private void ValidateTopology(ITopology topology, IEnvelope envelope)
{
IPolygon locationpolygon = new PolygonClass();
ISegmentCollection segmentCollection = locationpolygon as ISegmentCollection;
segmentCollection.SetRectangle(envelope);
IPolygon polgyon = topology.get_DirtyArea(locationpolygon);
if (!polgyon.IsEmpty)
{
IEnvelope areaToValidate = polgyon.Envelope;
IEnvelope areaValidated = topology.ValidateTopology(areaToValidate);
}
}
public void ValidateTopology(ITopology topology, IEnvelope envelope)
{
// Get the dirty area within the provided envelope.
IPolygon locationPolygon = new PolygonClass();
ISegmentCollection segmentCollection = (ISegmentCollection)locationPolygon;
segmentCollection.SetRectangle(envelope);
IPolygon polygon = topology.get_DirtyArea(locationPolygon);
// If a dirty area exists, validate the topology. if (!polygon.IsEmpty)
{ // Define the area to validate and validate the topology.
IEnvelope areaToValidate = polygon.Envelope;
IEnvelope areaValidated = topology.ValidateTopology(areaToValidate);
}
}
/// <summary>
/// Returns a polygon with a centroid at the given x and y exactly 1 acre in size
/// </summary>
/// <param name="X"></param>
/// <param name="Y"></param>
/// <returns></returns>
private IPolygon CreateHomesitePolygon(int X, int Y)
{
try
{
ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = (_application.Document as IMxDocument).ActiveView.ScreenDisplay;
ESRI.ArcGIS.Geometry.IPoint point = screenDisplay.DisplayTransformation.ToMapPoint(X, Y);
ITopologicalOperator topologicalOperator = point as ITopologicalOperator;
IGeometry geometry = topologicalOperator.Buffer(104.3551628); // radius of circle --> envelope is 1 square acre :)
IPolygon polygon = geometry as IPolygon;
// Might be able to skip this
ISegmentCollection segmentcollection = polygon as ISegmentCollection;
segmentcollection.SetRectangle(polygon.Envelope);
return(segmentcollection as IPolygon);
} catch (Exception ex)
{
RS_Tools.Utilities.Utilities_MessageBox.ErrorBox(ex.Message, MB_TITLE);
}
return(null);
}
private bool AddEditArea(IServerObject serverObject, string creator, string versionName, int editCount, IEnvelope editZone, bool autoExpandZone = true)
{
bool isOk = false;
IFeatureClass editAreasFC = null;
try
{
// Open edit areas feature class in default workspace
editAreasFC = GetEditAreaFeatureClass(serverObject);
// Get field indices
int creatorFIdx = editAreasFC.FindField(_creatorFName);
int creationDateFIdx = editAreasFC.FindField(_creationDateFName);
int lastUpdateFIdx = editAreasFC.FindField(_lastUpdateFName);
int editCountFIdx = editAreasFC.FindField(_editCountFName);
int versionNameFIdx = editAreasFC.FindField(_versionNameFName);
DateTime currentTime = DateTime.Now;
// Expand zone to make it more visible
if (autoExpandZone)
{
double expandRatio = (editCount <= 3) ? 1.5 : 1.15;
editZone.Expand(expandRatio, expandRatio, true);
}
// Check if there's an existing area
IFeature curFeature = null;
IFeatureCursor fCursor = GetEditAreas(serverObject, versionName);
if (fCursor != null && (curFeature = fCursor.NextFeature()) != null)
{
// Union the edit zones
IPolygon curZone = (IPolygon)curFeature.Shape;
IGeometry geometryBag = new GeometryBag();
geometryBag.SpatialReference = curZone.SpatialReference;
IGeometryCollection geometryCollection = (IGeometryCollection)geometryBag;
geometryCollection.AddGeometry(curZone);
geometryCollection.AddGeometry(editZone);
Polygon zoneConstructor = new Polygon();
ITopologicalOperator newZone = (ITopologicalOperator)zoneConstructor;
newZone.ConstructUnion((IEnumGeometry)geometryCollection);
// Update feature values
curFeature.Shape = (IGeometry)newZone;
curFeature.Value[lastUpdateFIdx] = currentTime;
int curCount = (int)curFeature.Value[editCountFIdx];
curFeature.Value[editCountFIdx] = curCount + editCount;
// Store feature
curFeature.Store();
curFeature = null;
}
else
{
// Save edit zone to feature class
IFeature zoneFeature = editAreasFC.CreateFeature();
zoneFeature.Value[creatorFIdx] = creator;
zoneFeature.Value[creationDateFIdx] = currentTime;
zoneFeature.Value[lastUpdateFIdx] = currentTime;
zoneFeature.Value[versionNameFIdx] = versionName;
zoneFeature.Value[editCountFIdx] = editCount;
// Set geometry
Polygon editAreaPoly = new Polygon();
ISegmentCollection editAreaSeg = (ISegmentCollection)editAreaPoly;
editAreaSeg.SetRectangle(editZone);
IZAware polyZAware = editAreaPoly as IZAware;
polyZAware.ZAware = false;
zoneFeature.Shape = polyZAware as IGeometry;
// Store feature
zoneFeature.Store();
fCursor.Flush();
fCursor = null;
zoneFeature = null;
}
isOk = true;
}
catch (Exception e)
{
_serverLog.LogMessage(ServerLogger.msgType.infoStandard, _soiName + ".AddEditArea()",
200, "Error while adding edit are: " + e.ToString());
}
finally
{
editAreasFC = null;
}
return(isOk);
}