private void buttonItemClear_Click(object sender, EventArgs e)
{
//清空选择集和跟踪层
this.axSuperMap1.TrackingLayer.ClearEvents();
this.axSuperMap1.selection.RemoveAll();
this.axSuperMap1.Refresh();
this.searchBoundGeometry = null;
}
/// <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 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");
}
}
