blob: 7071994eb5d71edda7dab8cd1b5b979cb8573710 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
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;
}
}
|
