//Function: View Data;
//2019/3/21
private void miViewLayerData_Click(object sender, EventArgs e)
{
//Show data board
DataBoard frmDB = new DataBoard(axMapControl1.Map, null);
frmDB.Show();
}
/*
* Show attributes_table
*/
private void tableToolStripMenuItem_Click(object sender, EventArgs e)
{
DataBoard dataBoard = new DataBoard();
dataBoard.CurrentMap = axMapControl1.Map;
dataBoard.CurrentLayer = m_Layer;
dataBoard.Text = "LayerName:" + m_Layer.Name;
dataBoard.Show();
}
//Query Filter
private void btnOK_Click(object sender, EventArgs e)
{
m_spatialFilter.WhereClause = tbQuery.Text;
IFeatureSelection featureSelection = (IFeatureSelection)m_layer;
try
{
if (cbMethod.Text == "Create a new selection")
{
featureSelection.SelectFeatures(m_spatialFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
}
else if (cbMethod.Text == "Add to current selection")
{
featureSelection.SelectFeatures(m_spatialFilter, esriSelectionResultEnum.esriSelectionResultAdd, false);
}
else if (cbMethod.Text == "Remove from current selection")
{
featureSelection.SelectFeatures(m_spatialFilter, esriSelectionResultEnum.esriSelectionResultSubtract, false);
}
else if (cbMethod.Text == "Select from current selection")
{
featureSelection.SelectFeatures(m_spatialFilter, esriSelectionResultEnum.esriSelectionResultAnd, false);
}
}
catch
{
MessageBox.Show("Invalid query!");
this.Close();
}
//Show the attributes of the selected features
ISelectionSet selectionSet = featureSelection.SelectionSet;
ICursor cursor;
selectionSet.Search(null, true, out cursor); //Get the cursor
m_FeatureCursor = cursor as IFeatureCursor;
IFeatureLayer featureLayer = m_layer as IFeatureLayer;
DataOperator dataOperator = new DataOperator(m_map);
if (selectionSet.Count > 0)
{
DataTable dataTable = dataOperator.GetDataTable(m_FeatureCursor, featureLayer);
selectionSet.Search(null, true, out cursor); //Get the cursor
m_FeatureCursor = cursor as IFeatureCursor;
DataBoard dataBoard = new DataBoard(m_map, dataTable, m_FeatureCursor, selectionSet);
dataBoard.SetSelectedLayer(m_layer.Name);
dataBoard.cbEnabledFalse();
dataBoard.Show();
}
m_frmMain.ActiveViewPartialRefresh();
MessageBox.Show(selectionSet.Count + " features are selected.");
this.Close();
}
public bool QueryIntersect(string srcLayerName, string tgtLayerName,
IMap iMap, esriSpatialRelationEnum spatialRel)
{
DataOperator dataOperator = new DataOperator(iMap);
//Get layer by name
IFeatureLayer iSrcLayer = (IFeatureLayer)dataOperator.GetLayerByName(srcLayerName);
IFeatureLayer iTgtLayer = (IFeatureLayer)dataOperator.GetLayerByName(tgtLayerName);
//using query filter to get geom
IGeometry geom;
IFeature feature;
IFeatureCursor featCursor;
IFeatureClass srcFeatClass;
IQueryFilter queryFilter = new QueryFilter();
queryFilter.WhereClause = "CONTINENT='Asia'"; //set query clause
featCursor = iTgtLayer.FeatureClass.Search(queryFilter, false);
feature = featCursor.NextFeature();
geom = feature.Shape;
//city attributes filter
srcFeatClass = iSrcLayer.FeatureClass;
ISpatialFilter spatialFilter = new SpatialFilter();
spatialFilter.Geometry = geom;
spatialFilter.WhereClause = "POP_RANK>5";
spatialFilter.SpatialRel = (ESRI.ArcGIS.Geodatabase.esriSpatialRelEnum)spatialRel;
//select features
IFeatureSelection featureSelection = (IFeatureSelection)iSrcLayer;
featureSelection.SelectFeatures(spatialFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
ISelectionSet selectionSet = featureSelection.SelectionSet;
ICursor cursor;
selectionSet.Search(null, true, out cursor);
IFeatureCursor featureCursor = cursor as IFeatureCursor;
if (selectionSet.Count > 0)
{
DataBoard dataBoard = new DataBoard(iMap, dataOperator.GetDataTable(featureCursor, iSrcLayer));
dataBoard.cbEnabledFalse();
dataBoard.Show();
}
return(true);
}
public void ShowGeometry(IGeometry geometry)
{
//强制转换，将Geometry对象转化为pointCollection
pointCollection = (Polygon)geometry;
DataTable dataTable = new DataTable();
DataColumn dataColumn = new DataColumn();
//===创建一个有三列的表格====================
dataColumn = new DataColumn();
dataColumn.ColumnName = "number"; //设置第一列，表示用户指定的列名
dataColumn.DataType = System.Type.GetType("System.String");
dataColumn.ReadOnly = true; //第一列无法修改
dataTable.Columns.Add(dataColumn);
dataColumn = new DataColumn();
dataColumn.ColumnName = "X";//设置第二列为在目标图层类作为分类标准的属性
dataColumn.DataType = System.Type.GetType("System.String");
dataTable.Columns.Add(dataColumn);
dataColumn = new DataColumn();
dataColumn.ColumnName = "Y";//设置第三列为在目标图层类作为分类标准的属性
dataColumn.DataType = System.Type.GetType("System.String");
dataTable.Columns.Add(dataColumn);
//提供一个图形的容器
pGraphicsContainer = m_map as IGraphicsContainer;//只在本函数
DataRow dataRow;
for (int i = 0; i < pointCollection.PointCount; i++)
{
dataRow = dataTable.NewRow();
dataRow[0] = i + 1;
dataRow[1] = Math.Round(pointCollection.Point[i].X, 3);
dataRow[2] = Math.Round(pointCollection.Point[i].Y, 3);//将统计结果添加到第三列
dataTable.Rows.Add(dataRow);
/*IElement pElement = new MarkerElementClass();
* pElement.Geometry = pointCollection.Point[i];
* pGraphicsContainer.AddElement(pElement, 0);//0 represents z-order */
//确定Element对象，并将对象加载到pGraphicsContainer中
IMarkerSymbol markerSymbol = new SimpleMarker3DSymbolClass();
//markerSymbol的类型和分辨率
((ISimpleMarker3DSymbol)markerSymbol).Style = esriSimple3DMarkerStyle.esriS3DMSSphere;
((ISimpleMarker3DSymbol)markerSymbol).ResolutionQuality = 1.0;
//markerSymbol的颜色和大小
IRgbColor color = new RgbColorClass();
color.Red = 255;
color.Green = 0;
color.Blue = 0;
markerSymbol.Size = 5;
markerSymbol.Color = color as IColor;
IElement pElement = new MarkerElementClass();
((IMarkerElement)pElement).Symbol = markerSymbol;
pElement.Geometry = pointCollection.Point[i];
pGraphicsContainer.AddElement(pElement, 0);
}
DataBoard dataBoard = new DataBoard("Position", dataTable, this, pointCollection.PointCount);
dataBoard.Show();
m_form.setButton_miShowTime(false);
}
