本文整理汇总了C#中PolylineClass.QueryPoint方法的典型用法代码示例。如果您正苦于以下问题：C# PolylineClass.QueryPoint方法的具体用法？C# PolylineClass.QueryPoint怎么用？C# PolylineClass.QueryPoint使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PolylineClass的用法示例。
在下文中一共展示了PolylineClass.QueryPoint方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ProcessFeature
private ArrayList ProcessFeature(IFeature test, SegmentCollectionIndex index,
double searchRadius, double aspectRatio, bool canDefer, bool canExcept)
{
if (test == null || test.Shape == null || test.Shape.IsEmpty)
return null;
ArrayList theReturn = new ArrayList();
IDataset theDataset = (IDataset)test.Table;
IGeometry theTestShape = test.ShapeCopy;
theTestShape.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
ISegmentCollection theSegColl = (ISegmentCollection)theTestShape;
ISegment theSegment;
for (int i = 0; i < theSegColl.SegmentCount; i++)
{
theSegment = theSegColl.get_Segment(i);
int theNeatlineOID;
double dist1 = index.get_MinimumDistance(theSegment.FromPoint, out theNeatlineOID);
if (dist1 <= searchRadius)
{
double dist2 = index.get_MinimumDistance(theSegment.ToPoint, out theNeatlineOID);
if (dist2 <= searchRadius)
{
if (Math.Abs(dist1 - dist2) < theSegment.Length / aspectRatio)
{
// Error point will be 1/2 way along segment
IPolyline thePolyline = new PolylineClass();
thePolyline.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
((ISegmentCollection)thePolyline).AddSegment(theSegment, ref this._missing, ref this._missing);
thePolyline.Project(SpatialReferenceHelper.GeographicReference);
IPoint theErrorPoint = new PointClass();
thePolyline.QueryPoint(esriSegmentExtension.esriNoExtension, 0.5, true, theErrorPoint);
DataQualityError theError = new DataQualityError(this.Name, canDefer, canExcept);
theError.Location = theErrorPoint;
// If it's in the smallest 10% of the search radius, mark high severity
// 50%, medium
double avgDist = (dist1 + dist2) / 2;
if (avgDist <= searchRadius / 10)
theError.Severity = 1;
else if (avgDist <= searchRadius / 2)
theError.Severity = 2;
else
theError.Severity = 3;
theError.Description = "Line segment co-linear with neatline";
ExtendedInfo theInfo = new ExtendedInfo();
theInfo.AddProperty("Feature class", theDataset.Name);
if (test.HasOID)
theInfo.AddProperty("Feature ID", test.OID.ToString());
theInfo.AddProperty("Neatline Feature ID", theNeatlineOID.ToString());
theInfo.AddProperty("Distance", String.Format("{0:0.## metres}", avgDist));
theInfo.AddProperty("From point x", thePolyline.FromPoint.X.ToString());
theInfo.AddProperty("From point y", thePolyline.FromPoint.Y.ToString());
theInfo.AddProperty("To point x", thePolyline.ToPoint.X.ToString());
theInfo.AddProperty("To point y", thePolyline.ToPoint.Y.ToString());
theError.ExtendedData = theInfo.WriteXML();
//this.LogMessage(theError.ExtendedData);
theReturn.Add(theError);
}
}
}
}
return theReturn;
}示例2: Execute
//.........这里部分代码省略.........
}
IFeature theFeature2 = theFCursor2.NextFeature();
while (theFeature2 != null)
{
if (theFeature2.Shape != null && theFeature2.Shape.IsEmpty == false)
{
IGeometry theCopy = theFeature2.ShapeCopy;
theCopy.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
IPointCollection thePtColl = (IPointCollection)theCopy;
for (int k = 0; k < thePtColl.PointCount; k++)
{
// Find the closest point in the index. If it's less than
// the search radius and larger than the cluster tolerance,
// log as an error
IPoint thePoint = thePtColl.get_Point(k);
IndexPoint theIdxPoint = theIndex.get_ClosestPointWithinLimits(
thePoint.X,
thePoint.Y,
theCluster,
theSearchRadius);
if (theIdxPoint != null)
{
// Build a straight line between the offending points
IPolyline thePolyline = new PolylineClass();
thePolyline.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
((IPointCollection)thePolyline).AddPoint(thePoint, ref this._missing, ref this._missing);
IPoint theOtherPoint = new PointClass();
theOtherPoint.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
theOtherPoint.PutCoords(theIdxPoint.X, theIdxPoint.Y);
((IPointCollection)thePolyline).AddPoint(theOtherPoint, ref this._missing, ref this._missing);
// Get the distance
double dist = PointCollectionIndex.get_Distance(thePoint.X, thePoint.Y, theOtherPoint.X, theOtherPoint.Y);
// Project to geographics for error reporting
thePolyline.Project(SpatialReferenceHelper.GeographicReference);
// Error point will be 1/2 way along line between points
IPoint theErrorPoint = new PointClass();
thePolyline.QueryPoint(esriSegmentExtension.esriNoExtension, 0.5, true, theErrorPoint);
DataQualityError theError = new DataQualityError(this.Name, canDefer, canExcept);
theError.Location = theErrorPoint;
// If it's in the smallest 10% of the search radius, mark high severity
// 50%, medium
if (dist <= theSearchRadius / 10)
theError.Severity = 1;
