| 1 | // Created on: 2016-04-19 |
| 2 | // Copyright (c) 2016 OPEN CASCADE SAS |
| 3 | // Created by: Oleg AGASHIN |
| 4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
| 7 | // This library is free software; you can redistribute it and/or modify it under |
| 8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 9 | // by the Free Software Foundation, with special exception defined in the file |
| 10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 11 | // distribution for complete text of the license and disclaimer of any warranty. |
| 12 | // |
| 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. |
| 15 | |
| 16 | #include <BRepMesh_NURBSRangeSplitter.hxx> |
| 17 | #include <GeomAdaptor_Curve.hxx> |
| 18 | #include <IMeshTools_Parameters.hxx> |
| 19 | #include <IMeshData_Wire.hxx> |
| 20 | #include <IMeshData_Edge.hxx> |
| 21 | #include <IMeshData_PCurve.hxx> |
| 22 | #include <GeomAbs_IsoType.hxx> |
| 23 | #include <BRepMesh_GeomTool.hxx> |
| 24 | #include <NCollection_Handle.hxx> |
| 25 | #include <algorithm> |
| 26 | |
| 27 | namespace |
| 28 | { |
| 29 | class AnalyticalFilter |
| 30 | { |
| 31 | public: |
| 32 | //! Constructor. |
| 33 | AnalyticalFilter( |
| 34 | const IMeshData::IFaceHandle& theDFace, |
| 35 | const GeomAbs_IsoType theIsoType, |
| 36 | const Handle(IMeshData::SequenceOfReal)& theParams, |
| 37 | const Handle(IMeshData::SequenceOfReal)& theControlParams, |
| 38 | const Handle(IMeshData::MapOfReal)& theParamsForbiddenToRemove, |
| 39 | const Handle(IMeshData::MapOfReal)& theControlParamsForbiddenToRemove) |
| 40 | : myDFace(theDFace), |
| 41 | mySurface(myDFace->GetSurface()->ChangeSurface().Surface().Surface()), |
| 42 | myIsoU(theIsoType == GeomAbs_IsoU), |
| 43 | myParams(theParams), |
| 44 | myControlParams(theControlParams), |
| 45 | myParamsForbiddenToRemove(theParamsForbiddenToRemove), |
| 46 | myControlParamsForbiddenToRemove(theControlParamsForbiddenToRemove), |
| 47 | myAllocator(new NCollection_IncAllocator(IMeshData::MEMORY_BLOCK_SIZE_HUGE)), |
| 48 | myControlParamsToRemove(new IMeshData::MapOfReal(1, myAllocator)) |
| 49 | { |
| 50 | } |
| 51 | |
| 52 | //! Returns map of parameters supposed to be removed. |
| 53 | const Handle(IMeshData::MapOfReal)& GetControlParametersToRemove( |
| 54 | const IMeshTools_Parameters& theParameters) |
| 55 | { |
| 56 | myParameters = theParameters; |
| 57 | |
| 58 | if (myParameters.MinSize <= Precision::Confusion()) |
| 59 | { |
| 60 | myParameters.MinSize = |
| 61 | Max(IMeshTools_Parameters::RelMinSize() * myParameters.Deflection, |
| 62 | Precision::Confusion()); |
| 63 | } |
| 64 | |
| 65 | Standard_Integer aStartIndex, aEndIndex; |
| 66 | if (myIsoU) |
| 67 | { |
| 68 | aStartIndex = 1; |
| 69 | aEndIndex = myParams->Length(); |
| 70 | } |
| 71 | else |
| 72 | { |
| 73 | aStartIndex = 2; |
| 74 | aEndIndex = myParams->Length() - 1; |
| 75 | } |
| 76 | |
| 77 | for (Standard_Integer i = aStartIndex; i <= aEndIndex; ++i) |
| 78 | { |
| 79 | myCurrParam = myParams->Value(i); |
| 80 | myIso = new GeomAdaptor_Curve(myIsoU ? mySurface->UIso(myCurrParam) : mySurface->VIso(myCurrParam)); |
| 81 | |
| 82 | myPrevControlParam = myControlParams->Value(1); |
| 83 | myIso->D1(myPrevControlParam, myPrevControlPnt, myPrevControlVec); |
