#include?“Graphbase.h“
#include?
#include?

double?dist（PointEx?p1?PointEx?p2）?{
	return（sqrt（（p1.x?-?p2.x）*（p1.x?-?p2.x）?+?（p1.y?-?p2.y）*（p1.y?-?p2.y）））;
}

bool?equalPoint（PointEx?p1?PointEx?p2）?{
	return?（（fabs（p1.x?-?p2.x）}

double?multiply（PointEx?sp?PointEx?ep?PointEx?op）?{
	return（（sp.x?-?op.x）*（ep.y?-?op.y）?-?（ep.x?-?op.x）*（sp.y?-?op.y））;
}

double?dotMultiply（PointEx?p1?PointEx?p2?PointEx?p0）?{
	return?（（p1.x?-?p0.x）*（p2.x?-?p0.x）?+?（p1.y?-?p0.y）*（p2.y?-?p0.y））;
}

bool?online（LineSegment?l?PointEx?p）?{
	return（（multiply（l.endPoint?p?l.startPoint）?==?0）?
		???&&?（（（p.x?-?l.startPoint.x）*（p.x?-?l.endPoint.x）?<=?0）?&&?（（p.y?-?l.startPoint.y）*（p.y?-?l.endPoint.y）?<=?0）））;
}

PointEx?rotate（PointEx?o?double?d?PointEx?p）?{
	PointEx?tp;
	p.x?-=?o.x;
	p.y?-=?o.y;
	tp.x?=?p.x*cos（d）?-?p.y*sin（d）?+?o.x;
	tp.y?=?p.y*cos（d）?+?p.x*sin（d）?+?o.y;
	return?tp;
}

double?angle（PointEx?o?PointEx?s?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-09-16?21:38??Debug\
?????文件????????1319??2018-09-16?21:38??Debug\MyGraphCal.Build.CppClean.log
?????文件??????????95??2018-09-16?21:38??Debug\MyGraphCal.log
?????目錄???????????0??2018-09-16?21:38??Debug\MyGraphCal.tlog\
?????目錄???????????0??2018-09-16?21:38??GeneratedFiles\
?????文件???????38546??2018-09-15?16:49??Graph.h
?????文件???????26507??2018-09-16?20:39??Graphbase.cpp
?????文件???????13337??2018-09-16?18:06??Graphbase.h
?????文件????????7154??2018-09-16?21:11??MyGraphCal.cpp
?????文件????????1219??2018-09-16?21:00??MyGraphCal.h
?????文件??????????70??2018-09-15?16:50??MyGraphCal.qrc
?????文件????????1055??2018-09-15?19:42??MyGraphCal.ui
?????文件????????9185??2018-09-15?16:51??MyGraphCal.vcxproj
?????文件????????2531??2018-09-15?16:51??MyGraphCal.vcxproj.filters
?????文件?????????813??2018-09-16?17:23??MyGraphCal.vcxproj.user
?????目錄???????????0??2018-09-16?21:38??Resources\
?????文件?????????191??2018-09-15?16:50??main.cpp