Fem: Add electric charge density object

2025-03-27 10:18:16 -03:00
parent a8372c1f55
commit 10426ca011
15 changed files with 1119 additions and 3 deletions
--- a/src/Mod/Fem/femobjects/constraint_electricchargedensity.py
+++ b/src/Mod/Fem/femobjects/constraint_electricchargedensity.py
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+# ***************************************************************************
+# *   Copyright (c) 2025 Mario Passaglia <mpassaglia[at]cbc.uba.ar>         *
+# *                                                                         *
+# *   This file is part of FreeCAD.                                         *
+# *                                                                         *
+# *   FreeCAD is free software: you can redistribute it and/or modify it    *
+# *   under the terms of the GNU Lesser General Public License as           *
+# *   published by the Free Software Foundation, either version 2.1 of the  *
+# *   License, or (at your option) any later version.                       *
+# *                                                                         *
+# *   FreeCAD 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      *
+# *   Lesser General Public License for more details.                       *
+# *                                                                         *
+# *   You should have received a copy of the GNU Lesser General Public      *
+# *   License along with FreeCAD. If not, see                               *
+# *   <https://www.gnu.org/licenses/>.                                      *
+# *                                                                         *
+# ***************************************************************************
+
+__title__ = "FreeCAD FEM constraint electric charge density document object"
+__author__ = "Mario Passaglia"
+__url__ = "https://www.freecad.org"
+
+## @package constraint_electricchargedensity
+#  \ingroup FEM
+#  \brief constraint electric charge density object
+
+from . import base_fempythonobject
+
+_PropHelper = base_fempythonobject._PropHelper
+
+
+class ConstraintElectricChargeDensity(base_fempythonobject.BaseFemPythonObject):
+
+    Type = "Fem::ConstraintElectricChargeDensity"
+
+    def __init__(self, obj):
+        super().__init__(obj)
+
+        for prop in self._get_properties():
+            prop.add_to_object(obj)
+
+    def _get_properties(self):
+        prop = []
+
+        prop.append(
+            _PropHelper(
+                type="App::PropertyVolumeChargeDensity",
+                name="SourceChargeDensity",
+                group="Electric Charge Density",
+                doc="Free electric charge per unit volume at the sources",
+                value="0 C/mm^3",
+            )
+        )
+        prop.append(
+            _PropHelper(
+                type="App::PropertySurfaceChargeDensity",
+                name="InterfaceChargeDensity",
+                group="Electric Charge Density",
+                doc="Free electric charge per unit surface at the boundaries",
+                value="0 C/mm^2",
+            )
+        )
+        prop.append(
+            _PropHelper(
+                type="App::PropertyElectricCharge",
+                name="TotalCharge",
+                group="Electric Charge Density",
+                doc="Total free electric charge",
+                value="0 C",
+            )
+        )
+        prop.append(
+            _PropHelper(
+                type="App::PropertyEnumeration",
+                name="Mode",
+                group="Electric Charge Density",
+                doc="Switch quantity input mode",
+                value=["Interface", "Source", "Total Interface", "Total Source"],
+            )
+        )
+
+        return prop