{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948749,-0.316030,0.000000,0.000000,0.176358,-0.529442,0.829813,0.000000,-0.261695,0.785631,0.560624,0.000000,-1670887.325931,5016143.694406,3555540.708810,1],    "boundingVolume": {    "region": [1.892291,0.595027,1.892387,0.595251,0.000000,8.812225]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1074629.b3dm"}}}