New algorithms calculating global properties on mesh data have been added:
- BRepGProp_MeshCinert computes the global properties of polylines represented by a set of points;
- BRepGProp_MeshProps computes the global properties of a surface mesh.
Existing tool BRepGProp now automatically uses new algorithm for triangulation-only faces.
By default, algorithm will use exact geometry objects (surfaces), when it is available (as before the patch);
this behavior can be switched by a new flag UseTriangulation, forcing usage of triangulation instead of exact geometry when both defined.
Image_Color - removed semibroken summ/difference operators.
Image_Diff now uses signed integer for computing differnce between ubyte3 components;
properly compare squared tolerance.
Image_Diff - dropped declaration of Image_ColorXXX24.
RGB color difference is now computed using Chebyshev distance instead of Euclidean distance
Image_PixMap - added methods RawValue()/ChangeRawValue() returning a pointer
to image where specified pixel data is defined.
Methods of NCollection_Vec3 and NCollection_Vec3 that returned reference to internal buffer as vector of lower dimension (non-const xy(), xyz() etc.) are eliminated.
Use of these methods could led to generation of incorrect binary code by GCC.
Instead added new method SetValues() accepting vector of lower dimension and additional value.
DRAW test command QANColTestVec4 reproducing one situation where the bug occurs is added, along with a test case.
TopoDS_Shape::NbChildren() - new method has been introduced.
TopoDS_Shape.lxx, TopoDS_TShape.lxx - inline methods have been moved to hxx.
TopoDS_TShape_Flags has been redeclared as enumeration instead of preprocessor macros.
Cyclic dependency between headers TopoDS_Shape.hxx and TopoDS_TShape.hxx eliminated.
Places where TopoDS_Iterator is used only for calculation of number of sub-shapes are updated to use NbChildren() instead
Modified method: Approx_ComputeLine::Compute
Check of multicurve is now always unconditional, the procedure of check is modified to avoid infinite loops.
Modified classes: GeomLib_CheckBSplineCurve and GeomLib_Check2dBSplineCurve
Correction of poles at the ends of curve is modified to fit the direction of tangent defined by two first points or two last points of walking line.
Also modified:
BOPAlgo_PaveFiller: modified methods PostTreatFF, RemoveUsedVertices - now unused vertices are included in the list of vertices to be absorbed by other ones.
Improve FindSubShape method in ShapeTool.
Update Expand compounds, according to changes in ShapeTool.
Add FindSubShape and AddSubShape commands for Draw.
Implementation of the method for simplification of the result of Boolean Operation on the API level.
The method BRepAlgoAPI_BuilderAlgo::SimplifyResult has been added, so the derived classes such as BooleanOpeation and Splitter can also use this method.
The result shape simplification should be called after the operation is done. The simplification is performed by the means of ShapeUpgrade_UnifySameDomain algorithm.
Draw command "bsimplify" has been added to control the simplification options.
Documentation for new functionality and draw commands controlling the options of Boolean operations.
Test cases for the new functionality.
Side-effect change:
The algorithms in Boolean component have been changed to use the BRepTools_History as a History tool.
Now it became possible to disable the collection of shapes modifications during Boolean Operations, which may be useful for performance sake (in draw the option is controlled by *setfillhistory* command).
Draw command "unifysamedom" has been changed to accept the angular tolerance in degrees instead of radians.
The reason of this issue is in incorrectly interpreted the generic class "TheExtPC" (eliminated after the fix 0024773) as Extrema_ExtPC2d. Correct interpretation must be "Extrema_EPCOfExtPC2d" class.
Now this problem has been fixed in the class Geom2dGcc_Circ2dTanCenGeo.
New testgrid "lowalgos 2dgcc" has been created.
1. Extrema algorithm calls Curve-surface intersector. This intersector returns flag about infinite solution (in spite of extrema's returning not-parallel status correctly - axes of considered cylinder and circle are not parallel). In this case, attempt of obtaining number of intersection points leads to exception.
So, the fix adds check of infinite solution after the intersection algorithm.
2. The methods IsDone(), IsParallel(), NbExt(), SquareDistance() and Points() (of Extrema_* classes) have been corrected to make them consistent to the documentation.
3. Revision of some Extrema_* classes has been made in order to avoid places with uninitialized variables.
4. Currently Extrema does not store any points in case when the arguments are parallel. It stores the distance only.
5. Some cases on Extrema-algo have been moved from "fclasses"-group to "modalg"-group.
Make the methods Append, Prepend, InsertBefore and InsertAfter, which take another sequence as an argument, copying the sequence instead of joining if the allocators are different.
Add test cases for collection classes.
1. Sphere is not V-periodic surface. See the section "Periodicity concept" written in frame of the fix 0029115. Therefore, applying ElCLib::AdjustPeriodic(...) method is unreasonable.
2. Default U work range of sphere is 0 ... 2*PI. Therefore, adjusting U parameter in range -PI/2 ... +PI/2 is unreasonable.
Substitution of degenerated edges by their copies is implemented to make edges not shared
in BRepPrimAPI_MakeRevol::Build().
Method BRepPrimAPI_MakeRevol::Generated(...) is changed in order to use history of substitutions.
Test case is added.
The Message_ProgressIndicator handle is added as a parameter to the function LU_Decompose and the the member functions of math_Gauss, Plate_Plate and GeomPlate_BuildPlateSurface classes.
Graphic3d_ClipPlane now can define a Chain of Planes (logical AND).
