# Synopsis

PDX_MSGT igeo_ResetApprox(long option, EAM_STACK *stack)

# Purpose

Resets for non additive linear approximation.

# Description

Resets all data pointers so that any new data is NOT added to the currently approximated data, otherwise the next call to an igeo_Approx... function will add the resultant entities approximation data to the current approximation data. In addition, by default the attribute stack is initialized to the attribute on the bottom(the first attribute) of the stack.

# Input

## option

### IGEO_APXDATA

Reset the approximation data only and not the attribute stack.

## stack

The attribute stack handle to use for approximation or NULL

# Return

          IMHT_NOERR
          Low level error return
          .fi