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.

References POINTARRAY::flags, FLAGS_NDIMS, getPoint_internal(), POINTARRAY::npoints, stringbuffer_append(), stringbuffer_aprintf(), 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().

{
        /* OGC only includes X/Y */
        int dimensions = 2;
        int i, j;

        /* 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, " ");
                        stringbuffer_aprintf(sb, "%.*g", precision, dbl_ptr[j]);
                }
        }

        /* Closing paren? */
        if ( ! (variant & WKT_NO_PARENS) )
                stringbuffer_append(sb, ")");
}

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