Add Button to FEM Toolbar Tutorial
Tutorial |
Topic |
---|
Add FEM Equation |
Level |
Time to complete |
Authors |
JohnWang |
FreeCAD version |
0.19 |
Example files |
See also |
None |
Notes: Work In Progress
FEM workbench has toolbars and menus. This tutorial shows how to add a button onto the toolbars. It also show how to add a menuitem into the menu.
The task can be split into four parts:
- Create a new icon file.
- Register the new icon file. In /Gui/Resources/Fem.qrc
- Create a new command. In src/Mod/Fem/femcommands/commands.py
- Add the new command onto the workbench. In src/Mod/Fem/Gui/Workbench.cpp
Create a new icon file
For a button, We need a icon file, here we use FEM_EquationFlow.svg. It has to be put into /Gui/Resources/icons/
.
Register the new icon file
The new FEM_EquationFlow.svg icon has to be registered for the GUI-button with <file>icons/FEM_EquationFlow.svg</file>
in Fem.qrc
(in /Gui/Resources/
).
Create a new command
A new command class that adds a flow equation to the selected solver object.
Next, the command/equation has to be added to the femcommands/commands.py
module. Just copy an existing command and adjust the icon, menu text and tool-tip in __init__(self). Don't forget to register the command at the bottom of the module file by using the addCommand(...) method. Please see the discussion in the forum at https://forum.freecadweb.org/viewtopic.php?f=18&t=46693&start=10#p402004 if icons are involved.
class _EquationFlow(CommandManager): "The FEM_EquationFlow command definition" def __init__(self): super(_EquationFlow, self).__init__() self.menuetext = "Flow equation" self.tooltip = "Creates a FEM equation for flow" self.is_active = "with_solver_elmer" self.do_activated = "add_obj_on_gui_selobj_noset_edit" ... FreeCADGui.addCommand( "FEM_EquationFlow", _EquationFlow() )
Add the new command onto the workbench
The FEM workbench has several toolbars and menus. We will add the new command on to both the solve toolbar and the solve menu.
To add it to the solve toolbar, search for the following code snippet in /Gui/Workbench.cpp
and add the new command to the rest of the equation commands.
Gui::ToolBarItem* solve = new Gui::ToolBarItem(root); solve->setCommand("Solve"); *solve << "FEM_SolverCalculixCxxtools" << "FEM_SolverCalculiX" << "FEM_SolverElmer" << "Separator" << "FEM_EquationElasticity" << "FEM_EquationElectrostatic" + << "FEM_EquationFlow" << "FEM_EquationFluxsolver" << "FEM_EquationElectricforce" << "FEM_EquationHeat" << "Separator" << "FEM_SolverControl" << "FEM_SolverRun";
To add the flow equation command to the solve menu of the FEM workbench, search for the following code snippet in Workbench.cpp
.
Gui::MenuItem* solve = new Gui::MenuItem; root->insertItem(item, solve); solve->setCommand("&Solve"); *solve << "FEM_SolverCalculixCxxtools" << "FEM_SolverCalculiX" << "FEM_SolverElmer" << "FEM_SolverZ88" << "Separator" << "FEM_EquationElasticity" << "FEM_EquationElectrostatic" + << "FEM_EquationFlow" << "FEM_EquationFluxsolver" << "FEM_EquationElectricforce" << "FEM_EquationHeat" << "Separator" << "FEM_SolverControl" << "FEM_SolverRun";