Map Your Apps: Listing 3.
Handling the double-click event.Handling the double-click event.
private void map_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
listBox1.Items.Add("Map double-click occurred");
Point p0 = e.GetPosition(this);
Point p1 = new Point(p0.X - 300, p0.Y);
Location loc1 = myMap.ViewportPointToLocation(p1);
listBox1.Items.Add("Click window XY = " + p0.X + "," + p0.Y);
listBox1.Items.Add("Click map XY = " + p1.X + "," + p1.Y);
listBox1.Items.Add("Click lat-lon = " + loc1.Latitude.ToString("F4") + ","
+ loc1.Longitude.ToString("F4"));
listBox1.Items.Add("");
PlaceDot(loc1, Colors.Red);
listBox1.Items.Add("Placing red dot at mouse-click");
Point p2 = new Point(p1.X + 150, p1.Y + 100);
Location loc2 = myMap.ViewportPointToLocation(p2);
PlaceDot(loc2, Colors.Cyan);
listBox1.Items.Add("Placing cyan second dot to right and lower");
Point p3 = new Point(p1.X + 150, p1.Y - 100);
Location loc3 = myMap.ViewportPointToLocation(p3);
PlaceDot(loc3, Colors.Cyan);
listBox1.Items.Add("Placing cyan third dot to right and higher");
listBox1.Items.Add("");
DrawLine(loc1, loc2);
listBox1.Items.Add("Drawing solid line from first to second dot");
listBox1.Items.Add("");
DrawCurve(loc1, loc3);
DrawCurve(loc3, loc1);
listBox1.Items.Add("Drawing dashed curve from first to third dot");
listBox1.Items.Add("Drawing dashed curve from third to first dot");
listBox1.Items.Add("");
}
About the Author
Dr. James McCaffrey directs the data science and research efforts at Quaetrix, a data analytics company located near Redmond, Washington. Before joining Quaetrix, James was a senior research engineer at Microsoft. James can be reached at [email protected].