Object Arx实用函数收集汇总.doc

//添加HatchAcDbObjectId CreateHatch(AcDbObjectId dbOId,char cLayer[], char cPattern[] = SOLID, int nColor = 256, double dAngle = 0.0, double dScale = 1.0, AcDbDatabase * pDbDatab = acdbHostApplicationServices()-workingDatabase()){AcCmColor CmC;AcDbObjectId DbOId;AcDbObjectIdArray DbOIdA(0, 2);AcDbBlockTable * pDbBT;AcDbBlockTableRecord * pDbBTR;AcGeVector3d normal(0.0, 0.0, 1.0);DbOIdA.append(dbOId);AcDbHatch* pDbHat = new AcDbHatch();pDbHat-setDatabaseDefaults();pDbHat-setAssociative(Adesk::kTrue); // BUG: doesnt do squat! have to set the reactor yourself to get associativity!pDbHat-appendLoop(AcDbHatch::kExternal, DbOIdA);pDbHat-setPatternScale(dScale);pDbHat-setPatternAngle(dAngle);pDbHat-setPattern(AcDbHatch::kPreDefined, cPattern);pDbHat-setNormal(normal);pDbHat-evaluateHatch(); // crucial call or nothing gets displayed!pDbDatab-getSymbolTable(pDbBT, AcDb::kForRead);pDbBT-getAt(ACDB_MODEL_SPACE, pDbBTR, AcDb::kForWrite);pDbBTR-appendAcDbEntity(DbOId, pDbHat);pDbHat-setLayer(cLayer);CmC.setColorIndex(nColor);((AcDbEntity *)pDbHat)-setColor(CmC);pDbBT-close();pDbBTR-close();pDbHat-close();return DbOId;} //************************************************************************//函数名称:drawDonutAtPoint//函数类型:void //返回值://功能描述://函数作者:Darcy//创建日期:2003-x-x//参数列表://变量名:nPt 变量类型:const AcGePoint2d 变量说明:中点//变量名:nRadius 变量类型:const double 变量说明:半径//************************************************************************void drawDonutAtPoint(const AcGePoint2d nPt,const double nRadius){AcGePoint2d pt;AcDbPolyline * pPline = new AcDbPolyline(2);pt = nPt;pt.x -= nRadius;pPline-addVertexAt( 0 , pt , 1.0 , nRadius*2.0 , nRadius*2.0);pt.x += nRadius * 2.0;pPline-addVertexAt( 1 , pt , 1.0 , nRadius*2.0 , nRadius*2.0);pPline-setClosed(Adesk::kTrue);//添加到当前数据库：addToCurrentSpaceAndClose(pPline);} 我也跟几贴，得点爱心币，互相交流//得到指定层上的所有实体Acad::ErrorStatus CDrawFunction::getAllEntity(AcDbDatabase *pDb,AcDbObjectId