Piston equivalents
For example, the Expression2 snippets below are equivalent and are also presented
how they are used in E2 Chip here with a top piston configuration of
55.306 degrees as a number 
and vector 
internals. The value of Shaft:cnvPistonMark()
as VBER is actually the same angle but represented as a local vector relative to the crankshaft,
which is later converted to one relative to the Base entity for efficiency ( Otherwise all the top
piston vectors must be converted to the Shaft or all to be converted to world-space rather than
local ). The value Base is the base prop of your engine that your crankshaft is constrained to via
an axis and Shaft is the entity based on which the bearing is calculated. Whatever bearing data type
you prefer to represent the bearing either number or vector it is due to a way of preference. The piston
configuration properties are described below with a tutorial on how to create a piston, define bearing
and use it as needed. The execution speed scaled 1..10:
Initialization:
Shaft:setPistonSign(1, 55.306)Usage:
BER = Chip:bearing(GPS)
Shaft:getPiston(1, BER)
Shaft:getPiston(2, BER)
Shaft:getPiston(N, BER)Initialization:
Shaft:setPistonWave(1, 55.306)Usage:
BER = Chip:bearing(GPS)
Shaft:getPiston(1, BER)
Shaft:getPiston(2, BER)
Shaft:getPiston(N, BER)Initialization:
Shaft:setPistonRamp(1, 55.306)Usage:
BER = Chip:bearing(GPS)
Shaft:getPiston(1, BER)
Shaft:getPiston(2, BER)
Shaft:getPiston(N, BER)Initialization:
Shaft = entity()
setPistonBase(Shaft:isConstrainedTo("axis"))
setPistonAxis(0.601048110939, -0.79921284295, 0)
setPistonMark(0,0,1)
Shaft:setPistonSignX(1, vec(0,1,0))Usage:
BER = Shaft:cnvPistonMark()
Shaft:getPiston(1, BER)
Shaft:getPiston(2, BER)
Shaft:getPiston(N, BER)Initialization:
Shaft = entity()
setPistonBase(Shaft:isConstrainedTo("axis"))
setPistonAxis(0.601048110939, -0.79921284295, 0)
setPistonMark(0,0,1)
Shaft:setPistonSignX(1, vec(0,1,0))Usage:
BER = Shaft:cnvPistonMark()
Shaft:getPiston(1, BER)
Shaft:getPiston(2, BER)
Shaft:getPiston(N, BER)