{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898087,-0.439819,0.000000,0.000000,0.284318,-0.580563,0.762961,0.000000,-0.334620,0.683277,0.648970,0.000000,-2137270.318399,4364191.982958,4117315.343632,1],    "boundingVolume": {    "region": [2.026127,0.706118,2.026259,0.706341,0.000000,35.525152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1821146.b3dm"}}}