/// <summary>
/// 查询统计范围
/// </summary>
private void searchBound()
{
String key = this.comboBoxQueryKey.Text.Trim();
Double radius = this.doubleInputRadius.Value;
if (key.Length == 0 || key == tipDistrictKey)
{
MessageBox.Show("请输入搜索关键字！", msgCaption);
return;
}
this.listBoxPoiResult.Items.Clear();
this.axSuperMap1.TrackingLayer.ClearEvents();
if (!poiSearch.IsOpen)
{
MessageBox.Show("找不到POI索引！", msgCaption);
return;
}
// poi查询
PoiResult poiResult = poiSearch.search(key);
if (poiResult == null || poiResult.Count == 0)
{
MessageBox.Show("找不到数据！", msgCaption);
}
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Blue);
style.SymbolSize = 30;
//获取第一个查询结果
PoiInfo poiInfo = poiResult.getPoiInfoAt(0);
//坐标转换（wgs84 -> 地图坐标）
coordSysTranslator.convert(ref poiInfo);
// 加入跟踪层高亮显示
soGeoPoint geoPoint = new soGeoPoint();
geoPoint.x = poiInfo.x;
geoPoint.y = poiInfo.y;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)geoPoint, style, poiInfo.name);
//计算扩大一圈的面
searchBoundGeometry = geoPoint.SpatialOperator.Buffer(radius, 25);
////将查询结果加入到选择集中，使其高亮显示
//objSelection = this.axSuperMap1.selection;
//objSelection.FromRecordset(objRd);
this.axSuperMap1.TrackingLayer.RemoveEvent("SearchBound");
style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Blue);
style.BrushStyle = 1;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)searchBoundGeometry, style, "SearchBound");
//刷新地图窗口
viewBounds(searchBoundGeometry.Bounds);
if (!this.comboBoxQueryKey.Items.Contains(key))
{
this.comboBoxQueryKey.Items.Add(key);
}
}
private void recordsetToTrackingLayer(soRecordset objRd)
{
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Red);
//style.BrushStyle = 0;
style.BrushOpaqueRate = 50;
objRd.MoveFirst();
while (!objRd.IsEOF())
{
soGeometry geo = objRd.GetGeometry();
this.axSuperMap1.TrackingLayer.AddEvent(geo, style, "Search");
objRd.MoveNext();
}
}
private void listBoxPoiResult_SelectedIndexChanged(object sender, EventArgs e)
{
this.axSuperMap1.TrackingLayer.RemoveEvent("selectPoiInfo");
PoiInfo poiInfo = (PoiInfo)this.listBoxPoiResult.SelectedItem;
if (poiInfo != null)
{
// 加入跟踪层高亮显示
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Red);
style.SymbolSize = 30;
soGeoPoint geoPoint = new soGeoPoint();
geoPoint.x = poiInfo.x;
geoPoint.y = poiInfo.y;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)geoPoint, style, "selectPoiInfo");
this.axSuperMap1.TrackingLayer.Refresh();
}
}
private void axSuperMap1_Tracked(object sender, EventArgs e)
{
//if (e.dTotalArea > 0) this.staregionvalue.Text = e.dTotalArea.ToString();
//if (e.dCurrentLength > 0) this.stadisvalue.Text = e.dCurrentLength.ToString();
//if (e.dTotalLength > 0) this.statotledisvalue.Text = e.dTotalLength.ToString();
if (this.axSuperMap1.Action == SuperMapLib.seAction.scaTrackRectangle ||
this.axSuperMap1.Action == SuperMapLib.seAction.scaTrackCircle)
{
//显示绘制的统计范围
if (this.axSuperMap1.TrackedGeometry.Type == seGeometryType.scgRect)
{
this.searchBoundGeometry = ((soGeoRect)this.axSuperMap1.TrackedGeometry).ConvertToRegion();
}
else if (this.axSuperMap1.TrackedGeometry.Type == seGeometryType.scgCircle)
{
this.searchBoundGeometry = ((soGeoCircle)this.axSuperMap1.TrackedGeometry).ConvertToRegion(72);
}
this.axSuperMap1.TrackingLayer.RemoveEvent("SearchBound");
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Blue);
style.BrushStyle = 1;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)searchBoundGeometry, style, "SearchBound");
}
}
/// <summary>
/// 查询poi
/// </summary>
private void searchpoi()
{
String key = this.textBoxItemSearchKey.TextBox.Text.Trim();
if (key.Length == 0 || key == tipPOIKey)
{
MessageBox.Show("请输入搜索关键字！", msgCaption);
return;
}
this.listBoxPoiResult.Items.Clear();
this.axSuperMap1.TrackingLayer.ClearEvents();
if (!poiSearch.IsOpen)
{
MessageBox.Show("找不到POI索引！", msgCaption);
return;
}
// poi查询
PoiResult poiResult = poiSearch.search(key);
if (poiResult == null || poiResult.Count == 0)
{
MessageBox.Show("找不到数据！", msgCaption);
return;
}
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Blue);
