private void formsPlot1_MouseMove(object sender, MouseEventArgs e)
{
double mouseX = formsPlot1.Plot.GetCoordinateX(e.Location.X);
double mouseY = formsPlot1.Plot.GetCoordinateY(e.Location.Y);
sph.HighlightClear();
var(x, y, index) = sph.HighlightPointNearest(mouseX, mouseY);
formsPlot1.Render();
label1.Text = $"Closest point to ({mouseX:N2}, {mouseY:N2}) " +
$"is index {index} ({x:N2}, {y:N2})";
if (cbTooltip.Checked)
{
PointF highlightedPoint = new PointF(formsPlot1.Plot.GetPixelX(x), formsPlot1.Plot.GetPixelY(y));
double dX = e.Location.X - highlightedPoint.X;
double dY = e.Location.Y - highlightedPoint.Y;
double distanceToPoint = Math.Sqrt(dX * dX + dY * dY);
if (distanceToPoint < 15)
{
tooltip.Show($"{x}, {y}", this,
(int)highlightedPoint.X + formsPlot1.Location.X,
(int)highlightedPoint.Y + formsPlot1.Location.Y);
}
else
{
tooltip.Hide(this);
}
}
}
private void formsPlot1_MouseMove(object sender, MouseEventArgs e)
{
(double x, double y) = formsPlot1.GetMouseCoordinates();
vline.position = x;
hline.position = y;
sph.HighlightClear();
sph.HighlightPointNearest(x, y);
formsPlot1.Render();
}
private void wpfPlot1_MouseMove(object sender, MouseEventArgs e)
{
(double mouseX, double mouseY) = wpfPlot1.GetMouseCoordinates();
sph.HighlightClear();
var(x, y, index) = sph.HighlightPointNearest(mouseX, mouseY);
wpfPlot1.Render();
label1.Content = $"Closest point to ({mouseX:N2}, {mouseY:N2}) " +
$"is index {index} ({x:N2}, {y:N2})";
}