PERSPECTIVE FIVE - WESTERN RAILWAY
TIME:
Allow 40min
Aim:
To create a perspective grid using a single measurement and
three vanishing points. This lesson is to consolidate and further
the notion of perspective 'scale'. That is, as things of equal size
recede they appear smaller. This time we will use the CVP and a
familiar and logical structure, a railway line.
Materials:
The sketch pad,
HB pencil, ruler.
Construct margin and title box then:
a) Construct the same light lines as in
stage a, b, c, d, of the previous lesson until we get the lines
shown above.
b) This time we firm in the 'diagonals'
which become railway line 'sleepers'. Notice here we use a more
simplified method of construction.
c) Keep adding sleepers.
d) After the student has completed the
drawing to the stage above ask:
What shall we call the line that joins LVP, RVP and CVP? (answer
'horizon line').
How wide are railway tracks? (remember the old movies of people
tied to railway lines? - answer about 5feet). To know exactly the
distance and why click here.
If the distance between the sleepers is 5 feet what is the distance
between the second add fourth sleepers?
e) Add the extra light lines on the ground
(two horizontal and three to the CVP). We are going to build a station
about 30mm (1,1/4") from track 60mm wide.
f) Add the vertical lines 50mm (2") high
and join to CVP
g) Firm in the lines as shown and ask:
How high is the building? The student should measure the width of
the tracks on the line directly opposite the front edge of the station
and apply that 'scale' to the building's height. Objects an equal
distance away from the 'observer' are subject to the same measurements
of 'scale ' at that distance. In this drawing the scale is discovered
by knowing the width of the track at that distance.
h) Add the telegraph lines and poles and
have the student determine their height and distance apart.
Clean up and print in the title as shown.
The advanced students can add three 12 foot cacti at various locations
in the landscape.
Home work:
Complete the drawing adding a roof on the station, cactus, hills
, train, and birds etc.
Press here to see a master work using the CVP (central
vanishing point) perspective.
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