{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950813,-0.309765,0.000000,0.000000,0.172589,-0.529756,0.830405,0.000000,-0.256692,0.787907,0.559742,0.000000,-1638936.745717,5030660.125771,3549935.941785,1],    "boundingVolume": {    "region": [1.885651,0.594001,1.885834,0.594147,0.000000,6.731379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1462445.b3dm"}}}