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 Week
Seven Lecture: Two-Point Perspective Drawing
 Return
to Classroom
It is a necessity
that you read and follow all instructions throughout the Lecture.
Lectures are designed with interactivity, to aid in the learning
process. Often times the lectures will include tips for properly
completing assignments. Be sure to read all information, view all
Audio and Video files and complete all practicals associated with
each lecture.
Overview
Two-Point Perspective Drawing
Recap
 Overview
Before we take
the Final Exam there is one more skill we want to cover - two-point
perspective drawing. Two point perspective drawings are generally
used for exterior views of buildings. The main difference between
one and two point perspectives is the number of vanishing points.
Yes, we are going to have two vanishing points this time.
We are not going
to follow the Ching book for two-point perspective. We will use
a method that I find to be a little simpler to follow. It is referred
to as the common method and it is the method that I learned in Architecture
School.
I would suggest
you print this lecture and keep it for reference when you want to
construct a two-point perspective. After you do several drawings
you will have the method committed to memory but I find at first
you will need to have instructions to reference back to.
Two-Point
Perspective Drawing
The subject
of our two-point perspective drawing is going to be a 10' high by
5' wide monolithic block of limestone with a grid etched on it.
It is a sculpture that will be used in a downtown plaza.
Assignment
7 Tips:
First draw the top view of the block of limestone.
(Insert
block2)
Next rotate
the plan 30 degree. Use your 30/60 triangle to help you line this
up. Draw the picture plane across the the bottom corner of the
plan.
(Insert
block2a)
Find the
Station Point. (Use the 90 degree angle of your 30/60 triangle
and find where
the viewer is standing.)
(Insert
block2b)
Move to the
bottom section of the paper and draw a horizontal line for the
Ground Line (GL). Draw the Horizon Line (HL) 5'-0" above
the Ground line.
(Insert
block2c)
Find the
Vanishing Point Right and the Vanishing Point Left. Draw a line
from the Picture Plane to the Horizon Line from the point where
the cone of vision hits the Picture Plane.
(Insert
block2d)
Draw lines
from the two corners to the SP.
(Insert
block2e)
Where the
lines from the corner cross the PP draw a vertical line to the
GL. These are the vertical edges of the block. The middle line
is the Measure Line because that
is where the block touches the PP.
(Insert
block2f)
Find the
top of the block. Begin at the GL and measure up 10'-0" which
is the height of the block of limestone. Remember to measure along
the Measure Line (ML). Next draw a lines from the VPR and VPL
to the 10'-0" mark. Draw lines from the intersection of ML
with the GL back to the vanishing points.
(Insert
block2g)
Put a new
sheet of paper on top of that drawing. Trace the edges of the
block.
(Insert
blockh)
Draw the
rest of the vertical lines. Draw a line to the station point from
each grid line. Draw a vertical line from the point that those
lines intersect the picture plane.
(Insert
block2i)
Mark off
the grid for the horizontal lines on the block. Remember to measure
along the ML at 1' increments.
(Insert
block2j)
Draw
the horizontal grid lines. Draw a line from each mark to the VPL
and VPR.
(Insert
block2k)
View the
following image—your finished perspective should look the
same.
(Insert
block2l)
Now that we
have the block drawing complete lets finish this drawing up. You
should put a new sheet of vellum on top of the 2 point perspective
drawing that you just constructed. The finished 2 point perspective
for Assignment 7 should have the correct line weights. Remember
that this is a 3D drawing and the surface rules apply. If you
need help, return to the instructions for Line Weights.
View the
following image—this the finished drawing without the correct
line weights, I want to see you figure those out yourself. Be
sure to put the title and border on the drawing. Label this drawing
Two Point Perspective, Assignment 7.
(Insert
2 point)
Have
Questions?
If
you have questions regarding any of the material covered in this
section, visit the "Week Seven: Two-Point Perspective
Drawing" Discussion Forum. The forum can be accessed
by clicking on the "Activate Course WebCT Account" link
located on the course "Classroom" page. Once inside
WebCT's discussion board, post questions and/or comments under
the appropriate forum.
Recap
Well that's
it for Architecture 109. The goals of the class were for the student
to
Master:
Architectural
Lettering
Lines
Scale
Drawing Floor Plans
Orthographic Projection
Oblique Drawings
Introduction
to:
Dimensions
One point perspective
Two Point Perspectives
I hope that
we have all achieved these goals and are ready for our next class.
Good Luck.
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