Source code for ansys.dyna.core.lib.card_set

# Copyright (C) 2021 - 2024 ANSYS, Inc. and/or its affiliates.
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"""Set of cards that act as one card.

It is a generic card, so it needs to be given a type as an argument.
That type is used for each card, and behaves like a keyword.
"""

import typing

from ansys.dyna.core.lib.card_interface import CardInterface
from ansys.dyna.core.lib.cards import Cards
from ansys.dyna.core.lib.format_type import format_type
from ansys.dyna.core.lib.io_utils import write_or_return
from ansys.dyna.core.lib.kwd_line_formatter import at_end_of_keyword
from ansys.dyna.core.lib.option_card import OptionSpec


[docs] class CardSet(CardInterface): def __init__( self, set_type: type, length_func: typing.Callable = None, active_func: typing.Callable = None, option_specs: typing.List[OptionSpec] = None, **kwargs, ): self._set_type = set_type self._items: typing.List[Cards] = list() self._format_type: format_type = kwargs.get("format", format_type.default) self._length_func = length_func self._active_func = active_func self._bounded = length_func != None self._parent = kwargs.get("parent", None) self._keyword = kwargs.get("keyword", None) if option_specs == None: option_specs = [] self._option_specs = option_specs self._initialized: bool = False @property def _items(self) -> typing.List[Cards]: return self._base_items @_items.setter def _items(self, value: typing.List[Cards]) -> None: self._base_items = value def _initialize(self): if self._initialized: return if self._bounded and self._active: self._initialize_data(self._length_func()) self._initialized = True
[docs] def initialize(self): self._initialize()
@property
[docs] def option_specs(self): return self._option_specs
@property def _active(self) -> bool: if self._active_func == None: return True return self._active_func() def _initialize_data(self, num_items: int) -> None: for _ in range(num_items): self.add_item() def _add_item_simple(self) -> int: self._items.append(self._set_type(parent=self._parent, keyword=self._keyword))
[docs] def add_item(self, **kwargs) -> int: """Add a card to the set. Return the index of the added card.""" self._items.append(self._set_type(**kwargs, parent=self._parent, keyword=self._keyword)) return len(self._items) - 1
[docs] def items(self) -> typing.List[Cards]: if not self._initialized: self._initialize() return self._items
@property
[docs] def bounded(self) -> bool: return self._bounded
@property
[docs] def format(self) -> format_type: """Get the card format type.""" return self._format_type
@format.setter def format(self, value: format_type) -> None: """Set the card format type.""" self._format_type = value
[docs] def write( self, format: typing.Optional[format_type] = None, buf: typing.Optional[typing.TextIO] = None, comment: typing.Optional[bool] = True, ) -> typing.Union[str, None]: """Renders the card in the dyna keyword format. :param buf: Buffer to write to. If None, the output is returned as a string :param format: format_type to use. Default to standard. """ def _write(buf: typing.TextIO): for item_index, item in enumerate([item for item in self._items]): write_comment = comment and item_index == 0 if item_index != 0: buf.write("\n") item.write(buf, format, write_comment) return write_or_return(buf, _write)
def _read_item_cards(self, buf: typing.TextIO, index: int) -> bool: item = self._items[index] for card in item._get_all_cards(): ret = card.read(buf) if ret: # according to the card, we are at the end of the keyword, so # we can break out of the card reading loop. return True return False def _load_bounded_from_buffer(self, buf: typing.TextIO) -> None: length = self._length_func() for index in range(length): if self._read_item_cards(buf, index): break def _load_unbounded_from_buffer(self, buf: typing.TextIO) -> None: index = -1 while True: self._add_item_simple() index += 1 self._read_item_cards(buf, index) if at_end_of_keyword(buf): # the buffer is at the end of the keyword, exit return
[docs] def read(self, buf: typing.TextIO) -> bool: self._initialize() if self.bounded: self._load_bounded_from_buffer(buf) return False else: self._load_unbounded_from_buffer(buf) return True