shadowing-vis.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * shadowing-vis.h
- * Copyright (C) 2000 by the University of Southern California
- * $Id: shadowing-vis.h,v 1.3 2005/08/25 18:58:09 johnh Exp $
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program 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 for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- *
- *
- * The copyright of this module includes the following
- * linking-with-specific-other-licenses addition:
- *
- * In addition, as a special exception, the copyright holders of
- * this module give you permission to combine (via static or
- * dynamic linking) this module with free software programs or
- * libraries that are released under the GNU LGPL and with code
- * included in the standard release of ns-2 under the Apache 2.0
- * license or under otherwise-compatible licenses with advertising
- * requirements (or modified versions of such code, with unchanged
- * license). You may copy and distribute such a system following the
- * terms of the GNU GPL for this module and the licenses of the
- * other code concerned, provided that you include the source code of
- * that other code when and as the GNU GPL requires distribution of
- * source code.
- *
- * Note that people who make modified versions of this module
- * are not obligated to grant this special exception for their
- * modified versions; it is their choice whether to do so. The GNU
- * General Public License gives permission to release a modified
- * version without this exception; this exception also makes it
- * possible to release a modified version which carries forward this
- * exception.
- *
- */
- /*
- * Visibiliy-based Shadowing propation model. A bitmap is used for the
- * simulation environment. It has 2 shadowing model instances that
- * represent good (has line-of-sight path) and bad (obstructed)
- * propagation conditions.
- * Wei Ye, weiye@isi.edu, 2000
- */
- #ifndef visibiliy_shadowing_h
- #define visibiliy_shadowing_h
- #include <shadowing.h>
- #include <packet-stamp.h>
- #include <wireless-phy.h>
- #include <propagation.h>
- class ShadowingVis : public Propagation {
- public:
- ShadowingVis();
- virtual double Pr(PacketStamp *tx, PacketStamp *rx, WirelessPhy *ifp);
- virtual double getDist(double Pr, double Pt, double Gt, double Gr,
- double hr, double ht, double L, double lambda) {
- return DBL_MAX;
- }
-
- virtual int command(int argc, const char*const* argv);
-
- // bitmap handling
- void loadImg(const char* fname);
- inline char get_pixel(int x, int y) {
- if (x<0 || x>=width || y<0 || y>=height) return 0;
- return pixel[x + y * width];
- }
- /*
- inline void set_pixel(int x, int y, char c) {
- if (x<0 || x>=width || y<0 || y>=height) return;
- pixel[(x + y * width)] = c;
- }
-
- inline unsigned int RGB( int r, int g, int b ) {
- return (((r << 8) | g) << 8) | b;
- }
- */
- // get prop condition: good or bad
- int getPropCond(float xr, float yr, float xt, float yt);
- protected:
- Shadowing *goodProp, *badProp; // two shadowing models
- unsigned char *pixel; // bitmap pixels
- int width, height;
- int ppm; // number of pixels per meter
- };
- #endif