lwpoint_set_ordinate()

void lwpoint_set_ordinate	(	POINT4D *	p,
		char	ordinate,
		double	value
	)

Given a point, ordinate number and value, set that ordinate on the point.

Definition at line 283 of file lwlinearreferencing.c.

{
        if ( ! p )
        {
                lwerror("Null input geometry.");
                return;
        }
 
        if ( ! ( ordinate == 'X' || ordinate == 'Y' || ordinate == 'Z' || ordinate == 'M' ) )
        {
                lwerror("Cannot set %c ordinate.", ordinate);
                return;
        }
 
        LWDEBUGF(4, "    setting ordinate %c to %g", ordinate, value);
 
        switch ( ordinate )
        {
        case 'X':
                p->x = value;
                return;
        case 'Y':
                p->y = value;
                return;
        case 'Z':
                p->z = value;
                return;
        case 'M':
                p->m = value;
                return;
        }
}

References LWDEBUGF, lwerror(), POINT4D::m, genraster::value, POINT4D::x, POINT4D::y, and POINT4D::z.

Referenced by point_interpolate(), and test_lwpoint_set_ordinate().

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