Examples of DummyStepInterpolator

org.apache.commons.math.ode.sampling.DummyStepInterpolator
This class is a step interpolator that does nothing.
This class is used when the {@link StepHandler "step handler"}set up by the user does not need step interpolation. It does not recompute the state when {@link AbstractStepInterpolator#setInterpolatedTime setInterpolatedTime} is called. This implies the interpolated stateis always the state at the end of the current step.
@see StepHandler @version $Revision: 1037327 $ $Date: 2010-11-20 21:57:37 +0100 (sam. 20 nov. 2010) $ @since 1.2
org.apache.commons.math3.ode.sampling.DummyStepInterpolator
This class is a step interpolator that does nothing.
This class is used when the {@link StepHandler "step handler"}set up by the user does not need step interpolation. It does not recompute the state when {@link AbstractStepInterpolator#setInterpolatedTime setInterpolatedTime} is called. This implies the interpolated stateis always the state at the end of the current step.
@see StepHandler @since 1.2

Examples of org.apache.commons.math.ode.sampling.DummyStepInterpolator

    if (requiresDenseOutput() || (! eventsHandlersManager.isEmpty())) {
      final RungeKuttaStepInterpolator rki = (RungeKuttaStepInterpolator) prototype.copy();
      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;

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Examples of org.apache.commons.math.ode.sampling.DummyStepInterpolator

    if (denseOutput || (! eventsHandlersManager.isEmpty())) {
      interpolator = new GraggBulirschStoerStepInterpolator(y, yDot0,
                                                            y1, yDot1,
                                                            yMidDots, forward);
    } else {
      interpolator = new DummyStepInterpolator(y, yDot1, forward);
    }
    interpolator.storeTime(t0);


    stepStart = t0;
    double  hNew             = 0;

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Examples of org.apache.commons.math.ode.sampling.DummyStepInterpolator

    if (requiresDenseOutput() || (! eventsHandlersManager.isEmpty())) {
      final RungeKuttaStepInterpolator rki = (RungeKuttaStepInterpolator) prototype.copy();
      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;

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

      }
      return false; // no allowable error
  }


  private StepInterpolator buildInterpolator(double t0, double[] y0, double t1) {
      DummyStepInterpolator interpolator  = new DummyStepInterpolator(y0, new double[y0.length], t1 >= t0);
      interpolator.storeTime(t0);
      interpolator.shift();
      interpolator.storeTime(t1);
      return interpolator;
  }

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

            public void computeDerivatives(double t, double[] y, double[] yDot) {
            }
        }));


        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);


        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));


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


    }

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

        EventState es = new EventState(closeEventsGenerator, 1.5 * gap,
                                       tolerance, 100,
                                       new BrentSolver(tolerance));


        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);


        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));


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


    }

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

      }
      return false; // no allowable error
  }


  private StepInterpolator buildInterpolator(double t0, double[] y0, double t1) {
      DummyStepInterpolator interpolator  = new DummyStepInterpolator(y0, new double[y0.length], t1 >= t0);
      interpolator.storeTime(t0);
      interpolator.shift();
      interpolator.storeTime(t1);
      return interpolator;
  }

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

      }
      return false; // no allowable error
  }


  private StepInterpolator buildInterpolator(double t0, double[] y0, double t1) {
      DummyStepInterpolator interpolator  = new DummyStepInterpolator(y0, new double[y0.length], t1 >= t0);
      interpolator.storeTime(t0);
      interpolator.shift();
      interpolator.storeTime(t1);
      return interpolator;
  }

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Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator

        EventState es = new EventState(closeEventsGenerator, 1.5 * gap,
                                       tolerance, 100,
                                       new BrentSolver(tolerance));


        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);


        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));


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


    }

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