{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950532,-0.310625,0.000000,0.000000,0.173498,-0.530915,0.829474,0.000000,-0.257114,0.786784,0.561127,0.000000,-1641638.040341,5023512.430952,3558739.353635,1],    "boundingVolume": {    "region": [1.886589,0.595690,1.886705,0.595804,0.000000,8.799150]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1424390.b3dm"}}}