Example usage for org.apache.commons.math.optimization.univariate BrentOptimizer getIterationCount

Introduction

In this page you can find the example usage for org.apache.commons.math.optimization.univariate BrentOptimizer getIterationCount.

Prototype

public int getIterationCount() 

Source Link

Usage

From source file:OughtaFocus.java

private double runAutofocusAlgorithm() throws Exception {
    UnivariateRealFunction scoreFun = new UnivariateRealFunction() {
        public double value(double d) throws FunctionEvaluationException {
            try {
                return measureFocusScore(d);
            } catch (Exception e) {
                throw new FunctionEvaluationException(e, d);
            }/* ww w .  j a v  a 2 s  . c  om*/
        }
    };
    BrentOptimizer brentOptimizer = new BrentOptimizer();
    brentOptimizer.setAbsoluteAccuracy(tolerance);
    imageCount_ = 0;

    CMMCore core = app_.getMMCore();
    double z = core.getPosition(core.getFocusDevice());
    startZUm_ = z;
    //      getCurrentFocusScore();
    double zResult = brentOptimizer.optimize(scoreFun, GoalType.MAXIMIZE, z - searchRange / 2,
            z + searchRange / 2);
    ReportingUtils.logMessage("OughtaFocus Iterations: " + brentOptimizer.getIterationCount() + ", z="
            + TextUtils.FMT2.format(zResult) + ", dz=" + TextUtils.FMT2.format(zResult - startZUm_) + ", t="
            + (System.currentTimeMillis() - startTimeMs_));
    return zResult;
}

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