{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949073,-0.315056,0.000000,0.000000,0.176115,-0.530529,0.829170,0.000000,-0.260685,0.785285,0.561579,0.000000,-1664439.934523,5013951.829289,3561610.222699,1],    "boundingVolume": {    "region": [1.891243,0.596239,1.891381,0.596346,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447706.b3dm"}}}