{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950693,-0.310133,0.000000,0.000000,0.173166,-0.530831,0.829597,0.000000,-0.256745,0.787035,0.560944,0.000000,-1639280.920561,5025112.803597,3557574.123754,1],    "boundingVolume": {    "region": [1.886071,0.595468,1.886187,0.595583,0.000000,8.800902]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/10_1451615.b3dm"}}}