When you perform surface edits with TIN lines, Points, and Contours displayed, what happens?

When you perform surface edits with TIN lines, Points, and Contours displayed, what happens?

• A. The effect is seen immediately
• B. The effect is seen after finishing
• C. There is no visible change
• D. The change is delayed until next session

Answer: (D)

When editing a surface in Civil 3D, the work you do is staged inside the edit session. Even with TIN lines, Points, and Contours displayed, the actual changes aren’t written to the surface data until you finish the editing. You can see a live edit preview in the viewport, but the final modification is only committed when you exit the edit mode, which often means it won’t be reflected until the next session or the next time you reopen the surface. This is why the change is described as delayed until finishing (and effectively visible in the next session).

When editing a surface in Civil 3D, the work you do is staged inside the edit session. Even with TIN lines, Points, and Contours displayed, the actual changes aren’t written to the surface data until you finish the editing. You can see a live edit preview in the viewport, but the final modification is only committed when you exit the edit mode, which often means it won’t be reflected until the next session or the next time you reopen the surface. This is why the change is described as delayed until finishing (and effectively visible in the next session).