Other Names: Mapping diagrams are also described as function diagrams, arrow diagrams, dynagraphs, parallel coordinate graphs, or cographs. They have also been connected in discussions to nomograms.
Conventions: When the axes are displayed
vertically, the axis on the left represents the source
line ( "the X axis") and the axis on the right represents the
target line ("the Y axis").
Both lines are oriented with the larger numbers higher on the
axes.
When the axes are displayed horizontally, the axis on the
top represents the source line ( "the X axis") and the axis on
the bottom represents the target line( "the Y axis").
Both lines are oriented with the larger numbers further to the
right. In some uses the representation is reversed with the
bottom line representing the source and the top line representing the
target.
In this resource, mapping diagrams will be displayed
vertically.