ramp.js v1.2.1

RAMP

NodeJS Interpolation Library

New objects

The library add a class template to manage interpolation beetween values of various data types.

• rampNumber ramp object for "number" interpolation

Methods

• go() go to a new value
• value() get actual value of the interpolation
• origin() get last origin value of the interpolation
• target() get last target value of the interpolation
• duration() get last duration of the interpolation
• update() update value of the interpolation according to its parameters
• pause() pause the interpolation
• resume() resume from pause
• setGrain() set interpolation grain
• setAutomation() set automation mode
• isPaused() pause state
• isRunning() running state
• isFinished() finish state

Examples

First you need to instanciate the object as a global variable :

let myRamp = new Ramp();

Then you need to a new value to reach :

myRamp.go(new_value, (ramp_duration), (ramp_mode), (loop_mode));

At least you'll need to update to get the actual interpolation value :

myInterpolationValue = myRamp.update();

Interpolation mode

• NONE
• LINEAR
• QUADRATIC_IN
• QUADRATIC_OUT
• QUADRATIC_INOUT
• CUBIC_IN
• CUBIC_OUT
• CUBIC_INOUT
• QUARTIC_IN
• QUARTIC_OUT
• QUARTIC_INOUT
• QUINTIC_IN
• QUINTIC_OUT
• QUINTIC_INOUT
• SINUSOIDAL_IN
• SINUSOIDAL_OUT
• SINUSOIDAL_INOUT
• EXPONENTIAL_IN
• EXPONENTIAL_OUT
• EXPONENTIAL_INOUT
• CIRCULAR_IN
• CIRCULAR_OUT
• CIRCULAR_INOUT
• ELASTIC_IN
• ELASTIC_OUT
• ELASTIC_INOUT
• BACK_IN
• BACK_OUT
• BACK_INOUT
• BOUNCE_IN
• BOUNCE_OUT
• BOUNCE_INOUT

Loop mode

• ONCEFORWARD
• LOOPFORWARD
• FORTHANDBACK
• ONCEBACKWARD
• LOOPBACKWARD
• BACKANDFORTH

Disclaimer

This Libary is just translated from RAMP for Arduino (siteswapjuggler). I will merge updates from that Libary into this Libary. But i am not an expert at this topic. Have fun :)