{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897723,-0.440561,0.000000,0.000000,0.282896,-0.576451,0.766599,0.000000,-0.336796,0.686282,0.644659,0.000000,-2151125.615509,4383303.824315,4089890.563137,1],    "boundingVolume": {    "region": [2.026957,0.700543,2.027083,0.700611,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857820.b3dm"}}}