angle_increment_using_segments_per_quad()

static double angle_increment_using_segments_per_quad ( double  tol )

static

Definition at line 131 of file lwstroke.c.

{
        double increment;
        int perQuad = rint(tol);
        // error out if tol != perQuad ? (not-round)
        if ( perQuad != tol )
        {
                lwerror("lwarc_linearize: segments per quadrant must be an integer value, got %.15g", tol, perQuad);
                return -1;
        }
        if ( perQuad < 1 )
        {
                lwerror("lwarc_linearize: segments per quadrant must be at least 1, got %d", perQuad);
                return -1;
        }
        increment = fabs(M_PI_2 / perQuad);
        LWDEBUGF(2, "lwarc_linearize: perQuad:%d, increment:%g (%g degrees)", perQuad, increment, increment*180/M_PI);
 
        return increment;
}

References LWDEBUGF, and lwerror().

Referenced by lwarc_linearize().

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