NavVis M3 no dataset.json

Hi,

I am trying to create an area target from the NavVis M3 scanner. Before scanning my rooms, I contacted NavVis and asked if the M3 scanner works similar to the M6 scanner that Vuforia suggests on their website. NavVis explained that the data format is the same for both scanners, they just do not list the M3 scanner anymore because they do not distribute it anymore.

So, I have my processed NavVis M3 scan data and try to convert it to e57 as described by Vuforia. This fails because I do not have the "dataset metadata (dataset.json)". Instead, the information that is supposed to be in "dataset.json" is stored in the files "title", "version_layout", and "origin.json" seperatly.

If I convert the files using other tools, the Area Target Generator App fails with the following error message

[CODE] E57 processing: Validation of the E57 file failed. Check the validation report for details. [ SUCCESS ] 'cartesianBounds' field in Data3D structure shall be defined. [ SUCCESS ] 'cartesianX', 'cartesianY', 'cartesianZ' fields in PointRecord structure shall be defined. [ SUCCESS ] 'colorRed', 'colorGreen', 'colorBlue' fields in PointRecord structure shall be defined. [ SUCCESS ] 'nor:normalX', 'nor:normalY', 'nor:normalZ' fields in PointRecord structure shall be defined or we need to be able to estimate the normals. To estimate normals each Data3D structure shall have associated images from exactly one scanning position through Image2D associatedData3DGuid field. [ SUCCESS ] 'isColorInvalid' field in PointRecord structure must not be defined. [ FAIL  ] E57 shall contain one or more Image2D structures that have either 'sphericalRepresentation' field or 'pinholeRepresentation' field. [ SUCCESS ] 'pose' field in Image2D structure shall be defined. [ SUCCESS ] Spherical images shall have minimal resolution of 4096x2048 and their width = 2 * height. Pinhole images shall have minimal resolution of 1024x1024 and must be square (width = height). [/CODE]

I hope you can explain to me how to find or create the dataset.json file on the M3 scanner or how to handle the error from Area Target Generator.

Thanks,

Linda