Traditional Culture Encyclopedia - Photography and portraiture - What should I pay attention to when drawing the ceiling layout?

What should I pay attention to when drawing the ceiling layout?

1, ceiling building plane, with descending floors and local sections, and the ceiling surface elevation of each floor shall be indicated.

2, high-end to draw details.

3, hanger and keel layout, and indicate the hanger and the main and secondary keel specifications.

4, building (non-dynamic lighting requirements) have decorative requirements of lamps and lanterns, to indicate the location of lamps and lanterns. Variety, specification and model.