2000
AutoCAD 2000 Preview Guide Page 11 00000-005000-5513
UCS per Viewport – Viewport Independent User Coordinate Systems
Both new and experienced users will find it much easier to work in both 2D and 3D with the new UCS
per Viewport feature. The User Coordinate System (UCS) can now be defined on a per viewport basis.
This enables you to change from one viewport or view to another without having to reset the UCS. With
the UCS per Viewport feature, the UCS can be set to automatically align with your current view or
viewport, thus saving time and increasing efficiency. Predefined orthographic UCSs of front, top, and side
views are provided and can be created with the new Viewports dialog.
UCS per Viewport - (clockwise from upper left) Right-side, Top, Front
In-Place Reference and Block Editing
With AutoCAD 2000’s new In-Place Reference and Block Editing feature, which includes a Reference
Edit dialog and Refedit toolbar, you have a powerful, timesaving enhancement that enables you to edit
reference geometry and the current drawing at the same time. Use it to select all or a portion of a block or
external reference and edit it from within the context of the parent drawing, i.e., in place. Selected objects
in Xrefs and Blocks then become available for editing. All other objects visually dim in display intensity,
providing an easier environment for editing your selected objects. This intuitive tool yields more accurate
results significantly increasing your drawing efficiency. You can either save the changes back to the
reference file or discard them. You also have the capability to copy objects in the reference drawing into
the parent drawing as well as to copy objects from the parent drawing into the external reference.
An additional benefit of this feature is the ability to edit the definition of block without exploding it. With
Refedit, you can select a block within a drawing, edit its definition, and save it. Once you have saved your
changes, all instances of that block in the drawing file will automatically be updated with your change.
In-Place Reference Editing