3a27997014
- AxisItem shows fewer tick levels in some cases.
- Lots of boundingRect and dataBounds caching
(improves ViewBox auto-range performance, especially with multiple plots)
- GraphicsScene avoids testing for hover intersections with non-hoverable items
(much less slowdown when moving mouse over plots)
Improved performance for remote plotting:
- reduced cost of transferring arrays between processes (pickle is too slow)
- avoid unnecessary synchronous calls
Added RemoteSpeedTest example
248 lines
7.7 KiB
Python
248 lines
7.7 KiB
Python
import sys, os, subprocess, time
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import initExample
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from pyqtgraph.Qt import QtCore, QtGui, USE_PYSIDE
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if USE_PYSIDE:
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from exampleLoaderTemplate_pyside import Ui_Form
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else:
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from exampleLoaderTemplate_pyqt import Ui_Form
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import os, sys
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from pyqtgraph.pgcollections import OrderedDict
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examples = OrderedDict([
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('Command-line usage', 'CLIexample.py'),
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('Basic Plotting', 'Plotting.py'),
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('ImageView', 'ImageView.py'),
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('ParameterTree', 'parametertree.py'),
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('Crosshair / Mouse interaction', 'crosshair.py'),
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('Data Slicing', 'DataSlicing.py'),
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('Plot Customization', 'customPlot.py'),
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('Dock widgets', 'dockarea.py'),
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('Console', 'ConsoleWidget.py'),
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('Histograms', 'histogram.py'),
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('Remote Plotting', 'RemoteSpeedTest.py'),
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('GraphicsItems', OrderedDict([
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('Scatter Plot', 'ScatterPlot.py'),
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#('PlotItem', 'PlotItem.py'),
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('IsocurveItem', 'isocurve.py'),
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('ImageItem - video', 'ImageItem.py'),
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('ImageItem - draw', 'Draw.py'),
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('Region-of-Interest', 'ROIExamples.py'),
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('GraphicsLayout', 'GraphicsLayout.py'),
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('LegendItem', 'Legend.py'),
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('Text Item', 'text.py'),
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('Linked Views', 'linkedViews.py'),
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('Arrow', 'Arrow.py'),
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('ViewBox', 'ViewBox.py'),
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])),
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('Benchmarks', OrderedDict([
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('Video speed test', 'VideoSpeedTest.py'),
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('Line Plot update', 'PlotSpeedTest.py'),
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('Scatter Plot update', 'ScatterPlotSpeedTest.py'),
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])),
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('3D Graphics', OrderedDict([
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('Volumetric', 'GLVolumeItem.py'),
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('Isosurface', 'GLIsosurface.py'),
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('Surface Plot', 'GLSurfacePlot.py'),
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('Scatter Plot', 'GLScatterPlotItem.py'),
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('Shaders', 'GLshaders.py'),
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('Line Plot', 'GLLinePlotItem.py'),
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('Mesh', 'GLMeshItem.py'),
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('Image', 'GLImageItem.py'),
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])),
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('Widgets', OrderedDict([
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('PlotWidget', 'PlotWidget.py'),
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('SpinBox', 'SpinBox.py'),
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('ConsoleWidget', 'ConsoleWidget.py'),
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('TreeWidget', 'TreeWidget.py'),
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('DataTreeWidget', 'DataTreeWidget.py'),
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('GradientWidget', 'GradientWidget.py'),
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#('TableWidget', '../widgets/TableWidget.py'),
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('ColorButton', 'ColorButton.py'),
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#('CheckTable', '../widgets/CheckTable.py'),
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#('VerticalLabel', '../widgets/VerticalLabel.py'),
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('JoystickButton', 'JoystickButton.py'),
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])),
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('GraphicsScene', 'GraphicsScene.py'),
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('Flowcharts', 'Flowchart.py'),
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('Custom Flowchart Nodes', 'FlowchartCustomNode.py'),
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#('Canvas', '../canvas'),
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#('MultiPlotWidget', 'MultiPlotWidget.py'),
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])
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path = os.path.abspath(os.path.dirname(__file__))
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class ExampleLoader(QtGui.QMainWindow):
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def __init__(self):
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QtGui.QMainWindow.__init__(self)
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self.ui = Ui_Form()
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self.cw = QtGui.QWidget()
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self.setCentralWidget(self.cw)
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self.ui.setupUi(self.cw)
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global examples
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self.populateTree(self.ui.exampleTree.invisibleRootItem(), examples)
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self.ui.exampleTree.expandAll()
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self.resize(1000,500)
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self.show()
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self.ui.splitter.setSizes([250,750])
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self.ui.loadBtn.clicked.connect(self.loadFile)
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self.ui.exampleTree.currentItemChanged.connect(self.showFile)
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self.ui.exampleTree.itemDoubleClicked.connect(self.loadFile)
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self.ui.pyqtCheck.toggled.connect(self.pyqtToggled)
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self.ui.pysideCheck.toggled.connect(self.pysideToggled)
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def pyqtToggled(self, b):
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if b:
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self.ui.pysideCheck.setChecked(False)
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def pysideToggled(self, b):
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if b:
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self.ui.pyqtCheck.setChecked(False)
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def populateTree(self, root, examples):
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for key, val in examples.items():
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item = QtGui.QTreeWidgetItem([key])
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if isinstance(val, basestring):
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item.file = val
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else:
