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42 lines
831 B
Python
42 lines
831 B
Python
import fwr
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"""
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Preplot importing functions.
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"""
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def from_file (file, realpath = None):
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"""
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Return a list of dicts, where each dict has the structure:
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{
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"line_name": <int>,
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"points": [
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{
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"line_name": <int>,
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"point_number": <int>,
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"easting": <float>,
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"northing": <float>
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},
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…
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]
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}
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On error, return a string describing the error condition.
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"""
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filepath = realpath or file["path"]
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records = fwr.from_file(filepath, file)
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if type(records) == str:
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# This is an error message
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return records
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lines = []
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line_names = set([r["line_name"] for r in records])
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for line_name in line_names:
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line = dict(line_name=line_name)
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line_points = [r for r in records if r["line_name"] == line_name]
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if line_points:
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line["points"] = line_points
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lines.append(line)
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return lines
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