{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950393,-0.311053,0.000000,0.000000,0.173974,-0.531562,0.828960,0.000000,-0.257306,0.786176,0.561890,0.000000,-1642873.094012,5019645.202498,3563590.264937,1],    "boundingVolume": {    "region": [1.887048,0.596620,1.887146,0.596719,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394332.b3dm"}}}