| 84 | for (Standard_Integer j = 2; j <= myControlParams->Length();) |
| 85 | { |
| 86 | j += checkControlPointAndMoveOn(j); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | return myControlParamsToRemove; |
| 91 | } |
| 92 | |
| 93 | private: |
| 94 | |
| 95 | //! Checks the given control point for deviation. |
| 96 | //! Returns number of steps to be used to move point iterator. |
| 97 | Standard_Integer checkControlPointAndMoveOn(const Standard_Integer theIndex) |
| 98 | { |
| 99 | Standard_Integer aMoveSteps = 0; |
| 100 | myCurrControlParam = myControlParams->Value(theIndex); |
| 101 | myIso->D1(myCurrControlParam, myCurrControlPnt, myCurrControlVec); |
| 102 | |
| 103 | const Standard_Real aMidParam = 0.5 * (myPrevControlParam + myCurrControlParam); |
| 104 | const gp_Pnt aMidPnt = myIso->Value(aMidParam); |
| 105 | |
| 106 | const Standard_Real aSqDist = BRepMesh_GeomTool::SquareDeflectionOfSegment( |
| 107 | myPrevControlPnt, myCurrControlPnt, aMidPnt); |
| 108 | |
| 109 | const Standard_Real aSqMaxDeflection = myDFace->GetDeflection() * myDFace->GetDeflection(); |
| 110 | if ((aSqDist > aSqMaxDeflection) && |
| 111 | aSqDist > myParameters.MinSize * myParameters.MinSize) |
| 112 | { |
| 113 | // insertion |
| 114 | myControlParams->InsertBefore(theIndex, aMidParam); |
| 115 | } |
| 116 | else |
| 117 | { |
| 118 | // Here we should leave at least 3 parameters as far as |
| 119 | // we must have at least one parameter related to surface |
| 120 | // internals in order to prevent movement of triangle body |
| 121 | // outside the surface in case of highly curved ones, e.g. |
| 122 | // BSpline springs. |
| 123 | if (aSqDist < aSqMaxDeflection && |
| 124 | myControlParams->Length() > 3 && |
| 125 | theIndex < myControlParams->Length()) |
| 126 | { |
| 127 | // Remove too dense points |
| 128 | const Standard_Real aTmpParam = myControlParams->Value(theIndex + 1); |
| 129 | if (checkParameterForDeflectionAndUpdateCache(aTmpParam)) |
| 130 | { |
| 131 | ++aMoveSteps; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | myPrevControlParam = myCurrControlParam; |
| 136 | myPrevControlPnt = myCurrControlPnt; |
| 137 | myPrevControlVec = myCurrControlVec; |
| 138 | |
| 139 | ++aMoveSteps; |
| 140 | } |
| 141 | |
| 142 | return aMoveSteps; |
| 143 | } |
| 144 | |
| 145 | //! Checks whether the given param suits specified deflection. Updates cache. |
| 146 | Standard_Boolean checkParameterForDeflectionAndUpdateCache(const Standard_Real theParam) |
| 147 | { |
| 148 | gp_Pnt aTmpPnt; |
| 149 | gp_Vec aTmpVec; |
| 150 | myIso->D1(theParam, aTmpPnt, aTmpVec); |
| 151 | |
| 152 | const Standard_Real aTmpMidParam = 0.5 * (myPrevControlParam + theParam); |
| 153 | const gp_Pnt aTmpMidPnt = myIso->Value(aTmpMidParam); |
| 154 | |
| 155 | // Lets check next parameter. |
| 156 | // If it also fits deflection, we can remove previous parameter. |
| 157 | const Standard_Real aSqDist = BRepMesh_GeomTool::SquareDeflectionOfSegment( |
| 158 | myPrevControlPnt, aTmpPnt, aTmpMidPnt); |
| 159 | |
| 160 | if (aSqDist < myDFace->GetDeflection() * myDFace->GetDeflection()) |
| 161 | { |
| 162 | // Lets check parameters for angular deflection. |
| 163 | if (myPrevControlVec.SquareMagnitude() < gp::Resolution() || |
