private void cmdSolve_Click(object sender, EventArgs e)
{
try
{
this.lstOutput.Items.Clear();
this.lstOutput.Items.Add("Solving...");
this.SetSolverSettings();
IGPMessages messages = new GPMessagesClass();
if (!this.m_pNAContext.Solver.Solve(this.m_pNAContext, messages, null))
{
this.GetCFOutput("CFRoutes");
}
else
{
this.lstOutput.Items.Add("Partial Result");
}
if (messages != null)
{
for (int i = 0; i < messages.Count; i++)
{
esriGPMessageType type = messages.GetMessage(i).Type;
if (type != esriGPMessageType.esriGPMessageTypeWarning)
{
if (type != esriGPMessageType.esriGPMessageTypeError)
{
goto Label_0116;
}
this.lstOutput.Items.Add("Error " + messages.GetMessage(i).ErrorCode.ToString() + " " +
messages.GetMessage(i).Description);
}
else
{
this.lstOutput.Items.Add("Warning " + messages.GetMessage(i).Description);
}
continue;
Label_0116:
this.lstOutput.Items.Add("Information " + messages.GetMessage(i).Description);
}
}
IGeoDataset dataset = this.m_pNAContext.NAClasses.get_ItemByName("CFRoutes") as IGeoDataset;
IEnvelope extent = dataset.Extent;
if (!extent.IsEmpty)
{
extent.Expand(1.1, 1.1, true);
}
(this.m_pFocusMap as IActiveView).Extent = extent;
(this.m_pFocusMap as IActiveView).Refresh();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
this.cmdSolve.Text = "Find Closest Faclities";
}
}
private void btnGO_Click(object sender, System.EventArgs e)
{
int facilityCount = 0, cutOffVal = 0;
if (txtFacilityCount.Text.Length > 0)
{
facilityCount = Convert.ToInt32(txtFacilityCount.Text);
}
if (txtCutOff.Text.Length > 0)
{
cutOffVal = Convert.ToInt32(txtCutOff.Text);
}
pGISHelper.SetSolverSettings(ref m_pNAContext, cutOffVal, facilityCount, cmbCost.Text, chkOneWay.Checked, chkHierachy.Checked);
IGPMessages pGPMessages = new GPMessagesClass();
IGPMessage pGPMessage = null;
if (m_pNAContext.Solver.Solve(m_pNAContext, pGPMessages, null) == false)
{
for (int ii = 0; ii < pGPMessages.Count; ii++)
{
pGPMessage = pGPMessages.GetMessage(ii);
MessageBox.Show(pGPMessage.Description);
}
pGISHelper.GetCFOutput("CFRoutes", ref m_pNAContext);
}
//'Zoom to the extent of the route
IGeoDataset pGDS;
IEnvelope pEnv;
pGDS = m_pNAContext.NAClasses.get_ItemByName("CFRoutes") as IGeoDataset;
pEnv = pGDS.Extent;
if (!pEnv.IsEmpty)
{
pEnv.Expand(1.1, 1.1, true);
pMainFrm.getMapControl().Extent = pEnv;
}
pMainFrm.getMapControl().Refresh();
}
//��ʼ���������������
private void NetworkSolve()
{
try
{
IGPMessages gpMessages = new GPMessagesClass();
IFeatureClass pFeatCls = null;
IGeoDataset geoDataset = null;
if (!m_NAContext.Solver.Solve(m_NAContext, gpMessages, null))
{
for (int i = 0; i <= m_NAContext.NAClasses.Count - 1; i++)
{
string sName = m_NAContext.NAClasses.get_Name(i);
if (sName == "Routes")
{
geoDataset = m_NAContext.NAClasses.get_ItemByName("Routes") as IGeoDataset;
pFeatCls = geoDataset as IFeatureClass;
// LoadNANetworkLocations("Routes", pFeatCls, 5000);
}
if (sName == "CFRoutes")
{
geoDataset = m_NAContext.NAClasses.get_ItemByName("CFRoutes") as IGeoDataset;
pFeatCls = geoDataset as IFeatureClass;
}
}
IEnvelope pEnvelope = geoDataset.Extent;
if (!pEnvelope.IsEmpty)
pEnvelope.Expand(1.1, 1.1, true);
axMapControl1.Extent = pEnvelope;
axMapControl1.Refresh();
}
else
{
if (gpMessages != null)
{
for (int i = 0; i < gpMessages.Count; i++)
{
switch (gpMessages.GetMessage(i).Type)
{
case esriGPMessageType.esriGPMessageTypeError:
MessageBox.Show("Error " + gpMessages.GetMessage(i).ErrorCode.ToString() + " " + gpMessages.GetMessage(i).Description);
break;
case esriGPMessageType.esriGPMessageTypeWarning:
MessageBox.Show("Warning " + gpMessages.GetMessage(i).Description);
break;
default:
MessageBox.Show("Information " + gpMessages.GetMessage(i).Description);
break;
}
}
}
}
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
}
}
/// <summary>
/// Call the OD cost matrix solver and display the results
/// </summary>
