Change Font Size in FreeCAD TechDraw Workbench Dimensions

techdraw_wb_font_dimensions.FCMacro

# List all objects
# -*- coding: utf-8 -*-
import FreeCAD,Draft
# List all objects of the document
doc = FreeCAD.ActiveDocument
objs = FreeCAD.ActiveDocument.Objects


def clearConsole():
	from PySide import QtGui
	mw=Gui.getMainWindow()
	
	c=mw.findChild(QtGui.QPlainTextEdit, "Python console")
	c.clear()
	
	r=mw.findChild(QtGui.QTextEdit, "Report view")
	r.clear()


clearConsole()

page_name = "Page"
new_font_size = 4.0
techdraw_page = doc.getObject(page_name)


if techdraw_page:
	for obj in techdraw_page.OutList:
		if obj.TypeId == "TechDraw::DrawViewDimension":
				oldSize = obj.ViewObject.Fontsize
				obj.ViewObject.Fontsize = new_font_size
else:
	print("TechDraw page not found.")