# Synopsis

PDX_MSGT gcr_RevSurf(long option, MDA_PTR orig_db_ptr, double revolve_pnt[3], double revolve_vec[3], double start_angle, double end_angle, MDA_PTR gen_curve_ptr, int gdx_model, MDA_PTR *gdx_REV_ptr)

# Purpose

Create a GDX Revolve Surface.

# Description

Given the revolve axis revolve_pnt, the normalized revolve axis vector revolve_vec, the start angle, the end angle and the G0 continuous GDX curve gen_curve_ptr, create a GDX revolve surface.

The orig_db_ptr argument should contain the database pointer of the entity that the new entity was created from (usually this should be obtained by the calling routine via mda_GetOrigDbptr) or MDA_NULL_PTR. See the mda_intro man page for more information about predecessor entities.

\fBRules\fR .IP • 3 Angles measured counterclockwise in radians. .IP • 3 0 <= start_angle < MTH_2_PI .IP • 3 start_angle < end_angle <= start_angle + MTH_2_PI .LP

# Input

## option

### GCR_NOVALIDATE

No validation will occur on the input data.

## orig_db_ptr

The original entities orig_db_ptr as obtained from the mda_GetOrigDbptr call or MDA_NULL_PTR

## revolve_pnt

XYZ point on the revolve axis

## revolve_vec

The normalized revolve axis vector

## start_angle

The start angle

## end_angle

The end angle

## gen_curve_ptr

The database pointer of the curve to be revolved.

## gdx_model

The GDX model for entity creation

# Output

## gdx_REV_ptr

Entity database pointer of the GDX Revolved Surface

# Tolerances

          GDX ANGLE_TOL
          .fi

# Return

          GCR_NOERR
          GCR_INVALID_MODEL
          GCR_REV_SURF_END_ANGLE
          GCR_REV_SURF_ANGLE_DIFF
          Low level error return
          .fi