{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898147,-0.439695,0.000000,0.000000,0.281173,-0.574341,0.768813,0.000000,-0.337112,0.688606,0.642010,0.000000,-2153120.733037,4398093.945584,4073041.411928,1],    "boundingVolume": {    "region": [2.026009,0.697089,2.026102,0.697146,0.000000,37.047937]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/7_752944.b3dm"}}}