WireViz/src/wireviz/wv_dataclasses.py
2023-03-29 15:20:08 -04:00

1234 lines
42 KiB
Python

# -*- coding: utf-8 -*-
import logging
from dataclasses import dataclass, field
from enum import Enum, IntEnum
from itertools import zip_longest
from math import modf
from typing import Any, Dict, List, Optional, Tuple, Union
from wireviz.wv_colors import (
COLOR_CODES,
ColorOutputMode,
MultiColor,
SingleColor,
get_color_by_colorcode_index,
)
from wireviz.wv_utils import aspect_ratio, awg_equiv, mm2_equiv, remove_links
# Each type alias have their legal values described in comments
# - validation might be implemented in the future
PlainText = str # Text not containing HTML tags nor newlines
Hypertext = str # Text possibly including HTML hyperlinks that are removed in all outputs except HTML output
MultilineHypertext = (
str # Hypertext possibly also including newlines to break lines in diagram output
)
Designator = PlainText # Case insensitive unique name of connector or cable
# Literal type aliases below are commented to avoid requiring python 3.8
ImageScale = PlainText # = Literal['false', 'true', 'width', 'height', 'both']
# Type combinations
Pin = Union[int, PlainText] # Pin identifier
PinIndex = int # Zero-based pin index
Wire = Union[int, PlainText] # Wire number or Literal['s'] for shield
NoneOrMorePins = Union[
Pin, Tuple[Pin, ...], None
] # None, one, or a tuple of pin identifiers
NoneOrMorePinIndices = Union[
PinIndex, Tuple[PinIndex, ...], None
] # None, one, or a tuple of zero-based pin indices
OneOrMoreWires = Union[Wire, Tuple[Wire, ...]] # One or a tuple of wires
# Metadata can contain whatever is needed by the HTML generation/template.
MetadataKeys = PlainText # Literal['title', 'description', 'notes', ...]
Side = Enum("Side", "LEFT RIGHT")
ArrowDirection = Enum("ArrowDirection", "NONE BACK FORWARD BOTH")
ArrowWeight = Enum("ArrowWeight", "SINGLE DOUBLE")
# NumberAndUnit = namedtuple("NumberAndUnit", "number unit")
AUTOGENERATED_PREFIX = "AUTOGENERATED_"
BomCategory = IntEnum( # to enforce ordering in BOM
"BomEntry", "CONNECTOR CABLE WIRE PIN ADDITIONAL BUNDLE"
)
QtyMultiplierConnector = Enum(
"QtyMultiplierConnector", "PINCOUNT POPULATED CONNECTIONS"
)
QtyMultiplierCable = Enum(
"QtyMultiplierCable", "WIRECOUNT TERMINATION LENGTH TOTAL_LENGTH"
)
# TODO: standardize metadata to indicate which are supported...
class Metadata(dict):
pass
@dataclass
class NumberAndUnit:
number: float
unit: Optional[str] = None
@staticmethod
def to_number_and_unit(
inp: Any,
default_unit: Optional[str] = None,
default_value: Optional[float] = None,
):
if inp is None:
if default_value is not None:
return NumberAndUnit(default_value, default_unit)
return None
elif isinstance(inp, NumberAndUnit):
return inp
elif isinstance(inp, float) or isinstance(inp, int):
return NumberAndUnit(float(inp), default_unit)
elif isinstance(inp, str):
if " " in inp:
number, unit = inp.split(" ", 1)
else:
number, unit = inp, default_unit
try:
number = float(number)
except ValueError:
raise Exception(
f"{inp} is not a valid number and unit.\n"
"It must be a number, or a number and unit separated by a space."
