/// <summary>
/// 地图鼠标按下事件
/// </summary>
private void picBoxMap_MouseDown(object sender, MouseEventArgs e)
{
isClick = true;
switch (operationType)
{
case MapOperation.SelectElement:
break;
case MapOperation.ZoomIn:
break;
case MapOperation.ZoomOut:
break;
case MapOperation.Pan: //漫游
mouseOldLoc = e.Location;
break;
case MapOperation.SelectFeatures: //选择要素
startPoint = e.Location;
break;
case MapOperation.Edit: //编辑要素
mouseOldLoc = e.Location;
SelectByPoint(e.Location, EditingIndex);
UpdateMapImg(); //重绘
break;
case MapOperation.EditVertices: //编辑要素顶点
myMap.Layers[EditingIndex].SelectVertex(e.Location, picBoxMap.Bounds, centerLngLat, ratio * scaleChoice[scaleIndex]);
break;
case MapOperation.CreateFeatures: //创建要素
if (e.Button == MouseButtons.Left && e.Clicks == 1)
{
UpdateMapImg();
picBoxMap.Refresh();
trackingPoint = new Point(e.Location.X, e.Location.Y);
switch (myMap.Layers[EditingIndex].DataType)
{
case MySpaceDataType.MyPoint:
myMap.AddFeature(ScreenToWGS84(trackingPoint), EditingIndex);
DrawTrackingFeature(); //点要素在这里画编辑的图形
break;
case MySpaceDataType.MyPolyLine:
trackingPoints.Add(trackingPoint);
wgsPoints.Add(ScreenToWGS84(trackingPoint));
break;
case MySpaceDataType.MyPolygon:
trackingPoints.Add(trackingPoint);
wgsPoints.Add(ScreenToWGS84(trackingPoint));
break;
}
}
break;
case MapOperation.Identify:
break;
}
}