/*
 * This example retrieves the boundary curves and smart defining points
 * of a member view, TOP@1.
*/
#include <stdlib.h>
#include <stdio.h>
#include <uf_part.h>
#include <uf.h>
#include <uf_defs.h>
#include <uf_draw.h>
#include <uf_draw_types.h>
#include <uf_drf_types.h>
#include <uf_view.h>
void ufusr(char *param, int *retcod, int param_len)
{
    double                      tolerance = 0.0;
    int                         ifail = 0;
    int                         num_objects = 0;
    tag_t                       view_tag = NULL_TAG;
    tag_t                       part_tag = NULL_TAG;
    char                        error_message[133];
    char *                      view_name= "TOP@1";
    UF_DRAW_view_boundary_t *   boundary_curves = NULL;
    ifail = UF_initialize();
    if( !ifail )
        part_tag = UF_PART_ask_display_part();

    if( !ifail && part_tag != NULL_TAG  )

        /* get view tag of TOP view */
        ifail = UF_VIEW_ask_tag_of_view_name( view_name,
                                             &view_tag );

    if( !ifail && part_tag != NULL_TAG )
        ifail = UF_DRAW_ask_boundary_curves( view_tag,
                                            &tolerance,
                                            &num_objects,
                                            &boundary_curves );
    printf( "UF_DRAW_ask_boundary_curves " );
    if( ifail )
    {
        ifail = UF_get_fail_message( ifail, error_message );
        printf( "fails.\nError is: %s\n", error_message );
    }
    else if ( part_tag == NULL_TAG )
        printf( "fails.\nError is: no active part.\n" );
    else
        printf( "is successful, %d curves in boundary array\n",
                 num_objects );
    UF_DRAW_free_boundary( num_objects, boundary_curves );

    ifail = UF_terminate();
}