{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949072,-0.315060,0.000000,0.000000,0.176121,-0.530538,0.829162,0.000000,-0.260685,0.785277,0.561590,0.000000,-1664445.629889,5013900.739033,3561679.020067,1],    "boundingVolume": {    "region": [1.891247,0.596253,1.891385,0.596359,0.000000,8.089963]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372816.b3dm"}}}