| 164 | aTmpVec.SquareMagnitude() < gp::Resolution() || |
| 165 | myPrevControlVec.Angle(aTmpVec) < myParameters.Angle) |
| 166 | { |
| 167 | // For current Iso line we can remove this parameter. |
| 168 | myControlParamsToRemove->Add(myCurrControlParam); |
| 169 | myCurrControlParam = theParam; |
| 170 | myCurrControlPnt = aTmpPnt; |
| 171 | myCurrControlVec = aTmpVec; |
| 172 | return Standard_True; |
| 173 | } |
| 174 | else |
| 175 | { |
| 176 | // We have found a place on the surface refusing |
| 177 | // removement of this parameter. |
| 178 | myParamsForbiddenToRemove ->Add(myCurrParam); |
| 179 | myControlParamsForbiddenToRemove->Add(myCurrControlParam); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | return Standard_False; |
| 184 | } |
| 185 | |
| 186 | private: |
| 187 | |
| 188 | IMeshData::IFaceHandle myDFace; |
| 189 | Handle(Geom_Surface) mySurface; |
| 190 | Standard_Boolean myIsoU; |
| 191 | Handle(IMeshData::SequenceOfReal) myParams; |
| 192 | Handle(IMeshData::SequenceOfReal) myControlParams; |
| 193 | |
| 194 | Handle(IMeshData::MapOfReal) myParamsForbiddenToRemove; |
| 195 | Handle(IMeshData::MapOfReal) myControlParamsForbiddenToRemove; |
| 196 | |
| 197 | Handle(NCollection_IncAllocator) myAllocator; |
| 198 | Handle(IMeshData::MapOfReal) myControlParamsToRemove; |
| 199 | |
| 200 | |
| 201 | IMeshTools_Parameters myParameters; |
| 202 | NCollection_Handle<GeomAdaptor_Curve> myIso; |
| 203 | |
| 204 | Standard_Real myCurrParam; |
| 205 | |
| 206 | Standard_Real myCurrControlParam; |
| 207 | gp_Pnt myCurrControlPnt; |
| 208 | gp_Vec myCurrControlVec; |
| 209 | |
| 210 | Standard_Real myPrevControlParam; |
| 211 | gp_Pnt myPrevControlPnt; |
| 212 | gp_Vec myPrevControlVec; |
| 213 | }; |
| 214 | |
| 215 | //! Adds param to map if it fits specified range. |
| 216 | inline Standard_Boolean addParam( |
| 217 | const Standard_Real& theParam, |
| 218 | const std::pair<Standard_Real, Standard_Real>& theRange, |
| 219 | IMeshData::IMapOfReal& theParams) |
| 220 | { |
| 221 | if (theParam < theRange.first || |
| 222 | theParam > theRange.second) |
| 223 | { |
| 224 | return Standard_False; |
| 225 | } |
| 226 | |
| 227 | theParams.Add(theParam); |
| 228 | return Standard_True; |
| 229 | } |
| 230 | |
| 231 | //! Initializes parameters map using CN intervals. |
| 232 | inline Standard_Boolean initParamsFromIntervals( |
| 233 | const TColStd_Array1OfReal& theIntervals, |
| 234 | const std::pair<Standard_Real, Standard_Real>& theRange, |
| 235 | const Standard_Boolean isSplitIntervals, |
| 236 | IMeshData::IMapOfReal& theParams) |
| 237 | { |
| 238 | Standard_Boolean isAdded = Standard_False; |
| 239 | |
| 240 | for (Standard_Integer i = theIntervals.Lower(); i <= theIntervals.Upper(); ++i) |
| 241 | { |
| 242 | const Standard_Real aStartParam = theIntervals.Value(i); |
| 243 | if (addParam(aStartParam, theRange, theParams)) |
| 244 | { |
| 245 | isAdded = Standard_True; |
| 246 | } |
| 247 | |
| 248 | if (isSplitIntervals && i < theIntervals.Upper()) |
| 249 | { |
| 250 | const Standard_Real aMidParam = (aStartParam + theIntervals.Value(i + 1)) / 2.; |
| 251 | if (addParam(aMidParam, theRange, theParams)) |
| 252 | { |
