What is the projection of a point?

A projection is the transformation of points and lines in one plane onto another plane by connecting corresponding points on the two planes with parallel lines.

What is the equation of XY plane?

The xy-plane contains the x- and y-axes and its equation is z = 0, the xz-plane contains the x- and z-axes and its equation is y = 0, The yz-plane contains the y- and z-axes and its equation is x = 0. These three coordinate planes divide space into eight parts called octants.

What is the projection of a plane?

A projection plane, or plane of projection, is a type of view in which graphical projections form an object intersect. Projection planes are used often in descriptive geometry and graphical representation. A picture plane in perspective drawing is a type of projection plane.

What are XYZ coordinates called?

Cartesian coordinates of the plane The origin is the intersection of the x and y-axes. The Cartesian coordinates of a point in the plane are written as (x,y). The first number x is called the x-coordinate (or x-component), as it is the signed distance from the origin in the direction along the x-axis.

What is the XZ plane?

x-z Plane. The plane formed by the x-axis and the z-axis. See also. x-y plane, y-z plane.

What are the 3 planes of projection?

Figure 5-4 shows the three principal (or primary) planes of projection, known as the VERTICAL, HORIZONTAL, and PROFILE PLANES. The angles formed between the horizontal and the vertical planes are called the FIRST, SECOND, THIRD, and FOURTH ANGLES, as indicated in the figure.

What is the plane view?

A plan view is an orthographic projection of a 3-dimensional object from the position of a horizontal plane through the object. In other words, a plan is a section viewed from the top. Basically, a plan view is just another name for the top view of a 3D object.

What is the projection of A on B?

The scalar projection a on b is a scalar which has a negative sign if 90 degrees < θ ≤ 180 degrees. It coincides with the length ‖c‖ of the vector projection if the angle is smaller than 90°.