{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950640,-0.310297,0.000000,0.000000,0.173456,-0.531409,0.829167,0.000000,-0.256746,0.786578,0.561583,0.000000,-1639290.775067,5022209.497113,3561639.612798,1],    "boundingVolume": {    "region": [1.886253,0.596249,1.886350,0.596348,0.000000,8.789140]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/3_1427770.b3dm"}}}