001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.geometry.io.euclidean.threed; 018 019import java.util.Collections; 020import java.util.List; 021 022import org.apache.commons.geometry.io.core.GeometryFormat; 023 024/** Enum containing 3D geometry formats supported internally by Apache Commons Geometry. 025 */ 026public enum GeometryFormat3D implements GeometryFormat { 027 028 /** Value representing the OBJ file format. 029 * @see <a href="https://en.wikipedia.org/wiki/Wavefront_.obj_file">Wavefront .obj file</a> 030 */ 031 OBJ("obj"), 032 033 /** Value representing the STL file format in both the text (i.e. "ASCII") and binary forms. 034 * @see <a href="https://en.wikipedia.org/wiki/STL_(file_format)">STL</a> 035 */ 036 STL("stl"), 037 038 /** Value representing a simple, <em>non-standard</em> text geometry format that defines facets one per line 039 * by listing the coordinates of the facet vertices in order, separated by non-numeric characters (e.g. whitespace, 040 * commas, semicolons, etc). Each line follows the pattern 041 * <p> 042 * <code> 043 * p1<sub>x</sub> p1<sub>y</sub> p1<sub>z</sub> p2<sub>x</sub> p2<sub>y</sub> p2<sub>z</sub> p3<sub>x</sub> p3<sub>y</sub> p3<sub>z</sub> ... 044 * </code> 045 * </p> 046 * <p>where the <em>p1</em> elements contain the coordinates of the first facet vertex, 047 * <em>p2</em> those of the second, and so on. Facets may have 3 or more vertices and do not need to all have 048 * the same number of vertices. 049 * 050 * <p>This format is non-standard and no guarantees are made regarding its compatibility with other systems. 051 * It is intended primarily to provide a convenient, human-readable format for data input and analysis.</p> 052 * @see org.apache.commons.geometry.io.euclidean.threed.txt.TextFacetDefinitionReader 053 * @see org.apache.commons.geometry.io.euclidean.threed.txt.TextFacetDefinitionWriter 054 */ 055 TXT("txt"), 056 057 /** Value representing a simple, <em>non-standard</em> CSV geometry format that defines triangular facets 058 * one per line by listing the facet vertex coordinates in order, separated by commas. This format is a subset 059 * of the {@link #TXT} format with commas as separators and facets written as triangles (to ensure that 060 * all rows have the same number of columns). 061 * 062 * <p>This format is non-standard and no guarantees are made regarding its compatibility with other systems. 063 * It is intended primarily to provide a convenient, human-readable format for data input and analysis.</p> 064 * @see org.apache.commons.geometry.io.euclidean.threed.txt.TextFacetDefinitionWriter#csvFormat(java.io.Writer) 065 */ 066 CSV("csv"); 067 068 /** List of file extensions associated with the format. The first file extension 069 * listed is taken as the default. 070 */ 071 private final List<String> fileExtensions; 072 073 /** Construct a new instance with the given file extension. 074 * @param fileExt file extension 075 */ 076 GeometryFormat3D(final String fileExt) { 077 this.fileExtensions = Collections.singletonList(fileExt); 078 } 079 080 /** {@inheritDoc} */ 081 @Override 082 public String getFormatName() { 083 return name(); 084 } 085 086 /** {@inheritDoc} */ 087 @Override 088 public String getDefaultFileExtension() { 089 return fileExtensions.get(0); 090 } 091 092 /** {@inheritDoc} */ 093 @Override 094 public List<String> getFileExtensions() { 095 return fileExtensions; 096 } 097}