private void dataGridView1_RowHeaderMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)
{
if (_graphicsLayer == null) return;
_graphicsLayer.Markers.Clear();
_graphicsLayer.Polygons.Clear();
_graphicsLayer.Lines.Clear();
Geometry geometry = this.dataGridView1.Rows[e.RowIndex].Tag as Geometry;
if (geometry != null)
{
switch (geometry.Type)
{
case GeometryType.POINT:
Marker marker = new Marker(e.RowIndex.ToString(), new Point2D(geometry.Points[0].X, geometry.Points[0].Y),
MarkerType.Red_Dot, null);
_graphicsLayer.Markers.Add(marker);
break;
case GeometryType.LINE:
Line line = new Line(e.RowIndex.ToString(), new List<Point2D>(geometry.Points), 4.5, System.Drawing.Color.FromArgb(125, 0, 0, 255));
_graphicsLayer.Lines.Add(line);
break;
case GeometryType.REGION:
Polygon polygon = new Polygon(e.RowIndex.ToString(), new List<Point2D>(geometry.Points), System.Drawing.Color.FromArgb(125, 0, 255, 0), System.Drawing.Color.FromArgb(50, 0, 0, 255),
4.5);
_graphicsLayer.Polygons.Add(polygon);
break;
default:
break;
}
}
}
public PolygonMapGMapPolygon(Polygon polygon, GMapPolygon gMapPolygon)
{
this._gMapPolygon = gMapPolygon;
this._polygon = polygon;
}
public override void OnLoad(MapControl mapControl)
{
base.OnLoad(mapControl);
this.ActionDescription = "矩形圈选删除";
if (_layer == null)
{
_layer = new GraphicsLayer(Guid.NewGuid().ToString(), "DelByRectActionLayer");
}
this.ServiceUrl = ((MapLayer)mapControl.MapLayer).ServiceUrl;
this._mapName = ((MapLayer)mapControl.MapLayer).MapName;
if (!mapControl.GraphicsLayers.Contains(_layer, new LayerComparer()))
{
mapControl.GraphicsLayers.Add(_layer);
}
if (_rect == null)
{
_rect = new Polygon(Guid.NewGuid().ToString(), new List<Point2D>(), Draw.Color.FromArgb(100, 0, 0, 255), Draw.Color.FromArgb(255, 0, 0, 255), 1);
}
}
public static List<Polygon> CreatePolygon(GraphicsLayer graLayer, Feature feature, UGCLayer layer, Recordset recordset, Draw.Color fillColor, Draw.Color strokeColor)
{
int index = 0;
List<Polygon> list = new List<Polygon>();
int all = feature.Geometry.Parts.Sum();
for (int i = 0; i < feature.Geometry.Parts.Length; i++)
{
Point2D[] points = feature.Geometry.Points.Skip(index).Take(feature.Geometry.Parts[i]).ToArray();
Polygon polygon = new Polygon(feature.Id.ToString() + "@" + layer.DatasetInfo.Name + "@" + layer.DatasetInfo.DataSourceName + "@" + i.ToString(), points.ToList(), fillColor, strokeColor, 1);
Dictionary<string, string> property = new Dictionary<string, string>();
property[PropertyName.LayerName] = recordset.DatasetName;
property[PropertyName.GraphicsLayerID] = graLayer.ID;
property[PropertyName.SMID] = feature.Id.ToString();
polygon.Tag = property;
graLayer.Polygons.Add(polygon);
list.Add(polygon);
index += feature.Geometry.Parts[i];
}
return list;
}
protected override void MouseDown(System.Windows.Forms.MouseEventArgs e)
{
base.MouseDown(e);
_startFlag = true;
if (_rect != null)
{
if (_layer.Polygons.Contains(_rect))
{
_layer.Polygons.Remove(_rect);
}
}
else
{
_rect = new Polygon(Guid.NewGuid().ToString(), new List<Point2D>(), Draw.Color.FromArgb(100, 0, 0, 255), Draw.Color.FromArgb(255, 0, 0, 255), 1);
}
Point2D startPoint = this.Map.ScreenToMap(e.Location);
_rect.Point2Ds.Clear();
_rect.Point2Ds.Add(startPoint);
}
public override void OnLoad(MapControl mapControl)
{
base.OnLoad(mapControl);
this.ActionDescription = "画多边形";
if (_layer == null)
{
_layer = new GraphicsLayer(Guid.NewGuid().ToString(), "QueryByPolygonActionLayer");
}
this.ServiceUrl = ((MapLayer)mapControl.MapLayer).ServiceUrl;
this._mapName = ((MapLayer)mapControl.MapLayer).MapName;
if (!mapControl.GraphicsLayers.Contains(_layer, new LayerComparer()))
{
mapControl.GraphicsLayers.Add(_layer);
}
if (_polygon == null)
{
_polygon = new Polygon(Guid.NewGuid().ToString(), new List<Point2D>(), Draw.Color.FromArgb(100, 0, 0, 255), Draw.Color.FromArgb(255, 0, 0, 255), 1);
}
if (_points == null)
{
_points = new List<Point2D>();
}
_resultForm.MapControl = mapControl;
}