (Drawing Extents Not Known).
Rescale—Allows rescaling of the incoming
geometry by a factor corresponding to the most
commonunittypeused.Theimporterwilltryto
detect the units of the DXF file be ing imported,
compare those units with the 3ds Max system
units, and provide the appropriate conversion
factor.
For example: if a DXF file is saved using millimeter
unitsand3dsMaxhasitsSystemUnitssetto1.0
inches, the AutoCAD DWG/DXF Import Options
dialog w ill automatically be set with Rescale turned
on and the Incoming File Units set to millimeters.
Note: Iftheunitsareunspecifiedinthedrawing,
the list will appear blank. In this case, if the
Import button is pressed and the Rescale toggle
is turned on, you are prompted to select a value
for Incoming File Units, and returned to the
AutoCAD DWG/DXF Import Options dialog.
Incoming File Units—A drop down menu where
you can set t he scene units.
Geometry panel: Geometry Options group
Co mbine Objects by L ayer—Names each imported
object based on the AutoCAD object’s layer. The
imported objec t name has a “Layer:” prefix and
is followed by the layer name. For example, an
AutoCAD object on the layer WALLS becomes
Layer:Walls.
Create One Scene Object For Each ADT
Object—
Architectural Desktop (ADT) objects
are imported as a single object instead of being
separated into t heir constituent components. This
means that if you import an ADT door object, the
door is represented as one object instead of three.
Turningonthisswitchmakeimportingfasterand
the scene size is s maller.
Note: This switch presents several modeling
concerns that you need to be aware of:
• Material assignments from ADT are not
translated during the import process..
• If you want to assign materials to these objects,
you’ll have to use Multi/Sub-Object materials.