void InitRanges()
{
//实例化透明度交集
m_IntersectRanges = new List <fyTransparentRange>();
//fyGrid数据的范围
List <Interval> AllIntervals = new List <Interval>();
AllIntervals.Add(new Interval(m_Range.Min, m_Range.Max));
//用户设置的范围
List <Interval> UserIntervals = new List <Interval>();
foreach (var range in m_UserRanges)
{
double Min = range.Min;
double Max = range.Max;
//如果range的Min等于Max，即范围仅仅是一个点，那么对其进行修正
//对Min加EPSILON，同时对Max减EPSILON，使其成为一个有效的范围
if (range.Min == range.Max)
{
Min = Min + EPSILON;
Max = Max - EPSILON;
}
UserIntervals.Add(new Interval(Min, Max));
}
//用户设置的范围补集
List <Interval> UserIntervals_补集 = Interval.Complement(UserIntervals);
//计算透明的范围
var IntersectIntervals_透明 = Interval.Intersection(AllIntervals, UserIntervals);
//计算不透明的范围
var IntersectIntervals_不透明 = Interval.Intersection(AllIntervals, UserIntervals_补集);
foreach (var interval in IntersectIntervals_透明)
{
if (interval.lowerbound == interval.upperbound)
{
continue;
}
fyTransparentRange range = new fyTransparentRange();
range.Min = interval.lowerbound;
range.Max = interval.upperbound;
range.Transparent = true;
m_IntersectRanges.Add(range);
}
foreach (var interval in IntersectIntervals_不透明)
{
if (interval.lowerbound == interval.upperbound)
{
continue;
}
fyTransparentRange range = new fyTransparentRange();
range.Min = interval.lowerbound;
range.Max = interval.upperbound;
range.Transparent = false;
m_IntersectRanges.Add(range);
}
//进行排序
m_IntersectRanges = m_IntersectRanges.OrderBy(a => a.Min).ThenBy(a => a.Max).ToList();
}