| 253 | isAdded = Standard_True; |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | return isAdded; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | //======================================================================= |
| 263 | // Function: AdjustRange |
| 264 | // Purpose : |
| 265 | //======================================================================= |
| 266 | void BRepMesh_NURBSRangeSplitter::AdjustRange() |
| 267 | { |
| 268 | BRepMesh_DefaultRangeSplitter::AdjustRange(); |
| 269 | mySurfaceType = GetSurface()->GetType(); |
| 270 | |
| 271 | if (mySurfaceType == GeomAbs_BezierSurface) |
| 272 | { |
| 273 | const std::pair<Standard_Real, Standard_Real>& aRangeU = GetRangeU(); |
| 274 | const std::pair<Standard_Real, Standard_Real>& aRangeV = GetRangeV(); |
| 275 | |
| 276 | myIsValid = !(aRangeU.first < -0.5 || |
| 277 | aRangeU.second > 1.5 || |
| 278 | aRangeV.first < -0.5 || |
| 279 | aRangeV.second > 1.5); |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | //======================================================================= |
| 284 | // Function: GenerateSurfaceNodes |
| 285 | // Purpose : |
| 286 | //======================================================================= |
| 287 | Handle(IMeshData::ListOfPnt2d) BRepMesh_NURBSRangeSplitter::GenerateSurfaceNodes( |
| 288 | const IMeshTools_Parameters& theParameters) const |
| 289 | { |
| 290 | initParameters(); |
| 291 | |
| 292 | const std::pair<Standard_Real, Standard_Real>& aRangeU = GetRangeU(); |
| 293 | const std::pair<Standard_Real, Standard_Real>& aRangeV = GetRangeV(); |
| 294 | const std::pair<Standard_Real, Standard_Real>& aDelta = GetDelta (); |
| 295 | |
| 296 | const Standard_Real aDefFace = GetDFace()->GetDeflection(); |
| 297 | const Handle(BRepAdaptor_HSurface)& gFace = GetSurface(); |
| 298 | Handle(Geom_Surface) aSurface = gFace->ChangeSurface().Surface().Surface(); |
| 299 | |
| 300 | const Handle(NCollection_IncAllocator) aTmpAlloc = |
| 301 | new NCollection_IncAllocator(IMeshData::MEMORY_BLOCK_SIZE_HUGE); |
| 302 | |
| 303 | const Handle(IMeshData::SequenceOfReal) aParams[2] = { |
| 304 | computeGrainAndFilterParameters(GetParametersU(), gFace->UResolution(aDefFace), |
| 305 | (aRangeU.second - aRangeU.first), aDelta.first, theParameters, aTmpAlloc), |
| 306 | |
| 307 | computeGrainAndFilterParameters(GetParametersV(), gFace->VResolution(aDefFace), |
| 308 | (aRangeV.second - aRangeV.first), aDelta.second, theParameters, aTmpAlloc) |
| 309 | }; |
| 310 | |
| 311 | // check intermediate isolines |
| 312 | Handle(IMeshData::MapOfReal) aFixedParams[2] = { |
| 313 | new IMeshData::MapOfReal(1, aTmpAlloc), |
| 314 | new IMeshData::MapOfReal(1, aTmpAlloc) |
| 315 | }; |
| 316 | |
| 317 | const Handle(IMeshData::MapOfReal) aParamsToRemove[2] = { |
| 318 | AnalyticalFilter(GetDFace(), GeomAbs_IsoV, aParams[1], aParams[0], |
| 319 | aFixedParams[1], aFixedParams[0]).GetControlParametersToRemove(theParameters), |
| 320 | |
| 321 | AnalyticalFilter(GetDFace(), GeomAbs_IsoU, aParams[0], aParams[1], |
| 322 | aFixedParams[0], aFixedParams[1]).GetControlParametersToRemove(theParameters), |
| 323 | }; |
| 324 | |
| 325 | aParamsToRemove[0]->Subtract(*aFixedParams[0]); |
| 326 | aParamsToRemove[1]->Subtract(*aFixedParams[1]); |
| 327 | |
| 328 | // insert nodes of the regular grid |
