Glossary#

Auxilary projections#

Necessary extra geometry

Axonometric picture plane#

Our drawing space.

Axonometry by intersection#

A system to tilt coordinate planes into the axonometric picture plane and from the three views build an image in the axonometric picture plane.

Coordinate plane#

The orthometric planes in space.

Parallel projection#
Oblique projection#

General definition of projection system.

Reference plane#

Titlted coordinate plane.

Right-handed coordinate system#

CG convention to order X, Y and Z axes counter-clockwise.

Tilt#

Operation in descriptive geometry to roatate a plane around a given hinge.

Trihedron#

The traces of coordinate planes.

View plane coordinate system#

In CG, the coordinate system of the visual part of the projection plane.

Viewing system#

In CG, the overall way of displaying the three-dimensional environment on a tow-dimensional computer screen.

World coordinate space#

In CG, the three-dimensional environment.