{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949186,-0.314717,0.000000,0.000000,0.116581,-0.351607,0.928860,0.000000,-0.292057,0.880844,0.372581,0.000000,-1863647.518677,5620755.151591,2361561.991070,1],    "boundingVolume": {    "region": [1.890886,0.381739,1.891024,0.381839,0.000000,29.734073]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/18_68523.b3dm"}}}