private TextObj GetNearestLabel(PointF mousePoint)
{
using (Graphics g = CreateGraphics())
{
object nearestObject;
int index;
if (GraphPane.FindNearestObject(mousePoint, g, out nearestObject, out index))
{
var textObj = nearestObject as TextObj;
if (textObj != null)
return textObj;
}
}
return null;
}
private bool ZedGraphControl1_MouseDownEvent(ZedGraphControl sender, MouseEventArgs e)
{
// find the closest point to the click location
_myPane.FindNearestObject(new PointF(e.X, e.Y), this.CreateGraphics(), out object nearestobject, out int index);
// highlight the index
HighlightIndex(index);
// update the point value boxes
curveIndex.Value = index;
// get current mouse position
lastMousePoint = GetMouseCoords();
// flag that we have the mouse down
mouseDown = true;
// return complete
return(true);
}
// Mouse Events for Moving Interval Lines ...
private bool zgc_MouseDownEvent_1(ZedGraphControl sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && ModifierKeys.HasFlag(Keys.Control))
{
GraphPane pane = zgc.GraphPane;
object nearestObject;
int index;
pane.FindNearestObject(new PointF(e.X, e.Y), this.CreateGraphics(), out nearestObject, out index);
if (nearestObject != null && nearestObject.GetType() == typeof(LineItem))
{
intervalLine = (LineItem)nearestObject;
int hrmObjectIndex = zgraph.ConvertPointToHRMObjectIndex(intervalLine, HRMdata.Frequency);
int tempValue = hrmObjectIndex;
int oldDiff = int.MaxValue, newDiff = 0;
for (int i = 0; i < interval.Count; i++)
{
for (int j = 0; j < interval[i].Count(); j++)
{
newDiff = hrmObjectIndex - interval[i][j];
if (newDiff < oldDiff && newDiff > 0)
{
intervalIndex1 = i;
intervalIndex2 = j;
oldDiff = newDiff;
}
}
}
mouseDragged = true;
}
}
return(default(bool));
}
