c++ GraphX.cpp /* GraphX.hpp * Interface for the GraphX class * This is a simple

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c++

GraphX.cpp

/* GraphX.hpp
* Interface for the GraphX class
* This is a simple user interface that will allow students to utilize
* simple graphics operations in C++ labs. It is mapped onto the Xlib
* graphical library.
*
* Fall 2012 Authors:
* Steve Jensen
* Hengyi Huang
* Spring 2014 Authors:
* Steve Jensen
* Tom Postler
*
* Version 14.04.18
*/

#ifndef GRAPHX_HPP
#define GRAPHX_HPP

#include
#include
using namespace std;

class GraphX
{
public:

// constructors
GraphX(); // default: create a 800 pixel wide x 600 pixel high window
GraphX(int w, int h); // create a w-pixel wide x h-pixel high window
~GraphX(); // destructor: close the x-server connection and remove window

// drawing primitives
void setpos(int x, int y); // move the pen location to x,y
void setposition(int x, int y); // ^^
void setx(int x); // move the pen location to x, unchanged y
void sety(int y); // move the pen location to unchanged x, y
void plot(); // plot current symbol at pen location
void erase(); // erase current symbol at pen location
void penup() {pendn = false;} // pendown state = false
void pu(){penup();} // ^^
void up(){penup();} // ^^
void pendown(){pendn = true;} // pendown state = true
void pd(){pendown();} // ^^
void down(){pendown();} // ^^
void clear(); // fill window with background color
void clearscreen(){clear();} // ^^
void reset(){clear();} // ^^
void resetscreen(){clear();} // ^^
void delay(double secs) // delay start of next GraphX operation
{delaytime = secs;}
void screensize(int x, int y); // clear and resize the GraphX window
void screensize(int x, int y, string c) // ^^ and change color
{backgroundcolor(c); screensize(x,y);}

// appearance
void pencolor(string);        // set pen color
void pensize(int); // set pen size (in pixels)
void width(int w){pensize(w);} // ^^
void penstyle(string);        // solid line, dashes, dots, dash-dot
void symbol(string);        // set the plot symbol
void symbolsize(int); // set the size of the plotted symbol
void backgroundcolor(string);         // set background color

// scaling
void scale(int width, int height); // set pixel units for x & y
void origin(int x, int y); // set the origin to x units, y units
void xaxis( ); // draw a line through the x axis
void yaxis( ); // draw a line through the y axis

// status
bool isopen( ){return openstate;} // return state of graphics environment
bool fail(){return !openstate;} // return status of last operation
bool isdown(){return pendn;} // return pen state (down = true)
int xcor(){return xloc;} // return current pen location
int ycor(){return yloc;} // return current pen location
void position(int &x, int &y); // return current pen x,y location
void pos(int &x, int &y); // ^^
int pensize(){return psize;} // return pen size (in pixels)
int width(){return pensize();} // ^^
void getscreensize(int &x, int &y) // return the current screen size
{x = winwidth; y = winheight;}
int delay(){return delaytime;} // return delay between drawing ops

// extended drawing
void moverel(int dx, int dy); // move relative to current location
void plot(int x, int y); // combine 'move' and 'plot' operations
void plot(string); // set current symbol and plot it
void plot(int,int,string); // combine 'move' and 'plot(symbol')

// input
string input(); // return input status
char eventkey(); // return key event value
void eventxy(int &x, int &y); // return x,y (scaled appropriately)

private:

enum GXColor {BLACK=0, WHITE=1, RED=2, YELLOW=3, BLUE=4, GREEN=5, ORANGE=6,
PURPLE=7};

enum GXLine {SOLID, DOTS, DASH, LONGDASH, DOTDASH};

enum GXSym {CIRCLE, SQUARE, DIAMOND, TRIANGLE, INVTRIANGLE,
SOLIDCIRCLE, SOLIDSQUARE, SOLIDDIAMOND, SOLIDTRIANGLE,
SOLIDINVTRIANGLE};

enum GXEvent {NONE=0, KEYPRESS=1, LEFTBUTTON=2, RIGHTBUTTON=3};

bool openstate; // window is opened and OK to use
int winwidth; // width of window in pixels
int winheight; // height of window in pixels
int xloc; // current pen location (scale units)
int yloc; // current pen location (scale units)
double xscale; // pixels per x unit
double yscale; // pixels per y unit
int xorigin; // optional xorigin value (scale units)
int yorigin; // optional yorigin value (scale units)
double delaytime; // delay next operation by (in microseconds)
GXColor bgcolor; // current background color
int psize; // pen size
GXColor pcolor; // pen color
GXLine pstyle; // pen style
GXSym psymbol; // plotting symbol
int symsize; // size (in pixels) of the plotted symbol
bool pendn; // pen 'down' state (true/false)
GXEvent lastinput; // most recent keyboard/mouse event
char kval; // last keyboard event: key value
int buttonx; // last button event: x location
int buttony; // last button event: y location

