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from qolab.file_utils import save_table_with_header
import numpy as np
class Trace:
def __init__(self, label):
self.label = label
self.values = None
self.unit = None
self.tags = {}
def plot(self):
import matplotlib.pyplot as plt
plt.plot(self.values, label=self.descr)
plt.legend()
plt.grid()
def getHeader(self, prefix=''):
header = []
if self.label is not None:
header.append(f'label = {self.label}')
if self.unit is not None:
header.append(f'unit = {self.unit}')
for k, v in self.tags.items():
header.append(f'{k} = {v}')
prefixed_header = [prefix+l for l in header]
return prefixed_header
def save(self, fname, item_format='e', header=[]):
header.extend(self.getHeader())
save_table_with_header(fname, self.values, header, item_format=item_format)
class TraceXY:
def __init__(self, label):
self.label = label
self.tags = {}
self.x = None
self.y = None
def plot(self):
import matplotlib.pyplot as plt
plt.plot(self.x.values, self.y.values, label=self.label)
plt.legend()
plt.xlabel(self.x.label)
plt.grid()
def getHeader(self, prefix=''):
header = []
if self.label is not None:
header.append(f'label = {self.label}')
for k, v in self.tags.items():
header.append(f'{k} = {v}')
header.extend(self.x.getHeader(prefix='x_info: '))
header.extend(self.y.getHeader(prefix='y_info: '))
prefixed_header = [prefix+l for l in header]
return prefixed_header
def save(self, fname, item_format='e', header=[]):
data=np.concatenate((self.x.values, self.y.values), 1)
header.extend(self.getHeader())
save_table_with_header(fname, data, header, item_format=item_format)
class TraceSetSameX:
def __init__(self, label):
self.label = label
self.tags = {}
self.x = None
self.traces={}
def addTrace(self, tr):
if len(self.traces) == 0:
self.x = tr.x
trY = tr.y
self.traces[tr.label]=trY
def plot(self):
import matplotlib.pyplot as plt
nplots = len(self.traces.keys())
cnt=0
for k, tr in self.traces.items():
cnt+=1
if cnt == 1:
ax1=plt.subplot(nplots, 1, cnt)
else:
plt.subplot(nplots, 1, cnt, sharex=ax1)
plt.plot(self.x.values, tr.values, label=tr.label)
plt.xlabel(self.x.label)
plt.legend()
plt.grid()
def items(self):
return (self.traces.items())
def keys(self):
return (self.traces.keys())
def getTrace(self, label):
tr = TraceXY(label)
tr.x = self.x
tr.y = self.traces[label]
return (tr)
def getHeader(self, prefix=''):
header = []
if self.label is not None:
header.append(f'label = {self.label}')
for k, v in self.tags.items():
header.append(f'{k} = {v}')
header.extend(self.x.getHeader(prefix='x_info: '))
for k, v in self.traces.items():
header.extend(v.getHeader(prefix=f'{k}_info: '))
prefixed_header = [prefix+l for l in header]
return prefixed_header
def save(self, fname, item_format='e', header=[]):
data=self.x.values
for k,v in self.traces.items():
data=np.concatenate((data, v.values), 1)
header.extend(self.getHeader())
save_table_with_header(fname, data, header, item_format=item_format)
if __name__ == '__main__':
print("Testing trace")
x=Trace('x trace')
x.values = np.random.normal(2,2,(4,1))
x.values = np.array(x.values, int)
x.unit='s'
x.tags['x_tag'] = 'xxxx'
x.tags['x_tag2'] = 'xxxx'
x.save('xtrace.dat')
print(x.getHeader())
y=Trace('y trace')
y.values = np.random.normal(2,2,(4,1))
y.unit='V'
y.tags['y_tag'] = 'yyyy'
xy=TraceXY('xy trace')
xy.tags['xy tag']= 'I am xy tag'
xy.x = x
xy.y = y
xy.save('xytrace.dat')
print(xy.getHeader())
xyn = TraceSetSameX('many ys trace')
xyn.tags['descr'] = 'I am many ys trace'
xy.label='y1'
xyn.addTrace(xy)
xy.label='y2'
xyn.addTrace(xy)
xy.label='y3'
xyn.addTrace(xy)
xyn.save('xyntrace.dat')
print(xyn.getHeader())
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