bdf_card Module¶
Defines the BDFCard class that is passed into the various Nastran cards.
-
class
pyNastran.bdf.bdf_interface.bdf_card.BDFCard(card: List[str], has_none: bool = True)[source]¶ Bases:
objectA BDFCard is a list that has a default value of None for fields out of range.
- Parameters
- cardList[str]
the split values for the card
- has_nonebool; default=True
helps with a special case to speed up runtime
- # definitely bad
- card = [‘GRID’, ‘1’, ‘’, ‘1.0’, ‘2.0’, ‘3.0’]
- BDFCard(card, has_none=False)
- # definitely correct
- card = [‘GRID’, ‘1’, None, ‘1.0’, ‘2.0’, ‘3.0’]
- BDFCard(card, has_none=True)
- # ???
- card = [‘GRID’, ‘1’, ‘’, 1.0, 2.0, 3.0]
- BDFCard(card, has_none=True)
-
field(i: int, default: Union[int, float, str, None] = None) → Union[int, float, str, None][source]¶ Gets the ith field on the card
- Parameters
- iint
the ith field on the card (following list notation)
- defaultint/float/str/None
the default value for the field
- Returns
- valueint/float/str/None
the value on the ith field
-
fields(i: int = 0, j: Optional[int] = None, defaults: Any = None) → List[Any][source]¶ Gets multiple fields on the card
- Parameters
- iint > 0
the ith field on the card (following list notation)
- jint / None
int : the jth field on the card None : last field on the card
- defaultsList[int/float/str]
the default value for the field (as a list) len(defaults)=i-j-1
- Returns
- valuesList[varies]
int/float/str the values on the ith-jth fields