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svg2json.py
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svg2json.py
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#!/usr/bin/env python3
"""
Copyright [2009-present] EMBL-European Bioinformatics Institute
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
import json
from xml.dom import minidom
import click
@click.command()
@click.argument("pdb_id")
@click.argument("filename")
@click.argument("output", type=click.File("w"))
def main(pdb_id, filename, output):
pdb, model, chain = pdb_id.split("_")
doc = minidom.parse(filename)
residues = []
prev = None
index = 0
width = float(doc.documentElement.getAttribute("width"))
height = float(doc.documentElement.getAttribute("height"))
for nt in doc.getElementsByTagName("text"):
if "numbering-label" in nt.getAttribute("class"):
continue
x2 = float(nt.getAttribute("x"))
y2 = float(nt.getAttribute("y"))
if prev is None:
prev = (x2 - 5, y2 - 5)
x1 = prev[0]
y1 = prev[1]
residues.append(
{
"resnum": index + 1,
"path": (x1, y1, x2, y2),
}
)
prev = (x2, y2)
index += 1
data = {
pdb: {model: {chain: {"rna_nucleotides": residues}}},
"dimensions": {"width": width, "height": height},
}
if not residues:
raise ValueError("Did not extract any coordinates")
json.dump(data, output)
if __name__ == "__main__":
main()