Here you can find the source of round(float value, float epsilon)
public static float round(float value, float epsilon)
//package com.java2s; /* Copyright 2009 - 2010 The Stajistics Project * * 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.//from w w w .jav a 2s . co m */ public class Main { /** * discretizes values to nearest finite resolution real number determined by epsilon spacing */ public static float round(float value, float epsilon) { return clamp(Math.round(value / epsilon) * epsilon); } /** * clamps a value to 0..1 range */ public static float clamp(float p) { if (p > 1.0f) return 1.0f; if (p < 0.0f) return 0.0f; return p; } }