{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949275,-0.314447,0.000000,0.000000,0.175791,-0.530691,0.829135,0.000000,-0.260169,0.785419,0.561631,0.000000,-1661150.759760,5014805.300971,3561941.975945,1],    "boundingVolume": {    "region": [1.890621,0.596315,1.890719,0.596397,0.000000,8.712338]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/13_1338239.b3dm"}}}