private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
if (miStartEditing.Enabled == false) //Start Editing
{
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
ILayer layer = dataOperator.GetLayerByName(sEditLayerName); // Get the layer to edit
IFeatureLayer featureLayer = layer as IFeatureLayer;
IFeature feature;
if (featureLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPoint) //Edit point
{
IPoint point = new PointClass();
point.PutCoords(e.mapX, e.mapY);
feature = dataOperator.AddGeometryToLayer(sEditLayerName, point);
AddFeature addFeatureName = new AddFeature(feature, axMapControl1.Map, this);
addFeatureName.ShowDialog();
}
else if (featureLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon)
{
if (drawPolygon == null)//Continue creating polygons when editting is not stopped
{
drawPolygon = new DrawPolygon(sEditLayerName, axMapControl1.Map, this);
drawPolygon.set_drawStart(true);
IPoint point = new PointClass();
point.PutCoords(e.mapX, e.mapY);
drawPolygon.set_startPoint(point); //set start point
drawPolygon.OnCreate(axMapControl1.Object);
drawPolygon.set_polyFeedback(point);
}
}
return;
}
}
private void polyshp_Click(object sender, EventArgs e)
{
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
IFeatureClass featureClass = dataOperator.CreateShapefile("E:\\", "ShapefileWorespace", "ShapefileSample", "Polygon");
if (featureClass == null)
{
MessageBox.Show("创建shapefile文件失败！");
return;
}
//将要素类添加到地图中，图层名为"Observation Stations"
//如果创建成功，将"创建shapefile"按钮禁用
//如果创建失败，弹出消息框提示
bool bRes = dataOperator.AddFeatureClassToMap(featureClass, "Observation Stations");
if (bRes)
{
polyshp.Enabled = false;
return;
}
else
{
MessageBox.Show("将新建shapefile文件加入地图失败！");
return;
}
}
private void simpleRenderToolStripMenuItem_Click(object sender, EventArgs e)
{
//获取"World Cities"图层
DataOperator dataoperator = new DataOperator(axMapControl1.Map);
ILayer layer = dataoperator.GetLayerByName("World Cities");
//通过IRgbColor接口新建rgbcolor对象，并设置颜色为蓝色
IRgbColor rgbcolor = new RgbColorClass();
rgbcolor.Red = 0;
rgbcolor.Blue = 255;
rgbcolor.Green = 0;
//获取"World Cities"图层的要素信息，并通过IColor接口访问设置好的颜色对象
ISymbol symbol = DataOperator.GetSymbolByLayer(layer);
IColor color = rgbcolor as IColor;
//判断图层和颜色是否获取成功，如果获取成功，则当前视图刷新，并显示简单渲染效果
//使simplerender菜单项不可再用
//如果获取失败，则弹出消息框提示"简单渲染失败!"
bool t = DataOperator.SetSymbolColor(layer, color);
if (t)
{
axTOCControl1.ActiveView.ContentsChanged();
axMapControl1.ActiveView.Refresh();
simpleRender.Enabled = false;
}
else
{
MessageBox.Show("简单渲染失败!");
}
}
public bool Buffer(string layerName, string sWhere, int iSize, IMap iMap)
{
IFeatureClass featureClass;
IFeature feature;
IGeometry geometry;
DataOperator dataOperator = new DataOperator(iMap);
IFeatureLayer featureLayer = (IFeatureLayer)dataOperator.GetLayerByName(layerName);
featureClass = featureLayer.FeatureClass;
IQueryFilter queryFilter = new QueryFilter();
queryFilter.WhereClause = sWhere;
IFeatureCursor featureCursor;
featureCursor = (IFeatureCursor)featureClass.Search(queryFilter, false);
int count = featureClass.FeatureCount(queryFilter);
feature = featureCursor.NextFeature();
geometry = feature.Shape;
ITopologicalOperator ipTO = (ITopologicalOperator)geometry;
IGeometry iGeomBuffer = ipTO.Buffer(iSize);
ISpatialFilter spatialFilter = new SpatialFilter();
spatialFilter.Geometry = iGeomBuffer;
spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIndexIntersects;
IFeatureSelection featureSelection = (IFeatureSelection)featureLayer;
featureSelection.SelectFeatures(spatialFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
return(true);
}