)
else:
return NumberAndUnit(number, unit)
def chose_unit(self, other):
if self.unit is None:
return other.unit
if other.unit is not None and self.unit != other.unit:
raise ValueError(f"Cannot add {self} and {other}, units not matching")
return self.unit
@property
def number_str(self):
return f"{self.number:.2f}" if modf(self.number)[0] else f"{int(self.number)}"
@property
def unit_str(self):
return "" if self.unit is None else self.unit
def __str__(self):
return " ".join((self.number_str, self.unit_str)).strip()
def __eq__(self, other):
return self.number == other.number and self.unit == other.unit
def __add__(self, other):
other = NumberAndUnit.to_number_and_unit(other, self.unit, 0)
return NumberAndUnit(
number=float(self.number) + float(other.number),
unit=self.chose_unit(other),
)
def __mul__(self, other):
other = NumberAndUnit.to_number_and_unit(other, self.unit, 1)
return NumberAndUnit(
number=float(self.number) * float(other.number),
unit=self.chose_unit(other),
)
@dataclass
class PartNumberInfo:
pn: Optional[str] = None
manufacturer: Optional[str] = None
mpn: Optional[str] = None
supplier: Optional[str] = None
spn: Optional[str] = None
BOM_KEY_TO_COLUMNS = {
"pn": "P/N",
"manufacturer": "Manufacturer",
"mpn": "MPN",
"supplier": "Supplier",
"spn": "SPN",
}
def __bool__(self):
return bool(self.pn or self.manufacturer or self.mpn or self.supplier or self.spn)
def __hash__(self):
return hash((self.pn, self.manufacturer, self.mpn, self.supplier, self.spn))
def __eq__(self, other):
return hash(self) == hash(other)
def __getitem__(self, key):
return getattr(self, key)
def __setitem__(self, key, value):
setattr(self, key, value)
def __post_init__(self):
empty_if_none = lambda x: "" if x is None else str(x)
if isinstance(self.pn, list):
raise ValueError(f'pn ({self.pn}) should not be a list')
self.pn = empty_if_none(self.pn)
self.manufacturer = empty_if_none(self.manufacturer)
self.mpn = empty_if_none(self.mpn)
self.supplier = empty_if_none(self.supplier)
self.spn = empty_if_none(self.spn)
@property
def bom_keys(self):
return list(self.BOM_KEY_TO_COLUMNS.keys())
@property
def bom_dict(self):
return {k: self[k] for k in self.bom_keys}
@property
def str_list(self):
l = ["", "", ""]
if self.pn:
l[0] = f"P/N: {self.pn}"
l[1] = self.manufacturer
if self.mpn:
if not l[1]:
l[1] = "MPN"
l[1] += ": "
l[1] += self.mpn
l[2] = self.supplier
if self.spn:
if not l[2]:
l[2] = "SPN"
l[2] += ": "
l[2] += self.spn
return [i for i in l if i]
def copy(self):
return PartNumberInfo(
pn=self.pn,
manufacturer=self.manufacturer,
mpn=self.mpn,
supplier=self.supplier,
spn=self.spn,
)
def clear_per_field(self, op, other):
part = self.copy()
if other is None:
if op == '==':
return part
elif op == '!=':
return None
else:
raise NotImplementedError(f'op {op} not supported')
if isinstance(other, list):
for item in other:
part = part.clear_per_field(op, item)
else:
for k in ["pn", "manufacturer", "mpn", "supplier", "spn"]:
if op == '==':
if part[k] == other[k]:
part[k] = ""
elif op == '!=':
if part[k] != other[k]:
part[k] = ""
else:
raise NotImplementedError(f'op {op} not supported')
return part
def keep_only_eq(self, other):
return self.clear_per_field('!=', other)
def remove_eq(self, other):
return self.clear_per_field('==', other)
@staticmethod
def list_keep_only_eq(partnumbers):
pn = partnumbers[0]
for p in partnumbers:
pn = pn.keep_only_eq(p)
return pn
@dataclass
class BomEntry:
qty: NumberAndUnit
partnumbers: PartNumberInfo
id: str
amount: Optional[NumberAndUnit] = None
qty_multiplier: Union[int, float] = 1
description: Optional[str] = None
category: Optional[str] = None
ignore_in_bom: Optional[bool] = False
# Used to add all occurence of a BomEntry
designators: [List] = field(default_factory=list)
per_harness: [Dict] = field(default_factory=dict)
# Used to restrict printed lengths
MAX_PRINTED_DESCRIPTION: int = 40
MAX_PRINTED_DESIGNATORS: int = 2
restrict_printed_lengths: bool = True
scaled_per_harness = False
# Map a bom key to the header
BOM_KEY_TO_COLUMNS = {
"id": "#",
"qty": "Qty",
"unit": "Unit",
"description": "Description",
"designators": "Designators",
"per_harness": "Per Harness",
}
def __repr__(self):
return f'{id}: {self.partnumbers}, {self.qty}'
def __hash__(self):
return hash((self.partnumbers, self.description))
def __eq__(self, other):
return hash(self) == hash(other)
def __add__(self, other):
# TODO: add update designators and per_harness
return BomEntry(
qty=self.qty + other.qty,
partnumbers=self.partnumbers,
id=self.id,
amount=None, # amount already included
qty_multiplier=None, # qty_multiplier already included
description=self.description,
category=self.category,
ignore_in_bom=self.ignore_in_bom,
designators=self.designators,
per_harness=self.per_harness,
)
def __getitem__(self, key):
if key in self.partnumbers.BOM_KEY_TO_COLUMNS:
return self.partnumbers[key]
return getattr(self, key)
def __setitem__(self, key, value):
setattr(self, key, value)
def __post_init__(self):
assert isinstance(
self.qty, NumberAndUnit
), f"Unexpected qty type {self.qty}"
assert isinstance(
self.partnumbers, PartNumberInfo
), f"Unexpected partnumbers type {self.partnumbers}"
assert self.id is None or isinstance(
self.id, str
), f"Unexpected id type {self.id}"
if self.amount is not None:
assert isinstance(
self.amount, NumberAndUnit
), f"Unexpected id type {self.amount}"
self.qty *= self.amount
if self.qty_multiplier is not None:
if not isinstance(self.qty_multiplier, str):
self.qty *= float(self.qty_multiplier)
@property
def description_str(self):
description = self.description
if self.restrict_printed_lengths and len(description) > self.MAX_PRINTED_DESCRIPTION:
description = f"{description[:self.MAX_PRINTED_DESCRIPTION]} (...)"