else if (dist <= theSearchRadius / 2)
theError.Severity = 2;
else
theError.Severity = 3;
theError.Description = "Points almost but not quite co-located";
ExtendedInfo theExtInfo = new ExtendedInfo();
theExtInfo.AddProperty("Feature class 1", theDataset1.Name);
theExtInfo.AddProperty("Feature class 2", theDataset2.Name);
if (theLayer1.FeatureClass.HasOID)
theExtInfo.AddProperty("Feature ID 1", theIdxPoint.SourceFeatureID.ToString());
if (theLayer2.FeatureClass.HasOID)
theExtInfo.AddProperty("Feature ID 2", theFeature2.OID.ToString());
theExtInfo.AddProperty("Distance", String.Format("{0:0.## metres}", dist));
theExtInfo.AddProperty("From point x", thePolyline.FromPoint.X.ToString());
theExtInfo.AddProperty("From point y", thePolyline.FromPoint.Y.ToString());
theExtInfo.AddProperty("To point x", thePolyline.ToPoint.X.ToString());
theExtInfo.AddProperty("To point y", thePolyline.ToPoint.Y.ToString());
theError.ExtendedData = theExtInfo.WriteXML();
//this.LogMessage(theError.ExtendedData);
this._errors.Add(theError);
}
}
}
theFeature2 = theFCursor2.NextFeature();
}
}
}
}
this.LogMessage("Number of errors found: " + this.ErrorCount);
this.LogMessage("Test " + this.Name + " successful.");
}
catch (Exception ex)
{
this.LogMessage("Exception caught: \n" + ex.Message + "\n" + ex.StackTrace.ToString());
this.LogMessage("id of the current polygon: " + currentOid);
return -1;
}
finally
{
this.StopLogging();
}
return this.ErrorCount;
}示例3: ProcessPotentialGapErrors
private ArrayList ProcessPotentialGapErrors(ArrayList pointPairs, ITopology topology, IFeatureClass sourceFC,
double limitRadians, bool allowPinches)
{
ArrayList theReturn = new ArrayList();
// We have a list of pairs of points on opposite sides of a gap which are
// within the tolerance distances. We need to calculate the angles
/*
* Format of the "pair" is IndexPoint[6]
* [0] - thePoint
* [1] - theOtherPoint
* [2] - point preceding thePoint in source feature shape
* [3] - point following thePoint in source feature shape
* [4] - point preceding theOtherPoint in source feature shape
* [5] - point following theOtherPoint in source feature shape
*/
int count = 0;
IScratchWorkspaceFactory theFactory = new ScratchWorkspaceFactoryClass();
for (int i = 0; i < pointPairs.Count; i++)
{
IndexPoint[] thePair = (IndexPoint[])pointPairs[i];
// Construct line segments and compare angles
ILine[] theLines = new ILine[2];
ILine[] theOtherLines = new ILine[2];
if (thePair[2] != null) theLines[0] = this.ConstructLine(thePair[2].X, thePair[2].Y, thePair[0].X, thePair[0].Y);
if (thePair[3] != null) theLines[1] = this.ConstructLine(thePair[0].X, thePair[0].Y, thePair[3].X, thePair[3].Y);
if (thePair[4] != null) theOtherLines[0] = this.ConstructLine(thePair[4].X, thePair[4].Y, thePair[1].X, thePair[1].Y);
if (thePair[5] != null) theOtherLines[1] = this.ConstructLine(thePair[1].X, thePair[1].Y, thePair[5].X, thePair[5].Y);
bool bFoundError = false;
for (int j = 0; j < theLines.Length; j++)
{
for (int k = 0; k < theOtherLines.Length; k++)
{
// Eval angle. If it is less than the limit, Create an error and add it to the collection
double angleRadians = this.EvalAngle(theLines[j], theOtherLines[k]);
if (double.IsNaN(angleRadians) == false)
{
if (angleRadians >= 0 && angleRadians < limitRadians)
{
// Error point will be 1/2 way between points
ILine theGap = this.ConstructLine(thePair[0].X, thePair[0].Y, thePair[1].X, thePair[1].Y);
double theGapSize = theGap.Length;
IPolyline theGapPolyline = new PolylineClass();
theGapPolyline.Project(SpatialReferenceHelper.BCAlbersSpatialReference);
((ISegmentCollection)theGapPolyline).AddSegment((ISegment)theGap, ref this._missing, ref this._missing);
theGapPolyline.Project(SpatialReferenceHelper.GeographicReference);
IPoint theErrorPoint = new PointClass();
theGapPolyline.QueryPoint(esriSegmentExtension.esriNoExtension, 0.5, true, theErrorPoint);
if (allowPinches || this.IsPinch(
theErrorPoint,
theGapPolyline,
sourceFC,
theFactory.DefaultScratchWorkspace
) == false)
{
IDataset theDataset = (IDataset)sourceFC;
PotentialError thePError = new PotentialError();
thePError.AngleDegrees = angleRadians * 180 / Math.PI;
thePError.ErrorPoint = theErrorPoint;
thePError.FeatureClassName = theDataset.Name;
thePError.FromPoint = theGapPolyline.FromPoint;
thePError.GapSize = theGapSize;
thePError.OtherOID = thePair[1].SourceFeatureID;
thePError.OtherPointIndex = thePair[1].SourcePointIndex;
thePError.SourceOID = thePair[0].SourceFeatureID;
thePError.SourcePointIndex = thePair[0].SourcePointIndex;
thePError.ToPoint = theGapPolyline.ToPoint;
theReturn.Add(thePError);
}
bFoundError = true;
}
}
if (bFoundError)
break;
}
if (bFoundError)
break;
}
if (++count % 500 == 0)
this.LogMessage("Processed gap " + count + " of " + pointPairs.Count);
}
return theReturn;
}