void CarUpdate ()
{
CCar* c;
unsigned now;
if (!TextureReady () || !EntityReady ())
return;
now = GetTickCount ();
if (next_update > now)
return;
next_update = now + UPDATE_INTERVAL;
for (c = head; c; c = c->m_next)
c->Update ();
}
void __fastcall TGetTrackThread::GetLatestStatus()
{
//2001.12.25 修正運作方式為只取近期有更動過之資料,以加速大量資料時的處理速度
//2002.5.6 修正運作方式為比對UpdateTime,有更動過才更新
//2002.5.6 將由Database_Local的Database component轉換至本身開啟
sCarStatus CarStatus;
memset(&CarStatus,0,sizeof(sCarStatus)); //RESET CarStatus 的記憶體
TQuery* pQArea = new TQuery(NULL); //free in last line
pQArea->DatabaseName = "DB_DCH";
pQArea->SQL->Add("SELECT * FROM tArea");
TQuery* pQ_LatestStatus = new TQuery(NULL); //free in the last line
pQ_LatestStatus->DatabaseName = "DB_DCH";
pQ_LatestStatus->SQL->Add("SELECT * FROM tLatestStatus");
try
{
pQArea->Active = true;
for(pQ_LatestStatus->Active = true; !pQ_LatestStatus->Eof; pQ_LatestStatus->Next())
{
if(Terminated)
{ //突發性結束
delete pQArea;
delete pQ_LatestStatus;
return;
}
AnsiString LocatorNo = pQ_LatestStatus->FieldByName("LocatorNo")->AsString;
CCar* pCar = CallCenter_Main_Form->GetCarByLocatorNo(LocatorNo);
if(pCar)
{
//有更動過的資料才更新,以RecvTime來判斷是否更動過資料!
TDateTime NewUpdateTime = pQ_LatestStatus->FieldByName("UpdateTime")->AsDateTime;
if(pCar->LatestStatusUpdateTime != NewUpdateTime)
{
pCar->LatestStatusUpdateTime = NewUpdateTime;
strcpy(CarStatus.m_szLocatorNo,LocatorNo.c_str());
strcpy(CarStatus.m_szRecvDate,pQ_LatestStatus->FieldByName("RecvDate")->AsString.c_str());
//2002.5.10 轉換RecvTime為六位數
AnsiString RecvTimeStr = pQ_LatestStatus->FieldByName("RecvTime")->AsString.SubString(1,6);
strcpy(CarStatus.m_szRecvTime,RecvTimeStr.c_str());
strcpy(CarStatus.m_szSendDate,pQ_LatestStatus->FieldByName("SendDate")->AsString.c_str());
strcpy(CarStatus.m_szSendTime,pQ_LatestStatus->FieldByName("SendTime")->AsString.c_str());
CarStatus.m_iStatus = pQ_LatestStatus->FieldByName("CarStatus")->AsInteger;
CarStatus.m_iStatusHandle = pQ_LatestStatus->FieldByName("StatusHandle")->AsInteger;
CarStatus.m_iLon = pQ_LatestStatus->FieldByName("Lon")->AsInteger;
CarStatus.m_iLat = pQ_LatestStatus->FieldByName("Lat")->AsInteger;
CarStatus.m_sSpeed = pQ_LatestStatus->FieldByName("Speed")->AsInteger;
CarStatus.m_dMileage = pQ_LatestStatus->FieldByName("Mileage")->AsFloat; //單位公里
CarStatus.ReportRate = pQ_LatestStatus->FieldByName("ReportRate")->AsInteger; //回報頻率
CarStatus.m_szPlaceName = pQ_LatestStatus->FieldByName("PlaceName")->AsString;
CarStatus.m_iDistID = pQ_LatestStatus->FieldByName("DistID")->AsInteger; //行政區編號
//取得行政區中文名稱
CarStatus.DistName = NULL;
for(pQArea->First(); !pQArea->Eof; pQArea->Next())
{
if(CarStatus.m_iDistID == pQArea->FieldByName("AreaID")->AsInteger)
{
CarStatus.DistName = pQArea->FieldByName("CName")->AsString;
break;
}
}
pCar->Update(&CarStatus);
pCar->ReportCheckRate = pQ_LatestStatus->FieldByName("ReportChkRate")->AsFloat; //回報檢查頻率
pCar->GPSLock = pQ_LatestStatus->FieldByName("GPSLock")->AsBoolean;
memset(&CarStatus,0,sizeof(sCarStatus)); //RESET CarStatus 的記憶體
}
}
}
}
catch(EDBEngineError &E)
{
DataModule1->EstablishConnect(1);
}
catch(...)
{
}
delete pQArea;
delete pQ_LatestStatus;
}