DOI Page / Citation link:
https://doi.org/10.11588/diglit.62828#0388
( 30° )
the diagonals KI, FO. From 4 draw a parallel line, cutting
the diagonals at 8, 5, and from 5 draw a line to s, cutting at 6;
then will be projected each miter of the plinth, and alfo the fize
of the dado will be determined at the fame time. Therefore
from 8, 5, and 6, raife perpendiculars at pleafure, which will
ferve both for the angles of the dado and the plinth of the bafe.
From 0 draw a line to r, which will cut the parallel produced
from 8 at 5, and will give an internal miter at 5, K; raife per-
pendiculars from 5, K at pleafure. From c and 12 on the pro-
file, draw lines to r, cutting the perpendiculars raifed from 5, K
at /, m, which will give the correfpondent miter to 5, K. Draw
the projecting diagonals of each moulding on the profile, as 9,
10, 11, 12, and draw ab\ from all which points in the mould-
ings draw vifuals to r, which will feverally cut the aforefaid
perpendiculars at q,p, n, m, r. Draw then the line m nypq, whic
will be the diagonal lines of the internal miters. Now draw
parallels from p q, which will cut the perpendiculars at 13, 14,
17. From 14, 17, draw vifuals to i, which will cut at 15, 16;
and it is evident that by thefe the three miter lines will be cor-
rectly determined. From each angle of the mouldings on the
profile draw lines to 1, and afterwards obferve how the profiles
are cut by each projecting diagonal, to which make every per-
fpeCtive miter agree. For inftance, draw a line from the
point where the diagonal cuts the upper fquare of the ogee, till
it cut the miter line at Z; from t raife a perpendicular fhewn by
the
the diagonals KI, FO. From 4 draw a parallel line, cutting
the diagonals at 8, 5, and from 5 draw a line to s, cutting at 6;
then will be projected each miter of the plinth, and alfo the fize
of the dado will be determined at the fame time. Therefore
from 8, 5, and 6, raife perpendiculars at pleafure, which will
ferve both for the angles of the dado and the plinth of the bafe.
From 0 draw a line to r, which will cut the parallel produced
from 8 at 5, and will give an internal miter at 5, K; raife per-
pendiculars from 5, K at pleafure. From c and 12 on the pro-
file, draw lines to r, cutting the perpendiculars raifed from 5, K
at /, m, which will give the correfpondent miter to 5, K. Draw
the projecting diagonals of each moulding on the profile, as 9,
10, 11, 12, and draw ab\ from all which points in the mould-
ings draw vifuals to r, which will feverally cut the aforefaid
perpendiculars at q,p, n, m, r. Draw then the line m nypq, whic
will be the diagonal lines of the internal miters. Now draw
parallels from p q, which will cut the perpendiculars at 13, 14,
17. From 14, 17, draw vifuals to i, which will cut at 15, 16;
and it is evident that by thefe the three miter lines will be cor-
rectly determined. From each angle of the mouldings on the
profile draw lines to 1, and afterwards obferve how the profiles
are cut by each projecting diagonal, to which make every per-
fpeCtive miter agree. For inftance, draw a line from the
point where the diagonal cuts the upper fquare of the ogee, till
it cut the miter line at Z; from t raife a perpendicular fhewn by
the