// This function creates a new AcDbLayerTableRecord, fills
// it in, and adds it to the layer table
//
// THE FOLLOWING CODE APPEARS IN THE SDK DOCUMENT.
//
void
addLayer()
{
AcDbLayerTable *pLayerTbl;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pLayerTbl, AcDb::kForWrite);
if (!pLayerTbl->has(_T("ASDK_TESTLAYER"))) {
AcDbLayerTableRecord *pLayerTblRcd
= new AcDbLayerTableRecord;
pLayerTblRcd->setName(_T("ASDK_TESTLAYER"));
pLayerTblRcd->setIsFrozen(0);// layer to THAWED
pLayerTblRcd->setIsOff(0); // layer to ON
pLayerTblRcd->setVPDFLT(0); // viewport default
pLayerTblRcd->setIsLocked(0);// un-locked
AcCmColor color;
color.setColorIndex(1); // set color to red
pLayerTblRcd->setColor(color);
// For linetype, we need to provide the object ID of
// the linetype record for the linetype we want to
// use. First, we need to get the object ID.
//
AcDbLinetypeTable *pLinetypeTbl;
AcDbObjectId ltId;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pLinetypeTbl, AcDb::kForRead);
if ((pLinetypeTbl->getAt(_T("DASHED"), ltId))
!= Acad::eOk)
{
acutPrintf(_T("\nUnable to find DASHED")
_T(" linetype. Using CONTINUOUS"));
// CONTINUOUS is in every drawing, so use it.
//
pLinetypeTbl->getAt(_T("CONTINUOUS"), ltId);
}
pLinetypeTbl->close();
pLayerTblRcd->setLinetypeObjectId(ltId);
pLayerTbl->add(pLayerTblRcd);
pLayerTblRcd->close();
pLayerTbl->close();
} else {
pLayerTbl->close();
acutPrintf(_T("\nlayer already exists"));
}
}
//-------------------------------------------------------------------------------------------
//
// 功能： 向层表中添加记录（创建新层)
//
//
// 作者：Qin H.X.
//
// 日期：200709
//
// 历史：无
//
//----------------------------------------------------------------------------------------------
// - CGDCH03.AddLayer command (do not rename)
static void CGDCH03AddLayer(void)
{
//先声明一个空的层表指针
AcDbLayerTable *pLayerTbl;
//通过当前图形数据库获取层表对象指针
//打开层表为写入状态
acdbHostApplicationServices()->workingDatabase() ->getSymbolTable(pLayerTbl, AcDb::kForWrite);
//判断层是否已经存在
if(!pLayerTbl->has(_T("MyLayer"))) {
//新层表记录
AcDbLayerTableRecord *pLayerTblRcd= new AcDbLayerTableRecord;
pLayerTblRcd->setName(_T("MyLayer")); //设定图层名
pLayerTblRcd->setIsFrozen(0); // 图层解冻
pLayerTblRcd->setIsOff(0); // 打开图层
pLayerTblRcd->setVPDFLT(0); // 使用默认视口
pLayerTblRcd->setIsLocked(0); // 图层解锁
// AcCmColor是ACAD颜色管理类
AcCmColor color;
color.setColorIndex(1);
// 图层颜色为红色
pLayerTblRcd->setColor(color);
// 为给新图层设置线型，要得到线型表记录的ID。
// 以下的代码演示如何得到并操作记录ID
AcDbLinetypeTable *pLinetypeTbl;
AcDbObjectId ltId;
acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pLinetypeTbl, AcDb::kForRead);
if ((pLinetypeTbl->getAt(_T("DASHED"), ltId))!= Acad::eOk) {
acutPrintf(_T("\n未发现DASHED线型使用CONTINUOUS线型"));
// 每一个不完全空的图形数据库的线型表中都有线型名为CONTINUOUS 的默认记录
pLinetypeTbl->getAt(_T("CONTINUOUS"), ltId);
}
pLinetypeTbl->close();
pLayerTblRcd->setLinetypeObjectId(ltId);
pLayerTbl->add(pLayerTblRcd);
pLayerTblRcd->close();
pLayerTbl->close();
} else {
pLayerTbl->close();
acutPrintf(_T("\n层已经存在"));
}
}
BOOL Additional_Class::Get_LineTypeID( CString linetype, AcDbObjectId &linetypeid )
{
AcDbLinetypeTable *pLtpTbl;
acdbHostApplicationServices()->workingDatabase()->getLinetypeTable(pLtpTbl,AcDb::kForRead);
if (!pLtpTbl->has((linetype )))
{
pLtpTbl->close();
return FALSE;
}
pLtpTbl->getAt(linetype, linetypeid);
pLtpTbl->close();
return TRUE;
}
static Acad::ErrorStatus GetLinetypeId(const CString& linetype, AcDbObjectId &linetypeId)
{
AcDbLinetypeTable *pLtpTbl;
acdbHostApplicationServices()->workingDatabase()->getLinetypeTable(pLtpTbl, AcDb::kForRead);
if (!pLtpTbl->has(linetype))
{
pLtpTbl->close();
return Acad::eBadLinetypeName;
}
pLtpTbl->getAt(linetype, linetypeId);
pLtpTbl->close();
return Acad::eOk;
}