# Synopsis

PDX_MSGT gdx_EvalEdgeCurvePnt(long option, MDA_PTR gdx_ec_ptr, double tval, MTH_3DPNT point)

# Purpose

Evaluate a point on a GDX Edge Curve.

# Description

Given the GDX Edge Curve defintion and a parameter value evaluates a point location on the Edge Curve.

# Input

## option

### GDX_UNNORM

Unnormalize the parameter value

### GDX_REVSENSE

Reverse the sense of the model space curve for evaluation

## gdx_ec_ptr

The Evaluation GDX Edge Curve database pointer.

## tval

Parameter value to evaluate

# Output

## point

Resulting 3D point

# Return

          GDX_NOERR
          GDX_PARMOUTOFRANGE
          Low level error return.
          .fi