# Axis Types

In Grapher, two axes are automatically created for each 2D graph, 3D graph, and XY contour map. Three axes are created for 3D XYZ graphs, XZ contour maps, and surface maps. Axes are named according to the type of axis and the order in which they are created in the graph. For example, a line/scatter plot initially contains two axes: X Axis 1 and Y Axis 1. If X axes are added to the graph, they are sequentially numbered (X Axis 2, X Axis 3, etc.). 3D XYZ graphs, XZ contour maps, and surface maps have a Z axis in addition to the X axis and Y axis.

## Axis Limits

Axis limits approximate the limits of the data file used to create the graph, depending on the tick mark spacing. The tick mark spacing is automatically scaled so a reasonable number of tick marks are drawn along each axis. Tick mark spacing and label format parameters can be independently specified for each axis on the graph. Tick labels and axis titles can also be moved with the Graph Tools | Plot Tools | Move Labels command.

## Types of Axes

There are four types of axes in Grapher: standard, angle, box-whisker, and stiff X axes.

### Standard Axes

Standard axes are included in the following plots:

Basic Graphs |
Bar Graphs |
Polar Graphs (radius axis) |
Ternary Graphs |
Specialty Graphs |
Statistical Graphs |
Contour Surface Graphs |

Radar (all axes) |
2D Stiff (Y axis) |

### Angle Axes

Angle axes are included in the following plots:

Polar Graphs |

### Box Plot Axes

Box plot axes are included in box plots and in notched box plots.

### Stiff X Axes

Stiff X axes are included in stiff plots.