{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950167,-0.311740,0.000000,0.000000,0.173999,-0.530340,0.829737,0.000000,-0.258119,0.786733,0.560736,0.000000,-1648055.509626,5023181.929272,3556255.591105,1],    "boundingVolume": {    "region": [1.887771,0.595216,1.887870,0.595333,0.000000,7.896787]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1454423.b3dm"}}}