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 83 of file lwout_wkt.c.

{
        /* OGC only includes X/Y */
        uint32_t dimensions = 2;
        uint32_t i, j;
        static size_t buffer_size = 128;
        char coord[buffer_size];
 
        /* ISO and extended formats include all dimensions */
        if ( variant & ( WKT_ISO | WKT_EXTENDED ) )
                dimensions = FLAGS_NDIMS(ptarray->flags);
 
        /* Opening paren? */
        if ( ! (variant & WKT_NO_PARENS) )
                stringbuffer_append(sb, "(");
 
        /* Digits and commas */
        for (i = 0; i < ptarray->npoints; i++)
        {
                double *dbl_ptr = (double*)getPoint_internal(ptarray, i);
 
                /* Commas before ever coord but the first */
                if ( i > 0 )
                        stringbuffer_append(sb, ",");
 
                for (j = 0; j < dimensions; j++)
                {
                        /* Spaces before every ordinate but the first */
                        if ( j > 0 )
                                stringbuffer_append(sb, " ");
                        lwprint_double(dbl_ptr[j],
                                       precision,
                                       coord,
                                       buffer_size);
                        stringbuffer_append(sb, coord);
                }
        }
 
        /* Closing paren? */
        if ( ! (variant & WKT_NO_PARENS) )
                stringbuffer_append(sb, ")");
}

References POINTARRAY::flags, FLAGS_NDIMS, getPoint_internal(), lwprint_double(), POINTARRAY::npoints, precision, stringbuffer_append(), 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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