def showCoeffs(self):
"""
Create table from filter coeff dict
"""
coeffs = fb.fil[0]['ba']
self.tblCoeff.setVisible(self.chkCoeffList.isChecked())
self.tblCoeff.setRowCount(max(np.shape(coeffs)))
self.tblCoeff.setColumnCount(2)
if self.DEBUG:
print("=====================\nInputCoeffs.showCoeffs")
print("Coeffs:\n",coeffs)
print ("shape", np.shape(coeffs))
print ("len", len(coeffs))
print("ndim", np.ndim(coeffs))
self.tblCoeff.setHorizontalHeaderLabels(["b", "a"])
for col in range(2):
for row in range(np.shape(coeffs)[1]):
item = self.tblCoeff.item(row, col)
# copy content of zpk to corresponding table field, rounding
# as specified and removing the brackets of complex arguments
if item:
item.setText(str(cround(coeffs[col][row])).strip('()'))
else:
self.tblCoeff.setItem(row,col,QtGui.QTableWidgetItem(
str(cround(coeffs[col][row])).strip('()')))
self.tblCoeff.resizeColumnsToContents()
self.tblCoeff.resizeRowsToContents()
def load_entries(self):
"""
Update all entries from filter dict,
create table from filter zpk dict, overwriting all previous entries.
"""
if fb.fil[0]['ft'] == 'FIR':
self.cmbFilterType.setCurrentIndex(0) # set to "FIR"
else:
self.cmbFilterType.setCurrentIndex(1) # set to "IIR"
zpk = fb.fil[0]['zpk']
n_digits = int(self.spnRound.text())
self.ledGain.setVisible(self.chkPZList.isChecked())
self.lblGain.setVisible(self.chkPZList.isChecked())
self.tblPZ.setVisible(self.chkPZList.isChecked())
if self.chkNorm.isChecked():
[w, H] = freqz(fb.fil[0]['ba'][0], fb.fil[0]['ba'][1]) # (bb, aa)
self.Hmax_last = max(abs(H)) # store current max. filter gain
if not np.isfinite(self.Hmax_last) or self.Hmax_last > 1e4:
self.Hmax_last = 1.
if not np.isfinite(zpk[2]):
zpk[2] = 1.
self.ledGain.setText(str(cround(zpk[2], n_digits)))
self.tblPZ.setVisible(self.chkPZList.isChecked())
self.tblPZ.setRowCount(max(len(zpk[0]), len(zpk[1])))
logger.debug("load_entries - pz:\n"
"Shape = %s\n"
"Len = %d\n"
"NDim = %d\n\n"
"ZPK = %s" %
(np.shape(zpk), len(zpk), np.ndim(zpk), pformat(zpk)))
self.tblPZ.setColumnCount(2)
self.tblPZ.setHorizontalHeaderLabels(["Z", "P"])
for col in range(2):
for row in range(len(zpk[col])):
logger.debug("Len Row = %d" % len(zpk[col]))
item = self.tblPZ.item(row, col)
# copy content of zpk to corresponding table field, rounding
# as specified and removing the brackets of complex arguments
if item: # does item exist?
item.setText(
str(cround(zpk[col][row], n_digits)).strip('()'))
else: # no construct it
self.tblPZ.setItem(
row, col,
QTableWidgetItem(
str(cround(zpk[col][row], n_digits)).strip('()')))
self.tblPZ.resizeColumnsToContents()
self.tblPZ.resizeRowsToContents()
def load_entries(self):
"""
Create table from filter coeff dict
"""
coeffs = fb.fil[0]['ba']
num_rows = max(np.shape(coeffs))
q_coeff = fb.fil[0]['q_coeff']
self.ledQuantI.setText(str(q_coeff['QI']))
self.ledQuantF.setText(str(q_coeff['QF']))
self.cmbQQuant.setCurrentIndex(
self.cmbQQuant.findText(q_coeff['quant']))
self.cmbQOvfl.setCurrentIndex(self.cmbQOvfl.findText(q_coeff['ovfl']))
# check whether filter is FIR and only needs one column
if fb.fil[0]['ft'] == 'FIR': # and np.all(fb.fil[0]['zpk'][1]) == 0:
num_cols = 1
self.tblCoeff.setColumnCount(1)
self.tblCoeff.setHorizontalHeaderLabels(["b"])
self.cmbFilterType.setCurrentIndex(0) # set to "FIR"
else:
num_cols = 2
self.tblCoeff.setColumnCount(2)
self.tblCoeff.setHorizontalHeaderLabels(["b", "a"])
self.cmbFilterType.setCurrentIndex(1) # set to "IIR"
self.tblCoeff.setVisible(self.chkCoeffList.isChecked())
self.tblCoeff.setRowCount(num_rows)
self.tblCoeff.setColumnCount(num_cols)
# create index strings for column 0, starting with 0
idx_str = [str(n) for n in range(num_rows)]
self.tblCoeff.setVerticalHeaderLabels(idx_str)
logger.debug(
"load_entries - coeffs:\n"
"Shape = %s\n"
"Len = %d\n"
"NDim = %d\n\n"
"Coeffs = %s" %
(np.shape(coeffs), len(coeffs), np.ndim(coeffs), pformat(coeffs)))
for col in range(num_cols):
for row in range(np.shape(coeffs)[1]):
item = self.tblCoeff.item(row, col)
# copy content of zpk to corresponding table field, rounding
# as specified and removing the brackets of complex arguments
if item:
item.setText(str(cround(coeffs[col][row])).strip('()'))
else:
self.tblCoeff.setItem(
row, col,
QTableWidgetItem(
str(cround(coeffs[col][row])).strip('()')))
self.tblCoeff.resizeColumnsToContents()
self.tblCoeff.resizeRowsToContents()
def load_entries(self):
"""
Create table from filter zpk dict, overwriting all previous entries.
