{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898200,-0.439586,0.000000,0.000000,0.283788,-0.579860,0.763693,0.000000,-0.334767,0.684024,0.648107,0.000000,-2138196.710683,4368944.676262,4111827.249575,1],    "boundingVolume": {    "region": [2.025868,0.704985,2.026001,0.705207,0.000000,8.473263]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1844490.b3dm"}}}