This sample is to set the location of the label when labelPosition="inside"
Sets the labelPosition property to "inside".
labelAlign
top: sets the location of the label to the top of the bar.
middle: sets the location of the label to the middle of the bar.
bottom: sets the location of the label to the bottom of the bar.

ā—¸Layout
<Column3DSeries labelPosition="inside" labelAlign="top" yField="Profit" />
<Column3DSeries labelPosition="inside" labelAlign="middle" yField="Cost" />
<Column3DSeries labelPosition="inside" labelAlign="bottom" yField="Revenue" />