{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858455,-0.512889,0.000000,0.000000,0.262411,-0.439214,0.859204,0.000000,-0.439898,0.736286,0.514172,0.000000,-2808217.636191,4700291.657593,3260392.873875,1],    "boundingVolume": {    "region": [2.109261,0.539980,2.109425,0.540105,0.000000,16.860033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_127369.b3dm"}}}