Martin Audio MLA User Manual page 189

MLA System
USER GUIDE
If you select 'On Ground' you will first see a warning that the array height may change and that it is advisable to re-calculate the
splay angles back in the splay tab;-
Click 'Yes OK to proceed and the array diagram will update accordingly;-
'On Ground' refers to the lowest point on the venue slice available for the horizontal (front to back) position for the array. If for
example the array is placed on a stage, selecting 'On Ground' will result in a Lower trim equal to the stage.
For either option the results section will also update showing the total array mass and the required ground stack bar and number
to use to get the closest angle to the design figure;-
MLA System User Guide V2.1
189