def _delete_cells(self):
"""
Delete all selected elements in self.ba by:
- determining the indices of all selected cells in the P and Z arrays
- deleting elements with those indices
- equalizing the lengths of b and a array by appending the required
number of zeros.
When nothing is selected, delete the last row.
Finally, the QTableWidget is refreshed from self.ba.
"""
sel = qget_selected(self.tblCoeff)['sel'] # get indices of all selected cells
if not np.any(sel) and len(self.ba[0]) > 0:
self.ba[0] = np.delete(self.ba[0], -1)
self.ba[1] = np.delete(self.ba[1], -1)
else:
self.ba[0] = np.delete(self.ba[0], sel[0])
self.ba[1] = np.delete(self.ba[1], sel[1])
# test and equalize if b and a array have different lengths:
self._equalize_ba_length()
if len(self.ba[0]) < 2:
self._clear_table()
else:
self._refresh_table()
qstyle_widget(self.ui.butSave, 'changed')
def _delete_cells(self):
"""
Delete all selected elements in self.ba by:
- determining the indices of all selected cells in the P and Z arrays
- deleting elements with those indices
- equalizing the lengths of b and a array by appending the required
number of zeros.
When nothing is selected, delete the last row.
Finally, the QTableWidget is refreshed from self.ba.
"""
sel = qget_selected(self.tblCoeff)['sel'] # get indices of all selected cells
if not np.any(sel) and len(self.ba[0]) > 0:
self.ba[0] = np.delete(self.ba[0], -1)
self.ba[1] = np.delete(self.ba[1], -1)
else:
self.ba[0] = np.delete(self.ba[0], sel[0])
self.ba[1] = np.delete(self.ba[1], sel[1])
# test and equalize if b and a array have different lengths:
self._equalize_ba_length()
# if length is less than 2, clear the table: this ain't no filter!
if len(self.ba[0]) < 2:
self._clear_table() # sets 'changed' attribute
else:
self._refresh_table()
qstyle_widget(self.ui.butSave, 'changed')
def _set_coeffs_zero(self):
"""
Set all coefficients = 0 in self.ba with a magnitude less than eps
and refresh QTableWidget
"""
eps = float(self.ledSetEps.text())
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
test_val = 0. # value against which array is tested
targ_val = 0. # value which is set when condition is true
if not idx: # nothing selected, check whole table
b_0 = np.isclose(self.ba[0], test_val, rtol=0, atol=eps)
if np.any(
b_0): # found at least one coeff where condition was true
self.ba[0] = self.ba[0] * np.logical_not(b_0)
qstyle_widget(self.butSave, 'changed')
if fb.fil[0]['ft'] == 'IIR':
a_0 = np.isclose(self.ba[1], test_val, rtol=0, atol=eps)
if np.any(a_0):
self.ba[1] = self.ba[1] * np.logical_not(a_0)
qstyle_widget(self.butSave, 'changed')
else: # only check selected cells
changed = False
for i in idx:
if np.isclose(self.ba[i[0]][i[1]], test_val, rtol=0, atol=eps):
self.ba[i[0]][i[1]] = targ_val
changed = True
if changed:
# mark save button as changed
qstyle_widget(self.butSave, 'changed')
self._refresh_table()
def quant_coeffs(self):
"""
Quantize selected / all coefficients in self.ba and refresh QTableWidget
"""
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
if not idx: # nothing selected, quantize all elements
self.ba = self.myQ.fixp(self.ba, scaling='multdiv')
else:
for i in idx:
self.ba[i[0]][i[1]] = self.myQ.fixp(self.ba[i[0]][i[1]], scaling = 'multdiv')
qstyle_widget(self.ui.butSave, 'changed')
self._refresh_table()
def quant_coeffs(self):
"""
Quantize selected / all coefficients in self.ba and refresh QTableWidget
"""
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
if not idx: # nothing selected, quantize all elements
self.ba = self.myQ.fixp(self.ba, scaling='multdiv')
else:
for i in idx:
self.ba[i[0]][i[1]] = self.myQ.fixp(self.ba[i[0]][i[1]], scaling = 'multdiv')
qstyle_widget(self.ui.butSave, 'changed')
self._refresh_table()
def _set_coeffs_zero(self):
"""
Set all coefficients = 0 in self.ba with a magnitude less than eps
and refresh QTableWidget
"""
self._set_eps()
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
test_val = 0. # value against which array is tested
targ_val = 0. # value which is set when condition is true
changed = False
if not idx: # nothing selected, check whole table
b_close = np.logical_and(
np.isclose(self.ba[0], test_val, rtol=0, atol=self.ui.eps),
(self.ba[0] != targ_val))
if np.any(b_close
): # found at least one coeff where condition was true
self.ba[0] = np.where(b_close, targ_val, self.ba[0])
changed = True
if fb.fil[0]['ft'] == 'IIR':
a_close = np.logical_and(
np.isclose(self.ba[1], test_val, rtol=0, atol=self.ui.eps),
(self.ba[1] != targ_val))
if np.any(a_close):
self.ba[1] = np.where(a_close, targ_val, self.ba[1])
changed = True
else: # only check selected cells
for i in idx:
if np.logical_and(
np.isclose(self.ba[i[0]][i[1]],
test_val,
rtol=0,
atol=self.ui.eps),
(self.ba[i[0]][i[1]] != targ_val)):
self.ba[i[0]][i[1]] = targ_val
changed = True
if changed:
qstyle_widget(self.ui.butSave,
'changed') # mark save button as changed
self._refresh_table()
def quant_coeffs(self):
"""
Quantize selected / all coefficients in self.ba and refresh QTableWidget
"""
self._store_q_settings() # read comboboxes and store setting in filter dict
# always save quantized coefficients in fractional format
# -> change output format to 'float' before quantizing and storing in self.ba
self.myQ.frmt = 'float'
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
if not idx: # nothing selected, quantize all elements
self.ba = self.myQ.fixp(self.ba, scaling='div')
else:
for i in idx:
self.ba[i[0]][i[1]] = self.myQ.fixp(self.ba[i[0]][i[1]], scaling = 'div')
qstyle_widget(self.ui.butSave, 'changed')
self._refresh_table()
def quant_coeffs(self):
"""
Quantize selected / all coefficients in self.ba and refresh QTableWidget
"""
self._store_q_settings(
) # read comboboxes and store setting in filter dict
# always save quantized coefficients in fractional format
# -> change output format to 'float' before quantizing and storing in self.ba
self.myQ.frmt = 'float'
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
if not idx: # nothing selected, quantize all elements
self.ba = self.myQ.fix(self.ba, to_float=True)
else:
for i in idx:
self.ba[i[0]][i[1]] = self.myQ.fix(self.ba[i[0]][i[1]],
to_float=True)
qstyle_widget(self.butSave, 'changed')
self._refresh_table()
def _add_cells(self):
"""
Add the number of selected rows to self.ba and fill new cells with
zeros from the bottom. If nothing is selected, add one row at the bottom.
