{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949090,-0.315004,0.000000,0.000000,0.115987,-0.349464,0.929743,0.000000,-0.292604,0.881602,0.370352,0.000000,-1867128.024970,5625561.722974,2347420.419185,1],    "boundingVolume": {    "region": [1.891203,0.379330,1.891311,0.379446,0.000000,47.612015]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/16_6915.b3dm"}}}