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  • Expression to revert tex animation

  • Gabriel Silva

    April 3, 2020 at 1:41 pm

    Hello people. I need help. I have the following expressions for animating the text:

    ####Expression 01####

    delay = .05;

    myDelay = delay*textIndex;

    t = (time – inPoint) – myDelay;

    if(t >= 0){
    freq = 2;

    amplitude = 100;

    decay = 8.0;

    s = amplitude*Math.cos(freq*t*2*Math.PI)/Math.exp(decay*t);

    [s,s];

    }else{
    value
    }

    ####Expression 02####

    delay = .05;
    myInDelay = delay*textIndex;
    myOutDelay = delay*(textTotal -textIndex + 1);
    tStart = inPoint + myInDelay;
    tStop = outPoint – myOutDelay;
    if ((time < tStart) || (time > tStop)){
    t = 0;
    }else{
    if (time < (tStart + tStop)/2){
    t = time – tStart;
    }else{
    t = tStop – time;
    }
    }
    freq =2;
    amplitude = 100;
    decay = 8.0;
    s = amplitude*Math.cos(freq*t*2*Math.PI)/Math.exp(decay*t);
    [s,s]

    And I would like that instead of animating by reading order he would animate backwards.
    Can you help me?

  • Dan Ebberts

    April 4, 2020 at 1:46 am

    I think if you replace textIndex with:

    ((textTotal – textIndex)+1)

    it should go backwards.

    Dan

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