ICHNOGRAPHY
, in Architecture, is a transverse or horizontal section of a building, exhibiting the plot of the whole edifice, and of the several rooms and apartments in any story; together with the thickness of the walls and partitions; the dimensions of the doors, windows, and chimneys; the projectures of the columns and piers, with every thing visible in such a section.
Ichnography, in Fortification, is the plan or representation of the length and breadth of a fortress; the distinct parts of which are marked out, either on the ground itself, or upon paper.
Ichnography, in Perspective, the view of any thing cut off by a plane parallel to the horizon, just by the base or bottom of it; being the same with what is otherwise called the plan, geometrical plan, or groundplot, of any thing, and is opposed to Orthography or Elevation.
