arc.cpp

我自己写的代码 可能比较简单 我实现了模拟图层的功能

///////////////////////////////////////////////////////////
//  Arc.cpp
//  Implementation of the Class Arc
//  Created on:      18-二月-2009 17:17:24
//  Original author: pangyj
///////////////////////////////////////////////////////////
#include "StdAfx.h"
#include "Arc.h"


Arc::Arc():GeometryPrimitive(){

}
Arc::Arc(Point2D pt,double r,double ds,double de):GeometryPrimitive(),centerPt(pt),dRadius(r),
dStartAngle(ds),dEndAngle(de){

}
Arc::~Arc(){

}

const Point2D & Arc::center()const{

	return  this->centerPt;
}


ErrorStatus Arc::center(Point2D & pt){

	this->centerPt = pt;
	return  eOk;
}


ErrorStatus Arc::endAngle(double agle){

	this->dEndAngle = agle;
	return  eOk;
}


double Arc::endAngle()const{

	return this->dEndAngle;
}


double Arc::radius()const{

	return this->dRadius;
}


ErrorStatus Arc::radius(double agle){

	this->dRadius = agle;
	return  eOk;
}


ErrorStatus Arc::read(fstream& f){

	return  eOk;
}


double Arc::startAngle()const{

	return this->dStartAngle;
}


ErrorStatus Arc::startAngle(double agle){
	this->dStartAngle = agle;
	return  eOk;
}


ErrorStatus Arc::write(fstream& f){

	return  eOk;
}
void Arc::list()const
{
	cout<<"========================="<<endl;
	cout <<"type=Arc  ";
	GeometryPrimitive::list();
	EntityObject::list();
	printf("center=(%.3f,%.3f)  radius=%.3f  startAngle=%.3f endAngle=%.3f\n",centerPt.x,centerPt.y,dRadius,dStartAngle,dEndAngle);
}