本文整理汇总了C++中DBNetworkIF::Delta方法的典型用法代码示例。如果您正苦于以下问题：C++ DBNetworkIF::Delta方法的具体用法？C++ DBNetworkIF::Delta怎么用？C++ DBNetworkIF::Delta使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DBNetworkIF的用法示例。
在下文中一共展示了DBNetworkIF::Delta方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: RGISAnNetworkStreamLinesCBK
void RGISAnNetworkStreamLinesCBK (Widget widget,RGISWorkspace *workspace,XmAnyCallbackStruct *callData)
{
char *selection;
DBDataset *dataset = UIDataset ();
DBObjData *netData = dataset->Data ();
DBObjTable *cellTable = netData->Table (DBrNCells);
DBObjData *arcData = new DBObjData ("",DBTypeVectorLine);
DBNetworkIF *netIF = new DBNetworkIF (netData);
static Widget fieldSelect = (Widget) NULL;
widget = widget; callData = callData;
if (fieldSelect == (Widget) NULL) fieldSelect = UISelectionCreate ((char *) "Select Field");
if ((selection = UISelectObject (fieldSelect,(DBObjectLIST<DBObject> *) cellTable->Fields (),DBTableFieldIsInteger)) == (char *) NULL)
return;
if ((_RGISAnNetOrderField = cellTable->Field (selection)) == (DBObjTableField *) NULL)
{ CMmsgPrint (CMmsgAppError, "Field Selection Error in: %s %d",__FILE__,__LINE__); return; }
arcData->Document (DBDocGeoDomain,netData->Document (DBDocGeoDomain));
arcData->Document (DBDocSubject,"Stream Lines");
if (UIDataHeaderForm (arcData))
{
DBInt cellID;
char objName [DBStringLength];
DBVLineIF *lineIF = new DBVLineIF (arcData);
DBObjTable *cellTable = netData->Table (DBrNCells);
DBObjTable *lineTable = arcData->Table (DBrNItems);
DBObjTableField *basinFLD = new DBObjTableField (DBrNBasin,DBTableFieldInt,"%8d",sizeof (DBInt));
DBObjTableField *fieldFLD = new DBObjTableField (_RGISAnNetOrderField->Name (),
_RGISAnNetOrderField->Type (),
_RGISAnNetOrderField->Format (),
_RGISAnNetOrderField->Length ());
DBObjTableField *lengthFLD = new DBObjTableField (RGISNetStreamLength,DBTableFieldFloat,"%10.1f",sizeof (DBFloat4));
DBObjTableField *areaFLD = new DBObjTableField (RGISNetStreamArea,DBTableFieldFloat,"%10.1f",sizeof (DBFloat4));
DBObjTableField *basinAreaFLD = new DBObjTableField (RGISNetBasinArea,DBTableFieldFloat,"%10.1f",sizeof (DBFloat4));
DBObjTableField *nextFLD = new DBObjTableField (RGISNetStreamNext,DBTableFieldInt,"%6d",sizeof (DBInt));
DBObjRecord *cellRec, *toCellRec, *lineRec;
arcData->Projection (netData->Projection ());
arcData->Precision (netData->Precision ());
arcData->MaxScale (netData->MaxScale ());
arcData->MinScale (netData->MinScale ());
lineTable->AddField (basinFLD);
lineTable->AddField (fieldFLD);
lineTable->AddField (lengthFLD);
lineTable->AddField (areaFLD);
lineTable->AddField (basinAreaFLD);
lineTable->AddField (nextFLD);
cellTable->AddField (_RGISAnNetStreamIDFLD = new DBObjTableField ("StreamID",DBTableFieldInt,"%8d",sizeof (DBInt)));
_RGISAnNetStreamID = 0;
UIPauseDialogOpen ((char *) "Creating Stream Lines");
cellID = netIF->CellNum () - 1;
cellRec = netIF->Cell (cellID);
if (lineIF->NewSymbol ("Default Symbol") == (DBObjRecord *) NULL)
{ CMmsgPrint (CMmsgAppError, "Symbol Creation Error in: %s %d",__FILE__,__LINE__); return; }
for (;cellID >= 0;--cellID)
{
cellRec = netIF->Cell (cellID);
if (((toCellRec = netIF->ToCell (cellRec)) == (DBObjRecord *) NULL) ||
(_RGISAnNetOrderField->Int (cellRec) != _RGISAnNetOrderField->Int (toCellRec)) ||
(netIF->CellOrder (cellRec) != netIF->CellOrder (toCellRec)))
{
if (UIPause ((netIF->CellNum () - cellRec->RowID ()) * 100 / netIF->CellNum ())) goto Stop;
sprintf (objName,"Line: %5d",_RGISAnNetStreamID + 1);
if ((lineRec = lineIF->NewItem (objName)) == (DBObjRecord *) NULL)
{ CMmsgPrint (CMmsgAppError, "Line Insertion Error in: %s %d",__FILE__,__LINE__); return; }
nextFLD->Int (lineRec,toCellRec == (DBObjRecord *) NULL ? 0 : _RGISAnNetStreamIDFLD->Int (toCellRec) + 1);
basinFLD->Int (lineRec,netIF->CellBasinID (cellRec));
fieldFLD->Int (lineRec,_RGISAnNetOrderField->Int (cellRec));
_RGISAnNetVertex = 0;
netIF->UpStreamSearch (_RGISAnNetworkCellRec = cellRec,(DBNetworkACTION) _RGISAnNetworkUpStreamAction);
lineIF->FromNode (lineRec,lineIF->Node (netIF->Center (_RGISAnNetworkCellRec),true));
lineIF->ToNode (lineRec,lineIF->Node (netIF->Center (cellRec) + netIF->Delta (cellRec),true));
_RGISAnNetArea = netIF->CellArea (_RGISAnNetworkCellRec);
if (_RGISAnNetVertex > 1)
{
if (_RGISAnNetVertexNum < _RGISAnNetVertex - 1)
{
_RGISAnNetCoord = (DBCoordinate *) realloc (_RGISAnNetCoord,(_RGISAnNetVertex - 1) * sizeof (DBCoordinate));
if (_RGISAnNetCoord == (DBCoordinate *) NULL)
{ CMmsgPrint (CMmsgSysError, "Memory Allocation Error in: %s %d",__FILE__,__LINE__); return; }
}
_RGISAnNetVertex = 0;
netIF->DownStreamSearch (netIF->ToCell (_RGISAnNetworkCellRec),(DBNetworkACTION) _RGISAnNetworkDownStreamAction);
}
else _RGISAnNetVertex = 0;
lineIF->Vertexes (lineRec,_RGISAnNetCoord,_RGISAnNetVertex);
lineIF->ItemSymbol (lineRec,lineIF->Symbol (0));
lengthFLD->Float (lineRec,netIF->CellBasinLength (cellRec));
areaFLD->Float (lineRec,_RGISAnNetArea);
basinAreaFLD->Float (lineRec,netIF->CellBasinArea (cellRec));
_RGISAnNetStreamID += 1;
}
}
//.........这里部分代码省略.........