/*
  The following example retrieves information about a simple section line.
*/
#include <stdio.h>
#include <string.h>
#include <uf.h>
#include <uf_defs.h>
#include <uf_draw.h>
#include <uf_draw_types.h>
#include <uf_drf_types.h>
#include <uf_obj.h>
void ufusr(char *param, int *retcod, int param_len)
{
    int                         ifail = 0;
    int                         numchrs;
    int                         num_sxviews;
    int                         num_sxsegs;
    tag_t                       sxline1_tag;
    tag_t                       pview_tag;
    tag_t *                     sxview_tags = NULL;
    tag_t *                     sxseg_tags = NULL;
    double                      step_dir[3];
    double                      arrow_dir[3];
    char                        error_message[133];
    char *                      sxline1 = "simple_sxline1";
    UF_DRAW_sxline_status_t     sxline_status;
    ifail = UF_initialize();
    if( !ifail )
    {
        /* Given the section line tag, get its name. */
        numchrs = strlen( sxline1 );
        ifail = uc5028( sxline1, numchrs, &sxline1_tag );
    }
    if( !ifail )
    {
        /* Retrieve information about a simple section line. */
        ifail = UF_DRAW_ask_simple_sxline( sxline1_tag,
            &sxview_tags, &num_sxsegs, &sxseg_tags,
            &sxline_status );
        UF_free( sxview_tags );
        UF_free( sxseg_tags );
    }
    printf( "UF_DRAW_ask_simple_sxline sample " );
    if( ifail )
    {
        ifail = UF_get_fail_message( ifail, error_message );
        printf( "fails.\nError is: %s\n", error_message );
    }
    else
        printf( "is successful.\n" );
    UF_terminate();
}