lwprint_double()

int lwprint_double	(	double	d,
		int	maxdd,
		char *	buf,
		size_t	bufsize
	)

Definition at line 490 of file lwprint.c.

{
        double ad = fabs(d);
        int ndd;
        int length = 0;
        if (ad <= FP_TOLERANCE)
        {
                d = 0;
                ad = 0;
        }
        if (ad < OUT_MAX_DOUBLE)
        {
                ndd = ad < 1 ? 0 : floor(log10(ad)) + 1; /* non-decimal digits */
                if (maxdd > (OUT_MAX_DOUBLE_PRECISION - ndd)) maxdd -= ndd;
                length = snprintf(buf, bufsize, "%.*f", maxdd, d);
        }
        else
        {
                length = snprintf(buf, bufsize, "%g", d);
        }
        trim_trailing_zeros(buf);
        return length;
}

References FP_TOLERANCE, OUT_MAX_DOUBLE, OUT_MAX_DOUBLE_PRECISION, and trim_trailing_zeros().

Referenced by assvg_point_buf(), pointArray_svg_abs(), pointArray_svg_rel(), pointArray_to_geojson(), pointArray_toGML2(), pointArray_toGML3(), ptarray_to_wkt_sb(), and ptarray_to_x3d3_sb().

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