//Xlib related data
Display *disp; // the display pointer
int screen; // default screen identifier
Window win; // the main window (added)
XEvent event; // event reporting structure
GC gc; // graphics context for drawing
unsigned long pixelvalues[8]; // color pixel values (mapped at start)

//Private class functions
void wait(); // delay a graphics operation
void setDefaults(); // initialize all the default values
bool openX(int, int); // create and initialize environment
void drawSymbol(GXColor); // draw current symbol
void setLineGC(GXColor); // set the Xlib GC information for a line
int mapX(int); // return pixel offset given x location
int mapY(int); // return pixel offset given y location
GXColor getColor(string);         // string to GXColor conversion
GXLine getLine(string);        // string to GXLine conversion
GXSym getSym(string);         // string to GXSym conversion
};

#endif

sample.cpp

#include
#include
#include "GraphX.hpp" // look here for a list & description of functions
using namespace std;

const int SIZE = 400;

int main()
{
   int xpos = 0; // left
   int ypos = 0; // bottom
   string input;
   GraphX mywin; // the class that does the window for us
   mywin.scale(SIZE, SIZE); // size of window
   mywin.symbol("solidcircle"); // type of thing to draw
   mywin.symbolsize(30); // size of thing to draw
   mywin.pencolor("black"); // color of thing to draw
   input = mywin.input(); // input is from mouse or keyboard
   while(input != "rightbutton") // stop when we right click
   {
       mywin.setpos(xpos, ypos); // look at this point
       mywin.plot(); // draw it (at point set by setpos())
       mywin.delay(0.02); // give you time to see it
       mywin.erase(); // delete thing here (at point set by setpos())

       xpos += 2; // move to the right
       ypos += 1; // move up

       // confine x/ypos to 400x400 square
       xpos = xpos%SIZE;
       ypos = ypos%SIZE;

       input = mywin.input(); // did we right click yet?
   }

   return 0;
}

there is a link to download the GraphX.o

http://www-users.cselabs.umn.edu/classes/Spring-2016/csci1113/labs/lab12/GraphX.o

Workout Now that you are able to plot and draw using GraphX, you are ready to tackle the Forest Fire simulation. This is a discrete simulation that will use basic object-oriented techniques to model trees and forests and visualize the progression of the fire using graphical output.

Explanation / Answer

main.cpp
#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "tree.h"
#include "forest.h"
#include "oak.h"
#include "pine.h"

using namespace std;

int main()
{
double pc, wetness, percent = 0, avg;
int y;

   Tree normaltree;
   Oak oaktree;
   Pine pinetree;
   Tree* treePtr;

   /*for(int i = 1; i < 11; i++)
   {
       for(int j = 1; j< 20; j++)
       {
           green.setGrid(i, j, 0.8, 1, 2.0, 1);
       }
   }*/

   cout << "What is the probability catch?: ";
   cin >> pc;
   cout << "What is the wetness factor?: ";
   cin >> wetness;
   cout << "How many simulations you want?: ";
   cin >> y;
   for(int n = 0; n < y; n++)
   {
       Forest green;
       for(int i = 1; i < 20; i++)
       {
           for(int j = 1; j< 20; j++)
           {
               green.setGrid(i, j, pc, 1, wetness, 1);
           }
       }
       green.setGrid(10, 10, 1.0, 2, 1.0, 1);


       while(green.isBurning() == true)
       {
           //usleep(500000);
           green.regrowth(0.3);
           green.applyNextStatus();

           cout<< green << endl;
       }

       percent += green.percentTrees();

