protected override void GenerateTestResultCore()
{
Collection <Feature> results = null;
if (!LoadingFromShapeFile)
{
results = TopologyValidator.PolygonsMustBeCoveredByPolygons(FirstInputFeatureLayer.InternalFeatures, SecondInputFeatureLayer.InternalFeatures);
}
OutputFeatureLayer.InternalFeatures.Clear();
foreach (Feature shape in results)
{
OutputFeatureLayer.InternalFeatures.Add(shape);
}
}
protected override void GenerateTestResultCore()
{
Collection <Feature> results = null;
if (!LoadingFromShapeFile)
{
results = TopologyValidator.LinesMustNotOverlap(InputFeatureLayer.InternalFeatures);
}
OutputFeatureLayer.InternalFeatures.Clear();
foreach (var item in results)
{
OutputFeatureLayer.InternalFeatures.Add(item);
}
}
/// <summary>
/// Validate lines based on whether they form a closed polygon, and display the results on the map
/// </summary>
private void CheckLinesMustFormClosedPolygon(object sender, EventArgs e)
{
// Create a sample set of line features to use for the validation
Feature lineFeature1 = new Feature("LINESTRING(0 0,100 0,100 100,20 100)");
Feature lineFeature2 = new Feature("LINESTRING(0 0,-50 0,-50 100,0 100)");
// Use the TopologyValidator API to validate the sample data
Collection <Feature> lines = new Collection <Feature>()
{
lineFeature1, lineFeature2
};
TopologyValidationResult result = TopologyValidator.LinesMustFormClosedPolygon(lines);
// Get the invalid features returned from the API
Collection <Feature> invalidResultFeatures = result.InvalidFeatures;
// Clear the MapView and add the new valid/invalid features to the map
ClearMapAndAddFeatures(lines, invalidResultFeatures);
// Update the help text
txtValidationInfo.Text = "Lines being validated are shown in green. \n\nLine endpoints that do not form a closed polygon are shown in red.";
}
/// <summary>
/// 拓扑检查
/// Check topology
/// </summary>
public Boolean TopoCheck()
{
Boolean result = false;
if (m_dataset != null)
{
try
{
this.ResetDatasetAddMap();
TopologyDatasetRelationItem topoItem = new TopologyDatasetRelationItem(m_bufDataset);
TopologyDatasetRelationItem[] items = { topoItem };
// 拓扑预处理，这个需要先调用
// Topology Preprocessing
TopologyValidator.Preprocess(items, 2);
// 检查线相重叠
// Check the topology according to the rule of LineNoOverlap
m_dataset.Datasource.Datasets.Delete(m_checkDataName);
m_resultDataset = TopologyValidator.Validate(m_bufDataset, m_bufDataset, TopologyRule.LineNoOverlap, 2, null, m_dataset.Datasource, m_checkDataName);
m_mapControl.Map.Layers.Add(m_resultDataset, true);
this.SetLayerStyle(m_mapControl.Map.Layers[0], Color.Red, 0.5);
m_mapControl.Map.Refresh();
result = true;
}
catch (Exception ex)
{
Trace.Write(ex.Message);
result = false;
}
}
return(result);
}
/// <summary>
/// Validate lines based on whether they elf-overlap, and display the results on the map
/// </summary>
private void CheckLinesMustNotSelfOverlap(object sender, EventArgs e)
{
// Create a sample set of line features to use for the validation
Feature selfOverlappingLine = new Feature("LINESTRING(0 0,100 0,100 100,0 100,20 0,40 0,40 -50)");
// Use the TopologyValidator API to validate the sample data
Collection <Feature> lines = new Collection <Feature>()
{
selfOverlappingLine
};
TopologyValidationResult result = TopologyValidator.LinesMustNotSelfOverlap(lines);
// Get the invalid features returned from the API
Collection <Feature> invalidResultFeatures = result.InvalidFeatures;
// Clear the MapView and add the new valid/invalid features to the map
ClearMapAndAddFeatures(new Collection <Feature>()
{
selfOverlappingLine
}, invalidResultFeatures);
// Update the help text
txtValidationInfo.Text = "Lines being validated are shown in green. \n\nOverlapping segments are shown in red.";
}
