{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898102,-0.439787,0.000000,0.000000,0.284297,-0.580573,0.762961,0.000000,-0.334596,0.683289,0.648969,0.000000,-2137114.296983,4364269.471797,4117314.202177,1],    "boundingVolume": {    "region": [2.026091,0.706118,2.026224,0.706340,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821132.b3dm"}}}