# Synopsis

PDX_MSGT imth_ConcatEntityMatrix(long option, void *entity, IMTH_MATRIX parent, IMTH_MATRIX concat)

# Purpose

Concantenate IGES matrices associated with an IGES entity.

# Description

This function will concatenate the IGES matrices in the specified entity DE data with the specified matrix. If entity is specified as NULL, the parent matrix will be copied to the concat matrix. The parent and concat addresses may be the same.

# Input

## option

### IMTH_TRANSPOSE

Concatenate with the transpose (inverse) of the entity matrix

## entity

Pointer to IGES entity

## parent

Parent matrix

# Output

## concat

Concatenate matrix

# Return

          IMTH_NOERR
          Low level error return
          .fi