{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944034,-0.329849,0.000000,0.000000,0.184380,-0.527700,0.829178,0.000000,-0.272928,0.781123,0.561566,0.000000,-1742610.651089,4987379.894614,3561529.781945,1],    "boundingVolume": {    "region": [1.906892,0.596220,1.906988,0.596335,0.000000,8.741555]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1266448.b3dm"}}}