private void 添加一个点ToolStripMenuItem1_Click(object sender, System.EventArgs e)
{
if (polygonElement == null)
{
return;
}
polygonElement.AddPoint(new MapLngLat(0, 0));
}
/// <summary>
/// 鼠标按下
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void gmapControl_MouseDown(object sender, MouseEventArgs e)
{
TimeSpan span = DateTime.Now - fistTimer;
if (span.TotalMilliseconds < 170)
{
return;
}
fistTimer = DateTime.Now;
if (e.Clicks == 2 || e.Button != MouseButtons.Left || isMouseDown)
{
return;
}
var lngLat = gmapControl.FromLocalToLatLng(e.X, e.Y);
var maplanLat = new MapLngLat(lngLat.Lng, lngLat.Lat);
if (listMapPoints.Count == 0)//第一个点 生成多边形
{
Kml polygonKml = new Kml();
polygonKml.Placemark.Name = "draw_polygon" + Utils.ElementIndex;
listMapPoints.Add(maplanLat); //添加到集合中
polygonKml.Placemark.Graph = new KmlPolygon()
{
Description = "",
PositionList = listMapPoints,
FillColor = Color.FromArgb(155, Color.AliceBlue),
OutLineColor = Color.FromArgb(155, Color.MidnightBlue)
};
IMFElement element = null;
drawn = layer.AddElement(polygonKml, out element); // 添加多边形到地图中
polygonElement = element as IMFPolygon;
gmapControl.MouseMove += gmapControl_MouseMove;
}
else
{
if (!listMapPoints.Contains(maplanLat))
{
listMapPoints.Add(maplanLat);
polygonElement.AddPoint(maplanLat);
}
}
}