1. Correct unification of circular edges: avoid trying to make an axis with null magnitude.
2. New method UnionPCurves: unify existing pcurves of chain instead of projecting the curve of unified edge onto surfaces
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.
Make the algorithm BRepOffsetAPI_NormalProjection use section operation instead of common to get the edge-result of projection to be in face restrictions.
Correct Boolean operation algorithm to produce correctly oriented result in the case of common between face and edge.
The algorithm ShapeUpgrade_UnifySameDomain has been patched to correctly gather same domain faces in a compound.
The TCL script snowflake.tcl has been corrected to get rid of dependence on the order of edges in the result of Boolean operation.
This patch turns off some not needed modes of fix in the called ShapeFix_Face algorithm.
It stores pcurves on planes in the edges to avoid repeated computation of the same pcurves many times (it is done only when SafeInputMode is false).
It avoids unnecessary replace/apply actions in the modification context.
It removes the code that makes decomposition of surface of the face on several faces.
The new command buildpcurvesonplane has been added, which builds and stores pcurves of edges on planar faces. This is useful for investigations how presence of pcurves on planes influence performance of algorithms.
Make drawing of dimension line in snowflake test independent on the order of vertices in the result.
'BRepTools_History' history was implemented for algorithm
'ShapeUpgrade_UnifySameDomain'.
The history of the changing of the initial shape was corrected to consider all
shapes created by the algorithm as modified shapes instead of generated ones.
The old history interface was replaced by the new one:
- to get the modified shapes use: History()->Modified();
- to check if the shapes has been deleted use: History()->IsRemoved().
- The option SafeInputMode has been added in the class ShapeUpgrade_UnifySameDomain. If it is set then the input shape is protected against modifications of any aspects of its sub-shapes. Default value is true.
- The option "-nosafe" has been added in draw command "unifysamedom". If it is not set the algorithm is run with SafeInputMode switched off.
- The methods "Modified" and "IsDeleted" have been added for history support in "ShapeUpgrade_UnifySameDomain" class.
- The new Draw commands "unifysamedommod" and "unifysamedomisdel" have been added.
- Adoption of other algorithms using this one to its new behavior.
Removing code duplication
Correcting regressions
Correcting remarks
- New methods SetLinearTolerance and SetAngularTolerance have been added in the class ShapeUpgrade_UnifySameDomain.
- The algorithm has been modified to consider these tolerances when checking if two faces are same domain.
- The draw command unifysamedomain has been changed to accept new parameters.
- The internal method MergeSeq has been changed to avoid exception connected with access to unknown key in the data map.
Create test case
Small correction of test case for issue CR27729
The new option AllowInternalEdges has been added in the class ShapeUpgrade_UnifySameDomain. It determines how the algorithm treats the situation when two faces can be merged together but they have connection with another face via the common edge.
With this option turned on, merging of such faces is not stopped, but the multiconnected edges are added to the merged face as INTERNAL edges.
By default it is false. In this mode such merging is forbidden, so the result shape will not contain any new INTERNAL edges.
The behavior of the algorithm has been changed so that it does not merge faces from different shells.
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack
