{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950325,-0.311258,0.000000,0.000000,0.173613,-0.530071,0.829990,0.000000,-0.257799,0.787106,0.560360,0.000000,-1646008.954716,5025557.201674,3553862.894801,1],    "boundingVolume": {    "region": [1.887263,0.594762,1.887362,0.594879,0.000000,8.576102]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_1459939.b3dm"}}}