SelfweightCalculator

class compas_fd.loads.SelfweightCalculator

Bases: object

Class for computing the selfweight of a mesh representing a surface structure with a specific density and thickness.

After construction, the calculator provides a callable that can be used to compute the selfweight for the current mesh coordinates.

Parameters:

meshcompas.datastructures.Mesh

The mesh representing a surface structure.

densityfloat, optional

The density of the surface material.

thickness_attr_namestr, optional

The name of the vertex attribute storing the surface thickness.

Examples

>>> from compas.datastructures import Mesh
>>> from compas_fd.loads import SelfWeightCalculator
>>> mesh = Mesh.from_meshgrid(dx=10, nx=10)
>>> mesh.update_default_vertex_attributes(t=0.10)
>>> density = 22
>>> calculator = SelfweightCalculator(mesh, density=density)
>>> xyz = mesh.vertices_attributes("xyz")
>>> selfweight = calculator(xyz)
>>> len(selfweight) == mesh.number_of_vertices()
True
>>> selfweight[0] == 0.25 * density
True

Methods

compute_face_matrix	Compute the face matrix of the mesh.
compute_tributary_areas	Compute the tributary are of every vertex for the current coordinates.