If you have a part with interfering bodies or an assembly with interfere hidden lines removed. You might also want to see a drawing for a part or assembly with interfering parts or components, correctly with hidden lines removed.
Starting with Creo 7.0, you can use the below config option to accurately remove the Hidden Lines
hlr_adv_interference_check_prt—Set to yes to accurately remove hidden lines for the intersected bodies in a part. The default is yes
hlr_adv_interference_check_asm—Set to yes to accurately remove hidden lines for the intersected bodies and components. The default is no.
Drawings rely on the same configuration options to determine if hidden lines are removed accurately, depending on whether the drawing is a view of a part or an assembly.To set the accurate removal of hidden lines you can also click, File > Options > Entity Display and select the Accurate removal of hidden lines in the part mode or Accurate removal of hidden lines in the assembly mode, check box.
Note: HLR mode can impact performance
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