def _createROI(self):
w = self.display.widget
# s = w.image.shape[1:3]
r = self.display.widget.view.vb.viewRange()
p = ((r[0][0] + r[0][1]) / 2, (r[1][0] + r[1][1]) / 2)
s = [(r[0][1] - r[0][0]) * 0.1, (r[1][1] - r[1][0]) * 0.1]
# if w.image.ndim == 3:
# s = s[1:]
if not self.quadROI:
self.quadROI = PolyLineROI(
[
[p[0] - s[0], p[1] - s[1]],
[p[0] + s[0], p[1] - s[1]],
[p[0] + s[0], p[1] + s[1]],
[p[0] - s[0], p[1] + s[1]],
# [s[0]*0.2, s[1]*0.2],
# [s[0]*0.8, s[1]*0.2],
# [s[0]*0.8, s[1]*0.8],
# [s[0]*0.2, s[1]*0.8]
],
closed=True,
pen='r')
self.quadROI.translatable = False
self.quadROI.mouseHovering = False
# PREVENT CREATION OF SUB SEGMENTS:
for s in self.quadROI.segments:
s.mouseClickEvent = lambda x: None
w.view.vb.addItem(self.quadROI)
