001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019/*
020*
021
022Licensed under the Apache License, Version 2.0 (the "License");
023you may not use this file except in compliance with the License.
024You may obtain a copy of the License at
025
026   http://www.apache.org/licenses/LICENSE-2.0
027
028Unless required by applicable law or agreed to in writing, software
029distributed under the License is distributed on an "AS IS" BASIS,
030WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
031See the License for the specific language governing permissions and
032limitations under the License.
033*/
034
035package lucee.runtime.img.vecmath;
036
037/**
038 * Vector math package, converted to look similar to javax.vecmath.
039 */
040public class Tuple3f {
041        public float x, y, z;
042
043        public Tuple3f() {
044                this( 0, 0, 0 );
045        }
046        
047        public Tuple3f( float[] x ) {
048                this.x = x[0];
049                this.y = x[1];
050                this.z = x[2];
051        }
052
053        public Tuple3f( float x, float y, float z ) {
054                this.x = x;
055                this.y = y;
056                this.z = z;
057        }
058
059        public Tuple3f( Tuple3f t ) {
060                this.x = t.x;
061                this.y = t.y;
062                this.z = t.z;
063        }
064
065        public void absolute() {
066                x = Math.abs(x);
067                y = Math.abs(y);
068                z = Math.abs(z);
069        }
070
071        public void absolute( Tuple3f t ) {
072                x = Math.abs(t.x);
073                y = Math.abs(t.y);
074                z = Math.abs(t.z);
075        }
076
077        public void clamp( float min, float max ) {
078                if ( x < min )
079                        x = min;
080                else if ( x > max )
081                        x = max;
082                if ( y < min )
083                        y = min;
084                else if ( y > max )
085                        y = max;
086                if ( z < min )
087                        z = min;
088                else if ( z > max )
089                        z = max;
090        }
091
092        public void set( float x, float y, float z ) {
093                this.x = x;
094                this.y = y;
095                this.z = z;
096        }
097
098        public void set( float[] x ) {
099                this.x = x[0];
100                this.y = x[1];
101                this.z = x[2];
102        }
103
104        public void set( Tuple3f t ) {
105                x = t.x;
106                y = t.y;
107                z = t.z;
108        }
109
110        public void get( Tuple3f t ) {
111                t.x = x;
112                t.y = y;
113                t.z = z;
114        }
115
116        public void get( float[] t ) {
117                t[0] = x;
118                t[1] = y;
119                t[2] = z;
120        }
121
122        public void negate() {
123                x = -x;
124                y = -y;
125                z = -z;
126        }
127
128        public void negate( Tuple3f t ) {
129                x = -t.x;
130                y = -t.y;
131                z = -t.z;
132        }
133
134        public void interpolate( Tuple3f t, float alpha ) {
135                float a = 1-alpha;
136                x = a*x + alpha*t.x;
137                y = a*y + alpha*t.y;
138                z = a*z + alpha*t.z;
139        }
140
141        public void scale( float s ) {
142                x *= s;
143                y *= s;
144                z *= s;
145        }
146
147        public void add( Tuple3f t ) {
148                x += t.x;
149                y += t.y;
150                z += t.z;
151        }
152
153        public void add( Tuple3f t1, Tuple3f t2 ) {
154                x = t1.x+t2.x;
155                y = t1.y+t2.y;
156                z = t1.z+t2.z;
157        }
158
159        public void sub( Tuple3f t ) {
160                x -= t.x;
161                y -= t.y;
162                z -= t.z;
163        }
164
165        public void sub( Tuple3f t1, Tuple3f t2 ) {
166                x = t1.x-t2.x;
167                y = t1.y-t2.y;
168                z = t1.z-t2.z;
169        }
170
171        public void scaleAdd( float s, Tuple3f t ) {
172                x += s*t.x;
173                y += s*t.y;
174                z += s*t.z;
175        }
176        
177        public void scaleAdd( float s, Tuple3f t1, Tuple3f t2 ) {
178                x = s*t1.x + t2.x;
179                y = s*t1.y + t2.y;
180                z = s*t1.z + t2.z;
181        }
182        
183        public String toString() {
184                return "["+x+", "+y+", "+z+"]";
185        }
186        
187}