Short description This LISP lets the user align Civil 3D pipes to chosen TIN surfaces and or profiles using elevation offsets, with a dialog that supports multi selection, live Apply preview and final OK or Cancel confirmation.

Sort / Purpose: Civil 3D utility to set pipe invert elevations from selected TIN Surfaces and/or Profiles, using separate elevation offsets for each source and a scrollable, filterable UI for many pipes. • Scope: Works with AeccDbPipe (model), pipe profile-views, TIN Surfaces and Profiles, using wildcard filters and “Apply” inside the dialog so you can tweak/preview without closing it. • Priority: For each pipe, it tries Profiles first, then falls back to Surfaces if no valid profile elevation is found at pipe ends.