{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897870,-0.440260,0.000000,0.000000,0.282645,-0.576428,0.766709,0.000000,-0.336615,0.686495,0.644527,0.000000,-2149967.408713,4384657.609563,4089053.992087,1],    "boundingVolume": {    "region": [2.026622,0.700371,2.026748,0.700439,0.000000,15.922161]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_852801.b3dm"}}}