Prevent updating ViewBox matrix in setRange when no changes have been made to range 
Prevent updating ViewBox matrix in setRange when no changes have been made to range 

campagnola/acq4,ericdill/pyqtgraph,wonkoderverstaendige/MausverPyler,pbmanis/acq4,acq4/acq4,jlombacher/pyqtgraph,mpvismer/pyqtgraph,benvermaercke/pyqtgraph,mgraupe/acq4,onlyjus/pyqtgraph,tropp/acq4,onlyjus/pyqtgraph,campagnola/acq4,welshjf/pyqtgraph,acq4/acq4,carlomt/dicom_tools,ericdill/pyqtgraph,campagnola/acq4,JenSte/pyqtgraph,JenSte/pyqtgraph,stscieisenhamer/pyqtgraph,petebachant/pyqtgraph,benvermaercke/pyqtgraph,tropp/acq4,mgraupe/acq4,petebachant/pyqtgraph,hiuwo/acq4,Lx37/pyqtgraph,duguxy/pyqtgraph,hiuwo/acq4,wonkoderverstaendige/MausverPyler,meganbkratz/acq4,onlyjus/pyqtgraph,stscieisenhamer/pyqtgraph,mgraupe/acq4,campagnola/acq4,jlombacher/pyqtgraph,gvalentine/pyqtgraph,acq4/acq4,mgraupe/acq4,meganbkratz/acq4,duguxy/pyqtgraph,mgraupe/acq4,ddamiani/pyqtgraph,pbmanis/acq4,gvalentine/pyqtgraph,carlomt/dicom_tools,pmaunz/pyqtgraph,derricw/pyqtgraph,pbmanis/acq4,derricw/pyqtgraph,meganbkratz/acq4,vallsv/pyqtgraph,ng110/pyqtgraph,vallsv/pyqtgraph,hiuwo/acq4,pmaunz/pyqtgraph,hiuwo/acq4,meganbkratz/acq4,tropp/acq4,benvermaercke/pyqtgraph,tropp/acq4,ddamiani/pyqtgraph,welshjf/pyqtgraph,welshjf/pyqtgraph,nmearl/pyqtgraph,Lx37/pyqtgraph,ng110/pyqtgraph,mpvismer/pyqtgraph,gvalentine/pyqtgraph,nmearl/pyqtgraph,hiuwo/acq4,pbmanis/acq4,ddamiani/pyqtgraph,acq4/acq4,ericdill/pyqtgraph