def addNew(self):
rgn = ptree.Parameter.create(name='region',
autoIncrementName=True,
renamable=True,
removable=True,
type='bool',
value=True,
children=[
dict(name='DB Column',
type='str',
value='Region'),
dict(name='Color', type='color'),
])
self.addChild(rgn)
## find the center of the view
view = self.canvas.view
center = view.viewRect().center()
size = [x * 50 for x in view.viewPixelSize()]
pts = [
center, center + pg.Point(size[0], 0),
center + pg.Point(0, size[1])
]
roi = pg.PolyLineROI(pts, closed=True)
roi.setZValue(1000)
view.addItem(roi)
rgn.roi = roi
roi.rgn = rgn
roi.sigRegionChangeFinished.connect(self.regionChanged)
def addROI(self, roiType):
pen = pg.mkPen(pg.intColor(len(self.ROIs)))
center = self.view.viewRect().center()
#print 'camerawindow.py: addROI:: ', self.view.viewPixelSize()
size = [x * 50 for x in self.view.viewPixelSize()]
if roiType == 'rect':
roi = PlotROI(center, size)
elif roiType == 'ellipse':
roi = pg.EllipseROI(center, size, removable=True)
elif roiType == 'polygon':
pts = [
center, center + pg.Point(0, size[1]),
center + pg.Point(size[0], 0)
]
roi = pg.PolyLineROI(pts, closed=True, removable=True)
elif roiType == 'ruler':
pts = [center, center + pg.Point(size[0], size[1])]
roi = RulerROI(pts, removable=True)
else:
raise ValueError("Invalid ROI type %s" % roiType)
roi.setZValue(40000)
roi.setPen(pen)
self.view.addItem(roi)
plot = self.roiPlot.plot(pen=pen)
self.ROIs.append({'roi': roi, 'plot': plot, 'vals': [], 'times': []})
roi.sigRemoveRequested.connect(self.removeROI)
def addActiveRegion(self, rgnType):
rgn = pTypes.SimpleParameter(name=rgnType, autoIncrementName=True,
type='bool', value=True,
removable=True, renamable=True)
self.params.param('Active Regions').addChild(rgn)
pos = self.getViewBox().viewRect().center()
size = self.params.param('spacing').value()*4
if rgnType == 'Rectangle':
roi = pg.ROI(pos=pos, size=size, angle=self.angle())
roi.addScaleHandle([0, 0], [1, 1])
roi.addScaleHandle([1, 1], [0, 0])
roi.addRotateHandle([0, 1], [0.5, 0.5])
roi.addRotateHandle([1, 0], [0.5, 0.5])
elif rgnType == 'Polygon':
roi = pg.PolyLineROI((pos, pos+pg.Point(0,1)*size, pos+pg.Point(1,0)*size), closed=True)
else:
raise Exception('Not sure how to add region of type:%s' % rgnType)
rgn.item = roi
self.rgns.append(rgn)
self.getViewBox().addItem(roi)
roi.sigRegionChanged.connect(self.invalidatePoints)
roi.sigRegionChangeFinished.connect(self.stateChangeFinished)
rgn.sigValueChanged.connect(self.rgnToggled)
self.invalidatePoints()
self.stateChangeFinished()