Point
A point indicates a certain place in space, a line, an intersection, or the center of something.
The blue point is set at the end of the tunnel as it appears to the human eye. This sidewalk covering tunnel was designed in a straight line so that people walking into it could see directly out the other side. Although point can be applied anywhere, this is a good example because from this perspective, the tunnel appears to end in a point.
Line
A line is a point that has been extended in a certain direction and length.
Line is utilized repeatedly in both this house and the picket fence around it. I chose to focus on the repeated parallel lines in the fence for my diagram, but also pointed out the parallel lines on the siding of the house, the tin roof, and the detail on the overhang.
Plane
A plane is a flat surface created by two parallel lines. It can be solid like a wall,
or implied between two columns or posts.
or implied between two columns or posts.
A basic plane is represented by the wall that juts out containing the fireplace. It is easy to show the outlines of the plane in this example. Two sets of parallel lines outline and contain this vertical rectangular plane.
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Volume
Volume is created when a plane is extended further to include a third dimension: depth.
The four places of these glass walls combine to make a voluminous room. Any room has volume, but this is a good example since you can see through to all of the sides and recognize the three dimensions of the space.
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