How can I know if a Entity should be presented?

[drorreuven31]

i'm opening a dxf file in "abviewer" and see some entities, but in the files scheme I see a few more but they are not presented in the screen. then, when i read the file with netDxf i see that "hidden" entities and i couldn't find the right property that says if they should be presented or not. (not visibility)

[haplokuon]

Under normal circumstances the visibility of an entity is controlled by the layer where it belongs.