| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 org.apache.poi.xddf.usermodel; |
| |
| public class Angles { |
| /** |
| * OOXML represents an angle in 60,000ths of a degree. |
| * |
| * Positive angles are clockwise (i.e., towards the positive y axis); |
| * negative angles are counter-clockwise (i.e., towards the negative y axis). |
| */ |
| public static final int OOXML_DEGREE = 60_000; |
| |
| public static final int degreesToAttribute(double angle) { |
| return Math.toIntExact(Math.round(OOXML_DEGREE * angle)); |
| } |
| |
| public static final double attributeToDegrees(int angle) { |
| return angle / ((double) OOXML_DEGREE); |
| } |
| } |