FreeCAD [How-to] by FreeCAD Solid Modeling & the Power of Python

Author:FreeCAD Solid Modeling & the Power of Python
Language: eng
Format: epub
Publisher: Packt Publishing

The lines that begin with # are not executed by FreeCAD; they are Python comments. Comments help us understand what is happening in the code. The only lines of code that are actually executed are as follows:

import FreeCAD import Part App.ActiveDocument.addObject("Part::Box","Box") FreeCAD.getDocument("Unnamed").getObject("Box").Width = 20.00

The statements that start with import open some major modules that are needed for our macro to be able to function. import Part lets us make geometric objects such as boxes, cylinders, spheres, and a lot more. App.ActiveDocument.addObject("Part::Box","Box") actually creates the box.

You can edit macros to do things that they didn't do originally, while they were being recorded. Open the macro in the built-in FreeCAD editor by pressing the button that looks like a text edit pad. Select your macro and then select the Edit button. You could change the values of parameters for many different objects. In our example macro, you could change the following two lines to have a different name and length:

App.ActiveDocument.addObject("Part::Box","newbox") FreeCAD.getDocument("Unnamed").getObject("newbox").Width=20.5

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