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Update snp viewer to work with new Dash import scheme. Moved from Byt… #5

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Update snp viewer to work with new Dash import scheme. Moved from Byt… #5

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30 changes: 7 additions & 23 deletions viewer/viewer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,13 +11,13 @@
import re

import dash
import dash_table
import numpy as np
import matplotlib.pyplot as plt
import skrf as rf
import plotly.graph_objs as go
import dash_core_components as dcc
import dash_html_components as html
from dash import dcc
from dash import html
from dash import dash_table
from dash.dependencies import Input, Output, State
from dash.exceptions import PreventUpdate
from flask_caching import Cache
Expand All @@ -30,7 +30,7 @@
'https://codepen.io/chriddyp/pen/bWLwgP.css'
]

app = dash.Dash(__name__,external_stylesheets=external_stylesheets )
app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
server = app.server
app.config.suppress_callback_exceptions = True

Expand Down Expand Up @@ -251,25 +251,8 @@ def load_touchstone(content_string: str, filename: str) -> rf.Network:
A skrf Network object holding s-parameter data from the touchstone file.

"""
class dataIO(io.BytesIO):
"""Class used to trick skrf into thinking it is reading a file object."""
_filename: str

def __init__(self, data, filename):
super(dataIO, self).__init__(data)
self.name = filename

@property
def name(self):
"""Filename of SnP data."""
return self._name

@name.setter
def name(self, value):
assert isinstance(value, str)
self._name = value

data = dataIO(content_string, filename)
data = io.StringIO(content_string.decode('utf-8'))
data.name = filename
d = rf.Network()
d.read_touchstone(data)
return d
Expand Down Expand Up @@ -322,6 +305,7 @@ def update_s_output(list_of_contents, list_of_names, list_of_dates, uuid):
content_string.append(cs)
for c, n in zip(content_string, list_of_names):
decoded = base64.b64decode(c)

try:
data = load_touchstone(decoded, n)
except Exception as e:
Expand Down