The Collaborative International Dictionary
Orthographic \Or`tho*graph"ic\, Orthographical \Or`tho*graph"ic*al\, a. [Cf. F. orthographique, L. orthographus, Gr. ?.]
Of or pertaining to orthography, or right spelling; also, correct in spelling; as, orthographical rules; the letter was orthographic.
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(Geom.) Of or pertaining to right lines or angles.
Orthographic projection or Orthogonal projection, that projection which is made by drawing lines, from every point to be projected, perpendicular to the plane of projection. Such a projection of the sphere represents its circles as seen in perspective by an eye supposed to be placed at an infinite distance, the plane of projection passing through the center of the sphere perpendicularly to the line of sight.
Orthogonal \Or*thog"o*nal\, a. [Cf. F. orthogonal.] Right-angled; rectangular; as, an orthogonal intersection of one curve with another.
Orthogonal projection. See under Orthographic.
Usage examples of "orthogonal projection".
She had been trained as an orthogonist at art school, and using orthogonal projection she could create figures on the walkways that would appear to be erect - amusing figures, dancing, walking, holding hands.