The following improvements have been introduced in Boolean Operations algorithm s:
1. UBTree is replaced with EBTree in Boolean operations to be able to add/remove elements into the tree of bounding boxes.
2. Repeated (nested) intersection of sub-shapes is performed with argument vertices whose tolerances increased during the operation.
3. The algorithms of Edge/Edge and Edge/Face intersection have been improved for the cases when the intersection point is located close to the edge boundaries .
4. New procedure has been implemented to ensure forced creation of Edge/Face common blocks in cases when the edge is really close to the face.
5. Post-processing of Face/Face intersection results has been improved.
6. Extension of the planar faces for Plane/Plane intersection is avoided.
7. Builder Face now better classifies potentially internal edges relatively to new faces with filtering by bounding boxes.
Side effect changes:
1. IntTools_ShrunkRange now keeps the length of the valid range of the edge.
2. The method BOPDS_DS::UpdateEdgeTolerance() has been removed as unused (replaced by the BOPAlgo_PaveFiller::UpdateEdgeTolerance()).
Test case for the issue 0029900.
Test case for the issue 0029711.
Adjustments of the existing test cases.
Avoid using uninitialized variables.
Implementation of the 3D model De-featuring algorithm intended for the removal of the unwanted parts (or features) from the model consisting of solids. The features can be the holes, protrusions, gaps, chamfers, fillets etc.
The algorithm removes all possible requested features from the shape and builds the new shape as a result. The input model is not modified.
On the API level the algorithm is implemented in the class *BRepAlgoAPI_Defeaturing*. The actual features removal is performed by the low-level algorithm *BOPAlgo_RemoveFeatures*.
Documentation of the new classes.
Implementation of the DRAW commands for working with new algorithm.
Test cases for the new functionality.
Changes in other algorithms used by De-featuring algorithm:
- Provide history support for the solids in *ShapeUpgrade_UnifySameDomain* algorithm;
- Implementation of the mechanism to merge History of any Algorithm with standard history methods such as IsDeleted(), Modified() and Generated() into *BRepTools_History*.
1. Implementation of the user-defined option for usage of Oriented Bounding Boxes (OBB) in Boolean Operations for additional filtering (rejection) of selected for intersection pairs of sub-shapes.
By default the usage of OBB is turned off.
To enable/disable its usage the method SetUseOBB(flag) should be used. This method is available for all operations in Boolean Component.
To enable/disable it in draw the command "buseobb 0/1" should be used. Note, that this will affect all subsequent operations.
The OBB for the shapes are built by first necessity and stored into operation context (IntTools_Context).
2. Usage of the OBB in some test cases.
1. The package BOPCol has been fully removed:
- *BOPCol_BaseAllocator* is replaced with *Handle(NCollection_BaseAllocator)*;
- *BOPCol_BoxBndTree* is replaced with *BOPTools_BoxBndTree*;
- *BOPCol_Box2DBndTree* is removed as unused;
- *BOPCol_DataMapOfIntegerInteger* is replaced with *TColStd_DataMapOfIntegerInteger*;
- *BOPCol_DataMapOfIntegerListOfInteger* is replaced with *TColStd_DataMapOfIntegerListOfInteger*;
- *BOPCol_DataMapOfIntegerListOfShape* is replaced with *TopTools_DataMapOfIntegerListOfShape*;
- *BOPCol_DataMapOfIntegerMapOfInteger.hxx* is removed as unused;
- *BOPCol_DataMapOfIntegerReal* is replaced with *TColStd_DataMapOfIntegerReal*;
- *BOPCol_DataMapOfIntegerShape* is replaced with *TopTools_DataMapOfIntegerShape*;
- *BOPCol_DataMapOfShapeBox* is replaced with *TopTools_DataMapOfShapeBox*;
- *BOPCol_DataMapOfShapeInteger* is replaced with *TopTools_DataMapOfShapeInteger*;
- *BOPCol_DataMapOfShapeListOfShape* is replaced with *TopTools_DataMapOfShapeListOfShape*;
- *BOPCol_DataMapOfShapeReal* is replaced with *TopTools_DataMapOfShapeReal*;
- *BOPCol_DataMapOfShapeShape* is replaced with *TopTools_DataMapOfShapeShape*;
- *BOPCol_DataMapOfTransientAddress* is removed as unused;
- *BOPCol_IndexedDataMapOfIntegerListOfInteger* is removed as unused;
- *BOPCol_IndexedDataMapOfShapeBox* is removed as unused;
- *BOPCol_IndexedDataMapOfShapeInteger* is removed as unused;
- *BOPCol_IndexedDataMapOfShapeListOfShape* is replaced with *TopTools_IndexedDataMapOfShapeListOfShape*;
- *BOPCol_IndexedDataMapOfShapeReal* is removed as unused;
- *BOPCol_IndexedDataMapOfShapeShape* is replaced with *TopTools_IndexedDataMapOfShapeShape*;
- *BOPCol_IndexedMapOfInteger* is replaced with *TColStd_IndexedMapOfInteger*;
- *BOPCol_IndexedMapOfOrientedShape* is replaced with *TopTools_IndexedMapOfOrientedShape*;
- *BOPCol_IndexedMapOfShape* is replaced with *TopTools_IndexedMapOfShape*;
- *BOPCol_ListOfInteger* is replaced with *TColStd_ListOfInteger*;
- *BOPCol_ListOfListOfShape* is replaced with *TopTools_ListOfListOfShape*;
- *BOPCol_ListOfShape* is replaced with *TopTools_ListOfShape*;
