Added functions for  - generating arrow paths  - solving 3d affine mapping matrix  - solving 2d bilinear mapping matrix
Added functions for
 - generating arrow paths
 - solving 3d affine mapping matrix
 - solving 2d bilinear mapping matrix
meganbkratz/acq4,acq4/acq4,derricw/pyqtgraph,jlombacher/pyqtgraph,petebachant/pyqtgraph,welshjf/pyqtgraph,mgraupe/acq4,ng110/pyqtgraph,mpvismer/pyqtgraph,duguxy/pyqtgraph,jlombacher/pyqtgraph,campagnola/acq4,wonkoderverstaendige/MausverPyler,mgraupe/acq4,JenSte/pyqtgraph,meganbkratz/acq4,ddamiani/pyqtgraph,tropp/acq4,hiuwo/acq4,mgraupe/acq4,benvermaercke/pyqtgraph,gvalentine/pyqtgraph,ericdill/pyqtgraph,tropp/acq4,hiuwo/acq4,acq4/acq4,onlyjus/pyqtgraph,onlyjus/pyqtgraph,tropp/acq4,Lx37/pyqtgraph,petebachant/pyqtgraph,acq4/acq4,derricw/pyqtgraph,ng110/pyqtgraph,ericdill/pyqtgraph,mgraupe/acq4,mpvismer/pyqtgraph,nmearl/pyqtgraph,pbmanis/acq4,hiuwo/acq4,welshjf/pyqtgraph,pbmanis/acq4,pbmanis/acq4,benvermaercke/pyqtgraph,tropp/acq4,ddamiani/pyqtgraph,welshjf/pyqtgraph,pbmanis/acq4,JenSte/pyqtgraph,pmaunz/pyqtgraph,carlomt/dicom_tools,carlomt/dicom_tools,onlyjus/pyqtgraph,hiuwo/acq4,Lx37/pyqtgraph,hiuwo/acq4,nmearl/pyqtgraph,mgraupe/acq4,acq4/acq4,gvalentine/pyqtgraph,campagnola/acq4,campagnola/acq4,campagnola/acq4,meganbkratz/acq4,wonkoderverstaendige/MausverPyler,vallsv/pyqtgraph,gvalentine/pyqtgraph,stscieisenhamer/pyqtgraph,vallsv/pyqtgraph,duguxy/pyqtgraph,benvermaercke/pyqtgraph,pmaunz/pyqtgraph,ddamiani/pyqtgraph,stscieisenhamer/pyqtgraph,meganbkratz/acq4,ericdill/pyqtgraph