summaryrefslogtreecommitdiffstats
path: root/src/org/jogamp/vecmath/Point4d.java
diff options
context:
space:
mode:
authorCurtis Rueden <[email protected]>2015-11-18 09:10:28 -0600
committerCurtis Rueden <[email protected]>2015-11-27 22:55:12 -0600
commit0bc630ab20ae013225c0c93ff13733457724f143 (patch)
tree92cb5c4bc2ef7440ea2daccecc490092a7bf12f8 /src/org/jogamp/vecmath/Point4d.java
parent89caa5181fae34eaaec6d4e0a40c08ea5d38844e (diff)
Relocate package prefix to org.jogamp.vecmath
Updating the package prefix avoids clashes with old versions of Java 3D. This is especially important on OS X, where Java 3D 1.3 is sometimes present on the java.ext.path, taking precedence over the classpath.
Diffstat (limited to 'src/org/jogamp/vecmath/Point4d.java')
-rw-r--r--src/org/jogamp/vecmath/Point4d.java223
1 files changed, 223 insertions, 0 deletions
diff --git a/src/org/jogamp/vecmath/Point4d.java b/src/org/jogamp/vecmath/Point4d.java
new file mode 100644
index 0000000..8cc9d87
--- /dev/null
+++ b/src/org/jogamp/vecmath/Point4d.java
@@ -0,0 +1,223 @@
+/*
+ * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package org.jogamp.vecmath;
+
+
+/**
+ * A 4 element vector represented by double precision floating point
+ * x,y,z,w coordinates.
+ *
+ */
+public class Point4d extends Tuple4d implements java.io.Serializable {
+
+ // Compatible with 1.1
+ static final long serialVersionUID = 1733471895962736949L;
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified xyzw coordinates.
+ * @param x the x coordinate
+ * @param y the y coordinate
+ * @param z the z coordinate
+ * @param w the w coordinate
+ */
+ public Point4d(double x, double y, double z, double w)
+ {
+ super(x,y,z,w);
+ }
+
+ /**
+ * Constructs and initializes a Point4d from the coordinates contained
+ * in the array.
+ * @param p the array of length 4 containing xyzw in order
+ */
+ public Point4d(double[] p)
+ {
+ super(p);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified Point4d.
+ * @param p1 the Point4d containing the initialization x y z w data
+ */
+ public Point4d(Point4d p1)
+ {
+ super(p1);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified Point4f.
+ * @param p1 the Point4f containing the initialization x y z w data
+ */
+ public Point4d(Point4f p1)
+ {
+ super(p1);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified Tuple4f.
+ * @param t1 the Tuple4f containing the initialization x y z w data
+ */
+ public Point4d(Tuple4f t1)
+ {
+ super(t1);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified Tuple4d.
+ * @param t1 the Tuple4d containing the initialization x y z w data
+ */
+ public Point4d(Tuple4d t1)
+ {
+ super(t1);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d from the specified Tuple3d.
+ * The x,y,z components of this point are set to the corresponding
+ * components of tuple t1. The w component of this point
+ * is set to 1.
+ * @param t1 the tuple to be copied
+ *
+ * @since vecmath 1.2
+ */
+ public Point4d(Tuple3d t1) {
+ super(t1.x, t1.y, t1.z, 1.0);
+ }
+
+
+ /**
+ * Constructs and initializes a Point4d to (0,0,0,0).
+ */
+ public Point4d()
+ {
+ super();
+ }
+
+
+ /**
+ * Sets the x,y,z components of this point to the corresponding
+ * components of tuple t1. The w component of this point
+ * is set to 1.
+ * @param t1 the tuple to be copied
+ *
+ * @since vecmath 1.2
+ */
+ public final void set(Tuple3d t1) {
+ this.x = t1.x;
+ this.y = t1.y;
+ this.z = t1.z;
+ this.w = 1.0;
+ }
+
+
+ /**
+ * Returns the square of the distance between this point and point p1.
+ * @param p1 the first point
+ * @return the square of distance between this point and point p1
+ */
+ public final double distanceSquared(Point4d p1)
+ {
+ double dx, dy, dz, dw;
+
+ dx = this.x-p1.x;
+ dy = this.y-p1.y;
+ dz = this.z-p1.z;
+ dw = this.w-p1.w;
+ return (dx*dx+dy*dy+dz*dz+dw*dw);
+ }
+
+
+ /**
+ * Returns the distance between this point and point p1.
+ * @param p1 the first point
+ * @return the distance between these this point and point p1.
+ */
+ public final double distance(Point4d p1)
+ {
+ double dx, dy, dz, dw;
+
+ dx = this.x-p1.x;
+ dy = this.y-p1.y;
+ dz = this.z-p1.z;
+ dw = this.w-p1.w;
+ return Math.sqrt(dx*dx+dy*dy+dz*dz+dw*dw);
+ }
+
+
+ /**
+ * Computes the L-1 (Manhattan) distance between this point and
+ * point p1. The L-1 distance is equal to:
+ * abs(x1-x2) + abs(y1-y2) + abs(z1-z2) + abs(w1-w2).
+ * @param p1 the other point
+ * @return the L-1 distance
+ */
+ public final double distanceL1(Point4d p1) {
+ return Math.abs(this.x-p1.x) + Math.abs(this.y-p1.y) +
+ Math.abs(this.z-p1.z) + Math.abs(this.w-p1.w);
+ }
+
+ /**
+ * Computes the L-infinite distance between this point and
+ * point p1. The L-infinite distance is equal to
+ * MAX[abs(x1-x2), abs(y1-y2), abs(z1-z2), abs(w1-w2)].
+ * @param p1 the other point
+ * @return the L-infinite distance
+ */
+ public final double distanceLinf(Point4d p1) {
+ double t1, t2;
+ t1 = Math.max( Math.abs(this.x-p1.x), Math.abs(this.y-p1.y));
+ t2 = Math.max( Math.abs(this.z-p1.z), Math.abs(this.w-p1.w));
+
+ return Math.max(t1,t2);
+ }
+
+ /**
+ * Multiplies each of the x,y,z components of the Point4d parameter
+ * by 1/w, places the projected values into this point, and places
+ * a 1 as the w parameter of this point.
+ * @param p1 the source Point4d, which is not modified
+ */
+ public final void project(Point4d p1)
+ {
+ double oneOw;
+
+ oneOw = 1/p1.w;
+ x = p1.x*oneOw;
+ y = p1.y*oneOw;
+ z = p1.z*oneOw;
+ w = 1.0;
+
+ }
+
+
+}