How to use create_segment method in tempest
Best Python code snippet using tempest_python
track_ui_test.py
Source:track_ui_test.py 
...45 **kwargs)46 async def test_segments_changed(self):47 with self._trackItem():48 with self.project.apply_mutations('test'):49 seg = self.track.create_segment(MT(3, 4), MD(2, 4))50 await self.processQtEvents()51 self.renderWidget()52 with self.project.apply_mutations('test'):53 self.track.remove_segment(seg)54 await self.processQtEvents()55 self.renderWidget()56 async def test_events_changed(self):57 with self.project.apply_mutations('test'):58 seg = self.track.create_segment(MT(0, 4), MD(4, 4))59 seg.segment.add_event(MEVT(MT(0, 4), NOTE_ON(0, 60, 100)))60 seg.segment.add_event(MEVT(MT(1, 4), NOTE_OFF(0, 60)))61 with self._trackItem():62 with self.project.apply_mutations('test'):63 seg.segment.add_event(MEVT(MT(1, 4), NOTE_ON(0, 61, 100)))64 seg.segment.add_event(MEVT(MT(2, 4), NOTE_OFF(0, 61)))65 await self.processQtEvents()66 self.renderWidget()67 with self.project.apply_mutations('test'):68 while len(seg.segment.events) > 0:69 seg.segment.remove_event(seg.segment.events[0])70 await self.processQtEvents()71 self.renderWidget()72 async def test_events_edited(self):73 with self.project.apply_mutations('test'):74 seg = self.track.create_segment(MT(0, 4), MD(4, 4))75 seg.segment.add_event(MEVT(MT(0, 4), NOTE_ON(0, 60, 100)))76 seg.segment.add_event(MEVT(MT(1, 4), NOTE_OFF(0, 60)))77 with self._trackItem() as ti:78 editor = ti.findChild(track_ui.SegmentEditor, 'segment-editor[%016x]' % seg.id)79 assert editor is not None80 grid = editor.findChild(pianoroll.PianoRollGrid, 'grid')81 assert grid is not None82 with grid.collect_mutations():83 grid.addEvent(MEVT(MT(1, 4), NOTE_ON(0, 61, 100)))84 grid.addEvent(MEVT(MT(2, 4), NOTE_OFF(0, 61)))85 await self.processQtEvents()86 self.renderWidget()87 self.assertEqual(len(seg.segment.events), 4)88 async def test_scroll(self):89 with self.project.apply_mutations('test'):90 self.track.create_segment(MT(0, 4), MD(2, 4))91 with self._trackItem() as ti:92 yoff = ti.yOffset()93 await self.scrollWheel(-1)94 self.assertGreater(ti.yOffset(), yoff)95 await self.scrollWheel(1)96 self.assertEqual(ti.yOffset(), yoff)97 async def test_playback_pos(self):98 with self.project.apply_mutations('test'):99 self.track.create_segment(MT(0, 4), MD(2, 4))100 self.track.create_segment(MT(3, 4), MD(2, 4))101 self.track.create_segment(MT(5, 4), MD(2, 4))102 with self._trackItem() as ti:103 t = MT(0, 1)104 while t < MT(8, 4):105 ti.setPlaybackPosition(t)106 await self.processQtEvents()107 t += MD(1, 32)108 async def test_change_row_height(self):109 with self.project.apply_mutations('test'):110 self.track.create_segment(MT(0, 4), MD(4, 4))111 with self._trackItem() as ti:112 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(2, 4)), ti.height() // 2))113 menu = await self.openContextMenu()114 incr_button = menu.findChild(QtWidgets.QAbstractButton, 'incr-row-height')115 assert incr_button is not None116 decr_button = menu.findChild(QtWidgets.QAbstractButton, 'decr-row-height')117 assert decr_button is not None118 h = ti.gridYSize()119 incr_button.click()120 self.assertGreater(ti.gridYSize(), h)121 decr_button.click()122 self.assertEqual(ti.gridYSize(), h)123 async def test_move_segment(self):124 with self.project.apply_mutations('test'):125 seg = self.track.create_segment(MT(0, 4), MD(4, 4))126 with self._trackItem() as ti:127 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(1, 4)), ti.height() // 2))128 await self.pressMouseButton(Qt.LeftButton)129 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(3, 4)), ti.height() // 2))130 await self.releaseMouseButton(Qt.LeftButton)131 self.assertEqual(seg.time, MT(2, 4))132 async def test_resize_segment(self):133 with self.project.apply_mutations('test'):134 seg = self.track.create_segment(MT(0, 4), MD(4, 4))135 with self._trackItem() as ti:136 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(4, 4)), ti.height() // 2))137 await self.pressMouseButton(Qt.LeftButton)138 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(5, 4)), ti.height() // 2))139 await self.releaseMouseButton(Qt.LeftButton)140 self.assertEqual(seg.time, MT(0, 4))141 self.assertEqual(seg.segment.duration, MD(5, 4))142 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(0, 4)), ti.height() // 2))143 