/// <summary>
/// 向当前编辑的图层中添加一个几何对象
/// </summary>
public void AddGeometry(WEGeometry newGeo)
{
if (CurrentEdit == -1)
{
Console.WriteLine("非编辑状态");
throw new Exception("非编辑状态");
}
WEFeature newFea = new WEFeature();
WEVectorLayer _lay = (WEVectorLayer)(AllLayer[CurrentEdit]);
int id = _lay.Features.Count();
switch (AllLayer[CurrentEdit].FeatureType)
{
case FeatureType.WEEntityPoint:
newFea = new WEEntityPoint(id, newGeo, _lay.Field);
break;
case FeatureType.WEEntityPolyline:
newFea = new WEEntityPolyline(id, (WEMultiPolyline)newGeo, _lay.Field);
break;
case FeatureType.WEEntityPolygon:
newFea = new WEEntityPolygon(id, (WEMultiPolygon)newGeo, _lay.Field);
break;
}
_lay.AddFeature(newFea);
AllLayer[CurrentEdit] = _lay;
}
/// <summary>
/// 添加要素
/// </summary>
/// <param name="geometry"></param>
public void AddFeature(WEFeature geometry)
{
_Features.Add(geometry);
_MBR += geometry.MBR;
}
//鼠标松开
private void WEMapControl_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
Refresh();
PointF poimin, poimax;
WEPoint p1, p2;
switch (MapOpStyle)
{
case 0:
break;
case 1:
if (DisplayScale < 0.0005 && DisplayScale > 0)
{
return;
}
if (mStartPoint == e.Location)
{
ZoomByCenter(e.Location, 1.1);
}
else
{
poimin = new PointF(Math.Min(mStartPoint.X, e.Location.X), Math.Min(mStartPoint.Y, e.Location.Y)); // 0,0
poimax = new PointF(Math.Max(mStartPoint.X, e.Location.X), Math.Max(mStartPoint.Y, e.Location.Y));
p1 = WEMapTools.ToMapPoint(poimin);
p2 = WEMapTools.ToMapPoint(poimax);
ZoomByMBR(new WERectangle(p1.X, p2.X, p2.Y, p1.Y));
}
break;
case 2:
if (mStartPoint == e.Location)
{
ZoomByCenter(e.Location, 1 / 1.1);
}
else
{
PointF center = new PointF((mStartPoint.X + e.Location.X) / (float)2.0, (mStartPoint.Y + e.Location.Y) / (float)2.0);
poimin = new PointF(Math.Min(mStartPoint.X, e.Location.X), Math.Min(mStartPoint.Y, e.Location.Y)); // 0,0
poimax = new PointF(Math.Max(mStartPoint.X, e.Location.X), Math.Max(mStartPoint.Y, e.Location.Y));
ZoomByCenter(center, Math.Min((poimax.X - poimin.X) / WEMapTools.DisplayWidth, (poimax.Y - poimin.Y) / WEMapTools.DisplayHeight));
}
break;
case 3:
break;
case 4: //输入多边形
break;
case 5: //选择要素
int flag = -1;
if (mStartPoint == e.Location)
{
p1 = WEMapTools.ToMapPoint(e.Location);
for (int i = 0; i < AllLayer.Count; i++)
{
var layer = AllLayer[i];
if (!layer.Visible)
{
continue;
}
if (flag != -1)
{
break;
}
foreach (WEFeature fea in layer.Features)
{
if (fea.Geometries.Cover(p1))
{
_SelectedGeometries.Add(fea);
flag = i;
break;
}
}
}
Refresh();
}
else
{
poimin = new PointF(Math.Min(mStartPoint.X, e.Location.X), Math.Min(mStartPoint.Y, e.Location.Y)); // 0,0
poimax = new PointF(Math.Max(mStartPoint.X, e.Location.X), Math.Max(mStartPoint.Y, e.Location.Y));
p1 = WEMapTools.ToMapPoint(poimin);
p2 = WEMapTools.ToMapPoint(poimax);
for (int i = 0; i < AllLayer.Count; i++)
{
var layer = AllLayer[i];
if (!layer.Visible)
{
continue;
}
_SelectedGeometries.AddRange(layer.SelectByBox(new WERectangle(p1.X, p2.X, p2.Y, p1.Y)).ToArray());
}
Refresh();
//if (SelectingFinished != null)
//SelectingFinished(this);
}
List <int> ids = new List <int> {
};
foreach (var i in _SelectedGeometries)
{
ids.Add(i.ID);
}
if (SelectingFinished != null)
{
if (_SelectedGeometries.Count != 0)
{
EditFeature = _SelectedGeometries[0];
SelectingFinished(this, ids.ToArray(), flag, _SelectedGeometries[0]);
}
else
{
SelectingFinished(this, ids.ToArray(), flag, null);
}
}
break;
default:
break;
}
}
}