| 329 | Handle(IMeshData::ListOfPnt2d) aNodes = new IMeshData::ListOfPnt2d( |
| 330 | new NCollection_IncAllocator(IMeshData::MEMORY_BLOCK_SIZE_HUGE)); |
| 331 | |
| 332 | // insert nodes of the regular grid |
| 333 | for (Standard_Integer i = 1; i <= aParams[0]->Length(); ++i) |
| 334 | { |
| 335 | const Standard_Real aParam1 = aParams[0]->Value(i); |
| 336 | if (aParamsToRemove[0]->Contains(aParam1)) |
| 337 | { |
| 338 | continue; |
| 339 | } |
| 340 | |
| 341 | for (Standard_Integer j = 1; j <= aParams[1]->Length(); ++j) |
| 342 | { |
| 343 | const Standard_Real aParam2 = aParams[1]->Value(j); |
| 344 | if (aParamsToRemove[1]->Contains(aParam2)) |
| 345 | { |
| 346 | continue; |
| 347 | } |
| 348 | |
| 349 | aNodes->Append(gp_Pnt2d(aParam1, aParam2)); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | return aNodes; |
| 354 | } |
| 355 | |
| 356 | //======================================================================= |
| 357 | // Function: initParameters |
| 358 | // Purpose : |
| 359 | //======================================================================= |
| 360 | void BRepMesh_NURBSRangeSplitter::initParameters() const |
| 361 | { |
| 362 | const Handle(BRepAdaptor_HSurface)& aSurface = GetSurface(); |
| 363 | |
| 364 | const GeomAbs_Shape aContinuity = GeomAbs_CN; |
| 365 | const std::pair<Standard_Integer, Standard_Integer> aIntervalsNb( |
| 366 | aSurface->NbUIntervals(aContinuity), |
| 367 | aSurface->NbVIntervals(aContinuity) |
| 368 | ); |
| 369 | |
| 370 | TColStd_Array1OfReal aIntervals[2] = { |
| 371 | TColStd_Array1OfReal(1, aIntervalsNb.first + 1), |
| 372 | TColStd_Array1OfReal(1, aIntervalsNb.second + 1) |
| 373 | }; |
| 374 | |
| 375 | aSurface->UIntervals(aIntervals[0], aContinuity); |
| 376 | aSurface->VIntervals(aIntervals[1], aContinuity); |
| 377 | |
| 378 | Standard_Boolean isSplitIntervals = |
| 379 | (aIntervalsNb.first > 1 || aIntervalsNb.second > 1); |
| 380 | |
| 381 | if (!isSplitIntervals && |
| 382 | (aSurface->GetType() == GeomAbs_BezierSurface || |
| 383 | aSurface->GetType() == GeomAbs_BSplineSurface)) |
| 384 | { |
| 385 | isSplitIntervals = (aSurface->NbUPoles() > 2 && aSurface->NbVPoles() > 2); |
| 386 | } |
| 387 | |
| 388 | initParamsFromIntervals(aIntervals[0], GetRangeU(), isSplitIntervals, |
| 389 | const_cast<IMeshData::IMapOfReal&>(GetParametersU())); |
| 390 | |
| 391 | initParamsFromIntervals(aIntervals[1], GetRangeV(), isSplitIntervals, |
| 392 | const_cast<IMeshData::IMapOfReal&>(GetParametersV())); |
| 393 | } |
| 394 | |
| 395 | //======================================================================= |
| 396 | //function : computeGrainAndFilterParameters |
| 397 | //purpose : |
| 398 | //======================================================================= |
| 399 | Handle(IMeshData::SequenceOfReal) BRepMesh_NURBSRangeSplitter::computeGrainAndFilterParameters( |
| 400 | const IMeshData::IMapOfReal& theSourceParams, |
| 401 | const Standard_Real theTol2d, |
| 402 | const Standard_Real theRangeDiff, |
| 403 | const Standard_Real theDelta, |
| 404 | const IMeshTools_Parameters& theParameters, |
| 405 | const Handle(NCollection_IncAllocator)& theAllocator) const |
| 406 | { |
| 407 | // Sort and filter sequence of parameters |
