If you want to record your riding position, you should use [x,y] coordinates to eliminate angles. It is really hard to measure angles accurately and often the specs are wrong or don't apply to the size you have.
Use the bottom bracket as [0,0]. Mark x=0 on your top tube using some tape. Measure from this position to your saddle and bars. I use the saddle nose and the grip where the web of my hand rests.
Once you have the measurements you can transfer your position to another bike of roughly the correct size, or replicate your bike if it gets stolen or damaged.
You need to take crank length into consideration if you change ot use different sizes on different bikes.
Use the bottom bracket as [0,0]. Mark x=0 on your top tube using some tape. Measure from this position to your saddle and bars. I use the saddle nose and the grip where the web of my hand rests.
Once you have the measurements you can transfer your position to another bike of roughly the correct size, or replicate your bike if it gets stolen or damaged.
You need to take crank length into consideration if you change ot use different sizes on different bikes.