{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950677,-0.310183,0.000000,0.000000,0.173379,-0.531386,0.829197,0.000000,-0.256662,0.786638,0.561538,0.000000,-1638753.393983,5022591.529908,3561350.129336,1],    "boundingVolume": {    "region": [1.886133,0.596194,1.886231,0.596293,0.000000,8.797644]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1427463.b3dm"}}}