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0030145: Modeling Algorithms - Boolean Operations on open solids

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Provide possibility to perform Boolean operations on open solids.

Implementation of the new method *BOPAlgo_Builder::BuildBOP* performing the construction of the result shape for the given type of Boolean operation.
This approach does not rely on the splits of solid to be correct and looks for the faces with necessary state relatively opposite solids to build the result solid.
The call to this method is performed from BOP algorithm in case there were open solids in the arguments.

Implementation of the draw command *buildbop* performing a call to the method above.
This commit is contained in:
emv
2018-09-07 15:24:49 +03:00
committed by bugmaster
parent 60b1a085c7
commit 13c0e40223
35 changed files with 1686 additions and 446 deletions
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dox/user_guides/draw_test_harness/draw_test_harness.md
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@@ -8370,6 +8370,62 @@ bfillds
bsplit result
~~~~
@subsubsection occt_draw_bop_build_BOP_opensolids Alternative command for BOP
There is an alternative way to build the result of Boolean operation using the **buildbop** command, which should be run after any other building command, such as **bbuild** or **bbop** or **bsplit**.
The command has the following features:
* It is designed to work on open solids and thus uses the alternative approach for building the results (see @ref occt_algorithms_bop_on_opensolids "BOP on open solids" chapter of Boolean operations user guide).
* It allows changing the groups of Objects and Tools of the operation (even excluding some of the arguments is possible).
* History information for solids will be lost.
Syntax:
~~~~
buildbop result -o s1 [s2 ...] -t s3 [s4 ...] -op operation (common/fuse/cut/tuc)
Where:
result - result shape of the operation
s1 s2 s3 s4 - arguments (solids) of the GF operation
operation - type of boolean operation
~~~~
**Example**
~~~~
box b1 10 10 10
box b2 5 5 5 10 10 10
box b3 -5 -5 -5 10 10 10
bclearobjects
bcleartools
baddobjects b1 b2 b3
bfillds
bbuild r
# bbop command will not be available as the tools are not set
# but buildbop is available
# fuse of two
buildbop r1 -o b1 -t b2 -op fuse
buildbop r2 -o b2 -t b3 -op fuse
# fuse of all - it does not matter how the groups are formed
buildbop r3 -o b1 b2 -t b3 -op fuse
buildbop r4 -o b2 -t b1 b3 -op fuse
buildbop r5 -o b1 b2 b3 -op fuse
buildbop r6 -t b1 b2 b3 -op fuse
# common of two
buildbop r7 -o b2 -t b1 -op common
buildbop r8 -o b1 -t b3 -op common
# common
buildbop r9 -o b1 -t b2 b3 -op common
# cut
buildbop r10 -o b1 -t b2 b3 -op cut
# opposite cut
buildbop r11 -o b1 -t b2 b3 -op tuc
~~~~
@subsubsection occt_draw_bop_build_CB Cells Builder
See the @ref occt_algorithms_10c_Cells_1 "Cells Builder Usage" for the Draw usage of Cells Builder algorithm.