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| author | Sébastien Crozet <developer@crozet.re> | 2021-01-29 14:42:32 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-29 14:42:32 +0100 |
| commit | 7ca46f38cde6cf8bf8bf41ea6067ae5bc938205c (patch) | |
| tree | 3781b9d7c92a6a8111573ba4cae1c5d41435950e /src/dynamics/mass_properties_capsule.rs | |
| parent | e6fc8f67faf3e37afe38d683cbd930d457f289be (diff) | |
| parent | 825f33efaec4ce6a8903751e836a0ea9c466ff92 (diff) | |
| download | rapier-7ca46f38cde6cf8bf8bf41ea6067ae5bc938205c.tar.gz rapier-7ca46f38cde6cf8bf8bf41ea6067ae5bc938205c.tar.bz2 rapier-7ca46f38cde6cf8bf8bf41ea6067ae5bc938205c.zip | |
Merge pull request #79 from dimforge/split_geom
Move most of the geometric code to another crate.
Diffstat (limited to 'src/dynamics/mass_properties_capsule.rs')
| -rw-r--r-- | src/dynamics/mass_properties_capsule.rs | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/src/dynamics/mass_properties_capsule.rs b/src/dynamics/mass_properties_capsule.rs deleted file mode 100644 index 3b1b214..0000000 --- a/src/dynamics/mass_properties_capsule.rs +++ /dev/null @@ -1,39 +0,0 @@ -use crate::dynamics::MassProperties; -#[cfg(feature = "dim3")] -use crate::geometry::Capsule; -use crate::math::Point; - -impl MassProperties { - pub(crate) fn from_capsule(density: f32, a: Point<f32>, b: Point<f32>, radius: f32) -> Self { - let half_height = (b - a).norm() / 2.0; - let (cyl_vol, cyl_unit_i) = Self::cylinder_y_volume_unit_inertia(half_height, radius); - let (ball_vol, ball_unit_i) = Self::ball_volume_unit_angular_inertia(radius); - let cap_vol = cyl_vol + ball_vol; - let cap_mass = cap_vol * density; - let mut cap_unit_i = cyl_unit_i + ball_unit_i; - let local_com = na::center(&a, &b); - - #[cfg(feature = "dim2")] - { - let h = half_height * 2.0; - let extra = h * h * 0.5 + h * radius * 3.0 / 8.0; - cap_unit_i += extra; - Self::new(local_com, cap_mass, cap_unit_i * cap_mass) - } - - #[cfg(feature = "dim3")] - { - let h = half_height * 2.0; - let extra = h * h * 0.5 + h * radius * 3.0 / 8.0; - cap_unit_i.x += extra; - cap_unit_i.z += extra; - let local_frame = Capsule::new(a, b, radius).rotation_wrt_y(); - Self::with_principal_inertia_frame( - local_com, - cap_mass, - cap_unit_i * cap_mass, - local_frame, - ) - } - } -} |
