- projecting line
- projecting plane of a straight line
- projecting relative line
- projection
- projection
- projection
- projection
- projection axis
- projection center
- projection-coincidence nature of plane edge view
- projection-coincidence point
- projection from a point to a straight line
- projection from a point to a straight line
- projection from a segment to a straight line
- projection function
- projection line
- projection mapping
- projection matrix
- projection method
- projection of a vector
- projection of bundle
- projection of circle
- projection of fractal
- projection of point
- projection of two intersecting straight lines