?? prg12_1.cpp
字號:
#include <iostream.h>
#pragma hdrstop
#include "graphlib.h"
#include "geometry.h"
void main(void)
{
// declare objects C, D with fill patterns 7 and no fill
Circle C(1.0,1.0,0.5,7), D(2.0,1.0,.33);
char eol; // used to delay before drawing figures
cout << "Coordinates of C are "<< C.GetX() << " and "
<< C.GetY() << endl;
cout << "Circumference of C is " << C.Perimeter()
<< endl;
cout << "Area of C is " << C.Area() << endl;
cout << "Type <return> to view figures:";
cin.get(eol); // wait until newline is typed
// system dependent call to initialize the drawing surface.
InitGraphics();
// draw circle C with fill pattern 7 and radius 0.5
C.Draw();
// draw circle D with default fill pattern 0 and radius 0.33
D.Draw();
// relocate circle D to (1.5,1.8); radius to 0.25; fill to 11
D.SetPoint(1.5,1.8);
D.SetRadius(.25);
D.SetFill(11);
D.Draw();
// delay for client input and shut down graphics
ViewPause();
ShutdownGraphics();
}
/*
<Run of Program 12.1>
Coordinates of C are 1 and 1
Circumference of C is 3.14159
Area of C is 0.785398
Type <return> to view figures:
*/
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