本文整理汇总了C#中IFeatureSet.Select方法的典型用法代码示例。如果您正苦于以下问题：C# IFeatureSet.Select方法的具体用法？C# IFeatureSet.Select怎么用？C# IFeatureSet.Select使用的例子？那么恭喜您, 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IFeatureSet的用法示例。
在下文中一共展示了IFeatureSet.Select方法的2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: Execute
/// <summary>
/// Executes the Union Opaeration tool programaticaly
/// </summary>
/// <param name="self">The input are feature set</param>
/// <param name="other">The second input feature set</param>
/// <param name="output">The output feature set</param>
/// <param name="cancelProgressHandler">The progress handler</param>
/// <returns></returns>
public bool Execute(
IFeatureSet self, IFeatureSet other, IFeatureSet output, ICancelProgressHandler cancelProgressHandler)
{
// Validates the input and output data
if (self == null || other == null || output == null)
{
return false;
}
IFeatureSet tempOutput = self.Intersection(other, FieldJoinType.All, null);
IFeatureSet tempFeatureSet = self.CombinedFields(other);
int previous = 0;
int max = self.Features.Count;
// Take (Self-Intersect Featureset)
List<IFeature> intersectList;
for (int i = 0; i < self.Features.Count; i++)
{
intersectList = other.Select(self.Features[i].Envelope.ToExtent());
foreach (IFeature feat in intersectList)
{
if (cancelProgressHandler.Cancel)
{
return false;
}
self.Features[i].Difference(feat, tempFeatureSet, FieldJoinType.LocalOnly);
}
if (Math.Round(i * 40D / max) <= previous)
{
continue;
}
previous = Convert.ToInt32(Math.Round(i * 40D / max));
cancelProgressHandler.Progress(string.Empty, previous, previous + TextStrings.progresscompleted);
}
max = other.Features.Count;
// Take (Other-Intersect Featureset)
for (int i = 0; i < other.Features.Count; i++)
{
intersectList = self.Select(other.Features[i].Envelope.ToExtent());
foreach (IFeature feat in intersectList)
{
if (cancelProgressHandler.Cancel)
{
return false;
}
other.Features[i].Difference(feat, tempFeatureSet, FieldJoinType.LocalOnly);
}
if (Math.Round((i * 40D / max) + 40D) <= previous)
{
continue;
}
previous = Convert.ToInt32(Math.Round((i * 40D / max) + 40D));
cancelProgressHandler.Progress(string.Empty, previous, previous + TextStrings.progresscompleted);
}
max = tempFeatureSet.Features.Count;
output.CopyTableSchema(tempFeatureSet);
// Add the individual feature to output
for (int i = 0; i < tempFeatureSet.Features.Count; i++)
{
output.Features.Add(tempFeatureSet.Features[i]);
if (Math.Round((i * 10D / max) + 80D) <= previous)
{
continue;
}
previous = Convert.ToInt32(Math.Round((i * 10D / max) + 80D));
if (cancelProgressHandler.Cancel)
{
return false;
}
cancelProgressHandler.Progress(string.Empty, previous, previous + TextStrings.progresscompleted);
}
max = tempOutput.Features.Count;
// Add the Intersect feature to output
for (int i = 0; i < tempOutput.Features.Count; i++)
{
output.Features.Add(tempOutput.Features[i]);
if (cancelProgressHandler.Cancel)
//.........这里部分代码省略.........
示例2: Intersection
/// <summary>
/// This tests each feature of the input
/// </summary>
/// <param name="self">This featureSet</param>
/// <param name="other">The featureSet to perform intersection with</param>
/// <param name="joinType">The attribute join type</param>
/// <param name="progHandler">A progress handler for status messages</param>
/// <returns>An IFeatureSet with the intersecting features, broken down based on the join Type</returns>
public static IFeatureSet Intersection(this IFeatureSet self, IFeatureSet other, FieldJoinType joinType, IProgressHandler progHandler)
{
IFeatureSet result = null;
ProgressMeter pm = new ProgressMeter(progHandler, "Calculating Intersection", self.Features.Count);
if (joinType == FieldJoinType.All)
{
result = CombinedFields(self, other);
// Intersection is symmetric, so only consider I X J where J <= I
if (!self.AttributesPopulated) self.FillAttributes();
if (!other.AttributesPopulated) other.FillAttributes();
int i = 0;
foreach (IFeature selfFeature in self.Features)
{
List<IFeature> potentialOthers = other.Select(selfFeature.Envelope.ToExtent());
foreach (IFeature otherFeature in potentialOthers)
{
selfFeature.Intersection(otherFeature, result, joinType);
}
pm.CurrentValue = i;
i++;
}
pm.Reset();
}
if (joinType == FieldJoinType.LocalOnly)
{
if (!self.AttributesPopulated) self.FillAttributes();
result = new FeatureSet();
result.CopyTableSchema(self);
result.FeatureType = self.FeatureType;
IFeature union;
pm = new ProgressMeter(progHandler, "Calculating Union", other.Features.Count);
if (other.Features != null && other.Features.Count > 0)
{
union = other.Features[0];
for (int i = 1; i < other.Features.Count; i++)
{
union = union.Union(other.Features[i]);
pm.CurrentValue = i;
}
pm.Reset();
pm = new ProgressMeter(progHandler, "Calculating Intersections", self.NumRows());
Extent otherEnvelope = new Extent(union.Envelope);
for (int shp = 0; shp < self.ShapeIndices.Count; shp++)
{
if (!self.ShapeIndices[shp].Extent.Intersects(otherEnvelope)) continue;
IFeature selfFeature = self.GetFeature(shp);
selfFeature.Intersection(union, result, joinType);
pm.CurrentValue = shp;
}
pm.Reset();
}
}
if (joinType == FieldJoinType.ForeignOnly)
{
if (!other.AttributesPopulated) other.FillAttributes();
result = new FeatureSet();
result.CopyTableSchema(other);
IFeature union;
if (self.Features != null && self.Features.Count > 0)
{
pm = new ProgressMeter(progHandler, "Calculating Union", self.Features.Count);
union = self.Features[0];
for (int i = 1; i < self.Features.Count; i++)
{
union = union.Union(self.Features[i]);
pm.CurrentValue = i;
}
pm.Reset();
if (other.Features != null)
{
pm = new ProgressMeter(progHandler, "Calculating Intersection", other.Features.Count);
int j = 0;
foreach (IFeature otherFeature in other.Features)
{
IFeature test = otherFeature.Intersection(union, result, joinType);
if (test.BasicGeometry != null)
{
result.Features.Add(test);
}
pm.CurrentValue = j;
j++;
}
}
pm.Reset();
}
}
return result;
}