2004

Table Of Contents
Increase Performance with Large Xrefs | 697
Note Clipped external references are available only in drawings created with
AutoCAD Release 14 or later.
Spatial and layer indexes are best used in drawings that will be used as xrefs
in other drawings where demand loading is enabled. Drawings that are not
going to be used as xrefs will not benefit from layer and spatial indexing or
demand loading.
To save a drawing with layer and spatial indexes
1 From the File menu, choose Save As.
2 In the Save Drawing As dialog box, choose the Tools menu and then
choose Options.
3 In the Saveas Options dialog box, under Index Type, select Layer, Spatial,
or Layer & Spatial, and then choose OK.
Note If you are saving a partially open drawing that does not already
contain layer and spatial indexes, this option is disabled.
4 Choose Save.