public static PointPairList ToSlice(this PointPairList list, double min, double max)
{
if (max <= min) { min = 0; max = 1; }
PointPairList temp = new PointPairList();
int minindex = list.IndexOf(list.FirstOrDefault(a => a.X >= min));
minindex = minindex < 0 ? 0 : minindex;
int maxindex = list.FindLastIndex(delegate(PointPair pp) { return pp.X <= max; });
temp.AddRange(list.GetRange(minindex, maxindex - minindex));
return temp;
}
private PointPairList getPoints(Type t, string field, int channel)
{
PointPairList p = new PointPairList();
lock (uavobjectData)
{
p.AddRange(
uavobjectData.Where(j => j.type == t && j.fieldName == field && j.channel == channel)
.Select(h =>
new PointPair(
(double)h.timestamp,
h.value
)
));
}
return p;
}