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1/ Command :

• ATR

2/ Description :
This tool automatically trims and removes all objects that are outside of a　selected closed polyline boundary, leaving only the objects inside.

• Smart Filtering: It specifically preserves blocks, text, and dimension objects that overlap the boundary (they are not trimmed or　deleted).

• Caution: Be aware that this command　deletes all other objects outside the　selected area immediately.

3/ How to Use :

1. Type atr in the command line and press Enter.

2. Select the Closed Polyline that defines your boundary.

3. All objects outside this boundary are automatically　deleted, while objects inside (and overlapping special objects) are kept.