{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949728,-0.313077,0.000000,0.000000,0.115364,-0.349962,0.929633,0.000000,-0.290779,0.882089,0.370629,0.000000,-1855484.582932,5628673.687519,2349180.316919,1],    "boundingVolume": {    "region": [1.889158,0.379596,1.889296,0.379777,0.000000,24.418460]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73278.b3dm"}}}