/// <param name="sender">Sender of the event</param>
/// <param name="e">Event</param>
private void cmdSolve_Click(object sender, EventArgs e)
{
this.toolStripStatusLabel1.Text = "Working...";
Initialize();
try
{
lbOutput.Items.Clear();
cmdSolve.Text = "Solving...";
SetSolverSettings();
// Solve
IGPMessages gpMessages = new GPMessagesClass();
if (!m_NAContext.Solver.Solve(m_NAContext, gpMessages, null))
{
// Get the ODLines output
GetODOutput();
}
else
{
lbOutput.Items.Add("Partial Result");
}
// Display Error/Warning/Informative messages
if (gpMessages != null)
{
for (int i = 0; i < gpMessages.Count; i++)
{
switch (gpMessages.GetMessage(i).Type)
{
case esriGPMessageType.esriGPMessageTypeError:
lbOutput.Items.Add("Error " + gpMessages.GetMessage(i).ErrorCode.ToString() + " " + gpMessages.GetMessage(i).Description);
break;
case esriGPMessageType.esriGPMessageTypeWarning:
lbOutput.Items.Add("Warning " + gpMessages.GetMessage(i).Description);
break;
default:
lbOutput.Items.Add("Information " + gpMessages.GetMessage(i).Description);
break;
}
}
}
// Zoom to the extent of the route
IGeoDataset gDataset = m_NAContext.NAClasses.get_ItemByName("ODLines") as IGeoDataset;
IEnvelope envelope = gDataset.Extent;
if (!envelope.IsEmpty)
{
envelope.Expand(1.1, 1.1, true);
axMapControl.Extent = envelope;
}
axMapControl.Refresh();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
cmdSolve.Text = "Find OD Cost Matrix";
}
this.toolStripStatusLabel1.Text = "Done!";
}
private void btnGO_Click(object sender, System.EventArgs e)
{
int facilityCount=0,cutOffVal=0;
if(txtFacilityCount.Text.Length>0)
facilityCount=Convert.ToInt32(txtFacilityCount.Text);
if(txtCutOff.Text.Length>0)
cutOffVal=Convert.ToInt32(txtCutOff.Text);
pGISHelper.SetSolverSettings(ref m_pNAContext,cutOffVal,facilityCount,cmbCost.Text,chkOneWay.Checked,chkHierachy.Checked);
IGPMessages pGPMessages=new GPMessagesClass();
IGPMessage pGPMessage=null;
if(m_pNAContext.Solver.Solve(m_pNAContext, pGPMessages, null)==false){
for(int ii=0;ii<pGPMessages.Count;ii++)
{
pGPMessage=pGPMessages.GetMessage(ii);
MessageBox.Show(pGPMessage.Description);
}
pGISHelper.GetCFOutput("CFRoutes",ref m_pNAContext);
}
//'Zoom to the extent of the route
IGeoDataset pGDS;
IEnvelope pEnv;
pGDS = m_pNAContext.NAClasses.get_ItemByName("CFRoutes") as IGeoDataset;
pEnv = pGDS.Extent;
if(!pEnv.IsEmpty)
{
pEnv.Expand(1.1, 1.1, true);
pMainFrm.getMapControl().Extent = pEnv;
}
pMainFrm.getMapControl().Refresh();
}
/// <summary>
/// 最短路径分析
/// </summary>
/// <param name="mapControl">地图控件</param>
/// <param name="gdbfileName">数据库文件</param>
/// <param name="featureDatasetName">要素集名字</param>
/// <param name="ndsName">网络数据集名字</param>
/// <param name="featureClasses">参数要素类及其阈值,其中键值包括:Stops(路线经过结点),Barriers,PolylineBarriers,PolygonBarriers</param>
/// <param name="isShowDataBase">是否显示网络数据集</param>
/// <param name="isShowNalayer">是否显示网络分析图层</param>
/// <param name="routeLayer">最近路线图层</param>
public static bool Short_Path(AxMapControl mapControl, string gdbfileName, string featureDatasetName, string ndsName, IDictionary <string, DecorateRouteFeatureClass> featureClasses, bool isShowDataBase, bool isShowNalayer, ref ILayer routeLayer)
{
//首先判断输入的参数要素类是否合法
if (!FeatureClassKeyIsRight(featureClasses))
{
throw new Exception("参数字典错误");
}
// mapControl.ClearLayers();
//打开工作空间
IFeatureWorkspace pFeatureWorkspace = OpenWorkspace(gdbfileName) as IFeatureWorkspace;
if (pFeatureWorkspace == null)
{
return(false);
}
//获取网络数据集
INetworkDataset pNetworkDataset = OpenNetworkDataset(pFeatureWorkspace as IWorkspace, featureDatasetName, ndsName);
if (pNetworkDataset == null)
{
Debug.Print("无法获取网络数据集");
return(false);
}
//获取网络分析上下文
INAContext pNAContext = CreateNAContext(pNetworkDataset);
//打开节点图层 一般和网络数据集放置在一起 名称是xxx_Junctions
IFeatureClass pVertexFC = pFeatureWorkspace.OpenFeatureClass(ndsName + "_Junctions");
