def makeFrameTransform(region, binning):
"""Make a transform that maps from image coordinates to whole-sensor coordinates,
given the region-of-interest and binning used to acquire the image."""
tr = SRTTransform3D()
tr.translate(*region[:2])
tr.scale(binning[0], binning[1], 1)
return tr
def __init__(self, data, info):
object.__init__(self)
self._data = data
self._info = info
## Complete transform maps from image coordinates to global.
if 'transform' not in info:
info['transform'] = SRTTransform3D(self.deviceTransform() *
self.frameTransform())
def globalTransform(self):
"""Return the transform that maps this frame's image coordinates
to global coordinates. This is equivalent to (deviceTransform * frameTransform).
"""
return SRTTransform3D(self._info['transform'])
def frameTransform(self):
"""Return the transform that maps from this frame's image coordinates
to its imager device coordinates. This transform takes into account
the camera's region and binning settings.
"""
return SRTTransform3D(self._info['frameTransform'])
def deviceTransform(self):
"""Return the transform that maps from imager device coordinates to global."""
return SRTTransform3D(self._info['deviceTransform'])