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Added code for inverting X axis

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This commit is contained in:
Luke Campagnola 2014-04-28 07:36:59 -04:00
parent 255b2405d1
commit c6f2e9c2a9
5 changed files with 40 additions and 9 deletions
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1
CHANGELOG
View File

@ -48,6 +48,7 @@ pyqtgraph-0.9.9 [unreleased]
- Added AxisItem.setStyle()
- Added configurable formatting for TableWidget
- Added 'stepMode' argument to PlotDataItem()
- Added ViewBox.invertX()
Bugfixes:
- PlotCurveItem now has correct clicking behavior--clicks within a few px

3
pyqtgraph/graphicsItems/AxisItem.py
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@ -454,6 +454,9 @@ class AxisItem(GraphicsWidget):
else:
if newRange is None:
newRange = view.viewRange()[0]
if view.xInverted():
self.setRange(*newRange[::-1])
else:
self.setRange(*newRange)
def boundingRect(self):

3
pyqtgraph/graphicsItems/PlotItem/PlotItem.py
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@ -78,6 +78,7 @@ class PlotItem(GraphicsWidget):
:func:`disableAutoRange <pyqtgraph.ViewBox.disableAutoRange>`,
:func:`setAspectLocked <pyqtgraph.ViewBox.setAspectLocked>`,
:func:`invertY <pyqtgraph.ViewBox.invertY>`,
:func:`invertX <pyqtgraph.ViewBox.invertX>`,
:func:`register <pyqtgraph.ViewBox.register>`,
:func:`unregister <pyqtgraph.ViewBox.unregister>`
@ -299,7 +300,7 @@ class PlotItem(GraphicsWidget):
for m in ['setXRange', 'setYRange', 'setXLink', 'setYLink', 'setAutoPan', # NOTE:
'setAutoVisible', 'setRange', 'autoRange', 'viewRect', 'viewRange', # If you update this list, please
'setMouseEnabled', 'setLimits', 'enableAutoRange', 'disableAutoRange', # update the class docstring
'setAspectLocked', 'invertY', 'register', 'unregister']: # as well.
'setAspectLocked', 'invertY', 'invertX', 'register', 'unregister']: # as well.
def _create_method(name):
def method(self, *args, **kwargs):

27
pyqtgraph/graphicsItems/ViewBox/ViewBox.py
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@ -104,7 +104,7 @@ class ViewBox(GraphicsWidget):
NamedViews = weakref.WeakValueDictionary() # name: ViewBox
AllViews = weakref.WeakKeyDictionary() # ViewBox: None
def __init__(self, parent=None, border=None, lockAspect=False, enableMouse=True, invertY=False, enableMenu=True, name=None):
def __init__(self, parent=None, border=None, lockAspect=False, enableMouse=True, invertY=False, enableMenu=True, name=None, invertX=False):
"""
============== =============================================================
**Arguments:**
@ -115,6 +115,7 @@ class ViewBox(GraphicsWidget):
coorinates to. (or False to allow the ratio to change)
*enableMouse* (bool) Whether mouse can be used to scale/pan the view
*invertY* (bool) See :func:`invertY <pyqtgraph.ViewBox.invertY>`
*invertX* (bool) See :func:`invertX <pyqtgraph.ViewBox.invertX>`
============== =============================================================
"""
@ -139,6 +140,7 @@ class ViewBox(GraphicsWidget):
'viewRange': [[0,1], [0,1]], ## actual range viewed
'yInverted': invertY,
'xInverted': invertX,
'aspectLocked': False, ## False if aspect is unlocked, otherwise float specifies the locked ratio.
'autoRange': [True, True], ## False if auto range is disabled,
## otherwise float gives the fraction of data that is visible
@ -996,6 +998,9 @@ class ViewBox(GraphicsWidget):
x2 = vr.right()
else: ## views overlap; line them up
upp = float(vr.width()) / vg.width()
if self.xInverted():
x1 = vr.left() + (sg.right()-vg.right()) * upp
else:
x1 = vr.left() + (sg.x()-vg.x()) * upp
x2 = x1 + sg.width() * upp
self.enableAutoRange(ViewBox.XAxis, False)
@ -1054,10 +1059,27 @@ class ViewBox(GraphicsWidget):
#self.updateMatrix(changed=(False, True))
self.updateViewRange()
self.sigStateChanged.emit(self)
self.sigYRangeChanged.emit(self, tuple(self.state['viewRange'][1]))
def yInverted(self):
return self.state['yInverted']
def invertX(self, b=True):
"""
By default, the positive x-axis points rightward on the screen. Use invertX(True) to reverse the x-axis.
"""
if self.state['xInverted'] == b:
return
self.state['xInverted'] = b
#self.updateMatrix(changed=(False, True))
self.updateViewRange()
self.sigStateChanged.emit(self)
self.sigXRangeChanged.emit(self, tuple(self.state['viewRange'][0]))
def xInverted(self):
return self.state['xInverted']
def setAspectLocked(self, lock=True, ratio=1):
"""
If the aspect ratio is locked, view scaling must always preserve the aspect ratio.
@ -1555,6 +1577,7 @@ class ViewBox(GraphicsWidget):
if link is not None:
link.linkedViewChanged(self, ax)
self.update()
self._matrixNeedsUpdate = True
def updateMatrix(self, changed=None):
@ -1567,6 +1590,8 @@ class ViewBox(GraphicsWidget):
scale = Point(bounds.width()/vr.width(), bounds.height()/vr.height())
if not self.state['yInverted']:
scale = scale * Point(1, -1)
if self.state['xInverted']:
scale = scale * Point(-1, 1)
m = QtGui.QTransform()
## First center the viewport at 0

9
pyqtgraph/graphicsItems/ViewBox/ViewBoxMenu.py
View File

@ -56,7 +56,7 @@ class ViewBoxMenu(QtGui.QMenu):
for sig, fn in connects:
sig.connect(getattr(self, axis.lower()+fn))
self.ctrl[0].invertCheck.hide() ## no invert for x-axis
self.ctrl[0].invertCheck.toggled.connect(self.xInvertToggled)
self.ctrl[1].invertCheck.toggled.connect(self.yInvertToggled)
## exporting is handled by GraphicsScene now
#self.export = QtGui.QMenu("Export")
@ -139,8 +139,9 @@ class ViewBoxMenu(QtGui.QMenu):
self.ctrl[i].autoPanCheck.setChecked(state['autoPan'][i])
self.ctrl[i].visibleOnlyCheck.setChecked(state['autoVisibleOnly'][i])
xy = ['x', 'y'][i]
self.ctrl[i].invertCheck.setChecked(state.get(xy+'Inverted', False))
self.ctrl[1].invertCheck.setChecked(state['yInverted'])
self.valid = True
def popup(self, *args):
@ -217,19 +218,19 @@ class ViewBoxMenu(QtGui.QMenu):
def yInvertToggled(self, b):
self.view().invertY(b)
def xInvertToggled(self, b):
self.view().invertX(b)
def exportMethod(self):
act = self.sender()
self.exportMethods[str(act.text())]()
def set3ButtonMode(self):
self.view().setLeftButtonAction('pan')
def set1ButtonMode(self):
self.view().setLeftButtonAction('rect')
def setViewList(self, views):
names = ['']
self.viewMap.clear()