{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950396,-0.311042,0.000000,0.000000,0.173964,-0.531551,0.828969,0.000000,-0.257300,0.786188,0.561876,0.000000,-1642834.146913,5019721.112490,3563501.887461,1],    "boundingVolume": {    "region": [1.887037,0.596603,1.887134,0.596702,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1393954.b3dm"}}}