File size: 3,686 Bytes
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# * Copyright (c) 2021 Bernd Hahnebach <bernd@bimstatik.org> *
# * *
# * 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],
)
)
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