{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950466,-0.310829,0.000000,0.000000,0.114364,-0.349706,0.929853,0.000000,-0.288761,0.882986,0.370072,0.000000,-1842600.925145,5634387.106645,2345645.812356,1],    "boundingVolume": {    "region": [1.886787,0.379047,1.886935,0.379126,0.000000,19.368480]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_4222.b3dm"}}}