{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948953,-0.315418,0.000000,0.000000,0.175861,-0.529089,0.830143,0.000000,-0.261293,0.786116,0.560131,0.000000,-1668318.317838,5019229.908682,3552411.402331,1],    "boundingVolume": {    "region": [1.891646,0.594449,1.891741,0.594640,0.000000,8.725880]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/26_1092810.b3dm"}}}