public static void ExtractSpecifyHRegFeatures(IWorkspaceName iworkspaceName_0, IMap imap_0,
IGeometry igeometry_0, IMap imap_1)
{
(new SelectionEnvironment()).CombinationMethod = esriSelectionResultEnum.esriSelectionResultNew;
IWorkspace workspace = (iworkspaceName_0 as IName).Open() as IWorkspace;
for (int i = imap_0.LayerCount - 1; i >= 0; i--)
{
ILayer layer = imap_0.Layer[i];
if ((!layer.Visible ? false : layer is IFeatureLayer))
{
try
{
IEnvelope areaOfInterest = layer.AreaOfInterest;
ITopologicalOperator topologicalOperator = (ITopologicalOperator)((IClone)igeometry_0).Clone();
topologicalOperator.Simplify();
if (topologicalOperator.IsSimple)
{
topologicalOperator.Clip(areaOfInterest);
}
}
catch (Exception exception)
{
}
if (!igeometry_0.IsEmpty)
{
ClipHelper.ExtractSelectFeatureFormFeatureCursor(layer,
ClipHelper.searchFeatureFormLayer(layer, igeometry_0), (IFeatureWorkspace)workspace,
igeometry_0, imap_1);
}
}
}
Marshal.ReleaseComObject(workspace);
workspace = null;
}
private void 给出可测区域ToolStripMenuItem_Click(object sender, EventArgs e)
{
IGeometry buffer;
ISelection pSeletion = axMapControl1.Map.FeatureSelection;
IEnumFeature pEnumFeature = (IEnumFeature)pSeletion;
IGraphicsContainer graphicsContainer = axMapControl1.ActiveView.GraphicsContainer;
//graphicsContainer.DeleteAllElements();
IFeature pFeature = pEnumFeature.Next(); //选择集
double bufferDistance = GlobalData.dist;
if (bufferDistance <= 0.0)
{
MessageBox.Show("距离设置错误");
return;
}
while (pFeature != null)
{
ITopologicalOperator topoOperator = pFeature.Shape as ITopologicalOperator;
buffer = topoOperator.Buffer(bufferDistance);
topoOperator = buffer as ITopologicalOperator;
IGeometry result;
if (rectpElement != null)
{
topoOperator.Clip(rectpElement.Geometry.Envelope);
}
IElement element = new PolygonElementClass();
element.Geometry = buffer;
//创建矩形轮廓的样式
ILineSymbol linesymbol = new SimpleLineSymbolClass();
linesymbol.Width = 2;
IRgbColor rgbColor = new RgbColorClass();
rgbColor.Red = 65;
rgbColor.Green = 105;
rgbColor.Blue = 225;
rgbColor.Transparency = 255;
linesymbol.Color = rgbColor;
IFillSymbol fillsymbol = new SimpleFillSymbolClass();
rgbColor.Transparency = 0;
fillsymbol.Color = rgbColor;
fillsymbol.Outline = linesymbol;
IFillShapeElement fillshapeElement = element as IFillShapeElement;
fillshapeElement.Symbol = fillsymbol;
// 添加绘图元素
graphicsContainer.AddElement(element, 0);
pFeature = pEnumFeature.Next();
}
axMapControl1.Refresh();
}
public void EraseOper()
{
ISpatialFilter tSF = new SpatialFilterClass();
tSF.Geometry = _Envelope;
tSF.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
//求出与裁切框相交要素
IFeatureCursor tFeatureCursor = _FeatureClass.Search(tSF, false);
IFeature tFeature = tFeatureCursor.NextFeature();
while (tFeature != null)
{
IGeometry tGeo2 = tFeature.ShapeCopy;
ITopologicalOperator tTope2 = tGeo2 as ITopologicalOperator;
tTope2.Simplify();
IGeometry tGeo = tFeature.ShapeCopy;
ITopologicalOperator tTope = tGeo as ITopologicalOperator;
tTope.Simplify();
//用Envelope对要素进行裁切
tTope.Clip(this._Envelope);
IGeometry tGeoClip = (IGeometry)tTope;
//用裁切出来的要素,再与其源要素进行求差处理,即得到外围要素
IGeometry tGeoDe = tTope2.Difference(tGeoClip);
//把外围要素赋予源要素
tFeature.Shape = tGeoDe;
tFeature.Store();
tFeature = tFeatureCursor.NextFeature();
}
ReleaseCom(tFeatureCursor);
}
/// <summary>
/// Clip features in the recordset to the tile envelope
/// </summary>
/// <param name="featureCursor"></param>
/// <param name="recordset"></param>
/// <param name="tileEnvelope"></param>
private void ClipFeaturesToTile(ref IFeatureCursor featureCursor, ref IRecordSet recordset, IEnvelope tileEnvelope)
{
//IFeatureCursor cursor = recordset.get_Cursor(true) as IFeatureCursor;
featureCursor = recordset.get_Cursor(false) as IFeatureCursor;
IFeature feature = featureCursor.NextFeature();
ITopologicalOperator topologicalOperator = null;
while (feature != null)
{
topologicalOperator = feature.Shape as ITopologicalOperator; // modifying shape so don't use ShapeCopy
// TODO: verify clip geometry is retained in recordset ********************************
topologicalOperator.Clip(tileEnvelope);
feature = featureCursor.NextFeature();
}
}
public static void ExtractSpecifyHRegFeatures(IWorkspaceName iworkspaceName_0, IMap imap_0,
IGeometry igeometry_0, IMap imap_1)
{
