Main point

Main point designated

• a point of the projection plane, see central projection # designations
• a point on a traffic route , see route (traffic route)
• a point on the axis of an optical system, see main plane (optics)
• in photogrammetry and remote sensing a point on the recording plane, see internal and external orientation
• Survey point, a point that geodesists use as a starting or destination point for surveys

This is a disambiguation page for differentiating between several terms identified with the same word.