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/*
* Copyright 2014 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.unitgen;
import com.jsyn.ports.UnitInputPort;
/**
* Convert an input signal between -1.0 and +1.0 to the range min to max. This is handy when using
* an oscillator as a modulator.
*
* @author (C) 2014 Phil Burk, Mobileer Inc
* @see EdgeDetector
*/
public class RangeConverter extends UnitFilter {
public UnitInputPort min;
public UnitInputPort max;
/* Define Unit Ports used by connect() and set(). */
public RangeConverter() {
addPort(min = new UnitInputPort("Min", 40.0));
addPort(max = new UnitInputPort("Max", 2000.0));
}
@Override
public void generate(int start, int limit) {
double[] inputs = input.getValues();
double[] mins = min.getValues();
double[] maxs = max.getValues();
double[] outputs = output.getValues();
for (int i = start; i < limit; i++) {
double low = mins[i];
outputs[i] = low + ((maxs[i] - low) * (inputs[i] + 1) * 0.5);
}
}
}
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