{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943931,-0.330142,0.000000,0.000000,0.184466,-0.527419,0.829338,0.000000,-0.273223,0.781191,0.561329,0.000000,-1744493.778136,4987803.871343,3560023.982100,1],    "boundingVolume": {    "region": [1.907202,0.595934,1.907298,0.596049,0.000000,8.493529]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1270848.b3dm"}}}