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Which of the following is the correct way to describe a 'hole' in a 3D mesh?

easy📝 Factual Q3 of 15
3D Printing - STL and File Preparation
Which of the following is the correct way to describe a 'hole' in a 3D mesh?
AA face with zero area
BA vertex connected to only one edge
CA missing face that creates an open boundary
DAn edge shared by exactly two faces
Step-by-Step Solution
Solution:

  1. Step 1: Define what a hole means in mesh context

    A hole is an area where faces are missing, leaving an open boundary in the mesh.

  2. Step 2: Match the description to the options

    A missing face that creates an open boundary correctly describes a hole as a missing face causing an open boundary.

  3. Final Answer:

    A missing face that creates an open boundary -> Option C

  4. Quick Check:

    Hole = Missing face causing open boundary [OK]
Quick Trick: Holes are missing faces causing open boundaries [OK]
Common Mistakes:
MISTAKES
  • Confusing holes with zero-area faces
  • Thinking holes are isolated vertices

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