"""
zpk = fb.fil[0]['zpk']
n_digits = int(self.spnRound.text())
self.ledGain.setVisible(self.chkPZList.isChecked())
self.lblGain.setVisible(self.chkPZList.isChecked())
self.tblPZ.setVisible(self.chkPZList.isChecked())
if self.chkNorm.isChecked():
[w, H] = freqz(fb.fil[0]['ba'][0], fb.fil[0]['ba'][1]) # (bb, aa)
self.Hmax_last = max(abs(H)) # store current max. filter gain
if not np.isfinite(self.Hmax_last) or self.Hmax_last > 1e4:
self.Hmax_last = 1.
if not np.isfinite(zpk[2]):
zpk[2] = 1.
self.ledGain.setText(str(cround(zpk[2], n_digits)))
self.tblPZ.setVisible(self.chkPZList.isChecked())
self.tblPZ.setRowCount(max(len(zpk[0]), len(zpk[1])))
if self.DEBUG:
print("=====================\nInputPZ.load_entries")
print("ZPK:\n", zpk)
print("shape", np.shape(zpk))
print("len", len(zpk))
print("ndim", np.ndim(zpk))
self.tblPZ.setColumnCount(2)
self.tblPZ.setHorizontalHeaderLabels(["Z", "P"])
for col in range(2):
for row in range(len(zpk[col])):
logger.debug("Len Row = %d" % len(zpk[col]))
item = self.tblPZ.item(row, col)
# copy content of zpk to corresponding table field, rounding
# as specified and removing the brackets of complex arguments
if item: # does item exist?
item.setText(
str(cround(zpk[col][row], n_digits)).strip('()'))
else: # no construct it
self.tblPZ.setItem(
row, col,
QtGui.QTableWidgetItem(
str(cround(zpk[col][row], n_digits)).strip('()')))
self.tblPZ.resizeColumnsToContents()
self.tblPZ.resizeRowsToContents()
def showZPK(self):
"""
Create table from filter zpk dict, overwriting all previous entries.
"""
zpk = fb.fil[0]['zpk']
n_digits = int(self.spnRound.text())
self.ledGain.setVisible(self.chkPZList.isChecked())
self.lblGain.setVisible(self.chkPZList.isChecked())
self.tblPZ.setVisible(self.chkPZList.isChecked())
if self.chkNorm.isChecked():
[w, H] = freqz(fb.fil[0]['ba'][0], fb.fil[0]['ba'][1]) # (bb, aa)
self.Hmax_last = max(abs(H)) # store current max. filter gain
self.ledGain.setText(str(cround(zpk[2], n_digits)))
self.tblPZ.setVisible(self.chkPZList.isChecked())
self.tblPZ.setRowCount(max(len(zpk[0]),len(zpk[1])))
if self.DEBUG:
print("=====================\nInputPZ.showZPK")
print("ZPK:\n",zpk)
print ("shape", np.shape(zpk))
print ("len", len(zpk))
print("ndim", np.ndim(zpk))
self.tblPZ.setColumnCount(2)
self.tblPZ.setHorizontalHeaderLabels(["Z", "P"])
for col in range(2):
for row in range(len(zpk[col])):
if self.DEBUG: print("Len Row:", len(zpk[col]))
item = self.tblPZ.item(row, col)
# copy content of zpk to corresponding table field, rounding
# as specified and removing the brackets of complex arguments
if item: # does item exist?
item.setText(str(cround(zpk[col][row], n_digits)).strip('()'))
else: # no construct it
self.tblPZ.setItem(row,col,QtGui.QTableWidgetItem(
str(cround(zpk[col][row], n_digits)).strip('()')))
self.tblPZ.resizeColumnsToContents()
self.tblPZ.resizeRowsToContents()
