// 编辑绘制图层
private void EditVertexMenuItem_Click(object sender, RoutedEventArgs e)
{
if (curSelGraphic != null)//检查当前是否有选择图形
{
operation = OperateType.EditVertex;
if (curSelGraphic.Geometry.GeometryType == GeometryType.Point) //所选图形为点
{
selVertexLayer.Graphics.Clear(); //清空顶点图层
MapPoint pt = (MapPoint)curSelGraphic.Geometry;
Graphic pg = new Graphic(pt, vertexSymbol); //创建新的点图形
selVertexLayer.Graphics.Add(pg);
}
else if (curSelGraphic.Geometry.GeometryType == GeometryType.Polyline)//所选图形为线
{
if (pointCollection != null)
{
pointCollection.Clear();//清空点集
}
else
{
pointCollection = new Esri.ArcGISRuntime.Geometry.PointCollection(myMapView.Map.SpatialReference);
}
Esri.ArcGISRuntime.Geometry.Polyline ln = (Esri.ArcGISRuntime.Geometry.Polyline)curSelGraphic.Geometry;
pointCollection.AddPoints(ln.Parts[0].Points); //将线的所有顶点加入点集
selVertexLayer.Graphics.Clear();
for (int i = 0; i < pointCollection.Count; i++) //将所有点以顶点图形样式显示
{
MapPoint pt = pointCollection[i];
Graphic pg = new Graphic(pt, vertexSymbol);
selVertexLayer.Graphics.Add(pg);
}
}
else if (curSelGraphic.Geometry.GeometryType == GeometryType.Polygon)//所选图形为多边形
{
if (pointCollection != null)
{
pointCollection.Clear();
}
else
{
pointCollection = new Esri.ArcGISRuntime.Geometry.PointCollection(myMapView.Map.SpatialReference);
}
Esri.ArcGISRuntime.Geometry.Polygon pg = (Esri.ArcGISRuntime.Geometry.Polygon)curSelGraphic.Geometry;
pointCollection.AddPoints(pg.Parts[0].Points);
selVertexLayer.Graphics.Clear();
for (int i = 0; i < pointCollection.Count; i++)
{
MapPoint pt = pointCollection[i];
Graphic gg = new Graphic(pt, vertexSymbol);
selVertexLayer.Graphics.Add(gg);
}
}
EditVertexMenuItem.IsEnabled = false;
UneditVertexMenuItem.IsEnabled = true;
}
}
private async Task ChangeMission(string mission)
{
// Stop animating the current mission
_animationTimer.Stop();
// Get mission data
_missionData = GetMissionData(mission);
// Draw mission route on the inset
// Create a collection of points to hold the mission
PointCollection points = new PointCollection(SpatialReferences.Wgs84);
// Add all of the points from the mission to the point collection
points.AddPoints(_missionData.Select(m => m.ToMapPoint()));
// Create a polyline to symbolize the route from the point collection
Polyline route = new Polyline(points);
// Update the route graphic's geometry with the newly created route polyline
_routeGraphic.Geometry = route;
// Update the inset map's scale
await InsetMapView.SetViewpointScaleAsync(100000);
// Update animation parameters
_frameCount = _missionData.Length;
_keyframe = 0;
// Set the MissionPlayPause button back to the currently 'playing' state
MissionPlayPause.Content = "Pause";
// Restart the animation
_animationTimer.Start();
}
