# Synopsis

PDX_MSGT gdx_GetNurbCurveContinuity(long option, MDA_PTR db_ptr, double cont_toler[4], int *cont_deg)

# Purpose

Determine the GDX NURB Curve continuity

# Description

Given a GDX NURB Curve, determines the minimium continuity between all the segements in the GDX NURB Curve entity to within the cont_toler tolerances. The cont_deg value can vary from -1 for discontinuous to a maximium of the degree of the GDX NURB Curve. The GDX NURB Curve entity must be a valid GDX definition.

# Input

## option

### GDX_GTEST

Perform G continuity test for continuity degree less than 3

## db_ptr

The database pointer of the GDX NURB Curve

## cont_toler

The continuity tolerances .nf [0] = Model space distance (G0) [1] = Radian angle difference (G1) [2] = Curvature difference (G2) [3] = Normalized derivative distance .fi

# Output

## cont_deg

The degree of continuity

# Tolerances

          NORMAL_MAG_TOL
          .fi

# Return

          GDX_NOERR
          Low level error return
          .fi