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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*.
32 lines
977 B
Plaintext
32 lines
977 B
Plaintext
restore [locate_data_file bug29481_boxes.brep] s
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explode s f
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# remove the hole inside compsolid
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compound s_30 s_31 s_32 s_60 s_39 s_54 s_48 s_58 s_7 s_12 s_46 s_25 s_21 s_40 s_9 s_38 s_45 s_13 s_59 s_8 s_22 s_51 s_52 s_18 hole
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removefeatures result s hole
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checkshape result
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checkprops result -s 4800 -v 8000
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checknbshapes result -vertex 27 -edge 54 -wire 36 -face 36 -shell 8 -solid 8
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CheckIsFeatureRemoved hole {v e f}
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# check that the shape is still a compsolid
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if {![regexp "COMPSOLID" [whatis result]]} {
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puts "Error: the type of input shape is lost during feature removal"
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}
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# check that the sharing is kept
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if {![regexp "OK" [bopcheck result]]} {
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puts "Error: sharing is lost after feature removal"
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}
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# check modification of the solids
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foreach solid [explode s so] {
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rfmodified msol $solid
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checkprops msol -s 600 -v 1000
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checknbshapes msol -vertex 8 -edge 12 -wire 6 -face 6 -shell 1 -solid 1 -t
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bcommon com msol $solid
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checkprops com -equal $solid
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}
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