Refresh QTableWidget.
"""
# get indices of all selected cells
sel = qget_selected(self.tblCoeff)['sel']
if not np.any(sel):
sel[0] = [len(self.ba[0])]
sel[1] = [len(self.ba[1])]
self.ba[0] = np.insert(self.ba[0], sel[0], 0)
self.ba[1] = np.insert(self.ba[1], sel[1], 0)
# insert 'sel' contiguous rows before 'row':
# self.ba[0] = np.insert(self.ba[0], row, np.zeros(sel))
self._equalize_ba_length()
self._refresh_table()
def _add_cells(self):
"""
Add the number of selected rows to self.ba and fill new cells with
zeros from the bottom. If nothing is selected, add one row at the bottom.
Refresh QTableWidget.
"""
# get indices of all selected cells
sel = qget_selected(self.tblCoeff)['sel']
if not np.any(sel):
sel[0] = [len(self.ba[0])]
sel[1] = [len(self.ba[1])]
self.ba[0] = np.insert(self.ba[0], sel[0], 0)
self.ba[1] = np.insert(self.ba[1], sel[1], 0)
# insert 'sel' contiguous rows before 'row':
# self.ba[0] = np.insert(self.ba[0], row, np.zeros(sel))
self._equalize_ba_length()
self._refresh_table()
def _add_cells(self):
"""
Add the number of selected rows to self.ba and fill new cells with
zeros from the bottom. If nothing is selected, add one row at the bottom.
Refresh QTableWidget.
"""
# get indices of all selected cells
sel = qget_selected(self.tblCoeff)['sel']
if not np.any(sel): # nothing selected, append zeros to table
np.append(self.ba[0], 0)
np.append(self.ba[1], 0)
else:
self.ba[0] = np.insert(self.ba[0], sel[0], 0)
self.ba[1] = np.insert(self.ba[1], sel[1], 0)
# insert 'sel' contiguous rows before 'row':
# self.ba[0] = np.insert(self.ba[0], row, np.zeros(sel))
self._equalize_ba_length()
self._refresh_table()
# don't tag as 'changed' when only zeros have been added at the end
if np.any(sel):
qstyle_widget(self.ui.butSave, 'changed')
def _set_coeffs_zero(self):
"""
Set all coefficients = 0 in self.ba with a magnitude less than eps
and refresh QTableWidget
"""
self._set_eps()
idx = qget_selected(self.tblCoeff)['idx'] # get all selected indices
test_val = 0. # value against which array is tested
targ_val = 0. # value which is set when condition is true
changed = False
if not idx: # nothing selected, check whole table
b_close = np.logical_and(np.isclose(self.ba[0], test_val, rtol=0, atol=self.ui.eps),
(self.ba[0] != targ_val))
if np.any(b_close): # found at least one coeff where condition was true
self.ba[0] = np.where(b_close, targ_val, self.ba[0])
changed = True
if fb.fil[0]['ft'] == 'IIR':
a_close = np.logical_and(np.isclose(self.ba[1], test_val, rtol=0, atol=self.ui.eps),
(self.ba[1] != targ_val))
if np.any(a_close):
self.ba[1] = np.where(a_close, targ_val, self.ba[1])
changed = True
else: # only check selected cells
for i in idx:
if np.logical_and(np.isclose(self.ba[i[0]][i[1]], test_val, rtol=0, atol=self.ui.eps),
(self.ba[i[0]][i[1]] != targ_val)):
self.ba[i[0]][i[1]] = targ_val
changed = True
if changed:
qstyle_widget(self.ui.butSave, 'changed') # mark save button as changed
self._refresh_table()
def _add_cells(self):
"""
Add the number of selected rows to self.ba and fill new cells with
zeros from the bottom. If nothing is selected, add one row at the bottom.
Refresh QTableWidget.
"""
# get indices of all selected cells
sel = qget_selected(self.tblCoeff)['sel']
if not np.any(sel): # nothing selected, append zeros to table
self.ba[0] = np.append(self.ba[0], 0)
self.ba[1] = np.append(self.ba[1], 0)
else:
self.ba[0] = np.insert(self.ba[0], sel[0], 0)
self.ba[1] = np.insert(self.ba[1], sel[1], 0)
# insert 'sel' contiguous rows before 'row':
# self.ba[0] = np.insert(self.ba[0], row, np.zeros(sel))
self._equalize_ba_length()
self._refresh_table()
# don't tag as 'changed' when only zeros have been added at the end
if np.any(sel):
qstyle_widget(self.ui.butSave, 'changed')
