{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949157,-0.314803,0.000000,0.000000,0.175974,-0.530577,0.829169,0.000000,-0.260475,0.785354,0.561580,0.000000,-1663103.736095,5014390.040830,3561617.435330,1],    "boundingVolume": {    "region": [1.890977,0.596241,1.891114,0.596347,0.000000,17.365746]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1447873.b3dm"}}}