|
public GetCurrentPoint ( |
||
| element | ||
| return | ||
private void editLayer_PointerPressed(object sender, FeaturePointerRoutedEventArgs args)
{
Point2D startGeoRegion = Map.ScreenToMap(args.GetCurrentPoint(Map).Position);
args.Handler = true;
Map.Focus(Windows.UI.Xaml.FocusState.Pointer);
startEdit(args.Feature , false , startGeoRegion);
}
private void virtualLayer_PointerPressed(object sender, FeaturePointerRoutedEventArgs args)
{
args.Handler = true;
Feature hoverFeature = args.Feature;
if (hoverFeature == hoverCenterFeature)
{
prepareMoveLineOrRegionFeature(( hoverCenterFeature.Geometry as GeoPoint ).Location);
}
else
if (hoverFeature.Geometry is GeoPoint)
{
prepareMovePointFeature(hoverFeature);
}
else if (hoverFeature.Geometry is GeoLine)
{
Point2D pMap = Map.ScreenToMap(args.GetCurrentPoint(Map).Position);
addOneVertex(hoverFeature , pMap);
}
}
private void virtualLayer_PointerMoved(object sender, FeaturePointerRoutedEventArgs args)
{
Feature hoverFeature = args.Feature;
//在虚拟线上，并且没遇到虚拟顶点 ，显示捕捉点
if (draggingVertex == null && hoverFeature.Geometry is GeoLine)
{
GeoLine line = hoverFeature.Geometry as GeoLine;
Point2D pMap = Map.ScreenToMap(args.GetCurrentPoint(Map).Position);
Point2D snap = FindPointOnLineClosestToPoint(line.Parts[0][0] , line.Parts[0][1] , pMap);
if (snapVertex == null)
{
snapVertex = new Feature() { Style = SnapStyle , Geometry = new GeoPoint(snap) };
hoverLayer.Features.Add(snapVertex);
}
else
{
snapVertex.Geometry = new GeoPoint(snap);
}
}
}