await self.pressMouseButton(Qt.LeftButton)144 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(2, 4)), ti.height() // 2))145 await self.releaseMouseButton(Qt.LeftButton)146 self.assertEqual(seg.time, MT(2, 4))147 self.assertEqual(seg.segment.duration, MD(3, 4))148 async def test_add_segment(self):149 assert len(self.track.segments) == 0150 with self._trackItem() as ti:151 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(2, 4)), ti.height() // 2))152 menu = await self.openContextMenu()153 await self.triggerMenuAction(menu, 'add-segment')154 self.assertEqual(len(self.track.segments), 1)155 self.assertEqual(self.track.segments[0].time, MT(2, 4))156 async def test_delete_segment(self):157 with self.project.apply_mutations('test'):158 self.track.create_segment(MT(0, 4), MD(4, 4))159 with self._trackItem() as ti:160 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(2, 4)), ti.height() // 2))161 menu = await self.openContextMenu()162 await self.triggerMenuAction(menu, 'delete-segment')163 self.assertEqual(len(self.track.segments), 0)164 async def test_split_segment(self):165 with self.project.apply_mutations('test'):166 self.track.create_segment(MT(0, 4), MD(4, 4))167 with self._trackItem() as ti:168 ti.setPlaybackPosition(MT(3, 4))169 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(3, 4)), ti.height() // 2))170 menu = await self.openContextMenu()171 await self.triggerMenuAction(menu, 'split-segment')172 self.assertEqual(len(self.track.segments), 2)173 self.assertEqual(self.track.segments[0].time, MT(0, 4))174 self.assertEqual(self.track.segments[0].segment.duration, MD(3, 4))175 self.assertEqual(self.track.segments[1].time, MT(3, 4))176 self.assertEqual(self.track.segments[1].segment.duration, MD(1, 4))177 async def test_select_segments(self):178 with self.project.apply_mutations('test'):179 ref1 = self.track.create_segment(MT(0, 4), MD(4, 4))180 ref2 = self.track.create_segment(MT(6, 4), MD(4, 4))181 ref3 = self.track.create_segment(MT(12, 4), MD(4, 4))182 ref4 = self.track.create_segment(MT(18, 4), MD(4, 4))183 with self._trackItem() as ti:184 selected = lambda: {segment.segmentRef().id for segment in ti.selection()}185 self.assertEqual(selected(), set())186 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(2, 4)), ti.height() // 2))187 await self.clickMouseButton(Qt.LeftButton)188 self.assertEqual(selected(), {ref1.id})189 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(8, 4)), ti.height() // 2))190 await self.clickMouseButton(Qt.LeftButton)191 self.assertEqual(selected(), {ref2.id})192 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(14, 4)), ti.height() // 2))193 await self.pressKey(Qt.Key_Control)194 await self.clickMouseButton(Qt.LeftButton)195 await self.releaseKey(Qt.Key_Control)196 self.assertEqual(selected(), {ref2.id, ref3.id})197 await self.pressKey(Qt.Key_Control)198 await self.clickMouseButton(Qt.LeftButton)199 await self.releaseKey(Qt.Key_Control)200 self.assertEqual(selected(), {ref2.id})201 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(11, 4)), ti.height() // 2))202 await self.clickMouseButton(Qt.LeftButton)203 self.assertEqual(selected(), set())204 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(8, 4)), ti.height() // 2))205 await self.clickMouseButton(Qt.LeftButton)206 await self.moveMouse(QtCore.QPoint(ti.timeToX(MT(20, 4)), ti.height() // 2))207 await self.pressKey(Qt.Key_Shift)208 await self.clickMouseButton(Qt.LeftButton)209 await self.releaseKey(Qt.Key_Shift)210 self.assertEqual(selected(), {ref2.id, ref3.id, ref4.id})211 async def test_select_all_segment(self):212 with self.project.apply_mutations('test'):213 ref1 = self.track.create_segment(MT(0, 4), MD(4, 4))214 ref2 = self.track.create_segment(MT(6, 4), MD(4, 4))215 with self._trackItem() as ti:216 menu = await self.openContextMenu()217 await self.triggerMenuAction(menu, 'select-all')218 self.assertEqual(219 {segment.segmentRef().id for segment in ti.selection()},220 {ref1.id, ref2.id})221 async def test_clear_selection_segment(self):222 with self.project.apply_mutations('test'):223 self.track.create_segment(MT(0, 4), MD(4, 4))224 self.track.create_segment(MT(6, 4), MD(4, 4))225 with self._trackItem() as ti:226 ti.addToSelection(ti.segments[0])227 menu = await self.openContextMenu()228 await self.triggerMenuAction(menu, 'clear-selection')...
