Superlesson
Project 2-3
Geometry
Chapter 2, The Foundations of Geometry
There are many different techniques artists use to give a realistic two-dimensional image of a three-dimensional object or scene. Two techniques are perspective drawing and orthographic drawing.
Part A, Perspective Drawing
1. Perspective drawings help the observer to visualize depth in a two-dimensional picture. In a one-point perspective drawing, lines intersect at a vanishing point. Read the discussion about Perspective drawing at this site.
a. At the end of this Web page, copy or print out the picture of the hallway with a single window.
b. Draw in two more windows further down the hallway using what you have learned about one-point perspective.
Part B, Orthographic and Isometric Drawing
You've looked at how perspective drawing gives depth to a picture. Now, you will see how you can use orthographic drawings to give accurate pictures of objects from different views.
2. Look at a picture of the Leaning Tower of Pisa. Sketch three views of the Tower: a front view (in which you can see the tilt in the building), a side view (in which you cannot see the tilt), and a top view.
Part D, Making Connections
3. Explain when an artist would produce a perspective drawing and when
she/he would produce an orthographic drawing.