What's Changed

• bug fix to event_lib.py by @tblazey in #111
• sequence.py fix by @tblazey in #110
• latest make_sinc_pulse dont return gradient by default by @yupbank in #113
• Replace np.float with np.float64 by @btasdelen in #115
• Update gre_walkthrough for v1.4.0 by @btasdelen in #121
• Bug fixes that produced incorrect test reports by @FrankZijlstra in #125
• Hacky fix for waveforms_and_times rf append floating point issue. by @btasdelen in #114
• Bug fixes in Sequence and make_trapezoid by @FrankZijlstra in #128
• More pythonic handling of shape_pieces in waveforms_and_times by @FrankZijlstra in #130
• Several bug fixes in Sequence, add_gradients, make_trapezoid, and rotate by @FrankZijlstra in #132
• Added PNS calculations by @FrankZijlstra in #131
• change sigpy dependency to GitHub repo by @schuenke in #135
• Performance improvements by @FrankZijlstra in #133
• Add init,py to utils to help setuptools discover the package by @fzimmermann89 in #137
• Reworked piecewise polynomial implementation in Sequence to use scipy's PPoly by @FrankZijlstra in #140
• Enh: New options in make_arbitrary_rf.py for adiabatic pulses by @wtclarke in #143
• Enh: Enable GitHub CI by @wtclarke in #142
• Bump sigpy version to 0.1.26 by @Andrew-Dupuis in #148
• BF: make_trapezoid with amplitude + duration as inputs. by @wtclarke in #146
• BF: Minor bug fixes in sequence.py and make_gauss_pulse.py by @wtclarke in #147
• BF: Refine argument options for make_block_pulse by @wtclarke in #151
• Fix BlockDurationRaster being ignored in read_seq.py by @gabuzi in #157
• Update confusing documentation for calc_duration.py by @gabuzi in #158
• Fixed set_block to give errors when multiple events of the same type are specified by @FrankZijlstra in #141
• Various bug fixes, features, and cleanups by @FrankZijlstra in #159
• Fixed read_seq for reading v1.3.1 sequence files by @FrankZijlstra in #162
• Feature: evaluate_labels function in Sequence by @FrankZijlstra in #164
• A few small bugfixes by @FrankZijlstra in #165
• Bug fixes in make_extended_trapezoid and add_gradients by @FrankZijlstra in #167
• Added gradient spectrum calculations by @FrankZijlstra in #170
• Fix make_extended_trapezoid area by @schuenke in #171
• Added functionality to remove duplicate events by @FrankZijlstra in #178
• Add continous deployment (CD) workflow by @schuenke in #173
• remove_duplicates() without in_place = True causes signature_value to be not updated after write. by @btasdelen in #179
• feat: add TRID label (GE interpreter). by @mcencini in #180
• Changed get_gradients to actually use extrapolation in the piecewise polynomial by @FrankZijlstra in #181
• Release 1.4.2 by @schuenke in #177

New Contributors

• @tblazey made their first contribution in #111
• @yupbank made their first contribution in #113
• @FrankZijlstra made their first contribution in #125
• @fzimmermann89 made their first contribution in #137
• @wtclarke made their first contribution in #143
• @Andrew-Dupuis made their first contribution in #148
• @gabuzi made their first contribution in #157
• @mcencini made their first contribution in #180

Full Changelog: 1.4.0...v1.4.2

What's Changed

• Release 1.3.1post1 by @sravan953 in #50
• Typo fix & fix return syntax by @mavel101 in #56
• Integrating sigpy rf with pypulseq by @sairamgeethanath in #58
• Version 2.0 of sigpy2pulseq by @sairamgeethanath in #60
• Fix a bug, that returns the wrong trigger channel in get_block by @mavel101 in #67
• Create export_waveforms.py by @tonggehua in #62
• Fix missing install module for version.py by @bilal-tasdelen in #74
• Fix the magnitude slew rate calculation in the report. by @bilal-tasdelen in #75
• Fix time unit not displaying correctly, and add gradient unit selection. by @bilal-tasdelen in #76
• Fix missing paranthesis at per axis slew rate calc. by @bilal-tasdelen in #80
• Fix incorrect array creation at waveform_and_gradients(). by @bilal-tasdelen in #79
• Add missing paranthesis in get_block() for arb grad times. by @bilal-tasdelen in #78
• Gradient waveforms fix by @bilal-tasdelen in #84
• [Feature Suggestion] Option to call plt.show() later for plotting. by @bilal-tasdelen in #81
• Fix side effects of using numpy.round by @bilal-tasdelen in #87
• Cast times and amplitude inputs to np array in case they are supplied as list. by @bilal-tasdelen in #88
• Add missing shape_dur property to arbitrary RF. by @bilal-tasdelen in #90
• Add missing input set case for trapezoids. by @bilal-tasdelen in #86
• waveforms_and_times append RF fixes by @bilal-tasdelen in #93
• Rf fixes by @bilal-tasdelen in #92
• Fix rounding bug in indexing. by @bilal-tasdelen in #99
• np.int is deprecated in numpy>=1.20.0 by @skarrea in #100
• Fix bug in example jupyter notebook. by @nnmurthy in #103
• fix calculation of bandwidth of adiabatic hypsec pulse by @schuenke in #83

New Contributors

• @sairamgeethanath made their first contribution in #58
• @bilal-tasdelen made their first contribution in #74
• @skarrea made their first contribution in #100
• @nnmurthy made their first contribution in #103

Full Changelog: 1.3.1...1.4.0

Merges #50

✨Additions and 🔨 changes:

• Add method to avoid Banker's rounding. Example usage:

import pypulseq as pp

pp.round_half_up(n)

• Support non-int revision numbers (future releases compat.)

🐛 Fixes:

• #45
• #46
• #47
• #48
• #49
• Fix default value for area in make_trap_pulse()
• Fix ro_asymmetry in write_ute.py

⚠ Known issues:

• Piecewise polynomial calculation of k-space is not implemented

Merges #44

✨ Additions and 🔨 major changes:

• Match Pulseq 1.3.1
• Fix multiple bugs
• Add make_digital_output_pulse.py
• Add make_extended_trapezoid_area.py
• Add make_label.py
• Add/update multiple example sequences: EPI, EPI Spin Echo, EPI Spin Echo with ramp sampling, GRE, GRE with label, HASTE, TSE, UTE
• Rename make_trig.py to make_trigger.py
• Default value for return_gz is now False for make_sinc_pulse(), make_block_pulse(), make_gauss_pulse(), make_arbitrary_rf(),

🔨 Minor changes:

• Add Python type hints
• Update docstrings throughout the project
• Update docs

🐛 Fixes:

• #42
• #36
• #35

⚠ Known issues:

• Piecewise polynomial calculation of k-space is not implemented

Changes:

• np.float32 compatibility in compress_shape to support longer sequences

Fixes:

• #37

Changes:

• Read JEMRIS-generated .seq files

Fixes:

• #32
• #28
• #27
• #26
• #25
• #22
• #18
• #6

Merges #30

Changes:

• Minor refactoring
• Add boolean flag to save sequence plots

Fixes:

• Fix overall package imports

Leveraged in virtual-scanner.