segmentation.py
Source:segmentation.py
...85 create_segment : a function of two arguments (sequence, sequence range) that returns a line segment that approximates the sequence data in the specified range86 compute_error: a function of two argments (sequence, segment) that returns the error from fitting the specified line segment to the sequence data87 max_error: the maximum allowable line segment fitting error88 """89 segments = [create_segment(sequence,seq_range) for seq_range in zip(range(len(sequence))[:-1],range(len(sequence))[1:])]90 mergesegments = [create_segment(sequence,(seg1[0],seg2[2])) for seg1,seg2 in zip(segments[:-1],segments[1:])]91 mergecosts = [compute_error(sequence, segment) for segment in mergesegments]92 while min(mergecosts) < max_error:93 idx = mergecosts.index(min(mergecosts))94 segments[idx] = mergesegments[idx]95 del segments[idx+1]96 if idx > 0: 97 mergesegments[idx-1] = create_segment(sequence,(segments[idx-1][0],segments[idx][2])) # å 为å äºä¸ä¸ªåå§çç¹æ以æ´æ°åè¾¹çmergesegemnts98 mergecosts[idx-1] = compute_error(sequence,mergesegments[idx-1])99 if idx+1 < len(mergecosts):100 mergesegments[idx+1] = create_segment(sequence,(segments[idx][0],segments[idx+1][2])) # å 为å äºä¸ä¸ªåå§çç¹æ以æ´æ°åè¾¹çmergesegemnts101 mergecosts[idx+1] = compute_error(sequence,mergesegments[idx])102 del mergesegments[idx] # å 为mergesegmentsæ¯è·¨ä¸ä¸ªç¹mergeçæ以åºè¯¥å é¤è¿ä¸ªæ²¡æè·¨ç¹çmergeç¹103 del mergecosts[idx] # å é¤å¯¹åºçcostç¹ï¼ç»§ç»æ¾ä¸ä¸ä¸ªæå°costçmergeç¹104 return segments105 106 def _topdownsegment(sequence, create_segment, compute_error, max_error, seq_range=None):107 """108 Return a list of line segments that approximate the sequence.109 The list is computed using the bottom-up technique.110 Parameters111 ----------112 sequence : sequence to segment113 create_segment : a function of two arguments (sequence, sequence range) that returns a line segment that approximates the sequence data in the specified range114 compute_error: a function of two argments (sequence, segment) that returns the error from fitting the specified line segment to the sequence data115 max_error: the maximum allowable line segment fitting error116 """117 if not seq_range:118 seq_range = (0,len(sequence)-1)119 bestlefterror,bestleftsegment = float('inf'), None120 bestrighterror,bestrightsegment = float('inf'), None121 bestidx = None122 for idx in range(seq_range[0]+1,seq_range[1]):123 segment_left = create_segment(sequence,(seq_range[0],idx))124 error_left = compute_error(sequence,segment_left)125 segment_right = create_segment(sequence,(idx,seq_range[1]))126 error_right = compute_error(sequence, segment_right)127 if error_left + error_right < bestlefterror + bestrighterror:128 bestlefterror, bestrighterror = error_left, error_right129 bestleftsegment, bestrightsegment = segment_left, segment_right130 bestidx = idx131 if bestlefterror <= max_error:132 leftsegs = [bestleftsegment]133 else:134 leftsegs = _topdownsegment(sequence, create_segment, compute_error, max_error, (seq_range[0],bestidx))135 if bestrighterror <= max_error:136 rightsegs = [bestrightsegment]137 else:138 rightsegs = _topdownsegment(sequence, create_segment, compute_error, max_error, (bestidx,seq_range[1]))139 return leftsegs + rightsegs...
