polygon.cpp

/*
 * polygon.cpp
 * 4/13/2016
 * 
 * CS 372 Sp16
 * Group Project 2: Postscript Generator
 */

#include "polygon.h"

/**
 * @brief generates ps code for drawing a polygon
 * @details returns a string containing the ps code for drawing any equilateral polygon
 * @return string containing ps code
 */
string Polygon::draw() const
{
	return draw(x_,y_);
}

/**
 * @brief generates ps code for drawing a polygon
 * @details returns a string containing the ps code for drawing any equilateral polygon
 * 
 * @param x x position of center
 * @param y y position of center
 * 
 * @return string containing ps code
 */
string Polygon::draw(int x,int y) const{
	stringstream ss;

	ss << psHeader(x,y);

	double vertexX = calcX(0,numOfSides_,sideLength_);
	double vertexY = calcY(0,numOfSides_,sideLength_);
	ss << psMove(vertexX,vertexY);

	for(int i = 1; i < numOfSides_; i++){
		vertexX = calcX(i,numOfSides_,sideLength_);
		vertexY = calcY(i,numOfSides_,sideLength_);
		ss << psLine(vertexX,vertexY);
	}

	ss << psFooter();

	return ss.str();
}

int Polygon::numOfSides(){
	return numOfSides_;
}
double Polygon::sideLength(){
	return sideLength_;
}
double Polygon::radius(){
	return radius_;
}