//统计最低温
private cityTeme getMinTemp()
{
cityTeme CT2 = new cityTeme("低温城市", 0.0);
IFeatureLayer featLayer = (IFeatureLayer)Utilities.GetLayerByName("省市", axMapControl1.Map);
IFeatureClass featClass = featLayer.FeatureClass;
IDataStatistics maxTemp = new DataStatistics();
IDataStatistics minTemp = new DataStatistics();
IFeatureCursor featCursor;
IQueryFilter queryfilter = new QueryFilterClass();
featCursor = featClass.Search(null, false);
ICursor cursor = (ICursor)featCursor;
minTemp.Cursor = cursor;
minTemp.Field = "LowTemperature";
IStatisticsResults MINtemp;
MINtemp = minTemp.Statistics;
CT2.Teme = MINtemp.Minimum;
String minWhereClause = "[LowTemperature] = " + CT2.Teme;
queryfilter.WhereClause = minWhereClause;
featCursor = featClass.Search(queryfilter, false);
IFeature MINpFeature = featCursor.NextFeature();
if (MINpFeature != null)
{
int index2 = featClass.FindField("NAME");
CT2.City = MINpFeature.get_Value(index2).ToString();
}
return(CT2);
}
private void Form1_Load(object sender, EventArgs e)
{
_mapPath = Application.StartupPath + "\\Map\\Weather.Mxd";
axMapControl1.LoadMxFile(_mapPath);
string[] provinces = new string[] { "全国", "黑龙江省", "内蒙古自治区", "新疆维吾尔自治区", "吉林省", "甘肃省", "河北省", "北京市", "山西省", "天津市", "陕西省", "宁夏回族自治区", "青海省", "辽宁省", "山东省", "西藏自治区", "河南省", "江苏省", "安徽省", "四川省", "湖北省", "重庆市", "上海市", "浙江省", "湖南省", "江西省", "云南省", "贵州省", "广西壮族自治区", "福建省", "台湾省", "海南省", "广东省", "香港特别行政区", "澳门" };
ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop);
foreach (string str in provinces)
{
comboBox1.Items.Add(str);
}
comboBox1.SelectedIndex = 0;
QueryTool qryTool = new QueryTool();
axToolbarControl1.AddItem(qryTool, -1, 0, false, -1, esriCommandStyles.esriCommandStyleIconOnly);
qryTool.LabelEvent += new QueryTool.LabelEventHandler(qryTool_LabelEvent);
RemoveLabesCmd delete = new RemoveLabesCmd();
axToolbarControl1.AddItem(delete, -1, 0, false, -1, esriCommandStyles.esriCommandStyleIconOnly);
delete.LabelEvent += new RemoveLabesCmd.LabelEventHandler(revLabels_RemoveLabelsEvent);
ZoomtoProvince(provinces[0]);
InitialWeather();
AddField();
cityTeme cityteme1 = getMaxTemp();
cityTeme cityteme2 = getMinTemp();
label3.Text = "明日气温最高的城市：" + cityteme1.City + "\n温度为:" + cityteme1.Teme + "℃";
label4.Text = "明日气温最低的城市：" + cityteme2.City + "\n温度为:" + cityteme2.Teme + "℃";
}
//统计最低温
private cityTeme getMinTemp()
{
cityTeme CT2 = new cityTeme("低温城市", 0.0);
IFeatureLayer featLayer = (IFeatureLayer)Utilities.GetLayerByName("省市", axMapControl1.Map);
IFeatureClass featClass = featLayer.FeatureClass;
IDataStatistics maxTemp = new DataStatistics();
IDataStatistics minTemp = new DataStatistics();
IFeatureCursor featCursor;
IQueryFilter queryfilter = new QueryFilterClass();
featCursor = featClass.Search(null, false);
ICursor cursor = (ICursor)featCursor;
minTemp.Cursor = cursor;
minTemp.Field = "LowTemperature";
IStatisticsResults MINtemp;
MINtemp = minTemp.Statistics;
CT2.Teme = MINtemp.Minimum;
String minWhereClause = "[LowTemperature] = " + CT2.Teme;
queryfilter.WhereClause = minWhereClause;
featCursor = featClass.Search(queryfilter, false);
IFeature MINpFeature = featCursor.NextFeature();
if (MINpFeature != null)
{
int index2 = featClass.FindField("NAME");
CT2.City = MINpFeature.get_Value(index2).ToString();
}
return CT2;
}