//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 DataBoard(IMap map, DataTable dataTable)
{
//Initialize components
InitializeComponent();
m_map = map;
//Input data source
dataGridView1.DataSource = dataTable;
AddLayerNameIntoComboBox();
m_dataOperator = new DataOperator(m_map);
}
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);
}
private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
//当"添加要素"菜单项被勾选时，进行如下操作
if (AddPoint.Checked == true)
{
IPoint point = new PointClass();
point.PutCoords(e.mapX, e.mapY);
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
dataOperator.AddFeatureToLayer("Observation Stations", "观测站", point);
return;
}
//以下使用的是trackline和trackpolygon函数来进行线和多边形的绘制
//注释的代码部分为另一种绘制线的方式
if (AddLine.Checked == true)
{
/*ISimpleLineSymbol SimpleLineSymbol = new SimpleLineSymbolClass();
* SimpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDot;
* IRgbColor rgbColor = new RgbColorClass();
* rgbColor.Red = 255;
* SimpleLineSymbol.Color = rgbColor;
* SimpleLineSymbol.Width = 3;
* object o = (object)SimpleLineSymbol;
* IGeometry Geometry;
* Geometry = axMapControl1.TrackLine();
* axMapControl1.DrawShape(Geometry, ref o);*/
IGeometry polyline = axMapControl1.TrackLine();
ILineElement LineElement;
LineElement = new LineElementClass();
IElement Element = LineElement as IElement;
Element.Geometry = polyline;
IGraphicsContainer GraphicsContainer = axMapControl1.Map as IGraphicsContainer;
GraphicsContainer.AddElement((IElement)LineElement, 0);
axMapControl1.ActiveView.Refresh();
}
if (AddPolygon.Checked == true)
{
IGeometry Polygon = axMapControl1.TrackPolygon();
IPolygonElement PolygonElement = new PolygonElementClass();
IElement Element = PolygonElement as IElement;
Element.Geometry = Polygon;
IGraphicsContainer GraphicsContainer = axMapControl1.Map as IGraphicsContainer;
GraphicsContainer.AddElement((IElement)PolygonElement, 0);
axMapControl1.ActiveView.Refresh();
}
}
private void miAccessDataToolStripMenuItem_Click(object sender, EventArgs e)
{
//获取保存有亚洲城市名的属性表，将其作为构造函数的参数
//新建DataBook对象
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
DataBook dataBook = new DataBook("亚洲城市人口",
dataOperator.GetCitiesName("World Cities", "Continents", esriSpatialRelationEnum.esriSpatialRelationIntersection));
//在地图中显示选中的要素
IActiveView activeview = axMapControl1.ActiveView;
activeview.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, 0, axMapControl1.Extent);
//展示DataBook对象
dataBook.Show();
}
/// <summary>
/// button: confirm
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
ISpatialReference currentSpatialRef = currentMap.SpatialReference;
IFeatureClass featureClass = DataOperator.CreateShp(textBox3.Text, textBox2.Text, textBox1.Text, comboBox1.SelectedItem.ToString(), currentSpatialRef);
if (featureClass == null)
{
MessageBox.Show("FAIL");
return;
}
DataOperator.AddFeatureClass_Map(featureClass, textBox1.Text, currentMap);
this.Close();
}
public DataBoard(IMap map, DataTable dataTable, IFeatureCursor cursor, ISelectionSet set)
{
//Initialize components
InitializeComponent();
m_map = map;
m_SelectionSet = set;
//Input data source
m_dataOperator = new DataOperator(m_map);
dataGridView1.DataSource = dataTable;
AddLayerNameIntoComboBox();
//Don't change the data table
IndexChangeFlag = false;
m_FeatureCursor = cursor;
}
private void btnAdmit_Click(object sender, EventArgs e)
{
IFields fields = new FieldsClass();
IFieldsEdit fieldsEdit = fields as IFieldsEdit;
//add fields
for (int i = 3; i < listBoxFieldName.Items.Count; i++)
{
AddNewField(fields, listBoxFieldName.Items[i].ToString(), listBoxAliasName.Items[i].ToString(),
