View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0011664 | Open CASCADE | OCCT:Foundation Classes | public | 2006-02-16 19:49 | 2012-01-13 16:18 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | feature | ||
| Status | closed | Resolution | fixed | ||
| OS | All | ||||
| Fixed in Version | 6.1.1 | ||||
| Summary | 0011664: New optimized bounding box types | ||||
| Description | In package Bnd there should be available optimized bounding boxes with the features: - New bounding boxes should be finite (limited in all 6 directions). This would allow to use the symmetry of such box for faster calculations. For instance, for box-plane intersection it will be enough to check the intersection with only 1 diagonal, not 4 diagonals as in Bnd_Box class. - Boxes based on single precision numbers should be available, to save the memory in algorithms that allocate big number of boxes. | ||||
| Additional information and documentation updates | Documentation remark, added by AGV 2006-04-21 11:48:45: New features: Four new classes added to the package Bnd, with the aim to use them in performance-critical algorithms - Bnd_B2d: 2-dimensional box using double-precision floating point - Bnd_B3d: 3-dimensional box using double-precision floating point - Bnd_B2f: 2-dimensional box using single-precision floating point - Bnd_B3f: 3-dimensional box using single-precision floating point These boxes have the following differences from Bnd_Box and Bnd_Box2d: 1. New boxes are always limited, this improves the performance of some algorithms 2. All these new types take smaller memory, particularly when single-precision boxes are used. 3. In line-3dbox intersection (Bnd_B3x::IsOut(theLine)) there is now the 2nd parameter telling if the line is treated as a ray; this improvement is aimed primarily to aid in 3D visual selection. The new box types are compatible with NCollection_UBTree, they can be used to instantiate AABB-trees just like Bnd_Box and Bnd_Box2d. Modified entities: Bnd package | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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2006-02-16 17:49
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Bnd_Bxx.tar.gz (8,529 bytes) |
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2006-03-12 22:40
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Bnd_Bxx_v1.tgz (8,478 bytes) |
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2006-03-12 22:49
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Bnd_Bxx.README.gz (523 bytes) |
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2006-03-12 22:50
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TestBnd.cxx.gz (1,683 bytes) |
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2006-04-21 11:36
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Bnd_Bxx_v2.tar.gz (8,975 bytes) |
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2006-04-21 11:55
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OCC11664_gp_optional.tar.gz (950 bytes) |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2006-04-07 09:53 | bugmaster | CC | => imv |
| 2006-04-07 09:53 | bugmaster | Assigned To | bugmaster => agv |
| 2006-04-07 09:53 | bugmaster | Status | new => assigned |
| 2006-04-21 13:58 |
|
Status | assigned => resolved |
| 2006-04-21 17:20 |
|
BugsThisDependsOn | => 12251 |
| 2006-06-27 16:46 | bugmaster | Status | resolved => verified |
| 2007-01-12 14:00 | bugmaster | Status | verified => closed |
| 2007-01-12 14:00 | bugmaster | Resolution | @0@ => fixed |
| 2011-08-02 11:23 | bugmaster | Category | OCCT:FDC => OCCT:Foundation Classes |
| 2012-01-13 16:18 |
|
Description Updated | |
| 2012-01-13 16:18 |
|
Additional Information Updated |
