/// <summary> /// Extrude the model entities `dimTags' by a combined translation and /// rotation of `angle' radians, along (`dx', `dy', `dz') and around the axis /// of revolution defined by the point (`x', `y', `z') and the direction /// (`ax', `ay', `az'). The angle should be strictly smaller than Pi. Return /// extruded entities in `outDimTags'. If `numElements' is not empty, also /// extrude the mesh: the entries in `numElements' give the number of elements /// in each layer. If `height' is not empty, it provides the (cumulative) /// height of the different layers, normalized to 1. /// </summary> public static void Twist(ValueTuple <int, int>[] dimTags, double x, double y, double z, double dx, double dy, double dz, double ax, double ay, double az, double angle, out ValueTuple <int, int>[] outDimTags, int[] numElements = default, double[] heights = default, bool recombine = false) { var dimarray = dimTags.ToIntArray(); unsafe { int *ptrss; long outcount = 0; if (numElements == default) { numElements = new int[0]; } if (heights == default) { heights = new double[0]; } Gmsh_Warp.GmshModelGeoTwist(dimarray, dimarray.LongLength, x, y, z, dx, dy, dz, ax, ay, az, angle, &ptrss, ref outcount, numElements, numElements.LongLength, heights, heights.LongLength, Convert.ToInt32(recombine), ref Gmsh._staticreff); var array = UnsafeHelp.ToIntArray(ptrss, outcount); outDimTags = array.ToIntPair(); Gmsh.CheckException(MethodBase.GetCurrentMethod().MethodHandle); } }