listBoxFieldType.Items[i].ToString());
}
//Show message box when the input is not complete
if (tbFilePath.Text == "")
{
MessageBox.Show("Please input file path!");
}
else if (tbShapefileName.Text == "")
{
MessageBox.Show("Please input file name!");
}
else if (System.IO.File.Exists(tbFilePath.Text + "\\" + tbShapefileName.Text + ".shp"))
{
MessageBox.Show("The shapefile already exists!");
}
else
{
//Get parent directory and workspace names
String sParentDirectory = tbFilePath.Text.Substring(0, fbd.SelectedPath.LastIndexOf("\\"));
String sWorkspace = tbFilePath.Text.Substring(fbd.SelectedPath.LastIndexOf("\\") + 1);
DataOperator dataOperator = new DataOperator(m_map);
IFeatureClass featureClass = dataOperator.CreateShapefile(fields, sParentDirectory, sWorkspace, tbShapefileName.Text, cbGeometryType.SelectedItem.ToString());
if (featureClass == null)
{
MessageBox.Show("Failed to create shapefile!");
}
//add shapefile to the map
if (MessageBox.Show("Do you want to add the shapefile to the map?", "", MessageBoxButtons.OKCancel) == DialogResult.OK)
{
dataOperator.AddFeatureClassToMap(featureClass, tbShapefileName.Text);
}
this.Close();
}
}
private void myBuffer_Click(object sender, EventArgs e)
{
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
//dataOperator.Buffer("World Cities","CITY_NAME='Istanbul'",1,axMapControl1.Map);
int col;
Form form2 = new BufferAnalysis();
//form2.Show();
if (form2.ShowDialog() == DialogResult.OK)
{
string str = form2.Controls["textBox1"].Text;
col = int.Parse(str);
DataBook databook = new DataBook("Istanbul's Cities", dataOperator.Buffer("World Cities", "CITY_NAME='Istanbul'", col, axMapControl1.Map));
//在地图中显示选中的要素
IActiveView activeview = axMapControl1.ActiveView;
activeview.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, 0, axMapControl1.Extent);
databook.Show();
}
}
private void cbLayerName_SelectedIndexChanged(object sender, EventArgs e)
{
//Get the chosen layer
DataOperator dataOperator = new DataOperator(m_map);
m_layer = dataOperator.GetLayerByName(cbLayerName.SelectedItem.ToString());
//Add the fields of the layer
IFeatureLayer featureLayer = m_layer as IFeatureLayer;
IField field = null;
lbxFields.Items.Clear();
for (int i = 0; i < featureLayer.FeatureClass.Fields.FieldCount; i++)
{
field = featureLayer.FeatureClass.Fields.get_Field(i);
lbxFields.Items.Add(field.Name);
}
//Change layer name label
lbLayerName.Text = cbLayerName.Text;
}
public void HighLight(int row)
{
DataOperator dataoperator = new DataOperator(m_map);
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 = 250;
color.Green = 230;
color.Blue = 20;
markerSymbol.Size = 8;
markerSymbol.Color = color as IColor;
// 将showElement对象赋予markerSymbol的属性
IElement showElement = new MarkerElementClass();
((IMarkerElement)showElement).Symbol = markerSymbol;
showElement.Geometry = pointCollection.Point[row];
//在绘制前，清楚图像容器内的所有Elements
pGraphicsContainer.DeleteAllElements();//通过name删除
//为了使点在上面，先显示polygon
IGeometry polygon = pointCollection as IGeometry;
IPolygonElement polygonElement = new PolygonElementClass();
IElement polyElement = polygonElement as IElement;
polyElement.Geometry = polygon;
pGraphicsContainer.AddElement((IElement)polygonElement, 0);
//绘制高亮显示的点
pGraphicsContainer.AddElement((IElement)showElement, 0);
//重新绘制除了高亮点外的构造点
for (int i = 0; (i < pointCollection.PointCount); i++)
{
if (i != row)
{
IRgbColor color3 = new RgbColorClass(); //如果出现重复 将函数独立出来
color3.Red = 255;
color3.Green = 0;
color3.Blue = 0;
markerSymbol.Size = 5;
markerSymbol.Color = color3;
IElement pElement = new MarkerElementClass();
((IMarkerElement)pElement).Symbol = markerSymbol;