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self.populateTree(item, val)
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root.addChild(item)
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def currentFile(self):
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item = self.ui.exampleTree.currentItem()
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if hasattr(item, 'file'):
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global path
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return os.path.join(path, item.file)
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return None
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def loadFile(self):
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fn = self.currentFile()
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extra = []
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if self.ui.pyqtCheck.isChecked():
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extra.append('pyqt')
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elif self.ui.pysideCheck.isChecked():
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extra.append('pyside')
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if self.ui.forceGraphicsCheck.isChecked():
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extra.append(str(self.ui.forceGraphicsCombo.currentText()))
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if fn is None:
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return
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if sys.platform.startswith('win'):
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os.spawnl(os.P_NOWAIT, sys.executable, '"'+sys.executable+'"', '"' + fn + '"', *extra)
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else:
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os.spawnl(os.P_NOWAIT, sys.executable, sys.executable, fn, *extra)
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def showFile(self):
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fn = self.currentFile()
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if fn is None:
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self.ui.codeView.clear()
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return
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if os.path.isdir(fn):
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fn = os.path.join(fn, '__main__.py')
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text = open(fn).read()
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self.ui.codeView.setPlainText(text)
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def run():
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app = QtGui.QApplication([])
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loader = ExampleLoader()
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app.exec_()
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def buildFileList(examples, files=None):
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if files == None:
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files = []
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for key, val in examples.items():
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#item = QtGui.QTreeWidgetItem([key])
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if isinstance(val, basestring):
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#item.file = val
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files.append((key,val))
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else:
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buildFileList(val, files)
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return files
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def testFile(name, f, exe, lib, graphicsSystem=None):
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global path
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fn = os.path.join(path,f)
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#print "starting process: ", fn
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os.chdir(path)
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sys.stdout.write(name)
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sys.stdout.flush()
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import1 = "import %s" % lib if lib != '' else ''
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import2 = os.path.splitext(os.path.split(fn)[1])[0]
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graphicsSystem = '' if graphicsSystem is None else "pg.QtGui.QApplication.setGraphicsSystem('%s')" % graphicsSystem
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code = """
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try:
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%s
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import initExample
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import pyqtgraph as pg
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%s
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import %s
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import sys
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print("test complete")
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sys.stdout.flush()
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import time
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while True: ## run a little event loop
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pg.QtGui.QApplication.processEvents()
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time.sleep(0.01)
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except:
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print("test failed")
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raise
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""" % (import1, graphicsSystem, import2)
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process = subprocess.Popen(['exec %s -i' % (exe)], shell=True, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
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process.stdin.write(code.encode('UTF-8'))
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#process.stdin.close()
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output = ''
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fail = False
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while True:
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c = process.stdout.read(1).decode()
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output += c
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#sys.stdout.write(c)
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#sys.stdout.flush()
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if output.endswith('test complete'):
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break
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if output.endswith('test failed'):
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fail = True
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break
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time.sleep(1)
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process.kill()
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#process.wait()
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res = process.communicate()
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if fail or 'exception' in res[1].decode().lower() or 'error' in res[1].decode().lower():
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print('.' * (50-len(name)) + 'FAILED')
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print(res[0].decode())
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print(res[1].decode())
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else:
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print('.' * (50-len(name)) + 'passed')
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if __name__ == '__main__':
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if '--test' in sys.argv[1:]:
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files = buildFileList(examples)
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if '--pyside' in sys.argv[1:]:
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lib = 'PySide'
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elif '--pyqt' in sys.argv[1:]:
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lib = 'PyQt4'
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else:
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lib = ''
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exe = sys.executable
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print("Running tests:", lib, sys.executable)
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for f in files:
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testFile(f[0], f[1], exe, lib)
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else:
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run()
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