Package org.apache.commons.math.ode.sampling

Examples of org.apache.commons.math.ode.sampling.AbstractStepInterpolator.storeTime()

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  public void testImpossibleSerialization()
  throws IOException {

    double[] y = { 0.0, 1.0, -2.0 };
    AbstractStepInterpolator interpolator = new BadStepInterpolator(y, true);
    interpolator.storeTime(0);
    interpolator.shift();
    interpolator.storeTime(1);

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream    oos = new ObjectOutputStream(bos);
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    double[] y = { 0.0, 1.0, -2.0 };
    AbstractStepInterpolator interpolator = new BadStepInterpolator(y, true);
    interpolator.storeTime(0);
    interpolator.shift();
    interpolator.storeTime(1);

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream    oos = new ObjectOutputStream(bos);
    try {
        oos.writeObject(interpolator);
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        double t0 = r1 - 0.5 * gap;
        es.reinitializeBegin(t0, new double[0]);
        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(t0);

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
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        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(t0);

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

        interpolator.shift();
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        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

        interpolator.shift();
        interpolator.storeTime(r2 + 0.4 * gap);
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r2, es.getEventTime(), tolerance);

    }

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                                                            y1, yDot1,
                                                            yMidDots, forward);
    } else {
      interpolator = new DummyStepInterpolator(y, yDot1, forward);
    }
    interpolator.storeTime(t0);

    stepStart = t0;
    double  hNew             = 0;
    double  maxError         = Double.MAX_VALUE;
    boolean previousRejected = false;
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      }

      if (! reject) {

        // Discrete events handling
        interpolator.storeTime(stepStart + stepSize);
        stepStart = acceptStep(interpolator, y1, yDot1, t);

        // prepare next step
        interpolator.storeTime(stepStart);
        System.arraycopy(y1, 0, y, 0, y0.length);
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        // Discrete events handling
        interpolator.storeTime(stepStart + stepSize);
        stepStart = acceptStep(interpolator, y1, yDot1, t);

        // prepare next step
        interpolator.storeTime(stepStart);
        System.arraycopy(y1, 0, y, 0, y0.length);
        System.arraycopy(yDot1, 0, yDot0, 0, y0.length);
        firstStepAlreadyComputed = true;

        int optimalIter;
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      rki.reinitialize(this, yTmp, yDotK, forward);
      interpolator = rki;
    } else {
      interpolator = new DummyStepInterpolator(yTmp, yDotK[stages - 1], forward);
    }
    interpolator.storeTime(t0);

    // set up integration control objects
    stepStart = t0;
    stepSize  = forward ? step : -step;
    for (StepHandler handler : stepHandlers) {
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          }
          yTmp[j] = y[j] + stepSize * sum;
      }

      // discrete events handling
      interpolator.storeTime(stepStart + stepSize);
      System.arraycopy(yTmp, 0, y, 0, y0.length);
      System.arraycopy(yDotK[stages - 1], 0, yDotTmp, 0, y0.length);
      stepStart = acceptStep(interpolator, y, yDotTmp, t);

      if (!isLastStep) {
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