<｜begin▁of▁sentence｜>### Instruction:
As an AutoCAD designer working on an architectural project, imagine you've meticulously crafted a blueprint of a building's floor plan using AutoCAD software. Now, suppose you need to update the dimensions of a room. How would you ensure that the blueprint reflects these changes accurately without starting from scratch?
### Response:
from CairoPlot import CairoPlot

# Assume we have an instance of CairoPlot called 'cplot'
# At some point in your code after making changes that require a redraw:
cplot.mark_dirty()
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