{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950568,-0.310516,0.000000,0.000000,0.173006,-0.529614,0.830409,0.000000,-0.257316,0.787708,0.559736,0.000000,-1642918.641356,5029387.824907,3549898.363463,1],    "boundingVolume": {    "region": [1.886441,0.593994,1.886624,0.594140,0.000000,8.632468]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1375981.b3dm"}}}