ptarray_to_wkt_sb()

static void ptarray_to_wkt_sb ( const POINTARRAY *  ptarray, stringbuffer_t *  sb, int  precision, uint8_t  variant  )

static

Definition at line 97 of file lwout_wkt.c.

{
        /* OGC only includes X/Y */
        uint32_t dimensions = 2;
 
        /* ISO and extended formats include all dimensions */
        if ( variant & ( WKT_ISO | WKT_EXTENDED ) )
                dimensions = FLAGS_NDIMS(ptarray->flags);
 
        stringbuffer_makeroom(sb, 2 + ((OUT_MAX_BYTES_DOUBLE + 1) * dimensions * ptarray->npoints));
        /* Opening paren? */
        if ( ! (variant & WKT_NO_PARENS) )
                stringbuffer_append_len(sb, "(", 1);
 
        /* Digits and commas */
        if (ptarray->npoints)
        {
                uint32_t i = 0;
 
                double *dbl_ptr = (double *)getPoint_internal(ptarray, i);
                coordinate_to_wkt_sb(dbl_ptr, sb, dimensions, precision);
 
                for (i = 1; i < ptarray->npoints; i++)
                {
                        stringbuffer_append_len(sb, ",", 1);
                        dbl_ptr = (double *)getPoint_internal(ptarray, i);
                        coordinate_to_wkt_sb(dbl_ptr, sb, dimensions, precision);
                }
        }
 
        /* Closing paren? */
        if ( ! (variant & WKT_NO_PARENS) )
                stringbuffer_append_len(sb, ")", 1);
}

References coordinate_to_wkt_sb(), POINTARRAY::flags, FLAGS_NDIMS, getPoint_internal(), POINTARRAY::npoints, OUT_MAX_BYTES_DOUBLE, precision, stringbuffer_append_len(), stringbuffer_makeroom(), variant, WKT_EXTENDED, WKT_ISO, and WKT_NO_PARENS.

Referenced by lwcircstring_to_wkt_sb(), lwline_to_wkt_sb(), lwpoint_to_wkt_sb(), lwpoly_to_wkt_sb(), and lwtriangle_to_wkt_sb().

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