{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950004,-0.312237,0.000000,0.000000,0.115580,-0.351659,0.928966,0.000000,-0.289789,0.881705,0.372316,0.000000,-1849174.430120,5626244.493132,2359878.384315,1],    "boundingVolume": {    "region": [1.888280,0.381451,1.888407,0.381554,0.000000,4.387061]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/15_67396.b3dm"}}}