protected IMapPolygonLayer GetPolygonLayer()
{
IMapPolygonLayer polygonLayer = null;
foreach (ILayer item in _map.MapFrame.DrawingLayers)
{
if (item.LegendText == "Polygon")
{
polygonLayer = item as IMapPolygonLayer;
break;
}
}
if (polygonLayer == null)
{
polygonLayer = new MapPolygonLayer();
polygonLayer.LegendText = "Polygon";
polygonLayer.Symbolizer = GIS.FrameWork.ROIConfigure.polygonSymbolizer;
if (_map.MapFrame.DrawingLayers.Count > 0 && _map.MapFrame.DrawingLayers[0].LegendText == "ROI")
{
_map.MapFrame.DrawingLayers.Insert(1, polygonLayer);
}
else
{
_map.MapFrame.DrawingLayers.Insert(0, polygonLayer);
}
}
return(polygonLayer);
}
//在绘制结束后，根据配置参数对图层进行相应操作
protected void ProcessPolygon(IMapPolygonLayer tempLayer)
{
if (PolygonCanIn)
{
IMapPolygonLayer polygonLayer = GetPolygonLayer();
if (WillClearPolygons)
{
polygonLayer.DataSet.Features.Clear();
}
foreach (IFeature tempFeature in tempLayer.DataSet.Features)
{
polygonLayer.DataSet.Features.Add(tempFeature);
}
if (OperatedFunc != null)
{
OperatedFunc(polygonLayer);
}
}
else
{
_map.MapFrame.DrawingLayers.Add(tempLayer);
_map.MapFrame.DrawingLayers.Remove(tempLayer);
if (OperatedFunc != null)
{
OperatedFunc(tempLayer);
}
}
}
/// <summary>
/// This function stores the selected polygons in the
/// map from the polygon layer.
/// </summary>
private void getPolygons(IMapPolygonLayer polyLayer)
{
polygons.Features.Clear();
if (polyLayer.IsVisible && polyLayer.Selection.Count > 0)
{
foreach (var f in polyLayer.Selection.ToFeatureList())
{
polygons.Features.Add(f);
}
polygons.Projection = App.Map.Projection;
}
}
protected override void OnMouseDown(GeoMouseArgs e)
{
if (e.Button == MouseButtons.Left)
{
_startPoint = e.Location;
_currentPoint = _startPoint;
//_map.IsBusy = true;
if (_points.Count == 1)
{
_isEnabled = false;
_points.Add(e.Location);
////write in coordinate points
_coordinatePoints.Add(_map.PixelToProj(new System.Drawing.Point(_points[0].X, _points[0].Y)));
_coordinatePoints.Add(_map.PixelToProj(new System.Drawing.Point(_points[0].X, _points[1].Y)));
_coordinatePoints.Add(_map.PixelToProj(new System.Drawing.Point(_points[1].X, _points[1].Y)));
_coordinatePoints.Add(_map.PixelToProj(new System.Drawing.Point(_points[1].X, _points[0].Y)));
_coordinatePoints.Add(_map.PixelToProj(new System.Drawing.Point(_points[0].X, _points[0].Y)));
LinearRing _linearRing = new LinearRing(_coordinatePoints.ToArray());
Polygon polygon = new Polygon(_linearRing);
IMapPolygonLayer polygonLayer = GetPolygonLayer();
polygonLayer.DataSet.AddFeature(polygon as IGeometry);
_points.Clear();
_coordinatePoints.Clear();
_map.Refresh();
}
else if (_points.Count == 0)
{
_isEnabled = true;
_points.Add(e.Location);
}
}
else if (e.Button == MouseButtons.Right)
{
this.Enabled = false;
string bufferType = "PolygonBuffer";
GIS.Common.Dialogs.Buffer polygonBuffer = new GIS.Common.Dialogs.Buffer(bufferType);
polygonBuffer.ShowDialog();
_map.FunctionMode = FunctionMode.Pan;
}
base.OnMouseDown(e);
}
private void polygonBuffer()
{
foreach (ILayer item in _map.MapFrame.DrawingLayers)
{
if (item.LegendText == "Polygon")
{
IMapPolygonLayer polygonLayer = item as IMapPolygonLayer;
ILayer layer = bufferLayer();
for (int i = 0; i < polygonLayer.DataSet.Features.Count; i++)
{
(layer as IMapPolygonLayer).DataSet.AddFeature(polygonLayer.DataSet.Features[i].Geometry.Buffer(_distance));
}
_map.Refresh();
break;
}
}
}
public void SetLayers(int featureLayer = 0, int extentLayer = 0)
{
var pointLayers = _map.GetPointLayers().Where(c => c.DataSet.Name != null).ToList();
if (pointLayers.Count() > 0 && _map.GetPolygonLayers().Count() > 0)
{
TargetFeatureLayer = pointLayers[featureLayer];
TargetPolygonLayer = _map.GetPolygonLayers()[extentLayer];
if (TargetPolygonLayer.Selection.Count <= 0)
{
TargetPolygonLayer = GetSelectedPolygonLayer();
}
if (TargetFeatureLayer != null && TargetPolygonLayer != null)
{
var featureDataset = TargetFeatureLayer.DataSet;
if (TargetPolygonLayer.Selection.Count > 0)
{
this._selectedDataset = featureDataset.CopySubset(featureDataset.SelectIndices(TargetPolygonLayer.Selection.ToFeatureSet().Extent));
this._extent = TargetPolygonLayer.Selection.ToFeatureSet().Extent;
this._clip = new Clip(TargetPolygonLayer.Selection.ToFeatureSet());
}
else
{
this._selectedDataset = featureDataset.CopySubset(featureDataset.SelectIndices(TargetPolygonLayer.Extent));
this._extent = TargetPolygonLayer.Extent;
this._clip = new Clip(TargetPolygonLayer.DataSet);
}
UpdateField();
}
}
}
private void SaveProductFileClick(object sender, EventArgs e, IMapPolygonLayer layer)
{
var polygonFile = Path.Combine(_field.Folder, "product_polygon.shp");
layer.DataSet.SaveAs(polygonFile, true);
MessageBox.Show("File Saved");
}
