One Hollow Tube · Section Hatching

SUBJECT
Show one short hollow tube with a clean, flat cut end. Its continuous outer wall surrounds one open bore, and the visible annular cut face connects the outer and inner boundaries.

COMPOSITION
Use a three-quarter view with the open cut end facing image-left and slightly toward the viewer; the tube body recedes toward image-upper-right. Keep the entire tube visible against a plain background.

STYLE GUIDE
1. Shape & line
Draw the cut end as two nested ellipses joined by an annular face, and extend their contours into a consistent cylindrical body. Keep the outer silhouette firm and the interior boundary slightly lighter so the opening remains readable.

2. Color & light
Use pale blue-gray for the exterior, near-white for the cut face, and a darker muted blue inside the bore. Place the soft light at image-upper-left, allowing the interior to darken toward image-upper-right without obscuring its boundary.

3. Texture & material
Fill only the annular cut face with evenly spaced, thin parallel strokes running from image-lower-left to image-upper-right. Clip every stroke at both ellipse boundaries; leave the bore empty of hatching and the exterior smooth so the marks identify exposed solid material.

4. Composition
Make the open end large enough for the hatched ring and clear central opening to read immediately. Center the tube with generous surrounding space, keep its far end subordinate, and use a small soft grounding shadow beneath the body.

PRIORITY
Preserve the requested identity, count, action, composition and output settings. Apply the style rules within those constraints; a style reference must not replace the subject or layout. Within the style: Prioritize the clear separation of hatched solid wall, open bore, and smooth exterior.

AVOID
Avoid hatching across the opening or turning the section marks into surface decoration.

OUTPUT
Create one square illustration with no text, labels, dimensions, symbols, or watermark.

SELF-CHECK
Check that every hatch stroke stays within the cut ring and the bore reads as an open cavity.