{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950067,-0.312045,0.000000,0.000000,0.174008,-0.529792,0.830085,0.000000,-0.258481,0.786984,0.560218,0.000000,-1650360.553725,5024771.775610,3552961.295940,1],    "boundingVolume": {    "region": [1.888059,0.594583,1.888223,0.594714,0.000000,11.432766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1458980.b3dm"}}}