Vanishing point of multipoint perspective, and historian Kirsti Andersen compiled these observations. She notes, in terms of projective geometry, the vanishing point is the image of the point at infinity associated with , as the sightline from through the vanishing point is parallel to . As a vanishing point originates in a line, so a vanishing line originates in a plane that is not parallel to the picture . Given the eye point , and the plane parallel to and lying on , then the vanishing line of is . For example, when is the ground plane and is the horizon plane,
To the Point of producers and engineers, thanking the Coltrane family, and signing off with, "This has been "To the Point" from Public Radio International." When major national or international events occur, the show will occasionally scrap its pre-scheduled main segment in favor of bringing in commentators on the breaking stories. Though the live program beams by satellite to carrier stations at 11 am, KCRW airs it taped at 1pm, following "The World". To the Point To the Point was an hour-long public affairs radio program co-produced by KCRW in Santa Monica, California and Public Radio International. The program originated at KCRW at