(new SelectionEnvironment()).CombinationMethod = esriSelectionResultEnum.esriSelectionResultNew;
IWorkspace workspace = (iworkspaceName_0 as IName).Open() as IWorkspace;
List <IFeatureLayer> featureLayers = new List <IFeatureLayer>();
UID uIDClass = new UID()
{
Value = "{6CA416B1-E160-11D2-9F4E-00C04F6BC78E}"
};
IEnumLayer layers = imap_0.Layers[uIDClass, true];
layers.Reset();
for (ILayer i = layers.Next(); i != null; i = layers.Next())
{
if ((!i.Visible ? false : i is IFeatureLayer))
{
featureLayers.Add(i as IFeatureLayer);
}
}
for (int j = featureLayers.Count - 1; j >= 0; j--)
{
IFeatureLayer item = featureLayers[j];
try
{
IEnvelope areaOfInterest = item.AreaOfInterest;
ITopologicalOperator topologicalOperator = (ITopologicalOperator)((IClone)igeometry_0).Clone();
topologicalOperator.Simplify();
if (topologicalOperator.IsSimple)
{
topologicalOperator.Clip(areaOfInterest);
}
}
catch (Exception exception)
{
Logger.Current.Error("", exception, "");
}
if (!igeometry_0.IsEmpty)
{
Clip.ExtractSelectFeatureFormFeatureCursor(item, Clip.searchFeatureFormLayer(item, igeometry_0),
(IFeatureWorkspace)workspace, igeometry_0, imap_1);
}
}
Marshal.ReleaseComObject(workspace);
workspace = null;
}
public static void ExtractSpecifyHRegFeatures(IWorkspaceName iworkspaceName_0, IMap imap_0,
IGeometry igeometry_0)
{
(new SelectionEnvironment()).CombinationMethod = esriSelectionResultEnum.esriSelectionResultNew;
IWorkspace workspace = (iworkspaceName_0 as IName).Open() as IWorkspace;
for (int i = 0; i < imap_0.LayerCount; i++)
{
ILayer layer = imap_0.Layer[i];
if (layer.Visible)
{
if (layer is IGroupLayer)
{
Clip.ExtractSpecifyHRegFeatures(workspace as IFeatureWorkspace, layer as ICompositeLayer,
igeometry_0);
}
if (layer is IFeatureLayer)
{
try
{
IEnvelope areaOfInterest = layer.AreaOfInterest;
ITopologicalOperator topologicalOperator =
(ITopologicalOperator)((IClone)igeometry_0).Clone();
topologicalOperator.Simplify();
if (topologicalOperator.IsSimple)
{
topologicalOperator.Clip(areaOfInterest);
}
}
catch (Exception exception)
{
Logger.Current.Error("", exception, "");
}
if (!igeometry_0.IsEmpty)
{
Clip.ExtractSelectFeatureFormFeatureCursor(layer.Name,
Clip.searchFeatureFormLayer(layer, igeometry_0), (IFeatureWorkspace)workspace,
igeometry_0);
}
}
}
}
workspace = null;
}
public static void ClipMapByRegion(IWorkspaceName iworkspaceName_0, IMap imap_0, IGeometry igeometry_0,
IMap imap_1)
{
(new SelectionEnvironment()).CombinationMethod = esriSelectionResultEnum.esriSelectionResultNew;
IWorkspace workspace = (iworkspaceName_0 as IName).Open() as IWorkspace;
TempAcceessBD tempAcceessBD = new TempAcceessBD();
tempAcceessBD.CreateTempDB();
IFeatureClass featureClass = tempAcceessBD.CreateFeatureClass(igeometry_0);
for (int i = imap_0.LayerCount - 1; i >= 0; i--)
{
ILayer layer = imap_0.Layer[i];
if ((!layer.Visible ? false : layer is IFeatureLayer))
{
try
{
IEnvelope areaOfInterest = layer.AreaOfInterest;
ITopologicalOperator topologicalOperator = (ITopologicalOperator)((IClone)igeometry_0).Clone();
topologicalOperator.Simplify();
if (topologicalOperator.IsSimple)
{
topologicalOperator.Clip(areaOfInterest);
}
}
catch (Exception exception)
{
Logger.Current.Error("", exception, "");
}
if (!igeometry_0.IsEmpty)
{
Clip.ClipLayer(layer as IFeatureLayer, featureClass, (IFeatureWorkspace)workspace, imap_1);
}
}
}
Marshal.ReleaseComObject(workspace);
workspace = null;
}
private static void ExtractSpecifyHRegFeatures(IFeatureWorkspace ifeatureWorkspace_0,
ICompositeLayer icompositeLayer_0, IGeometry igeometry_0)
{
for (int i = 0; i < icompositeLayer_0.Count; i++)
{
ILayer layer = icompositeLayer_0.Layer[i];
if (layer.Visible)
{
if (layer is IGroupLayer)
{
Clip.ExtractSpecifyHRegFeatures(ifeatureWorkspace_0, layer as ICompositeLayer, igeometry_0);
}
else if (layer is IFeatureLayer)
{
try
{
IEnvelope areaOfInterest = layer.AreaOfInterest;
ITopologicalOperator topologicalOperator =
(ITopologicalOperator)((IClone)igeometry_0).Clone();
topologicalOperator.Simplify();
if (topologicalOperator.IsSimple)
{
topologicalOperator.Clip(areaOfInterest);
}
}
catch (Exception exception)
{
Logger.Current.Error("", exception, "");
}
if (!igeometry_0.IsEmpty)
{
Clip.ExtractSelectFeatureFormFeatureCursor(layer.Name,
Clip.searchFeatureFormLayer(layer, igeometry_0), ifeatureWorkspace_0, igeometry_0);
}
}
}
}
}