{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949551,-0.313614,0.000000,0.000000,0.174979,-0.529797,0.829878,0.000000,-0.259715,0.786357,0.560526,0.000000,-1658244.277354,5020778.519515,3554921.992808,1],    "boundingVolume": {    "region": [1.889712,0.594889,1.889874,0.595154,0.000000,8.810656]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1457243.b3dm"}}}