{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949004,-0.315263,0.000000,0.000000,0.115943,-0.349011,0.929919,0.000000,-0.292901,0.881691,0.369905,0.000000,-1869019.912573,5626122.780094,2344587.595643,1],    "boundingVolume": {    "region": [1.891478,0.378872,1.891583,0.378942,0.000000,21.159023]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/8/21_7734.b3dm"}}}