{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950396,-0.311043,0.000000,0.000000,0.173977,-0.531589,0.828942,0.000000,-0.257293,0.786161,0.561917,0.000000,-1642788.600191,5019553.503911,3563757.252339,1],    "boundingVolume": {    "region": [1.887038,0.596652,1.887136,0.596750,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1327992.b3dm"}}}