return description
@property
def designators_str(self):
if not self.designators:
return ""
all_designators = sorted(self.designators)
if self.restrict_printed_lengths and len(all_designators) > self.MAX_PRINTED_DESIGNATORS:
all_designators = all_designators[: self.MAX_PRINTED_DESIGNATORS] + ["..."]
return ", ".join(all_designators)
@property
def bom_keys(self):
return list(self.BOM_KEY_TO_COLUMNS.keys()) + self.partnumbers.bom_keys
@property
def bom_dict(self):
d = {}
for k in self.bom_keys:
# Some keys require custom handling, others use default value
if k == "id":
d[k] = str(self.id)
elif k == "qty":
d[k] = self.qty.number_str
elif k == "unit":
d[k] = self.qty.unit_str
elif k == "description":
d[k] = self.description_str
elif k == "designators":
d[k] = self.designators_str
elif k == "per_harness":
content = [
f'{name}: {info["qty"]}' for name, info in self.per_harness.items()
]
if len(content) > 1:
d[k] = ", ".join(content)
else:
d[k] = self[k]
return d
@property
def bom_defined(self):
d = self.bom_dict
return {k for k, v in d.items() if v != ""}
def bom_column(self, key):
if key in self.BOM_KEY_TO_COLUMNS:
return self.BOM_KEY_TO_COLUMNS[key]
if key in self.partnumbers.BOM_KEY_TO_COLUMNS:
return self.partnumbers.BOM_KEY_TO_COLUMNS[key]
raise ValueError(f"key '{key}' not found in bom keys")
def scale_per_harness(self, qty_multipliers):
if self.scaled_per_harness:
logging.warn('{self}: Already scaled')
qty = NumberAndUnit(0, self.qty.unit_str)
for name, info in self.per_harness.items():
multiplier_name = [k for k in qty_multipliers.keys() if name.endswith(k)]
if len(multiplier_name) == 0:
raise ValueError(f'No multiplier found for harness {name} in {qty_multipliers}')
if len(multiplier_name) > 1:
raise ValueError(f'Conflicting multipliers found ({multiplier_name}) for harness {name} in {qty_multipliers}')
info['qty'] *= qty_multipliers[multiplier_name[0]]
qty += info['qty']
self.qty = qty
self.scaled_per_harness = True
@dataclass
class Options:
fontname: PlainText = "arial"
notes_to_right: bool = True
bgcolor: SingleColor = "WH" # will be converted to SingleColor in __post_init__
bgcolor_node: SingleColor = "WH"
bgcolor_connector: SingleColor = None
bgcolor_cable: SingleColor = None
bgcolor_bundle: SingleColor = None
color_output_mode: ColorOutputMode = ColorOutputMode.EN_UPPER
mini_bom_mode: bool = True
template_separator: str = "."
_pad: int = 0
# TODO: resolve template and image paths during rendering, not during YAML parsing
_template_paths: [List] = field(default_factory=list)
_image_paths: [List] = field(default_factory=list)
def __post_init__(self):
self.bgcolor = SingleColor(self.bgcolor)
self.bgcolor_node = SingleColor(self.bgcolor_node) or self.bgcolor
self.bgcolor_connector = (
SingleColor(self.bgcolor_connector) or self.bgcolor_node
)
self.bgcolor_cable = SingleColor(self.bgcolor_cable) or self.bgcolor_node
self.bgcolor_bundle = SingleColor(self.bgcolor_bundle) or self.bgcolor_cable
@dataclass
class Image:
# Attributes of the image object <img>:
src: str
scale: Optional[ImageScale] = None
# Attributes of the image cell <td> containing the image:
width: Optional[int] = None
height: Optional[int] = None
fixedsize: Optional[bool] = None
bgcolor: SingleColor = None
# Contents of the text cell <td> just below the image cell:
caption: Optional[MultilineHypertext] = None
# See also HTML doc at https://graphviz.org/doc/info/shapes.html#html
def __post_init__(self):
self.bgcolor = SingleColor(self.bgcolor)
if self.fixedsize is None:
# Default True if any dimension specified unless self.scale also is specified.
self.fixedsize = (self.width or self.height) and self.scale is None
if self.scale is None:
if not self.width and not self.height:
self.scale = "false"
elif self.width and self.height:
self.scale = "both"
else:
self.scale = "true" # When only one dimension is specified.