   }

   avg = percent / y;
   cout << "Average percentage of unburning tree: " << avg << endl;

return 0;
}

tree.cpp
#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "tree.h"

using namespace std;

double Tree::getProbCatch()
{
return probCatch;
}

void Tree::setProbCatch(double x)
{
probCatch = x;
}

int Tree::getStatus()
{
return status;
}

void Tree::setStatus(int x)
{
status = x;
}
void showSymbol(ostream& output);
double Tree::getWetness()
{
return wetness;
}

void Tree::setWetness(double x)
{
wetness = x;
}

int Tree::getBurnTime()
{
return burnTime;
}

void Tree::setBurnTime(int x)
{
burnTime = x;
}

ostream& operator << (ostream& output, Tree& arg)
{
   output << arg.type << endl << arg.probCatch << endl << arg.status << endl << arg.wetness << endl << arg.burnTime << endl;
   return output;
}
void Tree::showSymbol(ostream& output)
{
   output << "[33;40m!" << " ";
}

tree.h

#ifndef tree_h
#define tree_h

#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>

using namespace std;

class Tree
{
   public:
       Tree():type("not a tree"), probCatch(1.0), status(0), wetness(1.0), burnTime(1){}
       Tree(string a, double b, int c, double d, int e): type(a), probCatch(b), status(c), wetness(d), burnTime(e){}
       double getProbCatch();
       void setProbCatch(double x);
       int getStatus();
       void setStatus(int x);
       double getWetness();
       void setWetness(double x);
       int getBurnTime();
       void setBurnTime(int x);
       friend ostream& operator << (ostream& output, Tree& arg);
       virtual void showSymbol(ostream& output);
   private:
       string type;
       double probCatch;
       int status;
       double wetness;
       int burnTime;

};

#endif

pine.h
#ifndef pine_h
#define pine_h

#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "tree.h"

using namespace std;

class Pine: public Tree
{
   public:
       Pine(){}
       Pine(string a, double b, int c, double d, int e): Tree(a, b, c, d, e){}
       void showSymbol(ostream& output){ output << "[35;40m^" << " ";}
};

#endif

oak.h
// nguy1952 Danh Nguyen
// leixx080 Rong Lei
#ifndef oak_h
#define oak_h

#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "tree.h"

using namespace std;

class Oak: public Tree
{
   public:
       Oak(){}
       Oak(string a, double b, int c, double d, int e): Tree(a, b, c, d, e){}
       void showSymbol(ostream& output){ output << "[34;40m@" << " ";}
};

#endif

forest.h
#ifndef forest_h
#define forest_h

#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "tree.h"

using namespace std;

class Forest
{
   public:
       Forest();
//       ~Forest();
       int nextStatus(int i, int j);
       void applyNextStatus();
       friend ostream& operator << (ostream& output, Forest& arg);
       bool isBurning();
       void setGrid(int i, int j, double prob, int stat, double wet, int burn);
       void lightning(double a);
       double percentTrees();
       void regrowth(double growprob);
   private:
       Tree* grid[21][21];

};

#endif

forest.cpp
#include <iostream>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cstring>
#include "forest.h"
#include "tree.h"
#include "pine.h"
#include "oak.h"

using namespace std;

Forest::Forest()
{
   srand(time(0));
       for(int j = 0; j < 21; j++)
       {
           grid[j][0] = new Tree("not a tree", 0.0, 0, 1.0, 1);
           grid[j][20] = new Tree("not a tree", 0.0, 0, 1.0, 1);
           grid[0][j] = new Tree("not a tree", 0.0, 0, 1.0, 1);
           grid[20][j] = new Tree("not a tree", 0.0, 0, 1.0, 1);
       }


   for(int n = 1; n < 20; n++)
   {
       for(int m = 1; m < 20; m++)
       {
           if (m % 2 == 0)
               {
                   grid[n][m] = new Pine("pine" , .5 , 1 , 1.0 , 1);
               }
           else
               {
                   grid[n][m] = new Oak("oak" , .5 , 1 , 1.0 , 1);
               }
       }
   }

   grid[10][10] = new Tree("burning tree", 1.0, 2, 1.0, 1);


}

ostream& operator << (ostream& output, Forest& arg)
{

   for(int i = 0; i < 21; i++)
   {
       for(int j = 0; j < 21; j++)
       {
           if(arg.grid[i][j]->getStatus() == 0)
           output << "[0;40m " << " ";
           if(arg.grid[i][j]->getStatus() == 1)

           arg.grid[i][j]->showSymbol(output);
           if(arg.grid[i][j]->getStatus() == 2)
           output << "[91;40m#" << " ";
           if(arg.grid[i][j]->getStatus() == 3)
           output << "[0;40m^" << " ";

