orthogonal projection

noun

1. engineering the method used in engineering drawing of projecting views of the object being described, such as plan, elevation, side view, etc, at right angles to each other

Example Sentences

This last proposition may be stated in the form:—“The orthogonal projection of a circle is an ellipse”; and it permits the ready deduction of many properties of the ellipse from the circle.

From Project Gutenberg

The area of the ellipse is πab, where a, b are the semi-axes; this result may be deduced by regarding the ellipse as the orthogonal projection of a circle, or by means of the calculus.

From Project Gutenberg