{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950655,-0.310251,0.000000,0.000000,0.173423,-0.531393,0.829184,0.000000,-0.256713,0.786607,0.561558,0.000000,-1639081.388119,5022394.254897,3561476.546220,1],    "boundingVolume": {    "region": [1.886204,0.596218,1.886302,0.596317,0.000000,8.798016]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1427563.b3dm"}}}