ILayer pLayer = null;
// 显示网络数据集图层
if (isShowDataBase)
{
INetworkLayer pNetworkLayer = new NetworkLayerClass();
pNetworkLayer.NetworkDataset = pNetworkDataset;
pLayer = pNetworkLayer as ILayer;
pLayer.Name = "网络数据集";
mapControl.AddLayer(pLayer, 0);
}
//创建网络分析图层
INALayer naLayer = pNAContext.Solver.CreateLayer(pNAContext);
//显示网络分析图层
if (isShowNalayer)
{
pLayer = naLayer as ILayer;
pLayer.Name = pNAContext.Solver.DisplayName;
pLayer.SpatialReference = mapControl.SpatialReference;
mapControl.AddLayer(pLayer, 0);
IActiveView pActiveView = mapControl.ActiveView;
IMap pMap = pActiveView.FocusMap;
IGraphicsContainer pGraphicsContainer = pMap as IGraphicsContainer;
mapControl.Refresh();
}
INASolver naSolver = pNAContext.Solver;
//插入相关数据
foreach (var value in featureClasses)
{
LoadNANetWorkLocations(pNAContext, value.Key, value.Value.FeatureClass, value.Value.SnapTolerance);
}
//插入经过点
//LoadNANetWorkLocations(pNAContext,"Stops", stopFeatureClass, 30);
//插入障碍点
// LoadNANetWorkLocations(pNAContext, "Barriers", barriesFeatureClass, 30);
IGPMessages gpMessages = new GPMessagesClass();
// SetSolverSettings(pNAContext);
//寻找最短路径
try
{
pNAContext.Solver.Solve(pNAContext, gpMessages, new CancelTrackerClass());
routeLayer = naLayer.get_LayerByNAClassName("Routes");
}
catch (Exception e)
{
Debug.Print("无法找到最短路径:" + e.Message);
return(false);
}
mapControl.Refresh();
if (gpMessages != null)
{
for (int i = 0; i < gpMessages.Count; i++)
{
switch (gpMessages.GetMessage(i).Type)
{
case esriGPMessageType.esriGPMessageTypeError:
Debug.Print("错误 " + gpMessages.GetMessage(i).ErrorCode.ToString() + " " + gpMessages.GetMessage(i).Description);
break;
case esriGPMessageType.esriGPMessageTypeWarning:
Debug.Print("警告 " + gpMessages.GetMessage(i).Description);
break;
default:
Debug.Print("信息 " + gpMessages.GetMessage(i).Description);
break;
}
}
}
return(true);
}
//路径分析
private void toolStripButton3_Click(object sender, EventArgs e)
{
if (global.networkAnalysis && global.clickedcount > 1)
{
global.networkAnalysis = false;
listBox1.Items.Add("开始进行路径分析求解...");
IGPMessages gpMessages = new GPMessagesClass();
loadNANetworkLocations("Stops", global.inputFClass, 80);
naSolver = global.m_NAContext.Solver;
naSolver.Solve(global.m_NAContext, gpMessages, null);
listBox1.Items.Add("done!");
//获取路径结果
INAStreetDirectionsAgent2 streetAgent;
streetAgent = global.m_NAContext.Agents.get_ItemByName("StreetDirectionsAgent") as INAStreetDirectionsAgent2;
//设置处理结果为中文
//streetAgent.Language = "zh-CN";
streetAgent.Execute(null, null);
INAStreetDirectionsContainer directionsContainer;
directionsContainer = streetAgent.DirectionsContainer as INAStreetDirectionsContainer;
//directionsContainer.SaveAsXML("route.xml");
int directionsCount = directionsContainer.DirectionsCount;
string routeIdName = string.Empty;
string routeString;
for (int index = 0; index < directionsCount; index++)
{
INAStreetDirections naStreetDirections = directionsContainer.get_Directions(index);
routeString = getDirectionsString(naStreetDirections);
getDataTableFromRouteString(routeString);
}
//解决完后，删除图层内容
ITable pTable_inputFClass = global.inputFClass as ITable;
pTable_inputFClass.DeleteSearchedRows(null);
(global.p2DMap as IActiveView).Refresh();
if (gpMessages != null)
{
for (int i = 0; i < gpMessages.Count; i++)
{
switch (gpMessages.GetMessage(i).Type)
{
case esriGPMessageType.esriGPMessageTypeError:
listBox1.Items.Add("错误 " + gpMessages.GetMessage(i).ErrorCode.ToString() + " " + gpMessages.GetMessage(i).Description);
break;
case esriGPMessageType.esriGPMessageTypeWarning:
listBox1.Items.Add("警告 " + gpMessages.GetMessage(i).Description);
break;
default:
listBox1.Items.Add("信息 " + gpMessages.GetMessage(i).Description);
break;
}
}
}
(global.p2DMap as IActiveView).Refresh();
}
else if (global.clickedcount == 1)
{
MessageBox.Show("未选取终点，请继续定位！");
}
else
{
MessageBox.Show("未选取或更新起点和终点，请重新定位！");
}
}