if self.fixedsize:
# If only one dimension is specified, compute the other
# because Graphviz requires both when fixedsize=True.
if self.height:
if not self.width:
self.width = self.height * aspect_ratio(self.src)
else:
if self.width:
self.height = self.width / aspect_ratio(self.src)
@dataclass
class PinClass:
index: int
id: str
label: str
color: MultiColor
parent: str # designator of parent connector
_num_connections = 0 # incremented in Connector.connect()
_anonymous: bool = False # true for pins on autogenerated connectors
_simple: bool = False # true for simple connector
# TODO: support a "crimp" defined by parent
def __str__(self):
snippets = [ # use str() for each in case they are int or other non-str
str(self.parent) if not self._anonymous else "",
str(self.id) if not self._anonymous and not self._simple else "",
str(self.label) if self.label else "",
]
return ":".join([snip for snip in snippets if snip != ""])
@property
def category(self):
return BomCategory.PIN
@dataclass
class Component:
category: Optional[str] = None # currently only used by cables, to define bundles
type: Union[MultilineHypertext, List[MultilineHypertext]] = None
subtype: Union[MultilineHypertext, List[MultilineHypertext]] = None
# the following are provided for user convenience and should not be accessed later.
# their contents are loaded into partnumbers during the child class __post_init__()
pn: str = None
manufacturer: str = None
mpn: str = None
supplier: str = None
spn: str = None
# BOM info
qty: NumberAndUnit = NumberAndUnit(1, None)
amount: Optional[NumberAndUnit] = None
ignore_in_bom: bool = False
id: Optional[str] = None # to be filled after harness is built
designators: [List] = field(
default_factory=list
) # Used only for additional components
# Utility
parent: Optional = None
additional_components: Optional[List] = field(default_factory=list)
qty_multiplier: Union[QtyMultiplierConnector, QtyMultiplierCable, int] = 1
_qty_multiplier_computed: Union[int, float] = 1
# style
bgcolor: SingleColor = None
def __hash__(self):
"""Provide a hash for this component dataclass.
Any component using same part should have the same hash
"""
return hash(self.partnumbers)
def __str__(self) -> str:
return f"{self.type}{', ' + self.subtype if self.subtype else ''}"
def __post_init__(self):
self.qty = NumberAndUnit.to_number_and_unit(self.qty)
self.amount = NumberAndUnit.to_number_and_unit(self.amount)
if isinstance(self.pn, list):
raise RuntimeError(f'PN ({self.pn}) should not be a list')
for i, item in enumerate(self.additional_components):
if isinstance(item, Component):
continue
elif isinstance(item, dict):
self.additional_components[i] = Component(
**item, category=BomCategory.ADDITIONAL, parent=self
)
else:
raise ValueError(
f"additional component {item} should be a Component or a dict, is {type(item)}"
)
if self.category is None:
raise RuntimeError(f"category should be defined for {self}")
def compute_qty_multipliers(self):
pass
@property
def bom_entry(self):
self.compute_qty_multipliers()
return BomEntry(
qty=self.qty,
partnumbers=self.partnumbers,
id=self.id,
amount=self.amount,
qty_multiplier=self._qty_multiplier_computed,
description=str(self),
category=self.category,
designators=self.designators,
ignore_in_bom=self.ignore_in_bom,
)
@property
def partnumbers(self):
partnos = [self.pn, self.manufacturer, self.mpn, self.supplier, self.spn]
partnos = [remove_links(entry) for entry in partnos]
return PartNumberInfo(*partnos)
@dataclass
class GraphicalComponent(Component): # abstract class
# component properties
designator: Designator = None
color: Optional[MultiColor] = None
image: Optional[Image] = None
additional_components: List[Component] = field(default_factory=list)
notes: Optional[MultilineHypertext] = None
# BOM options
add_up_in_bom: Optional[bool] = None
# rendering options
bgcolor: Optional[SingleColor] = None
bgcolor_title: Optional[SingleColor] = None
show_name: Optional[bool] = None
def __hash__(self):
return hash(super())
def __post_init__(self):
super().__post_init__()
@dataclass
class Connector(GraphicalComponent):
# connector-specific properties
style: Optional[str] = None