style.SymbolSize = 30;
soRect rect = new soRect();
//获取查询结果
for (int i = 0; i < Math.Min(poiResult.Count,200); i++)
{
PoiInfo poiInfo = poiResult.getPoiInfoAt(i);
//坐标转换（wgs84 -> 地图坐标）
coordSysTranslator.convert(ref poiInfo);
// 加了结果列表
this.listBoxPoiResult.Items.Add(poiInfo);
// 加入跟踪层高亮显示
soGeoPoint geoPoint = new soGeoPoint();
geoPoint.x = poiInfo.x;
geoPoint.y = poiInfo.y;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)geoPoint, style, poiInfo.name);
//计算范围
if (i==0)
{
//第一个
rect.Left = poiInfo.x;
rect.Right = poiInfo.x;
rect.Bottom = poiInfo.y;
rect.Top = poiInfo.y;
}
else
{
//向外扩张
if (rect.Left > poiInfo.x)
{
rect.Left = poiInfo.x;
}
if (rect.Right < poiInfo.x)
{
rect.Right = poiInfo.x;
}
if (rect.Bottom > poiInfo.y)
{
rect.Bottom = poiInfo.y;
}
if (rect.Top < poiInfo.y)
{
rect.Top = poiInfo.y;
}
}
}
//viewAllPoi(this.listBoxPoiResult.Items);
showRigthPanel(true, 1);
if (poiResult.Count == 1)
{
axSuperMap1.CenterX = rect.CenterPoint().x;
axSuperMap1.CenterY = rect.CenterPoint().y;
}
else
{
viewBounds(rect);
}
axSuperMap1.Refresh();
}
/// <summary>
/// 查询地块，并统计出来
/// </summary>
private void searchdikuai()
{
if (this.searchBoundGeometry == null)
{
return;
}
String dsName = tudi_datasetNames[tudi_curdatasetNameIndex];
//构造查询条件
String expression = "";
Boolean alltype = false;
if (this.comboBoxType.Text == allType)
{
alltype = true;
}
else
{
TypeCodeNode selectType = (TypeCodeNode)this.comboBoxType.SelectedItem;
if (selectType != null)
{
expression = String.Format("{0} = {1}", tudi_TypeFields[tudi_curdatasetNameIndex], selectType.code);
}
}
SuperMapLib.soDatasetVector objDtv; //矢量数据集
SuperMapLib.soDataset objDt;
SuperMapLib.soRecordset objRd; //记录集
if (this.axSuperWorkspace1.Datasources.Count == 0)
{
MessageBox.Show("找不到数据源！", msgCaption);
return;
}
//从工作空间中获取数据源
SuperMapLib.soDataSource objDS = this.axSuperWorkspace1.Datasources[tudi_dataSourceIndex];
if (objDS == null || objDS.Datasets.Count == 0)
{
MessageBox.Show("找不到数据集！", msgCaption);
return;
}
//从数据源中获取数据集
objDt = objDS.Datasets[dsName];
if (objDt == null)
{
MessageBox.Show("找不到数据集！", msgCaption);
return;
}
objDtv = (SuperMapLib.soDatasetVector)objDt;
//使用 SQL 过滤条件从数据集中查询出记录集，SQL 条件的 WHERE 子句部分从编辑框中获取。( Query 方法只适用于 soDatasetVector 类对象)
objRd = objDtv.QueryByDistance((soGeometry)searchBoundGeometry, 0, expression);
if (objRd == null || objRd.RecordCount == 0)
{
MessageBox.Show("找不到数据！", msgCaption);
return;
}
//将查询结果加入到选择集中，使其高亮显示
//objSelection = this.axSuperMap1.selection;
//objSelection.FromRecordset(objRd);
//刷新地图窗口
this.axSuperMap1.Refresh();
//统计查询的数据
Dictionary<String, Double> dic = new Dictionary<String, Double>();
double allArea = 0;
this.axSuperMap1.TrackingLayer.ClearEvents();
objRd.MoveFirst();
while (!objRd.IsEOF())
{
soGeometry geo = objRd.GetGeometry();
if (geo.Type == SuperMapLib.seGeometryType.scgRegion)
{
// 对面进行裁剪，保留相交的部分
soGeometry geoIntersection = geo.SpatialOperator.Intersection((soGeometry)searchBoundGeometry);
if (geoIntersection != null)
{
//按分类统计面积
String type = objRd.GetFieldValueText(tudi_TypeFields[tudi_curdatasetNameIndex]);//类型
//type = type.Substring(0, 2);
String typeName = typeCodeTable.getNameByCode(type);
double area = 0; //面积
if (objDS.PJCoordSys.Type == sePJCoordSysType.scPCS_LONGITUDE_LATITUDE)
{
area = ((soGeoRegion)geoIntersection).GetPreciseArea(objDS.PJCoordSys);
}
else
{
area = ((soGeoRegion)geoIntersection).Area;
}
if (dic.ContainsKey(typeName))
{
dic[typeName] += area;
}
else
{
dic.Add(typeName, area);
}
//统计总面积
allArea += area;
// 加入到跟踪层，用以高亮显示
soStyle style = new soStyle();
style.PenColor = Util.ColorToUInt32(Color.Red);
//style.BrushStyle = 0;
style.BrushOpaqueRate = 50;
this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)geoIntersection, style, "SearchDikuai");
}
}
objRd.MoveNext();
}
//显示统计结果
if (alltype)
{
//图标方式
ChartForm cf = new ChartForm();
cf.initData(dic);
cf.ShowDialog(this);
}
else
{
//对话框方式
String msg = String.Format("总面积为{0}", Util.formatArea(allArea));
MessageBox.Show(msg, msgCaption);
}
}
