这段代码哪里有问题,为什么不能显示!!!!!!!!!!

qqwwwee

int i; AcDbObjectId lineId;
AcDbObjectId ptId;
AcGePoint3d Pt; AcDb3dPolyline *pLine = new AcDb3dPolyline(); AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()
->getSymbolTable(pBlockTable, AcDb::kForRead); AcDbBlockTableRecord *pBlockTableRecord;
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,
AcDb::kForWrite);
pBlockTable->close();
for(i=1;i<=10;i++)
{
Pt.x=i;
Pt.y=i*rand();
Pt.z=0.0;
AcDb3dPolylineVertex *pV=new AcDb3dPolylineVertex(Pt);
pLine->appendVertex(ptId,pV);
}
pBlockTableRecord->appendAcDbEntity(lineId, pLine);
pBlockTableRecord->close();
pLine->close();

王咣生

参考: void getUcsToWcsMatrix(AcGeMatrix3d& m, AcDbDatabase* db)
{
ASSERT(db != NULL); if (!acdbUcsMatrix(m, db)) {
m.setToIdentity();
ASSERT(0);
}
} void ucsToWcs(AcGePoint3dArray& ptArray)
{
AcDbDatabase* db = acdbHostApplicationServices()->workingDatabase();
ASSERT(db != NULL); AcGeMatrix3d m;
getUcsToWcsMatrix(m, db); int len = ptArray.length();
for (int i=0; i<len; i++)
ptArray = m * ptArray;
} // ----- asdktest._test command (do not rename)
static void asdktest_test(void)
{
// Add your code for command asdktest._test here
int i; AcDbObjectId lineId;
AcDbObjectId ptId;
AcGePoint3d Pt; AcDb3dPolyline *pLine; AcDbBlockTable *pBlockTable;
acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable, AcDb::kForRead); AcDbBlockTableRecord *pBlockTableRecord;
pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord,AcDb::kForWrite);
pBlockTable->close(); AcGeMatrix3d ucsToWcsMat; acdbUcsMatrix(ucsToWcsMat); AcGePoint3dArray vertices; for(i=1;i<=10;i++)
{
Pt.x=i;
Pt.y=i;
Pt.z=0.0;
vertices.append(Pt);
} pLine = new AcDb3dPolyline(AcDb::k3dSimplePoly, vertices);
pLine->setDatabaseDefaults();

pBlockTableRecord->appendAcDbEntity(lineId, pLine);
pBlockTableRecord->close();
pLine->close();
}

qqwwwee

成功了,非常感谢!