       }
       output << endl;
   }

   return output;
}

int Forest::nextStatus(int i, int j)
{
   if(grid[i][j]->getStatus() == 3)
       {
           return 3;
       }

   if(grid[i][j]->getStatus() == 0 || grid[i][j]->getStatus() == 2)
   {
       return 0;
   }

   if(grid[i][j]->getStatus() == 1)
   {
       double xval;
       xval = static_cast<double>(rand()) / (RAND_MAX);

       if((grid[i + 1][j]->getStatus() == 2) || (grid[i - 1][j]->getStatus() == 2) || (grid[i][j + 1]->getStatus() == 2 )|| (grid[i][j - 1]->getStatus() == 2 ))
       {
           if (grid[i][j]->getProbCatch()/grid[i][j]->getWetness() > xval)
           {
               return 2;
           }
           else
           return 1;
       }
       else
       return 1;
   }

   //return grid[i][j].getStatus();
}

void Forest::applyNextStatus()
{
   Tree newGrid[21][21];

   for(int i = 0 ; i < 21 ; i++)
   {
       for (int j = 0 ; j < 21 ; j++)
       {
           newGrid[i][j] = *grid[i][j];
       }
   }
   for(int i = 1; i < 20; i++)
   {
       for(int j = 1; j < 20; j++)
       {
           newGrid[i][j].setStatus(nextStatus(i , j));
           //grid[i][j] = newGrid[i][j];
       }
   }
   for(int i = 0 ; i < 21 ; i++)
   {
       for (int j = 0 ; j < 21 ; j++)
       {
           *grid[i][j] = newGrid[i][j];
       }
   }
}

bool Forest::isBurning()
   {
           for(int i = 1 ; i < 20 ; i++)
           {
               for(int j = 1; j < 20 ; j++)
               {
                   if (grid[i][j]->getStatus() == 2)
                   {
                       return true;
                   }
               }
           }

           return false;
   }

void Forest::setGrid(int i, int j, double prob, int stat, double wet, int burn)
{
   grid[i][j]->setProbCatch(prob);
   grid[i][j]->setStatus(stat);
   grid[i][j]->setWetness(wet);
   grid[i][j]->setBurnTime(burn);

}

void Forest::lightning(double a)
{
   for(int i = 1; i < 20; i++)
   {
       for(int j = 1; j< 20; j++)
       {
           if(grid[i][j]->getStatus() == 1)
           {
               double pval;
               pval = static_cast<double>(rand()) / (RAND_MAX);
               if (pval < a)
               {
                   grid[i][j]->setStatus(2);
                   return;
               }
               else
               grid[i][j]->setStatus(1);

           }
           else
           grid[i][j]->setStatus(1);
       }
   }
}

double Forest::percentTrees()
{
   double x;
   for(int i = 0; i < 21; i++)
   {
       for(int j = 0; j < 21; j++)
       {
           if(grid[i][j]->getStatus() == 1)
           {
               x++;
           }
       }
   }

   return x / 441 * 100;
}

void Forest::regrowth(double growprob)
{
   for(int i = 1; i < 20; i++)
   {
       for(int j = 1; j< 20; j++)
       {
           if(grid[i][j]->getStatus() == 0)
           {
               double pval;
               pval = static_cast<double>(rand()) / (RAND_MAX);
               if (pval < growprob)
               {
                   grid[i][j]->setStatus(3);

               }
               else
               grid[i][j]->setStatus(0);

           }


       }
   }

}

sample output

What is the probability catch?: 5
What is the wetness factor?: 9
How many simulations you want?: 2
@     ^ ^   ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @
@ ^ @ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^
@ ^ @ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ @
@ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^ ^ ^ ^ @ ^ @
@     ^ ^   ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @
@ ^ @ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^
@ ^ @ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ @
@ ^ ^ ^ ^ ^ ^ ^ @ ^ ^ ^ ^ ^ ^ ^ @ ^ @
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ ^ ^ @ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @
@ ^ ^   ^ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @ ^ @
^ ^     ^ ^ ^ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @
@   ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @
@ ^ ^ ^ ^ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ ^ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ ^ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @
@ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @ ^ @


Average percentage of unburning tree: 58.9569

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