{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951975,-0.306177,0.000000,0.000000,0.169662,-0.527518,0.832430,0.000000,-0.254343,0.790812,0.556711,0.000000,-1623919.804200,5049145.345050,3530670.649719,1],    "boundingVolume": {    "region": [1.881917,0.590377,1.882024,0.590464,0.000000,7.820425]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/29/27_1463001.b3dm"}}}