Projection Page

The Projection page lets you define the type of projection to map the data into screen coordinates.

• Cartesian is used for data expressed in Cartesian coordinates (x, y). The data are represented in a standard manner: the abscissa and ordinate scales representing the x- and y-coordinates, respectively, are orthogonal.

Example of a Cartesian Chart

• Polar is used for data expressed in polar coordinates (q, r). The data are represented in a circular way: the q values are mapped along a circular abscissa scale, while the r values are represented along a radial ordinate scale.

Example of a Polar Chart

The Projection page appears as follows:

Chart Inspector: Projection Page

Once you have selected the type of the projection to be applied, you can define:

• The orientation of the scales for a Cartesian projection.

• The orientation of the abscissa scale (clockwise or counterclockwise) for a polar projection.