loops: List[List[Pin]] = field(default_factory=list)
# pin information in particular
pincount: Optional[int] = None
pins: List[Pin] = field(default_factory=list) # legacy
pinlabels: List[Pin] = field(default_factory=list) # legacy
pincolors: List[str] = field(default_factory=list) # legacy
pin_objects: Dict[Any, PinClass] = field(default_factory=dict) # new
# rendering option
show_pincount: Optional[bool] = None
hide_disconnected_pins: bool = False
def __hash__(self):
return hash(super())
def __str__(self) -> str:
substrs = [
"Connector",
self.type,
self.subtype,
f"{self.pincount} pins" if self.show_pincount else None,
str(self.color) if self.color else None,
]
return ", ".join([str(s) for s in substrs if s is not None and s != ""])
@property
def is_autogenerated(self):
return self.designator.startswith(AUTOGENERATED_PREFIX)
def should_show_pin(self, pin_id):
return (
not self.hide_disconnected_pins
or self.pin_objects[pin_id]._num_connections > 0
)
def __post_init__(self) -> None:
self.category = BomCategory.CONNECTOR
super().__post_init__()
self.bgcolor = SingleColor(self.bgcolor)
self.bgcolor_title = SingleColor(self.bgcolor_title)
self.color = MultiColor(self.color)
# connectors do not support custom qty or amount
self.qty = NumberAndUnit(1, None)
self.amount = None
if isinstance(self.image, dict):
self.image = Image(**self.image)
self.ports_left = False
self.ports_right = False
self.visible_pins = {}
if self.style == "simple":
if self.pincount and self.pincount > 1:
raise Exception(
"Connectors with style set to simple may only have one pin"
)
self.pincount = 1
if not self.pincount:
self.pincount = max(
len(self.pins), len(self.pinlabels), len(self.pincolors)
)
if not self.pincount:
raise Exception(
"You need to specify at least one: "
"pincount, pins, pinlabels, or pincolors"
)
# create default list for pins (sequential) if not specified
if not self.pins:
self.pins = list(range(1, self.pincount + 1))
if len(self.pins) != len(set(self.pins)):
raise Exception("Pins are not unique")
# all checks have passed
pin_tuples = zip_longest(
self.pins,
self.pinlabels,
self.pincolors,
)
for pin_index, (pin_id, pin_label, pin_color) in enumerate(pin_tuples):
self.pin_objects[pin_id] = PinClass(
index=pin_index,
id=pin_id,
label=pin_label,
color=MultiColor(pin_color),
parent=self.designator,
_anonymous=self.is_autogenerated,
_simple=self.style == "simple",
)
if self.show_name is None:
self.show_name = self.style != "simple" and not self.is_autogenerated
if self.show_pincount is None:
# hide pincount for simple (1 pin) connectors by default
self.show_pincount = self.style != "simple"
for loop in self.loops:
# TODO: check that pins to connect actually exist
# TODO: allow using pin labels in addition to pin numbers,
# just like when defining regular connections
# TODO: include properties of wire used to create the loop
if len(loop) != 2:
raise Exception("Loops must be between exactly two pins!")
# side=None, determine side to show loops during rendering
self.activate_pin(loop[0], side=None, is_connection=True)
self.activate_pin(loop[1], side=None, is_connection=True)
def activate_pin(self, pin_id, side: Side = None, is_connection=True) -> None:
if is_connection:
self.pin_objects[pin_id]._num_connections += 1
if side == Side.LEFT:
self.ports_left = True
elif side == Side.RIGHT:
self.ports_right = True
def compute_qty_multipliers(self):
# do not run before all connections in harness have been made!
num_populated_pins = len(
[pin for pin in self.pin_objects.values() if pin._num_connections > 0]
)
num_connections = sum(
[pin._num_connections for pin in self.pin_objects.values()]
)
qty_multipliers_computed = {
"PINCOUNT": self.pincount,
"POPULATED": num_populated_pins,
"CONNECTIONS": num_connections,
}
for subitem in self.additional_components:
if isinstance(subitem.qty_multiplier, str):
computed_factor = qty_multipliers_computed[subitem.qty_multiplier.upper()]
#if isinstance(subitem.qty_multiplier, QtyMultiplierConnector):
# computed_factor = qty_multipliers_computed[subitem.qty_multiplier.name.upper()]
#elif isinstance(subitem.qty_multiplier, QtyMultiplierCable):
