DOI Page / Citation link:
https://doi.org/10.11588/diglit.19949#0022
IS
THE VERTICAL LINE.
position in which its sides arc oblique to the plane of the
picture;—seen, in fact, from both points, under the same
circumstances in all respects, as regards surrounding
objects, except that the perpendicular distance of the
spectator from the base line B D, is much less in one
than in the other.
In Fig. 3, No. 1, the distance of the point of view, from
which the spectator sees the stone, is only half the length
of the base line B J), (that 18, of E C in Fig. 2).
In No. 2, the distance of the spectator is equal to the
entire length of B D, {%. c, of E C in Fig. 2). This
distance may, in particular cases, be made greater, but in
no case should it be less.
A slight glance at each will show how much more
satisfactory to the eye the drawing is in No. 2 than that
in No. 1 j although it is, in fact, in both cases strictly
accurate according to the distance adopted.
In both instances (Figs. 1 and 2), the centre C of the
picture is placed in the middle of the horizontal line
H H; but it may be placed somewhat either to the right
or left of that position, according as the sketeher may be
disposed to stand a little to the right or left of the
centre of the proposed view. These alterations of C will
of course modify the appearances of the objects, under
principles hereafter to be explained.
THE VERTICAL LINE.
position in which its sides arc oblique to the plane of the
picture;—seen, in fact, from both points, under the same
circumstances in all respects, as regards surrounding
objects, except that the perpendicular distance of the
spectator from the base line B D, is much less in one
than in the other.
In Fig. 3, No. 1, the distance of the point of view, from
which the spectator sees the stone, is only half the length
of the base line B J), (that 18, of E C in Fig. 2).
In No. 2, the distance of the spectator is equal to the
entire length of B D, {%. c, of E C in Fig. 2). This
distance may, in particular cases, be made greater, but in
no case should it be less.
A slight glance at each will show how much more
satisfactory to the eye the drawing is in No. 2 than that
in No. 1 j although it is, in fact, in both cases strictly
accurate according to the distance adopted.
In both instances (Figs. 1 and 2), the centre C of the
picture is placed in the middle of the horizontal line
H H; but it may be placed somewhat either to the right
or left of that position, according as the sketeher may be
disposed to stand a little to the right or left of the
centre of the proposed view. These alterations of C will
of course modify the appearances of the objects, under
principles hereafter to be explained.