| Problem | Solution |
|---------|----------|
| Pattern not showing | Check .pat syntax – no spaces at line starts. |
| Gaps between chevrons | Reduce dash length/gap sum to exactly unit width. |
| Chevrons not symmetric | Verify line offsets: first line starts at 0, second at half repeat. |
| Hatch fills entire shape instead of chevron lines | Use HPGAPTOL if boundary is slightly open; also check HPSCALE. |
You can modify the code for different effects: autocad chevron hatch
| Problem | Solution |
| :--- | :--- |
| Chevrons appear as solid black | Scale is too small. Increase the hatch scale (e.g., from 1 to 20). |
| Chevrons are not visible at all | The hatch origin is offset. Use HATCHORIGIN to reset or pick a new origin point. |
| The pattern looks like straight lines | You may have selected a diagonal pattern (e.g., ANSI31). Verify you chose AR-CONC or a true chevron definition. |
| Chevrons point the wrong way | Change the Angle property in the Properties panel (e.g., add 180° to reverse direction). | | Problem | Solution | |---------|----------| | Pattern