Geometries
ContactGeometry
A concept valid for both 2D and 3D physics, also 1D physics where the only type is a line geometry of variable length and position. A ContactGeometry owns one Material attribute, which define the internal material properties of the geometry.
Material
Material defines properties of a homogenous isotropic material. Note that for defining the interaction at contact between two contact geometries a SurfaceContact.Model has to be declared given two materials.
The materials defined with OpenPLX Physics are const, meaning that once they are defined, their internal properties are not possible to update from elsewhere.
| property | description | unit |
|---|---|---|
| density | Mass per length unit to the power of the physics dimension | 1D - [kg / m], 2D - [kg / m^2], 3D - [kg / m^3] |
| youngs_modulus | Compressive stiffness | [N / m^2] |
These properties are clearly not enough to define a real material that can flex or break. Expect future types, such as ElastoPlasticMaterial or ViscousMaterial.
To learn how to use materials, see
