{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950521,-0.310662,0.000000,0.000000,0.173787,-0.531730,0.828892,0.000000,-0.256962,0.786216,0.561991,0.000000,-1640672.728498,5019905.624591,3564232.763472,1],    "boundingVolume": {    "region": [1.886637,0.596742,1.886734,0.596841,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395531.b3dm"}}}