public static extern SU_RESULT SUDimensionRadialRelease(ref SUDimensionRadialRef dimension);
public static extern SU_RESULT SUDimensionRadialGetCurveInstancePath(SUDimensionRadialRef dimension, ref SUInstancePathRef path);
public static extern SU_RESULT SUDimensionRadialCreate(ref SUDimensionRadialRef dimension, SUInstancePathRef path);
public static extern SUDimensionRef SUDimensionRadialToDimension(SUDimensionRadialRef dimension);
public static extern SU_RESULT SUDimensionRadialGetLeaderPoints(SUDimensionRadialRef dimension, SUPoint3D[] points);
public static extern SU_RESULT SUDimensionRadialSetLeaderBreakPoint(SUDimensionRadialRef dimension, ref SUPoint3D point);
public static extern SU_RESULT SUDimensionRadialSetDiameter(SUDimensionRadialRef dimension, bool is_diameter);