How to install macros
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This short tutorial will show you how to install and use FreeCAD macros.
Macros are sequences of commands or drawing actions which are used to perform a complex operation. Macros are Python scripts, which means they are text files that can be written and edited with a text editor.
While Python scripts normally have the
.py extension, macros should have the
Besides the tools in the toolbar, the following functions are also available in the Macro menu.
Location and destination of macros
1. Open the menu Macro → Macros to open the Execute macro dialog.
2. Set the appropriate "User macros location".
- Linux: usually
- Windows: usually
- MacOS: usually
3. Navigate to that directory in your computer:
- Linux: paste the address into your file manager, "Nautilus" or other. You may have to press
+ to make the hidden directory
- Windows: paste the address into your "File explorer" and confirm.
- MacOS: locate the folder in the "Finder" or paste the address into a "File explorer"; remember the
file:///prefix in the "File explorer" for a file on disk.
4. Access the files by:
- Linux: leave the file manager open, and bookmark the location for faster access.
- Windows: leave open the file explorer.
- MacOS: either leave a "Finder" window open, or bookmark the location in your "File explorer", or set up an "Alias" to point to it, or drag the folder into the "SideBar" of the "Finder" so it is there to use from other programs such as text editors.
Section to read if you are not familiar with Python programming (common mistakes copy/paste).
The indentation errors examples wrong code
The indentation in the python programming is very important and integral part of the code, a space or an inappropriate shift causes an indentation error ex :
<unknown exception traceback><type 'exceptions.IndentationError'>: ('expected an indented block', ('C:/Users/d/AppData/Roaming/FreeCAD/Macro_Apothem_Based_Prism_GUI.FCMacro', 21, 3, 'def priSm(self):\n'))
gives the error returned 'expected an indented block' block indentation expected to line 21, 3, normal after a class p (): must be the next line an indentation at least one space.
1 : In this example, the code was stuck without any indentation and of course does not work! here definitely a programmer error when pasting the code on the page as it would have never known it to work.
2 : the code was correct indentations in the right place.
3 : we select the code, and we see that the selection is at the edge of the code, the macro must works so good
4 : Here additional space is selected (it can happen) then you need to copy the code into a word processor to remove one space all lines
5 : Here the code has been copied in a forum window with thebutton apparently the selection is good
6 : But the selection pasted into the FreeCAD editor gives a surprise, an indent of four spaces has been added by the system ? the code is not good
7 : You must delete all the extra space that is four spaces on each line, for Windows word processing notepad-plus-plus enables vertical selection with a combination of buttons + Mouse dragging or Menu> Edit> Indent> Decrease the indentation
8 : Here the selection also take the column numbers which will also give an error
9 : Perfect code.
Method copy the code in one window and paste in the FreeCAD editor
For example we will copy the macro Macro_Apothem_Based_Prism_GUI
If there are one or more icon (s) download also position your mouse over the icon, click the right mouse button and click "Save image as ..." the icon or icons are placed in the macro directory and one of these icons serve as a shortcut icon to place on the toolbar.
After copying your code we will paste the code in FreeCAD editor.
1 : Open FreeCAD and open the editor in FreeCAD
2 : The window macros file opens, clickbutton
3 : A new window opens, enter the macro name (here "Macro_Apothem_Based_Prism_GUI")and click the createbutton
4 : The editing window FreeCAD macros is now available and has the name of our future macro.
5 : Paste your code in the macro editor window and click the little cross to close the window.
6 : A warning window appears asking for confirmation of save code, click on
PS: For the change silk consideration must save the macro and reopen it and just run it.
7 : Repeat the number 1 : , Click on your new macro and button
8 : The macro runs, complete the fields with your values and click thebutton
10 : Here is your prism
11 : You can also open your macro in the editor to run or modify, click thebutton
Method macro in a compressed .ZIP file
For Linux use this on the terminal
unzip your_file.zip -d your_directory
you must unzip the zip and copy the file (or all the files and folders) in your macro directory.
1 : Download your file in your local folder here the folder Temp
2 : Unzip your file in the folder.
3 : The decompressor finished his work and created a new folder with the unpacked file
4 : Enter in the newly created directory, move about the file, click the right mouse button and click on Cut.
5 : Return to your File explorer remained open in the macro location (here C:\Users\your_user_name\AppData\Roaming\FreeCAD\) and close the File explorer.
7 : The macros window open , select your macro and click the button
8 : Your macro is executed enter the data and click thebutton
9 : Whaouu
Section if the text are not display:
For those who see no information is displayed.
Some macros display information on the screen in general they are displayed in the report view.
FreeCAD use two methods to display the information in the window view report.
1 : Commands
App = FreeCAD App.Console.PrintMessage ("Hello World ! \n") App.Console.PrintError ("Hello World ! \n") App.Console.PrintWarning ("Hello World ! \n")
FreeCAD.Console.PrintMessage ("Hello World ! \n") FreeCAD.Console.PrintError ("Hello World ! \n") FreeCAD.Console.PrintWarning ("Hello World ! \n")
print "Hello World !"
To see the information displayed in the console you should:
1 : Open FreeCAD
2 : Click the View menu and Views
3 : Check Report View and Python Console
4 : the windows are enabled and available commands like "App.Console.PrintMessage" is configured to the "Report View"
2 : command "print" which is a Python command.
It is possible that this command does not display the expected string.
For information to be displayed in the window do this :
1 : Click the Edit menu and then Preferences
2 : In the new window, click General, and select the Output window tab
3 : check both boxes:
and click thebutton
4 : the setup is complete you should see all.
End tutorial good job.
Macro addons_installer.FCMacro for easy install the macro
Other easy macro installer freecad-pluginloader
The Macros recipes page