importing precision geometry data

[drsewilliams]

Precision geometry data contains the concept of model groups where anatomy subsections are assigned to different anatomy groups; for example the aorta and the left ventricle below.

The geometry is dealt with in import_precision.m, and a possible logic for doing so is as follows:

(1) Find the dxgeo with the first comment 'St. Jude Medical Dx Landmark Geo data export; file format revision 0'
- best to do this by identifying the comment which contains the string 'Dx Landmark Geo'
(2) Use the geometry described in this file as userdata.surface.triRep
(3) Find the dxgeo with the comment 'St. Jude Medical Model Groups data export; file format revision 0'
- best to do this be identifying the comment which contains the string 'Model Groups'
(4) Use this file to tag each polygon in userdata.surface.triRep as belonging to one or more geometries. Will need to think of how/where to store this information, but it probably needs another data field and may be specific to Precision
(5) Note that some dxgeo's do not contain a comment. These probably refer to image data sets merged into the system. Will need to think of how/where to store this information, but it probably needs another data field, and is not likely to be specific to Precision