`EdbNets`#

class pyedb.dotnet.database.nets.EdbNets(p_edb)#

Bases: pyedb.common.nets.CommonNets

Manages EDB methods for nets management accessible from Edb.nets property.

Examples

>>> from pyedb import Edb
>>> edbapp = Edb("myaedbfolder", edbversion="2021.2")
>>> edb_nets = edbapp.nets

Overview#

Methods

`eligible_power_nets`	Return a list of nets calculated by area to be eligible for PWR/Ground net classification.
`generate_extended_nets`	Get extended net and associated components.
`classify_nets`	Reassign power/ground or signal nets based on list of nets.
`is_power_gound_net`	Determine if one of the nets in a list is power or ground.
`get_dcconnected_net_list`	Get the nets connected to the direct current through inductors.
`get_powertree`	Retrieve the power tree.
`get_net_by_name`	Find a net by name.
`delete`	Delete one or more nets from EDB.
`find_or_create_net`	Find or create the net with the given name in the layout.
`is_net_in_component`	Check if a net belongs to a component.
`find_and_fix_disjoint_nets`	Find and fix disjoint nets from a given netlist.
`merge_nets_polygons`	Convert paths from net into polygons, evaluate all connected polygons and perform the merge.

Properties

`db`	Db object.
`nets`	Nets.
`netlist`	Return the cell netlist.
`signal`	Signal nets.
`power`	Power nets.
`nets_by_components`	Get all nets for each component instance.
`components_by_nets`	Get all component instances grouped by nets.

Special methods

`__getitem__`	Get a net from the Edb project.
`__contains__`	Determine if a net is named `name` or not.

Import detail#

from pyedb.dotnet.database.nets import EdbNets

Property detail#

property EdbNets.db#: Db object.

property EdbNets.nets#

Nets.

Returns:

dict[str, pyedb.dotnet.database.edb_data.nets_data.EDBNetsData]: Dictionary of nets.

property EdbNets.netlist#

Return the cell netlist.

Returns:

list: Net names.

property EdbNets.signal#

Signal nets.

Returns:

dict[str, pyedb.dotnet.database.edb_data.EDBNetsData]: Dictionary of signal nets.

property EdbNets.power#

Power nets.

Returns:

dict[str, pyedb.dotnet.database.edb_data.EDBNetsData]: Dictionary of power nets.

property EdbNets.nets_by_components: dict#: Get all nets for each component instance.

property EdbNets.components_by_nets: dict#: Get all component instances grouped by nets.

Method detail#

EdbNets.__getitem__(name)#

Get a net from the Edb project.

Parameters:

namestr, int

Returns:

:class:` pyedb.dotnet.database.edb_data.nets_data.EDBNetsData

EdbNets.__contains__(name)#

Determine if a net is named name or not.

Parameters:

namestr

Returns:

bool: True when one of the net is named name, False otherwise.

EdbNets.eligible_power_nets(threshold=0.3)#

Return a list of nets calculated by area to be eligible for PWR/Ground net classification.: It uses the same algorithm implemented in SIwave.

Parameters:

thresholdfloat, optional: Area ratio used by the get_power_ground_nets method.

Returns:

list of pyedb.dotnet.database.edb_data.EDBNetsData

EdbNets.generate_extended_nets(resistor_below: int | float = 10, inductor_below: int | float = 1, capacitor_above: int | float = 1, exception_list: list = None, include_signal: bool = True, include_power: bool = True) → list#

Get extended net and associated components.

Parameters:

resistor_belowint, float, optional: Threshold of resistor value. Search extended net across resistors which has value lower than the threshold.
inductor_belowint, float, optional: Threshold of inductor value. Search extended net across inductances which has value lower than the threshold.
capacitor_aboveint, float, optional: Threshold of capacitor value. Search extended net across capacitors which has value higher than the threshold.
exception_listlist, optional: List of components to bypass when performing threshold checks. Components in the list are considered as serial components. The default is None.
include_signalstr, optional: Whether to generate extended signal nets. The default is True.
include_powerstr, optional: Whether to generate extended power nets. The default is True.

Returns:

list: List of all extended nets.

Examples

>>> from pyedb import Edb
>>> app = Edb()
>>> app.nets.get_extended_nets()

EdbNets.classify_nets(power_nets=None, signal_nets=None)#

Reassign power/ground or signal nets based on list of nets.

Parameters:

power_netsstr, list, optional: List of power nets to assign. Default is None.
signal_netsstr, list, optional: List of signal nets to assign. Default is None.

Returns:

bool: True when successful, False when failed.

EdbNets.is_power_gound_net(netname_list)#

Determine if one of the nets in a list is power or ground.

Parameters:

netname_listlist: List of net names.

Returns:

bool: True when one of the net names is "power" or "ground", False otherwise.

EdbNets.get_dcconnected_net_list(ground_nets=['GND'], res_value=0.001)#

Get the nets connected to the direct current through inductors.

Note

Only inductors are considered.

Parameters:

ground_netslist, optional: List of ground nets. The default is ["GND"].

Returns:

list: List of nets connected to DC through inductors.

EdbNets.get_powertree(power_net_name, ground_nets)#

Retrieve the power tree.

Parameters:

power_net_namestr: Name of the power net.
ground_nets

Returns:

EdbNets.get_net_by_name(net_name)#: Find a net by name.

EdbNets.delete(netlist)#

Delete one or more nets from EDB.

Parameters:

netliststr or list: One or more nets to delete.

Returns:

list: List of nets that were deleted.

Examples

>>> deleted_nets = database.nets.delete(["Net1", "Net2"])

EdbNets.find_or_create_net(net_name='', start_with='', contain='', end_with='')#

Find or create the net with the given name in the layout.

Parameters:

net_namestr, optional: Name of the net to find or create. The default is "".
start_withstr, optional: All net name starting with the string. Not case-sensitive.
containstr, optional: All net name containing the string. Not case-sensitive.
end_withstr, optional: All net name ending with the string. Not case-sensitive.

Returns:

object: Net Object.

EdbNets.is_net_in_component(component_name, net_name)#

Check if a net belongs to a component.

Parameters:

component_namestr: Name of the component.
net_namestr: Name of the net.

Returns:

bool: True if the net is found in component pins.

EdbNets.find_and_fix_disjoint_nets(net_list=None, keep_only_main_net=False, clean_disjoints_less_than=0.0, order_by_area=False)#

Find and fix disjoint nets from a given netlist.

Deprecated since version Use: new property edb.layout_validation.disjoint_nets() instead.

Parameters:

net_liststr, list, optional: List of nets on which check disjoints. If None is provided then the algorithm will loop on all nets.
keep_only_main_netbool, optional: Remove all secondary nets other than principal one (the one with more objects in it). Default is False.
clean_disjoints_less_thanbool, optional: Clean all disjoint nets with area less than specified area in square meters. Default is 0.0 to disable it.
order_by_areabool, optional: Whether if the naming order has to be by number of objects (fastest) or area (slowest but more accurate). Default is False.

Returns:

List: New nets created.

Examples

>>> renamed_nets = database.nets.find_and_fix_disjoint_nets(["GND", "Net2"])

EdbNets.merge_nets_polygons(net_names_list)#

Convert paths from net into polygons, evaluate all connected polygons and perform the merge.

Parameters:

net_names_liststr or list[str]: Net name of list of net name.

Returns:

bool: True when successful, False when failed.

EdbNets#

Overview#

Import detail#

Property detail#

Method detail#

`EdbNets`#