protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
}
_axMap.ExtentsChanged -= OnMapExtentsChanged;
_axMap.LayerRemoved -= OnLayerRemoved;
_axMap.LayerAdded -= OnLayerAdded;
_axMap = null;
if (_sfGraticule != null)
{
_sfGraticule.EditClear();
}
_sfGraticule = null;
_geoProjection = null;
_graticuleExtents = null;
_boundaryExtents = null;
_mapExtents = null;
_mapLayersHandler.OnLayerVisibilityChanged -= OnLayerVisibleChange;
_mapLayersHandler.MapRedrawNeeded -= OnRedrawNeeded;
_mapLayersHandler.RemoveLayer("Mask");
_mapLayersHandler.RemoveLayer(Name);
_mapLayersHandler = null;
}
}
private void UpdatePoint(AxMap Map, List <MapWinGIS.Point> PointsToUpdate)
{
var sf = new Shapefile();
if (PointShapefileLayerHandle != -1)
{
sf = Map.get_Shapefile(PointShapefileLayerHandle);
}
if (PointShapefileLayerHandle == -1)
{
if (!sf.CreateNewWithShapeID("", ShpfileType.SHP_POINT))
{
MessageBox.Show("Failed to create shapefile: " + sf.ErrorMsg[sf.LastErrorCode]);
return;
}
PointShapefileLayerHandle = Map.AddLayer(sf, true);
}
ShapeDrawingOptions options = sf.DefaultDrawingOptions;
options.PointType = tkPointSymbolType.ptSymbolStandard;
options.PointShape = tkPointShapeType.ptShapeCross;
sf.DefaultDrawingOptions = options;
sf.CollisionMode = tkCollisionMode.AllowCollisions;
sf.EditClear();
foreach (MapWinGIS.Point PointToUpdate in PointsToUpdate)
{
Shape shp = new Shape();
shp.Create(ShpfileType.SHP_POINT);
MapWinGIS.Point pnt = PointToUpdate;
int Index;
Index = shp.NumPoints;
shp.InsertPoint(pnt, ref Index);
Index = sf.NumShapes;
if (!sf.EditInsertShape(shp, Index))
{
MessageBox.Show("Failed to insert shape: " + sf.ErrorMsg[sf.LastErrorCode]);
return;
}
Map.Redraw();
}
if (PointsToUpdate.Count == 0)
{
Map.Redraw();
}
}
void ViewLine_AddLineEvent()
{
OpenFileDialog openLineDlg = new OpenFileDialog();
openLineDlg.Filter = "矢量格式" + "|" + "*.shp";// + "|" + img.CdlgFilter;
if (openLineDlg.ShowDialog() == DialogResult.OK)
{
String extention = Path.GetExtension(openLineDlg.FileName).ToLower();
if (extention == ".shp")
{
Shapefile lineShapefile = new Shapefile();
lineShapefile.Open(openLineDlg.FileName);
if (lineShapefile.ShapefileType != ShpfileType.SHP_POLYLINE)
{
return;
}
line = new Line(ref Map, lineShapefile, lineShapefileLayerHandle);
lineShapefileLayerHandle = line.LayerHandle;
var sf = new Shapefile();
if (PointShapefileLayerHandle != -1)
{
sf = Map.get_Shapefile(PointShapefileLayerHandle);
sf.EditClear();
}
foreach (MapWinGIS.Point pointFromLine in line.Points)
{
AddPoint(Map, pointFromLine.x, pointFromLine.y, pointFromLine.Key);
}
points = line.Points;
if (!(ViewLine == null || ViewLine.IsDisposed))
{
ViewLine.Close();
}
if (!(ViewPoint == null || ViewPoint.IsDisposed))
{
ViewPoint.Close();
}
}
else
{
MessageBox.Show("罢工啦，亲~我只能识别.shp格式的线文件哦");
}
}
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
_frameWidthDict.Clear();
_frameWidthDict = null;
}
if (_shapeFileMask != null)
{
_shapeFileMask.EditClear();
_shapeFileMask.Close();
_shapeFileMask = null;
}
MapLayersHandler = null;
_axMap = null;
_disposed = true;
}
}
public bool EditClear()
{
return(_shapefile.EditClear());
}
/// <summary>
/// Rebuilds the graticule
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void Refresh()
{
_sfGraticule?.EditClear();
_sfGraticule?.Labels.Clear();
ShowGraticule();
}
/// <summary>
/// removes all points from the shapefile and clears labels
/// </summary>
public void ClearLabels()
{
_shapeFileGrid25Labels.Labels.Clear();
_shapeFileGrid25Labels.EditClear();
}
