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package com.pau101.util;
/**
* @author Paul Fulham (pau101)
*/
public class CubicBezier {
private float[][] controlPoints;
public CubicBezier(float a1, float b1, float a2, float b2) {
controlPoints = new float[4][];
controlPoints[0] = new float[] {
0, 0
};
controlPoints[1] = new float[] {
a1, b1
};
controlPoints[2] = new float[] {
a2, b2
};
controlPoints[3] = new float[] {
1, 1
};
}
public float eval(float t) {
float[] scalars = new float[4];
BezierUtils.allBernstein(3, t, scalars);
float p = 0;
for (int i = 0; i < 4; i++)
p += scalars[i] * controlPoints[i][1];
return p;
}
}
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