{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949484,-0.313815,0.000000,0.000000,0.175410,-0.530725,0.829194,0.000000,-0.259666,0.785648,0.561543,0.000000,-1657933.483627,5016270.147427,3561382.027667,1],    "boundingVolume": {    "region": [1.889955,0.596208,1.890054,0.596290,0.000000,8.782828]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1443920.b3dm"}}}