AutoCAD hatching — visibility requirement When applying a hatch pattern to fill an area in AutoCAD, what must the drafter ensure before picking points to hatch the region accurately?

Introduction / Context:
AutoCAD's HATCH command finds closed boundaries from a pick point. If the extents are not fully visible or the boundary is not truly closed, the hatch may spill outside or fail to generate, leading to errors in printed drawings.

Given Data / Assumptions:

• The drafter will use pick-point hatching rather than selecting objects to define a boundary.
• Boundary detection relies on visible, closed loops.
• Standard plotting layers and scales are in use.

Concept / Approach:
Ensuring the entire boundary is visible allows the algorithm to trace the loop correctly. Zooming out or using a window that clearly includes the complete region prevents stray openings and missed edges from confusing the hatch solver.

Step-by-Step Solution:
Confirm all edges form a closed loop (no gaps).Zoom/pan so the full boundary is on-screen.Issue HATCH, choose pattern/scale/angle.Pick inside the boundary and preview; adjust if necessary.

Verification / Alternative check:
Alternatively, use the “Select boundary objects” option to explicitly choose loops. Still, visibility helps confirm closure before committing.

Why Other Options Are Wrong:

• Ortho on: constrains cursor to 0/90 degrees; irrelevant to boundary finding.
• ISO grid off: cosmetic; not required for hatching.
• Defpoints layer: non-plot layer for dimensions; not appropriate for hatch.

Common Pitfalls:
Tiny gaps in polylines, overlapping duplicates, or frozen layers causing apparent but incomplete boundaries.

Final Answer:
see the entire bounding area to hatch