| 408 | Standard_Real aMinDiff = Precision::PConfusion(); |
| 409 | if (theDelta < 1.) |
| 410 | { |
| 411 | aMinDiff /= theDelta; |
| 412 | } |
| 413 | |
| 414 | const Standard_Real aMinSize = |
| 415 | theParameters.MinSize > Precision::Confusion() ? theParameters.MinSize : |
| 416 | Max(IMeshTools_Parameters::RelMinSize() * theParameters.Deflection, |
| 417 | Precision::Confusion()); |
| 418 | |
| 419 | aMinDiff = Max(aMinSize, aMinDiff); |
| 420 | |
| 421 | const Standard_Real aDiffMaxLim = 0.1 * theRangeDiff; |
| 422 | const Standard_Real aDiffMinLim = Max(0.005 * theRangeDiff, 2. * theTol2d); |
| 423 | const Standard_Real aDiff = Max(aMinSize, Min(aDiffMaxLim, aDiffMinLim)); |
| 424 | return filterParameters(theSourceParams, aMinDiff, aDiff, theAllocator); |
| 425 | } |
| 426 | |
| 427 | //======================================================================= |
| 428 | //function : filterParameters |
| 429 | //purpose : |
| 430 | //======================================================================= |
| 431 | Handle(IMeshData::SequenceOfReal) BRepMesh_NURBSRangeSplitter::filterParameters( |
| 432 | const IMeshData::IMapOfReal& theParams, |
| 433 | const Standard_Real theMinDist, |
| 434 | const Standard_Real theFilterDist, |
| 435 | const Handle(NCollection_IncAllocator)& theAllocator) const |
| 436 | { |
| 437 | Handle(IMeshData::SequenceOfReal) aResult = new IMeshData::SequenceOfReal(theAllocator); |
| 438 | |
| 439 | // Sort sequence of parameters |
| 440 | const Standard_Integer anInitLen = theParams.Extent(); |
| 441 | |
| 442 | if (anInitLen < 1) |
| 443 | { |
| 444 | return aResult; |
| 445 | } |
| 446 | |
| 447 | TColStd_Array1OfReal aParamArray(1, anInitLen); |
| 448 | Standard_Integer j; |
| 449 | for (j = 1; j <= anInitLen; j++) |
| 450 | aParamArray(j) = theParams(j); |
| 451 | |
| 452 | std::sort(aParamArray.begin(), aParamArray.end()); |
| 453 | |
| 454 | // mandatory pre-filtering using the first (minimal) filter value |
| 455 | Standard_Integer aParamLength = 1; |
| 456 | for (j = 2; j <= anInitLen; j++) |
| 457 | { |
| 458 | if ((aParamArray(j) - aParamArray(aParamLength)) > theMinDist) |
| 459 | { |
| 460 | if (++aParamLength < j) |
| 461 | aParamArray(aParamLength) = aParamArray(j); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | //perform filtering on series |
| 466 | Standard_Real aLastAdded, aLastCandidate; |
| 467 | Standard_Boolean isCandidateDefined = Standard_False; |
| 468 | aLastAdded = aParamArray(1); |
| 469 | aLastCandidate = aLastAdded; |
| 470 | aResult->Append(aLastAdded); |
| 471 | |
| 472 | for (j = 2; j < aParamLength; j++) |
| 473 | { |
| 474 | Standard_Real aVal = aParamArray(j); |
| 475 | if (aVal - aLastAdded > theFilterDist) |
| 476 | { |
| 477 | //adds the parameter |
| 478 | if (isCandidateDefined) |
| 479 | { |
| 480 | aLastAdded = aLastCandidate; |
| 481 | isCandidateDefined = Standard_False; |
| 482 | j--; |
| 483 | } |
| 484 | else |
| 485 | { |
| 486 | aLastAdded = aVal; |
| 487 | } |
| 488 | aResult->Append(aLastAdded); |
| 489 | continue; |
| 490 | } |
| 491 | |
| 492 | aLastCandidate = aVal; |
| 493 | isCandidateDefined = Standard_True; |
| 494 | } |
| 495 | aResult->Append(aParamArray(aParamLength)); |
| 496 | |
| 497 | return aResult; |
| 498 | } |