ray.java

来自「MPI for java for Distributed Programming」· Java 代码 · 共 51 行

/**************************************************************************
*                                                                         *
*             Java Grande Forum Benchmark Suite - MPJ Version 1.0         *
*                                                                         *
*                            produced by                                  *
*                                                                         *
*                  Java Grande Benchmarking Project                       *
*                                                                         *
*                                at                                       *
*                                                                         *
*                Edinburgh Parallel Computing Centre                      *
*                                                                         *
*                email: [e-mail]                     *
*                                                                         *
*                 Original version of this code by                        *
*            Florian Doyon ([e-mail])                *
*              and  Wilfried Klauser ([e-mail])                   *
*                                                                         *
*      This version copyright (c) The University of Edinburgh, 2001.      *
*                         All rights reserved.                            *
*                                                                         *
**************************************************************************/
package jgf_mpj_benchmarks.section3.raytracer;


//package raytracer; 


final public class Ray {
	public Vec P, D;

	public Ray(Vec pnt, Vec dir) {
		P = new Vec(pnt.x, pnt.y, pnt.z);
		D = new Vec(dir.x, dir.y, dir.z);
		D.normalize();
	}

	public Ray() {
		P = new Vec();
		D = new Vec();
	}

	public Vec point(double t) {
		return new Vec(P.x + D.x * t, P.y + D.y * t, P.z + D.z * t);
	}

	public String toString() {
		return "{" + P.toString() + " -> " + D.toString() + "}";
	}
}