pointArray_svg_abs()

static size_t pointArray_svg_abs ( POINTARRAY *  pa, char *  output, int  close_ring, int  precision  )

static

Returns maximum size of rendered pointarray in bytes.

Definition at line 614 of file lwout_svg.c.

{
        int i, end;
        char *ptr;
        char x[OUT_DOUBLE_BUFFER_SIZE];
        char y[OUT_DOUBLE_BUFFER_SIZE];
        POINT2D pt;
 
        ptr = output;
 
        if (close_ring) end = pa->npoints;
        else end = pa->npoints - 1;
 
        for (i=0 ; i < end ; i++)
        {
                getPoint2d_p(pa, i, &pt);
 
                lwprint_double(pt.x, precision, x, OUT_DOUBLE_BUFFER_SIZE);
                lwprint_double(-pt.y, precision, y, OUT_DOUBLE_BUFFER_SIZE);
 
                if (i == 1) ptr += sprintf(ptr, " L ");
                else if (i) ptr += sprintf(ptr, " ");
                ptr += sprintf(ptr,"%s %s", x, y);
        }
 
        return (ptr-output);
}

References getPoint2d_p(), lwprint_double(), POINTARRAY::npoints, OUT_DOUBLE_BUFFER_SIZE, precision, POINT2D::x, and POINT2D::y.

Referenced by assvg_line_buf(), and assvg_polygon_buf().

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