# raise Exception("Used a cable multiplier in a connector!")
elif isinstance(subitem.qty_multiplier, int) or isinstance(subitem.qty_multiplier, float):
computed_factor = subitem.qty_multiplier
else:
raise ValueError(f'Unexpected qty multiplier "{subitem.qty_multiplier}"')
subitem._qty_multiplier_computed = computed_factor
@dataclass
class WireClass(GraphicalComponent):
parent: str = None # designator of parent cable/bundle
# wire-specific properties
index: int = None
label: str = ""
color: MultiColor = None
# inheritable from parent cable
type: Union[MultilineHypertext, List[MultilineHypertext]] = None
subtype: Union[MultilineHypertext, List[MultilineHypertext]] = None
gauge: Optional[NumberAndUnit] = None
length: Optional[NumberAndUnit] = None
ignore_in_bom: Optional[bool] = False
def __hash__(self):
return hash((self.partnumbers, self.gauge_str, str(self.color)))
def __str__(self) -> str:
substrs = [
"Wire",
self.type,
self.subtype,
self.gauge_str,
str(self.color) if self.color else None,
]
desc = ", ".join([s for s in substrs if s is not None and s != ""])
return desc
def __post_init__(self):
self.category = BomCategory.WIRE
@property
def partnumbers(self):
_partnumbers = super().partnumbers
if not _partnumbers.mpn and self.color is not None:
_partnumbers.mpn = self.get_mpn_if_belden()
return _partnumbers
@property
def bom_entry(self):
self.compute_qty_multipliers()
return BomEntry(
qty=self.length,
partnumbers=self.partnumbers,
id=self.id,
description=str(self),
category=self.category,
ignore_in_bom=self.ignore_in_bom,
)
@property
def gauge_str(self):
if not self.gauge:
return None
number = (
int(self.gauge.number) if self.gauge.unit == "AWG" else self.gauge.number
)
actual_gauge = f"{number} {self.gauge.unit}"
actual_gauge = actual_gauge.replace("mm2", "mm\u00B2")
return actual_gauge
@property
def gauge_str_with_equiv(self):
if not self.gauge:
return None
actual_gauge = self.gauge_str
equivalent_gauge = ""
if self.show_equiv:
# convert unit if known
if self.gauge.unit == "mm2":
equivalent_gauge = f" ({awg_equiv(self.gauge.number)} AWG)"
elif self.gauge.unit.upper() == "AWG":
equivalent_gauge = f" ({mm2_equiv(self.gauge.number)} mm2)"
out = f"{actual_gauge}{equivalent_gauge}"
out = out.replace("mm2", "mm\u00B2")
return out
@property
def length_str(self):
if not self.length:
return None
return str(self.length)
belden_color = {
"BN": "001",
"RD": "002",
"OG": "003",
"YE": "004",
"GN": "005",
"TQ": "006", # (For Belden: light blue. For WireViz: turquoise)
"VT": "007",
"GY": "008",
"WH": "009",
"BK": "010",
"BG": "011",
"PK": "012",
"BU": "013",
"BKRD": "015", # (for Belden: white/red)
"BKGN": "016", # (for Belden: white/green)
"BKYE": "017", # (for Belden: white/yellow)
"BKBU": "018", # (for Belden: white/blue)
"BKBN": "019", # (for Belden: white/brown)
"BKOG": "020", # (for Belden: white/orange)
"BKGY": "021", # (for Belden: white/gray)
"BKVT": "022", # (for Belden: white/purple)
# (1) Why use BKRD instead of WHRD, since Belden only sells white/red?
# - WHRD is impractical to use in Wireviz (white wire sides on white background does not help with identification)
# - BKRD is clearly distinguishable, and comes handy to use in Wireviz, as the representation of a GND rail associated (even twisted, if applicable) with a specific RD signal wire.
