Lemur Monitors Jazzmutant Lemur Manual De Usuario
Parser Reference
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This can be very useful to derive “clean” values from the time variable (see below for
a definition of Lemur time):
time%1 = 0.25 (if time = 2043.25)
5.1.3. Functions
Functions
are the other founding stone of expressions in the Lemur. There is a
variety of
internal
(pre-defined) Functions but you can also
define your own
Function.
You can create a Function by setting up a variable named
xxx(a,b)
and set its value
as something like
a-b+2
.
The Functions can then be taken as the value for other Variables, where they receive
“real” Lemur values as arguments. You could use the above function by making a Variable
named
named
yyy
with the value
xxx(Fader.x,Multiball.y).
In this case
a
and
b
are
substitutes by the current values of
Fader.x
and
MultiBall.y
.
Please note that most Functions that can act on singletons can adapt to vectors as
well. For instance :
round(1.2) = 1
round({1.2, 3.8, 0.1}) = {1, 4, 0}
5.1.4. Expressions
Using all those bricks, you can create
named Expressions
(Variables) or use
Expressions as Objects' parameters (attraction, etc.)
When entering a
vector
as a parameter for a multi-state Object (Switches,
MultiBall, Leds, Pads), the parser will do its best to map each item in the vector to each sub-
object
object
For instance :
entering {0.1, 0.5, 1.0} as the attraction for a Multiball that has 3 balls sets :
attraction for Ball 0 : 0.1
attraction for Ball 1 : 0.5
attraction for Ball 2 : 1.0
When mapping a vector Variable to MIDI (the x parameter of a Multiball with 10 balls,
or a user-created Expression that evaluates as a vector), the parser will try to stretch the
mapping to all the items.
mapping to all the items.
For example:
A custom Expression called "vec" with value set to :
{Ball.x+Ball.y, Ball.x-Ball.y}.
If you know go into the MIDI panel and want to map the Expression to a MIDI
controller, you just have to put controller 10 into the first controller field and the second field
will automatically be set to 11.
will automatically be set to 11.