{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949879,-0.312618,0.000000,0.000000,0.174488,-0.530176,0.829739,0.000000,-0.258846,0.786497,0.560733,0.000000,-1652697.274093,5021670.842115,3556235.666456,1],    "boundingVolume": {    "region": [1.888662,0.595205,1.888826,0.595337,0.000000,8.806304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356278.b3dm"}}}