# (2) For all wire colors see:
# https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/7806-source/options/view/cabling-solutions-for-industrial-applications-catalog-belden-09-2020#page=153
}
belden_tfe_base_mpn = {
# Leftmost in list is the prefered MPN
# NOTE (lal 2022-12-20): this prefered MPN is arbitrary ATM
"16 AWG": ["83030", "83010"],
"18 AWG": ["83029", "83009"],
"20 AWG": ["83028", "83027", "83007", "83008"],
"22 AWG": ["83025", "83026", "83005", "83006", "83049", "83050"],
"24 AWG": ["83023", "83003", "83004", "83047", "83048"],
"26 AWG": ["83002", "83046"],
"28 AWG": ["83001", "83045"],
"30 AWG": ["83000", "83043"],
"32 AWG": ["83041"],
# see: https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/7806-source/options/view/cabling-solutions-for-industrial-applications-catalog-belden-09-2020#page=136
}
@property
def is_belden(self):
if "belden" in self.manufacturer.lower():
return True
return False
def get_belden_color(self, color):
if color not in self.belden_color:
logging.warn(
f"{self}: Color '{self.color}' not found in belden colors {list(self.belden_color.keys())}, defaulting to BK"
)
return self.belden_color["BK"]
return self.belden_color[color]
def gen_belden_cable_with_alternate(self):
# Gauge and mpn base
try:
parts = self.belden_tfe_base_mpn[self.gauge_str]
except KeyError:
raise ValueError(
f"Couldn't find a belden TFE wire for wire of {self.gauge_str}"
)
color = self.get_belden_color(str(self.color))
if not color:
raise ValueError(f"Failed to find a color for property: {self}")
# Create the list of mpn
roll_length = 100
mpn_list = [f"{mpn} {color}{roll_length}" for mpn in parts]
main_part = mpn_list[0]
alternates = mpn_list[1:] if len(mpn_list) > 1 else []
return (main_part, alternates)
# TODO: clean me up
def get_mpn_if_belden(self):
if self.manufacturer and not self.mpn:
if self.is_belden:
main_part, alternates = self.gen_belden_cable_with_alternate()
return main_part
if alternates:
logging.info(
f'Alternate part{"s" if len(alternates) > 1 else ""} available for {self.gauge_str}, color {self.color}: {alternates}'
)
else:
logging.info(
f'Not updating part for manufacturer {self.manufacturer}, only "belden" supported'
)
else:
logging.info(f"Not updating part, no manufacturer provided")
return self.mpn if self.mpn else ""
@dataclass
class ShieldClass(WireClass):
pass # TODO, for wires with multiple shields more shield details, ...
def __hash__(self):
return hash(self.partnumbers)
@dataclass
class Connection:
from_: PinClass = None
via: Union[WireClass, ShieldClass] = None
to: PinClass = None
@dataclass
class Cable(WireClass):
# cable-specific properties
gauge: Optional[NumberAndUnit] = None
length: Optional[NumberAndUnit] = None
color_code: Optional[str] = None
# wire information in particular
wirecount: Optional[int] = None
shield: Union[bool, MultiColor] = False
colors: List[str] = field(default_factory=list) # legacy
wirelabels: List[Wire] = field(default_factory=list) # legacy
wire_objects: Dict[Any, WireClass] = field(default_factory=dict) # new
# internal
_connections: List[Connection] = field(default_factory=list)
# rendering options
show_name: Optional[bool] = None
show_equiv: bool = False
show_wirecount: bool = True
def __hash__(self):
if self.is_bundle:
return hash(tuple([hash(w) for w in self.wire_objects.values()]))
else:
return hash(super())
def __str__(self) -> str:
substrs = [
("", "Cable"),
(", ", self.type),
(", ", self.subtype),
(", ", self.wirecount),
(" ", f"x {self.gauge_str}" if self.gauge else "wires"),
(" ", "shielded" if self.shield else None),
(", ", str(self.color) if self.color else None),
]
if self.is_bundle:
substrs += [
(f"\n\t{i}: ", w) for i, w in enumerate(self.wire_objects.values())
]
desc = "".join(
[f"{s[0]}{s[1]}" for s in substrs if s[1] is not None and s[1] != ""]
)
return desc
@property
def partnumbers(self):
if self.is_bundle:
return [w.partnumbers for w in self.wire_objects.values()]
else:
return super().partnumbers
@property
def bom_entry(self):
self.compute_qty_multipliers()
if self.is_bundle:
return [w.bom_entry for w in self.wire_objects.values()]
else:
return BomEntry(
qty=self.qty,
partnumbers=self.partnumbers,
id=self.id,
amount=self.amount,
qty_multiplier=self._qty_multiplier_computed,
description=str(self),
category=self.category,
designators=self.designators,
ignore_in_bom=self.ignore_in_bom,
)
@property
def is_bundle(self):
return self.category == BomCategory.BUNDLE
@property
def is_autogenerated(self):
return self.designator.startswith(AUTOGENERATED_PREFIX)
def __post_init__(self) -> None:
if isinstance(self.category, str) and self.category.lower() == "bundle":
self.category = BomCategory.BUNDLE
else:
self.category = BomCategory.CABLE
# TODO: style management should be separated from this logic...
self.bgcolor = SingleColor(self.bgcolor)
self.bgcolor_title = SingleColor(self.bgcolor_title)
self.color = MultiColor(self.color)
if isinstance(self.image, dict):
self.image = Image(**self.image)
