An expression is a textual value that starts with =.
Expressions unlike [Code Handlers](code handler) can be defined on the .json
config file and support teleporting.
BeamToIX supports:
binary operators: +, -, *, /, % (modulus).
Work both with numbers and arrays.
+ operator also concatenates textual values.
equality and comparison operators: ==, !=, <, >, <=, >=.
logical comparison: and, or.
These operators transform the 2 numerical values into 0 (false) or 1 (true).
parenthesis: (, ).
.
textual values: delimited by single quotes.
the following character strings have a special meaning:
- \' - defines a single quote
- \n - defines new line
v0 - Computed Numerical valueStart.
v1 - Computed Numerical value.
vd - Computed Numerical difference value - valueStart.
vt - Computed Numerical value injected to the easing function.
vot - Computed Numerical value injected to the oscillator function.
vpt - Computed Numerical value injected to the path function.
t - t used to interpolate an easing, oscillator or path via expression.
DevToIX
Description
An expression is a textual value that starts with
=. Expressions unlike [Code Handlers](code handler) can be defined on the.jsonconfig file and support teleporting.BeamToIX supports:
binary operators:
+,-,*,/,%(modulus). Work both with numbers and arrays.+operator also concatenates textual values.equality and comparison operators:
==,!=,<,>,<=,>=.logical comparison:
and,or. These operators transform the 2 numerical values into 0 (false) or 1 (true).parenthesis:
(,)..
textual values: delimited by single quotes. the following character strings have a special meaning: -
\'- defines a single quote -\n- defines new linenumerical values.
numerical arrays: [x,y,z].
variables: numerical, textual, numerical arrays, objects.
variable array one-dimension indices.
Built-in Variables
BeamToIX has the following built-in variables:
e- mathematical constant 'e'.pi- mathematical constant 'pi'.deg2rad-=pi/180.rad2deg-=180/pi.fps- frames per second.frameWidth- frame output width = generated file image width.frameHeight- frame output height = generated file image height.isTeleporting- Is True, if it's teleporting.v0- Computed NumericalvalueStart.v1- Computed Numericalvalue.vd- Computed Numerical differencevalue-valueStart.vt- Computed Numerical value injected to the easing function.vot- Computed Numerical value injected to the oscillator function.vpt- Computed Numerical value injected to the path function.t-tused to interpolate an easing, oscillator or path via expression.Examples
= 'A' + 'Beamer'.= round(12.4 + ceil(50.5) / 2 * (60 % 4)).= cos(60*deg2rad) * random().= iff(fps < 20, 'too few frames', 'lots of frames').=[2, 3] + [4, 5].=chart.labelsY.marginAfter.=foo[x-y+z].