MEASURING POINT METHOD
Constructing the P spective Grid
er
• Draw the horizon line (HL) and ground line (GL) at an
y
convenient scale. This scale need not be the same as
t he scale of the plan setup.
• At the same scale, transfer the positions of the m
ajor
left and right vanishing points (VPL and VPR) and the
left and right measuring points (MPL and MPR) from
the plan setup.
• Along GL, lay out equal increments of measurement to
scale.The unit of measurement typically is one foot;
we can use smaller or larger increments. however.
depending on the scale of the drawingand the amount
of detail desired in the perspective view.
• Establish the position of a vertical measuring line
(VML) from the plan setupand lay out t he same equ
al
increments of measuremen
t.
• From VPLand VPR draw baselines through t he
intersection of VML and GL.
11 0 I ARCH ITECTU L G HI C
RA RAP S
\:
.._______ Transfer theunits of measurements onGLto the left
baseline in perspect ive by drawing lines to MPR.
Tra nsfer scalemeasurements onGL to t he right
baselineb draw li nes to MPL. These are
y
ing
construction lines used only to transfer scaled
measurements along GL to the m horizontal
ajor
baselines in perspective.
• Afractiona l measuring point can be used to reduce the
length of measu rements along GL. For example. you
can use 1 MPR to transfer a 5-foot m
/z
easurement t o
apoint 10 feet beyon the picture plane along the left
d
baseline.