# TODO:
# allow gauge, length, and other fields to be lists too (like part numbers),
# and assign them the same way to bundles.
self.gauge = NumberAndUnit.to_number_and_unit(self.gauge, "mm2")
self.length = NumberAndUnit.to_number_and_unit(self.length, "m")
self.amount = self.length # for BOM
if self.wirecount: # number of wires explicitly defined
if self.colors: # use custom color palette (partly or looped if needed)
self.colors = [
self.colors[i % len(self.colors)] for i in range(self.wirecount)
]
elif self.color_code:
# use standard color palette (partly or looped if needed)
if self.color_code not in COLOR_CODES:
raise Exception("Unknown color code")
self.colors = [
get_color_by_colorcode_index(self.color_code, i)
for i in range(self.wirecount)
]
elif self.color:
self.colors = [self.color[w] for w in range(self.wirecount)]
else: # no colors defined, add dummy colors
self.colors = [""] * self.wirecount
else: # wirecount implicit in length of color list
if not self.colors:
raise Exception(
"Unknown number of wires. "
"Must specify wirecount or colors (implicit length)"
)
self.wirecount = len(self.colors)
if self.wirelabels:
if self.shield and "s" in self.wirelabels:
raise Exception(
'"s" may not be used as a wire label for a shielded cable.'
)
# if lists of part numbers are provided,
# check this is a bundle and that it matches the wirecount.
for idfield in [self.manufacturer, self.mpn, self.supplier, self.spn, self.pn]:
if isinstance(idfield, list):
if self.is_bundle:
# check the length
if len(idfield) != self.wirecount:
raise Exception("lists of part data must match wirecount")
else:
raise Exception("lists of part data are only supported for bundles")
# all checks have passed
wire_tuples = zip_longest(
# TODO: self.wire_ids
self.colors,
self.wirelabels,
)
for wire_index, (wire_color, wire_label) in enumerate(wire_tuples):
id = wire_index + 1
color = MultiColor(wire_color)[wire_index]
by_idx = lambda x: x[wire_index] if isinstance(x, list) else x
pn = by_idx(self.pn)
manufacturer = by_idx(self.manufacturer)
mpn = by_idx(self.mpn)
supplier = by_idx(self.supplier)
spn = by_idx(self.spn)
self.wire_objects[id] = WireClass(
pn=pn,
manufacturer=manufacturer,
mpn=mpn,
supplier=supplier,
spn=spn,
parent=self.designator,
# wire-specific properties
index=wire_index, # TODO: wire_id
id=str(id), # TODO: wire_id
label=wire_label,
color=color,
# inheritable from parent cable
type=self.type,
subtype=self.subtype,
gauge=self.gauge,
length=self.length,
ignore_in_bom=self.ignore_in_bom,
)
if self.shield:
index_offset = len(self.wire_objects)
# TODO: add support for multiple shields
id = "s"
self.wire_objects[id] = ShieldClass(
index=index_offset,
id=id,
label="Shield",
color=MultiColor(self.shield)
if isinstance(self.shield, str)
else MultiColor(None),
parent=self.designator,
)
if self.show_name is None:
self.show_name = not self.is_autogenerated
for i, item in enumerate(self.additional_components):
if isinstance(item, dict):
self.additional_components[i] = Component(
**item, category=BomCategory.ADDITIONAL, parent=self.designator
)
def _connect(
self,
from_pin_obj: [PinClass],
via_wire_id: str,
to_pin_obj: [PinClass],
) -> None:
via_wire_obj = self.wire_objects[via_wire_id]
self._connections.append(Connection(from_pin_obj, via_wire_obj, to_pin_obj))
def compute_qty_multipliers(self):
# do not run before all connections in harness have been made!
total_length = sum(
[
wire.length.number if wire.length else 0
for wire in self.wire_objects.values()
]
)
qty_multipliers_computed = {
"WIRECOUNT": len(self.wire_objects),
"TERMINATIONS": 999, # TODO
"LENGTH": self.length.number if self.length else 0,
"TOTAL_LENGTH": total_length,
}
for subitem in self.additional_components:
if isinstance(subitem.qty_multiplier, QtyMultiplierCable):
computed_factor = qty_multipliers_computed[subitem.qty_multiplier.name]
# inherit component's length unit if appropriate
if subitem.qty_multiplier.name.upper() in ["LENGTH", "TOTAL_LENGTH"]:
if subitem.qty.unit is not None:
raise Exception(
f"No unit may be specified when using"
f"{subitem.qty_multiplier} as a multiplier"
)
subitem.qty = NumberAndUnit(subitem.qty.number, self.length.unit)
elif isinstance(subitem.qty_multiplier, QtyMultiplierConnector):
raise Exception("Used a connector multiplier in a cable!")
else: # int or float
computed_factor = subitem.qty_multiplier
subitem._qty_multiplier_computed = computed_factor
@dataclass
class Arrow:
direction: ArrowDirection
weight: ArrowWeight
@dataclass
class MatePin:
from_: PinClass
to: PinClass
arrow: Arrow
@dataclass
class MateComponent:
from_: str # Designator
to: str # Designator
arrow: Arrow