def from_json(cls, filepath):
"""Construct an assembly from the data contained in a JSON file.
Parameters
----------
filepath : str
Path to the file containing the data.
Returns
-------
Assembly
An assembly data structure.
Examples
--------
.. code-block:: python
assembly = Assembly.from_json('assembly.json')
"""
from compas_assembly.datastructures import Block
with open(filepath, 'r') as fo:
data = json.load(fo)
# vertex keys in an assembly can be of any hashable type
# keys in the blocks dict should be treated the same way!
assembly = cls.from_data(data['assembly'])
assembly.blocks = {
int(key): Block.from_data(data['blocks'][key])
for key in data['blocks']
}
return assembly
def assembly_interfaces_xfunc(data, **kwargs):
"""Convenience wrapper for ``assembly_interfaces_numpy`` that can be used with ``XFunc`` or ``RPC``.
Parameters
----------
data : dict
The data dictionary representing an assembly data structure.
The dict has the following items:
* assembly: the assembly data
* blocks: the data per block
Returns
-------
dict
A data dict with the same structure as the input dict.
Notes
-----
For additional named parameters that can be passed to this function,
see ``assembly_interfaces_numpy``.
Examples
--------
.. code-block:: python
assembly_interfaces_xfunc = XFunc('compas_assembly.datastructures.assembly_interfaces_xfunc')
data = {'assembly': assembly.to_data(),
'blocks': {str(key): assembly.blocks[key].to_data() for key in assembly.vertices()}}
result = assembly_interfaces_xfunc(data)
assembly.data = result['assembly']
assembly.blocks = {int(key): Block.from_data(data) for key, data in result['blocks']}
"""
from compas_assembly.datastructures import Assembly
from compas_assembly.datastructures import Block
assembly = Assembly.from_data(data['assembly'])
assembly.blocks = {
int(key): Block.from_data(data['blocks'][key])
for key in data['blocks']
}
assembly_interfaces_numpy(assembly, **kwargs)
return {
'assembly': assembly.to_data(),
'blocks':
{str(key): assembly.blocks[key].to_data()
for key in assembly.blocks}
}
def compute_interface_forces_xfunc(data, backend='cvx', **kwargs):
from compas_assembly.datastructures import Assembly
from compas_assembly.datastructures import Block
assembly = Assembly.from_data(data['assembly'])
assembly.blocks = {
int(key): Block.from_data(data['blocks'][key])
for key in data['blocks']
}
if backend == 'cvx':
compute_interface_forces_cvx(assembly, **kwargs)
if backend == 'cvxopt':
compute_interface_forces_cvxopt(assembly, **kwargs)
return {
'assembly': assembly.to_data(),
'blocks':
{str(key): assembly.blocks[key].to_data()
for key in assembly.blocks}
}
def from_json(cls, filepath):
"""Construct an assembly from the data contained in a JSON file.
Parameters
----------
filepath : str
Path to the file containing the data.
Returns
-------
Assembly
An assembly data structure.
Examples
--------
>>>
"""
from compas_assembly.datastructures import Block
with open(filepath, 'r') as fo:
data = json.load(fo)
assembly = cls.from_data(data['assembly'])
assembly.blocks = {int(key): Block.from_data(data['blocks'][key]) for key in data['blocks']}
return assembly
assembly.node_attribute(0, 'is_support', True)
# ==============================================================================
# Identify the interfaces
# ==============================================================================
proxy.package = 'compas_assembly.datastructures'
data = {
'assembly': assembly.to_data(),
'blocks': {str(key): assembly.blocks[key].to_data() for key in assembly.blocks}}
data = proxy.assembly_interfaces_xfunc(data, tmax=0.02)
assembly.data = data['assembly']
assembly.blocks = {int(key): Block.from_data(data['blocks'][key]) for key in data['blocks']}
# ==============================================================================
# Compute interface forces
# ==============================================================================
proxy.package = 'compas_rbe.equilibrium'
data = {
'assembly': assembly.to_data(),
'blocks': {str(key): assembly.blocks[key].to_data() for key in assembly.blocks}}
data = proxy.compute_interface_forces_xfunc(data, backend='CVX', solver='CPLEX')
assembly.data = data['assembly']
assembly.blocks = {int(key): Block.from_data(data['blocks'][key]) for key in data['blocks']}
proxy.package = 'compas_rbe.equilibrium'
data = {
'assembly': assembly.to_data(),
'blocks':
{str(key): assembly.blocks[key].to_data()
for key in assembly.blocks}
}
data = proxy.compute_interface_forces_xfunc(data,
backend='CVX',
solver='CPLEX')
assembly.data = data['assembly']
assembly.blocks = {
int(key): Block.from_data(data['blocks'][key])
for key in data['blocks']
}
# ==============================================================================
# Visualize
# ==============================================================================
artist = AssemblyArtist(assembly, layer="Arch")
artist.clear_layer()
artist.draw_blocks()
# artist.draw_edges()
artist.draw_nodes(color={
key: (255, 0, 0)
for key in assembly.nodes_where({'is_support': True})
})
