com.golemgame.functional.functions.PolynomialFunctionView.java Source code

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Here is the source code for com.golemgame.functional.functions.PolynomialFunctionView.java

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/*******************************************************************************
 * Copyright 2008, 2009, 2010 Sam Bayless.
 * 
 *     This file is part of Golems.
 * 
 *     Golems is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     Golems is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with Golems. If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package com.golemgame.functional.functions;

import org.apache.commons.math.analysis.PolynomialFunction;
import org.apache.commons.math.analysis.UnivariateRealFunction;

import com.golemgame.mvc.CollectionType;
import com.golemgame.mvc.DataType;
import com.golemgame.mvc.DoubleType;
import com.golemgame.mvc.PropertyStore;
import com.golemgame.mvc.golems.functions.PolynomialFunctionInterpreter;

public class PolynomialFunctionView extends SustainedFunctionView {

    private final PolynomialFunctionInterpreter interpreter;

    public PolynomialFunctionView(PropertyStore store) {
        super(store);
        interpreter = new PolynomialFunctionInterpreter(store);
    }

    @Override
    public UnivariateRealFunction getFunction() {

        CollectionType coefficients = interpreter.getCoefficients();
        int i = 0;
        double[] co = new double[coefficients.getValues().size()];
        for (DataType data : coefficients.getValues()) {
            if (data.getType() == DataType.Type.DOUBLE) {
                co[i] = ((DoubleType) data).getValue();
            }
            i++;
        }
        if (co.length <= 0)
            co = new double[] { 0 };
        return new PolynomialFunction(co);
    }

}