assvg_point_buf()

static size_t assvg_point_buf ( const LWPOINT *  point, char *  output, int  circle, int  precision  )

static

Definition at line 119 of file lwout_svg.c.

References getPoint2d_p(), OUT_MAX_DIGS_DOUBLE, OUT_MAX_DOUBLE, OUT_MAX_DOUBLE_PRECISION, LWPOINT::point, trim_trailing_zeros(), pixval::x, POINT2D::x, pixval::y, and POINT2D::y.

Referenced by assvg_geom_buf(), assvg_multipoint_buf(), and assvg_point().

{
        char *ptr=output;
        char x[OUT_MAX_DIGS_DOUBLE+OUT_MAX_DOUBLE_PRECISION+1];
        char y[OUT_MAX_DIGS_DOUBLE+OUT_MAX_DOUBLE_PRECISION+1];
        POINT2D pt;

        getPoint2d_p(point->point, 0, &pt);

        if (fabs(pt.x) < OUT_MAX_DOUBLE)
                sprintf(x, "%.*f", precision, pt.x);
        else
                sprintf(x, "%g", pt.x);
        trim_trailing_zeros(x);

        /* SVG Y axis is reversed, an no need to transform 0 into -0 */
        if (fabs(pt.y) < OUT_MAX_DOUBLE)
                sprintf(y, "%.*f", precision, fabs(pt.y) ? pt.y * -1 : pt.y);
        else
                sprintf(y, "%g", fabs(pt.y) ? pt.y * -1 : pt.y);
        trim_trailing_zeros(y);

        if (circle) ptr += sprintf(ptr, "x=\"%s\" y=\"%s\"", x, y);
        else ptr += sprintf(ptr, "cx=\"%s\" cy=\"%s\"", x, y);

        return (ptr-output);
}

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