/*
* Copyright (c) 2011-2013, Peter Abeles. All Rights Reserved.
*
* This file is part of BoofCV (http://boofcv.org).
*
* 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 boofcv.numerics;
/**
* Do linear interpolation between points in an array. Sample points must be positive and less than one minus
* the array's index.
*
* @author Peter Abeles
*/
public class InterpolateArray {
public double data[];
public double value;
private int end;
public InterpolateArray(double[] data) {
this.data = data;
end = data.length-1;
}
public boolean interpolate( double where ) {
if( where < 0 )
return false;
int index = (int)where;
if( index >= end )
return false;
double w = where-index;
value = data[index]*(1.0-w) + data[index+1]*w;
return true;
}
}