- *BOPCol_MapOfInteger* is replaced with *TColStd_MapOfInteger*;
- *BOPCol_MapOfOrientedShape* is replaced with *TopTools_MapOfOrientedShape*;
- *BOPCol_MapOfShape* is replaced with *TopTools_MapOfShape*;
- *BOPCol_PListOfInteger* is removed as unused;
- *BOPCol_PInteger* is removed as unused
- *BOPCol_SequenceOfPnt2d* is replaced with *TColgp_SequenceOfPnt2d*;
- *BOPCol_SequenceOfReal* is replaced with *TColStd_SequenceOfReal*;
- *BOPCol_SequenceOfShape* is replaced with *TopTools_SequenceOfShape*;
- *BOPCol_Parallel* is replaced with *BOPTools_Parallel*;
- *BOPCol_NCVector* is replaced with *NCollection_Vector*;
2. The class *BOPDS_PassKey* and containers for it have been removed as unused;
3. The unused containers from *IntTools* package have been removed:
- *IntTools_DataMapOfShapeAddress* is removed as unused;
- *IntTools_IndexedDataMapOfTransientAddress* is removed as unused;
4. The container *BiTgte_DataMapOfShapeBox* is replaced with *TopTools_DataMapOfShapeBox*;
5. The class *BOPTools* has been removed as duplicate of the class *TopExp*;
0. Basic tools for defining classes representing alerts (errors, warnings etc.) and collecting them during execution of algorithms are added in Message package.
1. Refactoring of the Error/Warning reporting system of the algorithms in Boolean Component.
To dump the description of the Error/Warning status of the algorithm the DumpErrors/DumpWarnings method should be called.
Also, the methods GerErrorMsg(int Error) and GetWarningMsg(int Warning) have been implemented to get the description for the given Error/Warning.
All Error/Warning statuses are now listed in the enumeration ErrorStatusEnum/WarningStatusEnum of the algorithm.
It is also possible to get the shapes for which the warning has been set by using the method GetWarningShapes().
2. The new class BOPAlgo_Options has been created to unify the options of the BOPAlgo_* and BRepAlgoAPI* algorithms.
3. The new checks across the algorithms have been added to detect and report errors and warnings.
4. Test cases
boolean bopcut_complex B9 E1 E5 E8
boolean bopfuse_complex B4 B5 C9 D1 D4 D5 D6 D7
have been rewritten to use Cells Builder algorithm instead of Boolean Operations algorithm, because latter always returns error "Unsupported Boolean operation" for these cases.
5. New chapter has been added in the user guide for Boolean Operations - Error / Warning reporting system.
6. Added comment to NCollection_List::Remove(Iterator&)
1. The methods PerformVZ, PerformEZ, PerformFZ and PerformZZ have been transferred from BOPAlgo_PaveFiller to BOPAlgo_CheckerSI class
to perform intersection of sub-shapes with solids only in self-intersection mode.
2. The checks for solids built from the same (shared) faces have been added into methods building the result of Boolean operations -
BOPAlgo_BOP::BuildRC() and BOPAlgo_BOP::BuildSolid().
3. Since the NonDestructive mode is now natively supported by the BOPAlgo_PaveFiller the methods providing the support of this mode by CheckerSI
(BOPAlgo_CheckerSI::PrepareCopy() and BOPAlgo_CheckerSI::PostTreatCopy()) are not needed and have been removed.
4. The pairs of sub-shapes with interfering bounding boxes are now sorted before real intersection to guarantee the constant order of
intersection of sub-shapes and produce more stable result. The class BOPDS_PassKey has been replaced with simpler class BOPDS_Pair.
5. The class BOPDS_SubIterator has been refactored.
6. Test cases for the issue.
7. Adjustment of the test case boolean volumemaker D2.
Several improvements have been made in BO code to fix the bug:
- Create empty edge-edge interference if intersection is close to an end vertex. This will help to avoid creation of unnecessary edge-face intersections.
- Improve PutPaveOnCurve() method to join nearly located vertices when they are put on the same section curve.
- Add processing of same-domain vertices for section edges in UpdatePaveBlocks() method.
- Improve the method CorrectWires() in order to not increase vertex tolerance if it will cover the major part of an edge.
- Replace vertices of section edges by same-domain equivalents.
- In the algorithm BOPAlgo_WireSplitter, correct angles computation and evaluation, taking into account periodicity.
- Modify PostTreatFF to properly take into account the orientations of coinciding section edges.
- In IntTools_Context::ComputePE, check distance from the point to vertices of the edge if the projection to the curve is failure.
Tests update:
- test offset\faces_type_i\C9 has been updated; now instead of returning bad shape it returns null result.
Notes for porting:
- Modify BopAlgo_PaveFiller so that on output each interference refers to the new vertex that will hit in the result (same-domain of the initial new vertex).
- Make the method BOPDS_DS::Index() returning valid index for new shapes.
// eliminate compile warning on VC14
The commands to debug BOA.
These commands should serve only debug purposes and should not be used in tests.
Removing old implementation of the duplicated bopnews command.
