{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898160,-0.439669,0.000000,0.000000,0.283884,-0.579921,0.763611,0.000000,-0.334793,0.683920,0.648203,0.000000,-2138367.409862,4368281.916598,4112438.464907,1],    "boundingVolume": {    "region": [2.025960,0.705111,2.026092,0.705333,0.000000,8.473263]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1844677.b3dm"}}}