81 lines
2.4 KiB
Python
81 lines
2.4 KiB
Python
from datetime import datetime
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from .elements import SRef
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from .reader import ProgressGetter
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class Library(object):
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def __init__(self):
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self.version = 0
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self.name = "NONAME"
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self.last_access = datetime.now()
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self.last_mod = datetime.now()
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# unit setup
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self.units_per_dbunit = 1
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self.meters_per_unit = 1
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self.structures = {}
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class LinkError(Exception):
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element = None
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pass
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"""
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normalizes given coordinate according to library units
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"""
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def normalize_coord(self, coord, to_meters=False):
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fact = self.units_per_dbunit
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if to_meters:
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fact *= self.meters_per_unit
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return (coord[0] * fact, coord[1] * fact)
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def link_refs(self, root, progress_callback=None):
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for ref in root.references:
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if isinstance(ref.structure, str):
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try:
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element.structure = self.structures[ref.structure]
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except KeyError:
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err = LinkError("dangeling sref (structure {} is not defined in library)".format(ref.structure))
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err.element = root
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raise err
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return root
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def link_all_refs(self, progress_callback=None):
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class Progress(ProgressGetter):
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total = 0
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current = 0
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def __init__(self, lib):
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for key, value in lib.structures.items():
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self.total += len(value.references)
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def progress(self):
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return float(self.current) / self.total
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def inc(self):
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self.current += 1
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count = Progress(self)
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for key, value in self.structures.items():
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for element in value.references:
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if isinstance(element.structure, str):
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# try to resolve link
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try:
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ref = self.structures[element.structure]
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element.structure = ref
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except KeyError:
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err = LinkError("dangeling sref (structure {} is not defined in library)".format(element.structure))
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err.element = element
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raise err
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count.inc()
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if progress_callback:
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progress_callback(count)
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