segment.py
Source:segment.py
...13 if not seq_range:14 seq_range = (0,len(sequence)-1)15 start = seq_range[0]16 end = start17 result_segment = create_segment(sequence,(seq_range[0],seq_range[1]))18 while end < seq_range[1]:19 end += 120 test_segment = create_segment(sequence,(start,end))21 error = compute_error(sequence,test_segment)22 if error <= max_error:23 result_segment = test_segment24 else:25 break26 if end == seq_range[1]:27 return [result_segment]28 else:29 return [result_segment] + slidingwindowsegment(sequence, create_segment, compute_error, max_error, (end-1,seq_range[1]))30 31def bottomupsegment(sequence, create_segment, compute_error, max_error):32 """33 Return a list of line segments that approximate the sequence.34 35 The list is computed using the bottom-up technique.36 37 Parameters38 ----------39 sequence : sequence to segment40 create_segment : a function of two arguments (sequence, sequence range) that returns a line segment that approximates the sequence data in the specified range41 compute_error: a function of two argments (sequence, segment) that returns the error from fitting the specified line segment to the sequence data42 max_error: the maximum allowable line segment fitting error43 44 """45 segments = [create_segment(sequence,seq_range) for seq_range in zip(range(len(sequence))[:-1],range(len(sequence))[1:])]46 mergesegments = [create_segment(sequence,(seg1[0],seg2[2])) for seg1,seg2 in zip(segments[:-1],segments[1:])]47 mergecosts = [compute_error(sequence,segment) for segment in mergesegments]48 while min(mergecosts) < max_error:49 idx = mergecosts.index(min(mergecosts))50 new_seg = create_segment(sequence, (segments[idx][0], segments[idx + 1][2]))51 segments[idx] = new_seg52 del segments[idx + 1]53 if idx > 0:54 merge_seg = create_segment(sequence, (segments[idx - 1][0], segments[idx][2]))55 mergecosts[idx - 1] = compute_error(sequence, merge_seg)56 if idx + 1 < len(mergecosts):57 merge_seg = create_segment(sequence, (segments[idx][0], segments[idx + 1][2]))58 mergecosts[idx] = compute_error(sequence, merge_seg)59 del mergecosts[idx]60 return segments61 62def topdownsegment(sequence, create_segment, compute_error, max_error, seq_range=None):63 """64 Return a list of line segments that approximate the sequence.65 66 The list is computed using the bottom-up technique.67 68 Parameters69 ----------70 sequence : sequence to segment71 create_segment : a function of two arguments (sequence, sequence range) that returns a line segment that approximates the sequence data in the specified range72 compute_error: a function of two argments (sequence, segment) that returns the error from fitting the specified line segment to the sequence data73 max_error: the maximum allowable line segment fitting error74 75 """76 if not seq_range:77 seq_range = (0,len(sequence)-1)78 bestlefterror,bestleftsegment = float('inf'), None79 bestrighterror,bestrightsegment = float('inf'), None80 bestidx = None81 for idx in range(seq_range[0]+1,seq_range[1]):82 segment_left = create_segment(sequence,(seq_range[0],idx))83 error_left = compute_error(sequence,segment_left)84 segment_right = create_segment(sequence,(idx,seq_range[1]))85 error_right = compute_error(sequence, segment_right)86 if error_left + error_right < bestlefterror + bestrighterror:87 bestlefterror, bestrighterror = error_left, error_right88 bestleftsegment, bestrightsegment = segment_left, segment_right89 bestidx = idx90 91 if bestlefterror <= max_error:92 leftsegs = [bestleftsegment]93 else:94 leftsegs = topdownsegment(sequence, create_segment, compute_error, max_error, (seq_range[0],bestidx))95 96 if bestrighterror <= max_error:97 rightsegs = [bestrightsegment]98 else:99 rightsegs = topdownsegment(sequence, create_segment, compute_error, max_error, (bestidx,seq_range[1]))100 101 return leftsegs + rightsegs102def m_swab(sequence, create_segment, compute_error, max_error, buffer_size=80):103 """104 Described in Van Laerhoven, Kristof, and Bernt Schiele.105 "An Empirical Study of Time Series Approximation Algorithms for Wearable Accelerometers." (2009).106 Return a list of line segments that approximate the sequence.107 The list is computed using the bottom-up technique.108 Parameters109 ----------110 sequence : sequence to segment111 create_segment : a function of two arguments (sequence, sequence range) that returns a line segment that approximates the sequence data in the specified range112 compute_error: a function of two argments (sequence, segment) that returns the error from fitting the specified line segment to the sequence data113 max_error: the maximum allowable line segment fitting error114 """115 segs = []116 win_left = 0117 win_right = buffer_size-1118 seq_range = (0, len(sequence)-1)119 while True: #while new data:120 swabbuf = sequence[win_left:win_right]121 # Bottom-Up segmentation of buffer122 T = bottomupsegment(swabbuf, create_segment, compute_error, max_error)123 # add left-most segment from BU:124 segs.append(T[0])125 n = len(segs)126 # merge last segments if slope is equal127 if n > 2:128 last_slope = (segs[-1][3] - segs[-1][1]) // (segs[-1][2] - segs[-1][0])129 b_last_slope = (segs[-2][3] - segs[-2][1]) // (segs[-2][2] - segs[-2][0])130 if last_slope == b_last_slope:131 # merge segments132 new_segs = segs[:-2]133 merged = create_segment(sequence, (segs[-2][0], segs[-1][2]))134 new_segs.append(merged)135 segs = new_segs136 n -= 1137 # shift left of buffer window:138 win_left += segs[-1][0]139 # shift right of buffer window:140 if win_right < seq_range[1]:141 i = win_right + 1142 # get sign of the slope143 s = np.sign(sequence[i] - sequence[i-1])144 while np.sign(sequence[i] - sequence[i-1]) == s:145 i += 1146 if i >= seq_range[1]:147 i -= 1...
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