00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */ 00002 /* 00003 * Copyright (c) 1997 Regents of the University of California. 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. All advertising materials mentioning features or use of this software 00015 * must display the following acknowledgement: 00016 * This product includes software developed by the Computer Systems 00017 * Engineering Group at Lawrence Berkeley Laboratory. 00018 * 4. Neither the name of the University nor of the Laboratory may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 */ 00034 /* Ported from CMU/Monarch's code, nov'98 -Padma. 00035 00036 antenna.h 00037 super class for all antenna types 00038 */ 00039 00040 #ifndef ns_antenna_h 00041 #define ns_antenna_h 00042 00043 #include "object.h" 00044 #include "lib/bsd-list.h" 00045 00046 class Antenna; 00047 LIST_HEAD(an_head, Antenna); 00048 00049 class Antenna : public TclObject { 00050 00051 public: 00052 Antenna(); 00053 00054 virtual double getTxGain(double /*dX*/, double /*dY*/, double /*dZ*/, 00055 double /*lambda*/); 00056 // return the gain for a signal to a node at vector dX, dY, dZ 00057 // from the transmitter at wavelength lambda 00058 00059 virtual double getRxGain(double /*dX*/, double /*dY*/, double /*dZ*/, 00060 double /*lambda*/); 00061 // return the gain for a signal from a node at vector dX, dY, dZ 00062 // from the receiver at wavelength lambda 00063 00064 virtual Antenna * copy(); 00065 // return a pointer to a copy of this antenna that will return the 00066 // same thing for get{Rx,Tx}Gain that this one would at this point 00067 // in time. This is needed b/c if a pkt is sent with a directable 00068 // antenna, this antenna may be have been redirected by the time we 00069 // call getTxGain on the copy to determine if the pkt is received. 00070 00071 virtual void release(); 00072 // release a copy created by copy() above 00073 00074 inline void insert(struct an_head* head) { 00075 LIST_INSERT_HEAD(head, this, link); 00076 } 00077 00078 virtual inline double getX() {return X_;} 00079 virtual inline double getY() {return Y_;} 00080 virtual inline double getZ() {return Z_;} 00081 00082 private: 00083 LIST_ENTRY(Antenna) link; 00084 00085 protected: 00086 double X_; // position w.r.t. the node 00087 double Y_; 00088 double Z_; 00089 }; 00090 00091 00092 #endif // ns_antenna_h
1.7.1