Commit Graph

22 Commits

Author SHA1 Message Date
Alessio Quaglino 4998e7b392 Move flex damping to the engine and remove membrane and solid plugins.
PiperOrigin-RevId: 676434954
Change-Id: I24e8dbaa90afcffd613a9cf106ef8b7262195328
2024-09-19 09:01:30 -07:00
Alessio Quaglino 31abd7900a Add edge ids to flex elements in mjModel.
PiperOrigin-RevId: 675130981
Change-Id: If2ccfb268142d235273b7a50e15740f6399903b2
2024-09-16 06:58:10 -07:00
Alessio Quaglino b15de2c951 Add elasticity parameters to the schema.
PiperOrigin-RevId: 675115200
Change-Id: Ic6608ce61cbb857dca71b3d9cbdac057e8f1ac7a
2024-09-16 05:56:36 -07:00
Alessio Quaglino 2da15cf137 Add flex elasticity stiffness matrix to mjModel.
PiperOrigin-RevId: 675101645
Change-Id: Ic169c108b9eece3657ea4ec211df357abe615b7e
2024-09-16 05:00:54 -07:00
Alessio Quaglino 4862b9e765 Remove plugin support from Composite particles.
This functionality is replaced by FlexComp.

PiperOrigin-RevId: 672503965
Change-Id: I58953267de285f82e416f9f60576a336b7d0da4c
2024-09-09 04:58:26 -07:00
Alessio Quaglino 63ec34f9f8 Add plugins to flex parent body if there are pinned vertices.
Fixes #1270.

PiperOrigin-RevId: 595429578
Change-Id: Ifc61d4bde4dd3c6b4d4a09106152de1d24e71ef0
2024-01-03 09:53:22 -08:00
Nimrod Gileadi f8c5ad2ba8 Check for errors when calling std::stod in XML loading.
PiperOrigin-RevId: 576608985
Change-Id: I148ca67d8960d73c281df2d6f2440d47940a6369
2023-10-25 12:26:43 -07:00
Alessio Quaglino d67b8c6251 Add membrane plugin (2D Flex elastic stiffness).
PiperOrigin-RevId: 574109411
Change-Id: I4a701d8189cecf540cd200bd30cb4582f3c7dd43
2023-10-17 04:55:33 -07:00
Alessio Quaglino 110ade1435 Update Solid and Shell plugins to use FlexComp.
PiperOrigin-RevId: 573755821
Change-Id: I3b8d7fb27f0e940038fa9fd2b26ecc746df4f7ac
2023-10-16 03:03:06 -07:00
Nimrod Gileadi cd06629a92 Give the test fixture a local name in elasticity_test.
PiperOrigin-RevId: 571900967
Change-Id: Ie9bfea00dff1f9068f7fb3bf426dcbf6bfd6b4d2
2023-10-09 04:35:00 -07:00
Alessio Quaglino dd5a7115cf Add shell plugin.
- Add bending passive force
- Add two examples (plate and poncho)
- Add stretching constraints for particles using tendons on mesh edges

PiperOrigin-RevId: 566980584
Change-Id: Id0cd8e1084c05560f1008518a8afbd5311d563e2
2023-09-20 09:00:20 -07:00
Alessio Quaglino 273c23038c MakeParticle and elasticity plugin refactoring.
- Removed the explicit dependency on a plugin name.
- Creation of particles from user-defined vertices (if a plugin is present).
- Add skin support for an irregular mesh
- Fixes #642 and #674.

PiperOrigin-RevId: 561313771
Change-Id: I450f91f0d3b578cc18d97ed7180a0a8944b7dd41
2023-08-30 05:40:27 -07:00
Alessio Quaglino fdb041580c Add Signed Distance Field to collision geometries.
PiperOrigin-RevId: 557507088
Change-Id: I358a642407aee1ba8dfc9d405eb9a4f609435fe9
2023-08-16 09:15:23 -07:00
Alessio Quaglino 46e06c4cac Add elasticity plugins to xml_native_writer_test. Fixes #961.
PiperOrigin-RevId: 545454207
Change-Id: I4e93499eaa53e5bc8c8afa682986657cef3ac20f
2023-07-04 08:30:30 -07:00
Saran Tunyasuvunakool db28c31f05 Rename <required> tag to <plugin>.
PiperOrigin-RevId: 509237786
Change-Id: I35e812830b479004ac5025cbd9477888f51fb43e
2023-02-13 08:41:52 -08:00
Alessio Quaglino b712e0757e Define kNumEdges and kNumVerts constants in Solid plugin.
PiperOrigin-RevId: 493587525
Change-Id: Ifa82211a4dfc3b288825b0961c48fc679aae204c
2022-12-07 06:30:40 -08:00
Alessio Quaglino d0b1a97338 Deformable solid plugin for particles.
Using coordinate-free formula equivalent to linear finite elements.

PiperOrigin-RevId: 491317615
Change-Id: I096b9a56075bbb630f64bfffac8a8d66457e5e2d
2022-11-28 05:32:30 -08:00
Alessio Quaglino 043ed273a7 Automated g4 rollback of changelist 489207765.
*** Reason for rollback ***

Corrected logic in CMake

*** Original change description ***

Automated g4 rollback of changelist 489183597.

*** Reason for rollback ***

GitHub path is different

*** Original change description ***

Activate plugin tests on Windows.

***

***

PiperOrigin-RevId: 489228199
Change-Id: Ic0ee9114e9680fc0aef9f668fc172c73fe74cd38
2022-11-17 09:15:40 -08:00
Alessio Quaglino 17c82e2f02 Automated g4 rollback of changelist 489183597.
*** Reason for rollback ***

GitHub path is different

*** Original change description ***

Activate plugin tests on Windows.

***

PiperOrigin-RevId: 489207765
Change-Id: If48dede94c8623b92526375a567edcd49c548e63
2022-11-17 07:38:49 -08:00
Alessio Quaglino a9781d9bea Activate plugin tests on Windows.
PiperOrigin-RevId: 489183597
Change-Id: I1e5212777514fbc5a246f02a4446a9dbb8a0dbd3
2022-11-17 05:06:00 -08:00
Alessio Quaglino 9833f912c1 Renamed Elasticity to Cable and libcable to libelasticity for consistency.
PiperOrigin-RevId: 485642970
Change-Id: I279df4233963a6e514459e55a9c2d36d975da92c
2022-11-02 11:08:44 -07:00
Alessio Quaglino e250ff0d5a - Added passive forces plugins
- Added new `cable` composite type:
  * The `initial` parameter specifies the joint at the starting boundary: `free`, `ball`, or `none`.
  * The boundary bodies are exposed with the names:`B_left` and `B_right`.
  * The vertex initial positions can be specified directly in the XML with the parameter `vertex`.
  * The orientation of the body frame **is** the orientation of the material frame of the curve.

- Added new `cable` passive force plugin:
  * Twist and bending stiffness can be set separately with the parameters `twist` and `bend`.
  * The stress-free configuration can be set to be the initial one or flat with the flag `flat`.
  * New cable example showing the formation of plectoneme.
  * New coil example.
  * New belt example showing interaction between twist and anisotropy.
  * Added test using cantilever exact solution.

PiperOrigin-RevId: 480033694
Change-Id: I491271bce8fccb185961477e903e5a72d172c8a3
2022-10-10 02:46:51 -07:00