{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949118,-0.314920,0.000000,0.000000,0.116116,-0.349956,0.929542,0.000000,-0.292462,0.881435,0.370861,0.000000,-1866224.452070,5624502.727133,2350652.550709,1],    "boundingVolume": {    "region": [1.891114,0.379879,1.891223,0.379994,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_965.b3dm"}}}