{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949080,-0.315035,0.000000,0.000000,0.116130,-0.349856,0.929578,0.000000,-0.292580,0.881434,0.370770,0.000000,-1866977.652684,5624497.112778,2350071.726717,1],    "boundingVolume": {    "region": [1.891235,0.379780,1.891344,0.379895,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76926.b3dm"}}}