{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950251,-0.311486,0.000000,0.000000,0.173886,-0.530473,0.829676,0.000000,-0.257890,0.786744,0.560827,0.000000,-1646589.319326,5023251.112190,3556833.096894,1],    "boundingVolume": {    "region": [1.887503,0.595326,1.887603,0.595443,0.000000,8.385129]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1345223.b3dm"}}}