如何删除已知的空图层

liub1979

void

我只知道如何创建一个图层如下

createNewLayer()

{

    AcDbLayerTable *pLayerTable;

    acdbHostApplicationServices()->workingDatabase()

        ->getSymbolTable(pLayerTable, AcDb::kForWrite);

    AcDbLayerTableRecord *pLayerTableRecord =

        new AcDbLayerTableRecord;

    pLayerTableRecord->setName("ASDK_MYLAYER");

    // Defaults are used for other properties of 

    // the layer if they are not otherwise specified.

    //

    pLayerTable->add(pLayerTableRecord);

    pLayerTable->close();

    pLayerTableRecord->close();

}

但是删除已知的空图层呢

tianhjk

假设获得图层的指针pLayer

pLayer->earse();

AcDbObjectIdArray idA;

idA.setPhysicalLength(0)

idA.append(pLayer->id());

acdbCurDwg()->purge(idA);

SinyaLiu

在pLayer->earse();之后还要加上一句：pLayer->close();