{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950562,-0.310536,0.000000,0.000000,0.173664,-0.531592,0.829006,0.000000,-0.256893,0.786360,0.561822,0.000000,-1640235.205593,5020818.919854,3563154.823643,1],    "boundingVolume": {    "region": [1.886504,0.596537,1.886602,0.596636,0.000000,12.476542]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1329506.b3dm"}}}