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{alias:upd}
h2. Name

*upd* — Up down z direction

h2. Syntax
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*upd* \[*u | d*] 

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h2. Description

Set positive z-direction to be downwards or upwards. 

h2. Arguments

{indent}No arguments. Toggle between upwards and downwards mode.{indent} 
*u* 
{indent}Upwards mode. Positive z-axes points upwards.{indent} 
*d* 
{indent}Downwards mode. Positive z-axes points downwards. This is default when starting Geocap because seabed data and reservoir data are below the sea level.{indent}

h2. See also

[d23 - 2D and 3D mode switch], [osc - Ortogonal scale], [ssc - Self scale of data]
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