pElement.Geometry = pointCollection.Point[i];
pGraphicsContainer.AddElement(pElement, 0);
/*IElement pElement=new MarkerElementClass();
* pElement.Geometry = pointCollection.Point[i];
* pGraphicsContainer.AddElement(pElement, 0);*/
}
}
m_form.axMapControl1.ActiveView.Refresh();//partialrefresh
}
/// <summary>
/// attribute + spatial selection altogether in one
/// </summary>
private void SelectFeatures()
{
//complemented by the same class of IFeatureLayer
IFeatureSelection featureSelection = currentFeatureLayer as IFeatureSelection;
//IQueryFilter is implemented by coclass QueryFilter
IQueryFilter queryFilter = new QueryFilterClass();
//IQueryFilter.WhereClause
queryFilter.WhereClause = textBoxWhere.Text;
//this part of code can be both used by two ways of selection
switch (comboBoxSelectingResult.SelectedIndex)
{
case 0: //create new selection
currentMap.ClearSelection();
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
break;
case 1: //add to current selection
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultAdd, false);
break;
case 2:
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultXOR, false);
break;
case 3:
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultAnd, false);
break;
default:
currentMap.ClearSelection();
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
break;
}
//class SpatialFilter : QueryFilter
ISpatialFilter spatialFilter = new SpatialFilterClass();
//attribute + spatial query
if (this.Width == this.MaxWidth)
{
ICursor pCursor;
featureSelection.SelectionSet.Search(null, false, out pCursor);
IFeatureCursor featureCursor = pCursor as IFeatureCursor;
IFeature pFeature = featureCursor.NextFeature();
IGeometry pGeometry = null;
ITopologicalOperator topologicalOperator;
while (pFeature != null)
{
if (pGeometry != null)
{
//this temp topo_Buffer is used to create a searching range by ITopologicalOperator.Buffer
ITopologicalOperator topo_Buffer = pFeature.Shape as ITopologicalOperator;
//Union is a add-to-existing method
topologicalOperator = pGeometry as ITopologicalOperator;
pGeometry = topologicalOperator.Union(topo_Buffer.Buffer(double.Parse(textBox1.Text)));
}
//first in
else
{
topologicalOperator = pFeature.Shape as ITopologicalOperator;
pGeometry = topologicalOperator.Buffer(double.Parse(textBox1.Text));
}
//update pFeature using IFeatureCursor.NextFeature()
pFeature = featureCursor.NextFeature();
}
//ISpatialFilter.Geometry
spatialFilter.Geometry = pGeometry;
switch (comboBoxSpatialOperation.SelectedIndex)
{
case 0: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; break;
case 1: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelWithin; break;
case 2: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains; break;
case 3: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelTouches; break;
case 4: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelCrosses; break;
default: spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; break;
}
//spatial query's real selection is on the targetlayer
featureSelection.Clear();
for (int i = 0; i < checkedListBoxTargetLayers.CheckedItems.Count; i++)
{
IFeatureLayer pFeatureLayer = DataOperator.GetFeatureLayerByName(currentMap, checkedListBoxTargetLayers.CheckedItems[i].ToString());
featureSelection = pFeatureLayer as IFeatureSelection;
featureSelection.SelectFeatures((IQueryFilter)spatialFilter, esriSelectionResultEnum.esriSelectionResultAdd, false);
}
}
IActiveView activeView = currentMap as IActiveView;
//PartialRefresh: esriViewDrawPhase
activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, activeView.Extent);
}
