// 鼠标起来事件
private void gmapControl_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
bIsLeftButtonDown = false;
if (polygonElement == null)
{
return;
}
GMapPolygon rectPolygon = polygonElement as GMapPolygon;
List <GPoint> gpointList = rectPolygon.LocalPoints;
if (gpointList.Count == 0)
{
return;
}
GPoint p0 = gpointList[0];
GPoint p1 = gpointList[1];
GPoint p2 = gpointList[2];
GPoint p3 = gpointList[3];
Point leftUpPoint = new Point((int)p0.X, (int)p0.Y);
int width = 0;
int height = 0;
width = Math.Abs((int)p1.X - (int)p0.X);
height = Math.Abs((int)p2.Y - (int)p1.Y);
Rectangle rect = new Rectangle(leftUpPoint, new Size(width, height));
// 框选需要清除上一次的图元
foreach (IMFElement ele in elementList)
{
ele.HightLight(false);
}
elementList.Clear();
foreach (IMFLayer maplayer in mapLogic.GetLayers())
{
foreach (IMFElement element in maplayer.GetElementList())
{
if (element.IsHightLight)
{
continue;
}
GMapMarker marker = element as GMapMarker;
if (marker == null)
{
continue;
}
Point tmpPoint = marker.LocalPosition;
if (rect.Contains(tmpPoint))
{
element.HightLight(true);
elementList.Add(element);
}
}
}
layer.RemoveElement("select_rect");
RegistCommondExcuteEvent();
}