{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944309,-0.329059,0.000000,0.000000,0.183971,-0.527945,0.829113,0.000000,-0.272253,0.781290,0.561662,0.000000,-1738301.367505,4988443.870414,3562141.382191,1],    "boundingVolume": {    "region": [1.906046,0.596356,1.906161,0.596431,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_131603.b3dm"}}}