private void DrawingB_MouseMove(object sender, MouseEventArgs e)
{
HitTestResult result = DrawingB.HitTest(e.X, e.Y);
ChartArea chartAreas = DrawingB.ChartAreas[0];
double X = chartAreas.AxisX.PixelPositionToValue(e.X);
double Y = chartAreas.AxisY.PixelPositionToValue(e.Y);
chartAreas.CursorX.Position = X;
chartAreas.CursorY.Position = Y;
if (X >= -1 && Y >= -1 && X <= 256 && Y <= 256)
{
bHystoLabel.Text = "Coordinates " + (int)X + "; " + (int)Y;
}
}
private void DrawingB_Click(object sender, EventArgs e)
{
MouseEventArgs args = (MouseEventArgs)e;
HitTestResult result = DrawingB.HitTest(args.X, args.Y);
ChartArea chartAreas = DrawingB.ChartAreas[0];
int X = (int)chartAreas.AxisX.PixelPositionToValue(args.X);
int Y = (int)chartAreas.AxisY.PixelPositionToValue(args.Y);
if (X >= 0 && X <= 255 && Y >= 0 && Y <= 255)
{
//MessageBox.Show("Coordinates: X " + X + " Y " + Y);
DataPoint[] dataPoints = DrawingB.Series[0].Points.ToArray();
bool xFound = false;
for (int i = 0; i < dataPoints.Length; i++)
{
if (dataPoints[i].XValue == X)
{
dataPoints[i].YValues[0] = Y;
xFound = true;
}
}
DrawingB.Series[0].Points.Clear();
SortedDictionary <int, int> realPoints = new SortedDictionary <int, int>();
foreach (DataPoint point in dataPoints)
{
realPoints.Add((int)point.XValue, (int)point.YValues[0]);
}
if (xFound == false)
{
realPoints.Add(X, Y);
}
foreach (var point in realPoints)
{
DrawingB.Series[0].Points.AddXY(point.Key, point.Value);
}
}
}