# *************************************************************************** # * Copyright (c) 2021 Bernd Hahnebach * # * * # * This file is part of the FreeCAD CAx development system. * # * * # * This program is free software; you can redistribute it and/or modify * # * it under the terms of the GNU Lesser General Public License (LGPL) * # * as published by the Free Software Foundation; either version 2 of * # * the License, or (at your option) any later version. * # * for detail see the LICENCE text file. * # * * # * This program is distributed in the hope that it will be useful, * # * but WITHOUT ANY WARRANTY; without even the implied warranty of * # * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * # * GNU Library General Public License for more details. * # * * # * You should have received a copy of the GNU Library General Public * # * License along with this program; if not, write to the Free Software * # * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * # * USA * # * * # *************************************************************************** __title__ = "FreeCAD FEM calculix constraint transform" __author__ = "Bernd Hahnebach" __url__ = "https://www.freecad.org" import FreeCAD from femtools import geomtools def get_analysis_types(): return "all" # write for all analysis types def get_sets_name(): return "constraints_transform_node_sets" def get_constraint_title(): return "Transform Constraints" def get_before_write_meshdata_constraint(): return "" def get_after_write_meshdata_constraint(): return "" def get_before_write_constraint(): return "" def get_after_write_constraint(): return "" def write_meshdata_constraint(f, femobj, trans_obj, ccxwriter): if trans_obj.TransformType == "Rectangular": f.write(f"*NSET,NSET=Rect{trans_obj.Name}\n") elif trans_obj.TransformType == "Cylindrical": f.write(f"*NSET,NSET=Cylin{trans_obj.Name}\n") for n in femobj["Nodes"]: f.write(f"{n},\n") def write_constraint(f, femobj, trans_obj, ccxwriter): # floats read from ccx should use {:.13G}, see comment in writer module trans_name = "" trans_type = "" if trans_obj.TransformType == "Rectangular": trans_name = "Rect" trans_type = "R" x = trans_obj.Rotation * FreeCAD.Vector(1, 0, 0) y = trans_obj.Rotation * FreeCAD.Vector(0, 1, 0) coords = list(x) + list(y) elif trans_obj.TransformType == "Cylindrical": trans_name = "Cylin" trans_type = "C" base = trans_obj.BasePoint axis = trans_obj.Axis coords = list(base) + list(base + axis) f.write( "*TRANSFORM, NSET={}{}, TYPE={}\n".format( trans_name, trans_obj.Name, trans_type, ) ) f.write( "{:.13G},{:.13G},{:.13G},{:.13G},{:.13G},{:.13G}\n".format( coords[0], coords[1], coords[2], coords[3], coords[4], coords[5], ) )