NullDataValueZ

Purpose

This property defines the z axis value which is designated as NULL. Plotting method graphics will ignore NULL data values. The Pesgo controls use Z Data for contour and bubble plots.

Comments

The default value is zero so graphs will not graph zero data by default. If you need to graph zeros then change this property to a value that is not expected, like, -99999.

You should not use a null data value that has more than 7 digits. For example, -99999999 used as a null data value cannot be represented accurately with single precision. Use smaller null data values like -9999 or -1e7 for this property.

See Also: NullDataValue, NullDataValueX