{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950836,-0.309695,0.000000,0.000000,0.172988,-0.531113,0.829454,0.000000,-0.256337,0.787016,0.561157,0.000000,-1636680.702782,5024994.782594,3558928.633580,1],    "boundingVolume": {    "region": [1.885596,0.595673,1.885741,0.595893,0.000000,8.801387]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1340195.b3dm"}}}