- If updating gets slow, go to View and turn off 'section planes' and 'section cuts'
- For the tape measure tool hitting 'option' (on Mac) will allow you to add guides
- Measuring from a guide line results in a infinite guide line parallel to the starting guideline, measuring from a component point results in a finite guideline in the direction chosen
- Panning and rotating with any tool active slows things down - it could be that sketchup is doing a lot of computations with tools active. When I need to pan, I just switch to the pan/zoom/rotate tool.
- Drawing plane depends on where the horizon is. If Horizon is high ('ground' fills 2/3 or more of the screen) drawing happens on the horizontal plane. If the horizon is low ('sky' fills most of screen) drawing will happen on the vertical plane
Python's context managers are a very neat way of handling code that needs a teardown once you are done. Python objects have do have a destructor method ( __del__ ) called right before the last instance of the object is about to be destroyed. You can do a teardown there. However there is a lot of fine print to the __del__ method. A cleaner way of doing tear-downs is through Python's context manager , manifested as the with keyword. class CrushMe: def __init__(self): self.f = open('test.txt', 'w') def foo(self, a, b): self.f.write(str(a - b)) def __enter__(self): return self def __exit__(self, exc_type, exc_val, exc_tb): self.f.close() return True with CrushMe() as c: c.foo(2, 3) One thing that is important, and that got me just now, is error handling. I made the mistake of ignoring all those 'junk' arguments ( exc_type, exc_val, exc_tb ). I just skimmed the docs and what popped out is that you need to return True or...
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