{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857985,-0.513675,0.000000,0.000000,0.262900,-0.439119,0.859103,0.000000,-0.440520,0.735795,0.514341,0.000000,-2812190.729012,4697164.322297,3261467.925763,1],    "boundingVolume": {    "region": [2.110177,0.540177,2.110341,0.540302,0.000000,16.055300]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_380070.b3dm"}}}