{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897615,-0.440781,0.000000,0.000000,0.283015,-0.576337,0.766641,0.000000,-0.336982,0.686237,0.644609,0.000000,-2152315.899796,4383016.550433,4089574.338065,1],    "boundingVolume": {    "region": [2.027202,0.700478,2.027328,0.700546,0.000000,11.294478]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_856523.b3dm"}}}