| Building a Chart > Setting Axis Bounds |
The chart usually recalculates and redraws the axes whenever data changes. You can fix the bounds of any axis so that it is not recalculated when data changes. For the X- and Y-axes, you can also frame a portion of data by setting axis bounds inside the data bounds.
Set the Axis Minimum and Maximum
Use the Axes Min and Max properties to fix the minimum or maximum axis extent at a particular value. Their IsDefault properties allow the chart to automatically determine axis bounds based on the data bounds. These properties are located on the Scale Tab (Axes) on the Property Pages.
Z-axis Notes
The Z-axis minimum/maximum cannot be set inside the Z-range of the data. If you have fixed an extent for the Z-axis and a subsequent data change puts the range outside of the axis, the chart sets the Z-axis IsDefault property so that its extent is recalculated.
X- and Y-axis Notes
The X- and Y-axis minimum/maximum cannot be set to a location that does not coincide with a line of data. The values are always adjusted upwards so they do coincide.