business.gravity.trunking package¶
Submodules¶
business.gravity.trunking.setters module¶
Provide mutators for the TrunkDesign
.
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class
business.gravity.trunking.setters.
TrunkDesignSettersMixin
¶ Bases:
object
The mixin gathering setters of TrunkDesign.
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energy_at_tail_point
¶ Get or set the hydraulic energy at the ‘tail’ end of the Trunk
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energy_at_head_point
¶ Get or set the hydraulic energy at the ‘head’ end of the Trunk
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property
energy_at_head_point
¶ Get or set the hydraulic energy at the ‘head’ end of the Trunk.
Setting the hydraulic energy to a new value will update the pressure at the ‘head’ end.
Setting the hydraulic energy to a new value will not modify the hydraulic energy line or the piped_segments in the Trunk.
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property
energy_at_tail_point
¶ Get or set the hydraulic energy at the ‘tail’ end of the Trunk.
Setting the hydraulic energy to a new value will update the pressure at the ‘tail’ end.
Setting the hydraulic energy to a new value will not modify the hydraulic energy line or the piped_segments in the Trunk. Usually, once the energy_at_tail_point is set, the code runs the simplex solver and then sets the piped segments to the Trunk. Then it evaluates the new water energy line, and finally checks for hydraulic pressure compliance of the energy line. This setter is then run at an initial stage of the design algorithm.
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business.gravity.trunking.traversals module¶
Provide algorithms solving the ‘hydraulic design problem’ within a Trunk.
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class
business.gravity.trunking.traversals.
AtmosphericTraversalTrunkMixin
¶ Bases:
object
-
property
get_traversal_solution
¶ it dispatches always the _delta_zero approach when solving the ‘hydraulic design problem’.
An AtmosphericTrunkDesign will always have zero hydraulic pressure at its ends and therefore its traversal algorithm is surely the _delta_zero.
- Type
Override the parent class method
-
property
-
class
business.gravity.trunking.traversals.
TraversalsTrunkDesignMixin
¶ Bases:
business.commons.traversals.TraversalsTrunkOrStretchMixin
Algorithms to find the optimal piped segments in the Trunk.
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get_traversal_solution
()¶ return the optimal piped segments, with given water flow and energy constraints at ‘tail’ and ‘head’ ends
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property
get_traversal_solution
¶ Return the optimal piped segments, with given water flow and energy constraints at ‘tail’ and ‘head’ ends.
This method dispatches the execution to specific methods depending on the number of rated working pressure classes that the hydraulic energy line crosses from ‘tail’ to ‘head’.
- Returns
either – list(PipedSegment), if a solution was found
or – list(simplex_failure_list) otherwise TODO: questo simbolo di [] confonde! Non è chiaro se restituisci una ‘lista di liste’ o cosa! E lo hai scritto tu.
TODOs
—–
il fatto che questa def restituisce either…or la rende difficile.
Ricorda però che siamo dentro una coroutine e non si possono sollevare le eccezioni.
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-
business.gravity.trunking.traversals.
filter_accomplished_solutions
(function: Callable) → Callable¶