OpenGl_ShaderManager - added new GLSL sub-programs for clipping plane chains.
Bnd_Range::TrimFrom(), ::TrimTo() - added auxiliary methods for trimming the range.
SelectMgr_ViewClipRange now handles non-continuous clipping range.
Graphic3d_SequenceOfHClipPlane now aggregates NCollection_Sequence instead of inheritance.
OpenGl_CappingPlaneResource - triangulation has been adjusted to make front face following CCW order.
Added protection against clash of attributes with the same GUID when more than one attribute of the same type but with different GUIDs are stored in the file.
If attribute with default GUID has already been read, then adding next empty attribute of the same type (done at start of its reading) will fail; in such case another attempt is made with Null GUID.
- XCAFNoteObjects_NoteObject transfer object for note's auxiliary data was added. It contains the following fields:
text and attachment positions, note plane and tesselated presentation
- GetObject/SetObject methods were added to XCAFDoc_Note attribute. The following sub-labels were added to handle transfer object:
1 - text position
2 - note plane
3 - attachment point
4 - tesselated presentation
- documentation updated
Off-topic: procedure genproj now gives meaningful error message if new package is added but not listed in UDLIST
In the method STEPCAFControl_Reader::ExpandShell protection for case when entity ""Connected_Face_Set" contains not only "FACE" entities ( for example "VERTEX_POINT" entities) was added.
OpenGl_Structure::Render(), added missing check for disabled state of the plane.
vclipplane command has been extended with new option -setOverrideGlobal.
The API classes in the package BRepAlgo providing access to old Boolean operations (Fuse, Common, Cut, Section) are marked as deprecated.
Corresponding classes from the package BRepAlgoAPI should be used instead.
Introduced new method AIS_InteractiveContext::ClearDetected() allowing
to reset the list of detected objects and clear dynamically highlighted
entity under mouse cursor after previous AIS_InteractiveContext::MoveTo().
vmoveto command has been extended with new argument -reset.
- TNaming_UsedShapes is corrected to do not call methods of empty TopoDS_Shape
- TNaming_NamedShape is corrected to have not NULL TNaming_RefShape even if TopoDS_Shape is NULL(TNaming_Builder::Delete).
- DFBrowserPane presentation tree item for this is corrected in the same way and obsolete methods of processing SortedReferences are removed.
The method *BRepTools::UpdateFaceUVPoints* has been modified to resets the UV points of the edge to the bounding points of the parametric curve of the edge on the face.
Test cases for the issue.
Adjust test cases heal split_angle_advanced ZC3, ZE6, ZE9 for current behavior as they show less faulty shapes now.
Adjust test case bugs modalg_6 bug21246 as it works correctly now.
When checking if the split edge is oriented as the original one (BOPTools_AlgoTools::IsSplitToReverse()) the tangent vectors should be computed for both edges at the same point. This point is taken on the split edge and projected on the original edge.
The fix is intended to ensuring that the reference point will be taken inside the valid range of the split edge (i.e. not covered by the tolerance spheres of its bounding vertices) and the projection of this point on the original edge will be successful. Moreover, several sampling points are now taken on the split edge and processed until first valid point is found.
If requested (by a not null pointer) all *BOPTools_AlgoTools::IsSplitToReverse()* methods are now return the error status of the check. Before using the returned flag, the calling program should check this error status. For successful check the error status should be equal to zero.
New warning *BOPAlgo_AlertUnableToOrientTheShape* is now returned in the algorithms in Boolean component in case the check for correct shape orientation failed.
Test case for the issue.
Avoid splitting of wrong edge in ShapeFix_IntersectionTool.
Added protection for case when index of edge to be split is out of range.
Added test bugs heal bug29695
Implementation of the mechanism for unification of the history commands for all OCCT algorithms.
The following Draw commands should be used to track the history of shapes modifications of any operation:
- modified - to find the shapes modified from the given shape in the given history.
- generated - to find the shapes generated from the given shape in the given history.
- isdeleted - to check if the given shape has been deleted during operation.
The mechanism allows fast & easy enabling of the DRAW history support for the algorithms supporting the history on the API level (i.e. the algorithm should have the methods Modified(), Generated() and IsDeleted()).
To enable the draw history support it is necessary to store the history of the algorithm into the session. For instance:
TopTools_ListOfShape Objects = ...; // Objects
TopTools_ListOfShape Tools = ...; // Tools
BRepAlgoAPI_Cut aCut(Objects, Tools); // Boolean cut operation
BRepTest_Objects::SetHistory(Objects, aCut); // Store the history for the Objects (overwrites the history in the session)
BRepTest_Objects::AddHistory(Tools, aCut); // Add the history for the Tools
To get the stored history in draw the command "savehistory" should be used. It saves the history kept in session into a Drawable object with the given name:
# perform cut
bcut r s1 s2
# save history of cut
savehistory cut_history
explode s1 f
modified m cut_history s1_1
The Draw History commands of the following algorithms have been removed:
- Boolean Operations;
- Defeaturing;
- Unify same domain;
- Sweep;
- Thrusections;
All these algorithms have been switched to support the new Draw history mechanism.
The Fillet and Blend algorithms have been also enabled to support history commands.
Boolean Operations - when splitting the face by the intersections with other arguments check if the face (e.g. really thin one) can be split by a vertex. In this case avoid simple face reconstruction and use the BuilderFace algorithm to split the face.
Test case for the issue.
