本文整理汇总了C++中DBNetworkIF::ColNum方法的典型用法代码示例。如果您正苦于以下问题：C++ DBNetworkIF::ColNum方法的具体用法？C++ DBNetworkIF::ColNum怎么用？C++ DBNetworkIF::ColNum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::ColNum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: RecalcExtent
void DBObjData::RecalcExtent() {
DBRegion extent;
switch (Type()) {
case DBTypeVectorPoint:
case DBTypeVectorLine:
case DBTypeVectorPolygon: {
DBVectorIF *vectorIF = new DBVectorIF(this);
DBInt recordID;
for (recordID = 0; recordID < vectorIF->ItemNum(); ++recordID)
extent.Expand(Extent(vectorIF->Item(recordID)));
delete vectorIF;
}
break;
case DBTypeGridDiscrete:
case DBTypeGridContinuous: {
DBGridIF *gridIF = new DBGridIF(this);
extent.LowerLeft = Extent().LowerLeft;
extent.UpperRight.X = extent.LowerLeft.X + gridIF->ColNum() * gridIF->CellWidth();
extent.UpperRight.Y = extent.LowerLeft.Y + gridIF->RowNum() * gridIF->CellHeight();
delete gridIF;
}
break;
case DBTypeNetwork: {
DBNetworkIF *netIF = new DBNetworkIF(this);
extent.LowerLeft = Extent().LowerLeft;
extent.UpperRight.X = extent.LowerLeft.X + netIF->ColNum() * netIF->CellWidth();
extent.UpperRight.Y = extent.LowerLeft.Y + netIF->RowNum() * netIF->CellHeight();
delete netIF;
}
break;
case DBTypeTable:
default:
return;
}
Extent(extent);
}