{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950639,-0.310298,0.000000,0.000000,0.173456,-0.531406,0.829168,0.000000,-0.256748,0.786580,0.561581,0.000000,-1639302.419308,5022217.965930,3561622.427396,1],    "boundingVolume": {    "region": [1.886254,0.596246,1.886352,0.596344,0.000000,8.789140]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/3_1427750.b3dm"}}}