public void Show(VotingResults votingResults, Func <Vote, bool> filter)
{
lock (_plotModel.SyncRoot)
{
_xAxis.SetMinMaxBlocksToXAxis(votingResults);
_plotModel.Series.Clear();
var series = new LineSeries()
{
CanTrackerInterpolatePoints = false
};
_plotModel.Series.Add(series);
var points = votingResults.Votes
.Where(x => filter(x))
.GroupBy(x => x.BlockNumber, (key, votes) => (blockNumber: key, votesCount: votes.Count()))
.OrderBy(x => x.blockNumber)
.ToArray();
ref var lastPoint = ref points[0];
series.Points.Add(new DataPoint(lastPoint.blockNumber, lastPoint.votesCount));
int maxVotes = lastPoint.votesCount;
for (int i = 1; i < points.Length; i++)
{
ref var currentPoint = ref points[i];
for (int point = lastPoint.blockNumber + 1; point < currentPoint.blockNumber; point++)
{
series.Points.Add(new DataPoint(point, 0));
}
if (currentPoint.votesCount > maxVotes)
{
maxVotes = currentPoint.votesCount;
}
series.Points.Add(new DataPoint(currentPoint.blockNumber, currentPoint.votesCount));
lastPoint = currentPoint;
}