{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950046,-0.312111,0.000000,0.000000,0.174052,-0.529801,0.830070,0.000000,-0.258531,0.786951,0.560240,0.000000,-1650681.608746,5024565.297355,3553103.196931,1],    "boundingVolume": {    "region": [1.888129,0.594610,1.888293,0.594741,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1376971.b3dm"}}}